From d91525eb8ee6a622ce476955fe1a2530ade87c83 Mon Sep 17 00:00:00 2001 From: "Chen, Gong" Date: Wed, 10 Dec 2014 13:53:26 -0800 Subject: ACPI, EINJ: Enhance error injection tolerance level Some BIOSes utilize PCI MMCFG space read/write opertion to trigger specific errors. EINJ will report errors as below when hitting such cases: APEI: Can not request [mem 0x83f990a0-0x83f990a3] for APEI EINJ Trigger registers It is because on x86 platform ACPI based PCI MMCFG logic has reserved all MMCFG spaces so that EINJ can't reserve it again. We already trust the ACPI/APEI code when using the EINJ interface so it is not a big leap to also trust it to access the right MMCFG addresses. Skip address checking to allow the access. Signed-off-by: Chen, Gong Signed-off-by: Tony Luck --- drivers/acpi/apei/apei-base.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 2cd7bdd6c8b3..a85ac07f3da3 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -449,7 +449,7 @@ int apei_resources_sub(struct apei_resources *resources1, } EXPORT_SYMBOL_GPL(apei_resources_sub); -static int apei_get_nvs_callback(__u64 start, __u64 size, void *data) +static int apei_get_res_callback(__u64 start, __u64 size, void *data) { struct apei_resources *resources = data; return apei_res_add(&resources->iomem, start, size); @@ -457,7 +457,15 @@ static int apei_get_nvs_callback(__u64 start, __u64 size, void *data) static int apei_get_nvs_resources(struct apei_resources *resources) { - return acpi_nvs_for_each_region(apei_get_nvs_callback, resources); + return acpi_nvs_for_each_region(apei_get_res_callback, resources); +} + +int (*arch_apei_filter_addr)(int (*func)(__u64 start, __u64 size, + void *data), void *data); +static int apei_get_arch_resources(struct apei_resources *resources) + +{ + return arch_apei_filter_addr(apei_get_res_callback, resources); } /* @@ -470,7 +478,7 @@ int apei_resources_request(struct apei_resources *resources, { struct apei_res *res, *res_bak = NULL; struct resource *r; - struct apei_resources nvs_resources; + struct apei_resources nvs_resources, arch_res; int rc; rc = apei_resources_sub(resources, &apei_resources_all); @@ -485,10 +493,20 @@ int apei_resources_request(struct apei_resources *resources, apei_resources_init(&nvs_resources); rc = apei_get_nvs_resources(&nvs_resources); if (rc) - goto res_fini; + goto nvs_res_fini; rc = apei_resources_sub(resources, &nvs_resources); if (rc) - goto res_fini; + goto nvs_res_fini; + + if (arch_apei_filter_addr) { + apei_resources_init(&arch_res); + rc = apei_get_arch_resources(&arch_res); + if (rc) + goto arch_res_fini; + rc = apei_resources_sub(resources, &arch_res); + if (rc) + goto arch_res_fini; + } rc = -EINVAL; list_for_each_entry(res, &resources->iomem, list) { @@ -536,7 +554,9 @@ err_unmap_iomem: break; release_mem_region(res->start, res->end - res->start); } -res_fini: +arch_res_fini: + apei_resources_fini(&arch_res); +nvs_res_fini: apei_resources_fini(&nvs_resources); return rc; } -- cgit v1.2.3 From 053c095a82cf773075e83d7233b5cc19a1f73ece Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jan 2015 22:09:00 +0100 Subject: netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- drivers/acpi/event.c | 7 +------ drivers/net/ethernet/rocker/rocker.c | 3 ++- drivers/net/vxlan.c | 3 ++- drivers/net/wireless/mac80211_hwsim.c | 3 ++- drivers/scsi/pmcraid.c | 8 +------- drivers/target/target_core_user.c | 4 +--- drivers/thermal/thermal_core.c | 6 +----- fs/dlm/netlink.c | 7 +------ include/net/genetlink.h | 4 ++-- include/net/netlink.h | 6 +----- kernel/taskstats.c | 13 ++----------- net/bridge/br_fdb.c | 3 ++- net/bridge/br_mdb.c | 3 ++- net/bridge/br_netlink.c | 3 ++- net/can/gw.c | 3 ++- net/core/fib_rules.c | 3 ++- net/core/neighbour.c | 12 ++++++++---- net/core/rtnetlink.c | 9 ++++++--- net/decnet/dn_dev.c | 3 ++- net/decnet/dn_route.c | 3 ++- net/decnet/dn_table.c | 3 ++- net/ieee802154/netlink.c | 12 ++---------- net/ieee802154/nl-mac.c | 3 ++- net/ieee802154/nl-phy.c | 3 ++- net/ieee802154/nl802154.c | 6 ++++-- net/ipv4/devinet.c | 8 +++++--- net/ipv4/fib_semantics.c | 3 ++- net/ipv4/inet_diag.c | 9 ++++++--- net/ipv4/ipmr.c | 3 ++- net/ipv4/route.c | 3 ++- net/ipv4/tcp_metrics.c | 3 ++- net/ipv6/addrconf.c | 32 +++++++++++++++++++------------- net/ipv6/addrlabel.c | 5 +++-- net/ipv6/ip6_fib.c | 1 - net/ipv6/ip6mr.c | 3 ++- net/ipv6/route.c | 3 ++- net/l2tp/l2tp_netlink.c | 10 ++++++---- net/netfilter/ipvs/ip_vs_ctl.c | 9 ++++++--- net/netfilter/nf_tables_api.c | 18 ++++++++++++------ net/netlabel/netlabel_cipso_v4.c | 3 ++- net/netlabel/netlabel_mgmt.c | 6 ++++-- net/netlabel/netlabel_unlabeled.c | 3 ++- net/netlink/diag.c | 3 ++- net/netlink/genetlink.c | 6 ++++-- net/nfc/netlink.c | 12 +++++++----- net/openvswitch/datapath.c | 9 ++++++--- net/packet/diag.c | 3 ++- net/phonet/pn_netlink.c | 16 +++++++++++----- net/unix/diag.c | 3 ++- net/wireless/nl80211.c | 27 ++++++++++++++++++--------- net/xfrm/xfrm_user.c | 27 ++++++++++++++++++--------- 51 files changed, 203 insertions(+), 158 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index ef2d730734dc..e24ea4e796e4 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -100,7 +100,6 @@ int acpi_bus_generate_netlink_event(const char *device_class, struct acpi_genl_event *event; void *msg_header; int size; - int result; /* allocate memory */ size = nla_total_size(sizeof(struct acpi_genl_event)) + @@ -137,11 +136,7 @@ int acpi_bus_generate_netlink_event(const char *device_class, event->data = data; /* send multicast genetlink message */ - result = genlmsg_end(skb, msg_header); - if (result < 0) { - nlmsg_free(skb); - return result; - } + genlmsg_end(skb, msg_header); genlmsg_multicast(&acpi_event_genl_family, skb, 0, 0, GFP_ATOMIC); return 0; diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c index 964d719b150f..d54781e71cd4 100644 --- a/drivers/net/ethernet/rocker/rocker.c +++ b/drivers/net/ethernet/rocker/rocker.c @@ -3674,7 +3674,8 @@ static int rocker_fdb_fill_info(struct sk_buff *skb, if (vid && nla_put_u16(skb, NDA_VLAN, vid)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 6b6b45622a0a..c5f79e7513a6 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -363,7 +363,8 @@ static int vxlan_fdb_info(struct sk_buff *skb, struct vxlan_dev *vxlan, if (nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 494e7335aa64..4a4c6586a8d2 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2557,7 +2557,8 @@ static int mac80211_hwsim_get_radio(struct sk_buff *skb, if (res < 0) goto out_err; - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; out_err: genlmsg_cancel(skb, hdr); diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 8c27b6a77ec4..cf222f46eac5 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -1473,13 +1473,7 @@ static int pmcraid_notify_aen( } /* send genetlink multicast message to notify appplications */ - result = genlmsg_end(skb, msg_header); - - if (result < 0) { - pmcraid_err("genlmsg_end failed\n"); - nlmsg_free(skb); - return result; - } + genlmsg_end(skb, msg_header); result = genlmsg_multicast(&pmcraid_event_family, skb, 0, 0, GFP_ATOMIC); diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 1157b559683b..1a1bcf71ec9d 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -784,9 +784,7 @@ static int tcmu_netlink_event(enum tcmu_genl_cmd cmd, const char *name, int mino if (ret < 0) goto free_skb; - ret = genlmsg_end(skb, msg_header); - if (ret < 0) - goto free_skb; + genlmsg_end(skb, msg_header); ret = genlmsg_multicast(&tcmu_genl_family, skb, 0, TCMU_MCGRP_CONFIG, GFP_KERNEL); diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 87e0b0782023..48491d1a81d6 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1759,11 +1759,7 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz, thermal_event->event = event; /* send multicast genetlink message */ - result = genlmsg_end(skb, msg_header); - if (result < 0) { - nlmsg_free(skb); - return result; - } + genlmsg_end(skb, msg_header); result = genlmsg_multicast(&thermal_event_genl_family, skb, 0, 0, GFP_ATOMIC); diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c index e7cfbaf8d0e2..1e6e227134d7 100644 --- a/fs/dlm/netlink.c +++ b/fs/dlm/netlink.c @@ -56,13 +56,8 @@ static int send_data(struct sk_buff *skb) { struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data); void *data = genlmsg_data(genlhdr); - int rv; - rv = genlmsg_end(skb, data); - if (rv < 0) { - nlmsg_free(skb); - return rv; - } + genlmsg_end(skb, data); return genlmsg_unicast(&init_net, skb, listener_nlportid); } diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 84125088c309..f24aa83b80b6 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -245,9 +245,9 @@ static inline void *genlmsg_put_reply(struct sk_buff *skb, * @skb: socket buffer the message is stored in * @hdr: user specific header */ -static inline int genlmsg_end(struct sk_buff *skb, void *hdr) +static inline void genlmsg_end(struct sk_buff *skb, void *hdr) { - return nlmsg_end(skb, hdr - GENL_HDRLEN - NLMSG_HDRLEN); + nlmsg_end(skb, hdr - GENL_HDRLEN - NLMSG_HDRLEN); } /** diff --git a/include/net/netlink.h b/include/net/netlink.h index d5869b90bfbb..e010ee8da41d 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -490,14 +490,10 @@ static inline struct sk_buff *nlmsg_new(size_t payload, gfp_t flags) * Corrects the netlink message header to include the appeneded * attributes. Only necessary if attributes have been added to * the message. - * - * Returns the total data length of the skb. */ -static inline int nlmsg_end(struct sk_buff *skb, struct nlmsghdr *nlh) +static inline void nlmsg_end(struct sk_buff *skb, struct nlmsghdr *nlh) { nlh->nlmsg_len = skb_tail_pointer(skb) - (unsigned char *)nlh; - - return skb->len; } /** diff --git a/kernel/taskstats.c b/kernel/taskstats.c index 670fff88a961..21f82c29c914 100644 --- a/kernel/taskstats.c +++ b/kernel/taskstats.c @@ -111,13 +111,8 @@ static int send_reply(struct sk_buff *skb, struct genl_info *info) { struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb)); void *reply = genlmsg_data(genlhdr); - int rc; - rc = genlmsg_end(skb, reply); - if (rc < 0) { - nlmsg_free(skb); - return rc; - } + genlmsg_end(skb, reply); return genlmsg_reply(skb, info); } @@ -134,11 +129,7 @@ static void send_cpu_listeners(struct sk_buff *skb, void *reply = genlmsg_data(genlhdr); int rc, delcount = 0; - rc = genlmsg_end(skb, reply); - if (rc < 0) { - nlmsg_free(skb); - return; - } + genlmsg_end(skb, reply); rc = 0; down_read(&listeners->sem); diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 03667e65cc29..08bf04bdac58 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -633,7 +633,8 @@ static int fdb_fill_info(struct sk_buff *skb, const struct net_bridge *br, if (fdb->vlan_id && nla_put(skb, NDA_VLAN, sizeof(u16), &fdb->vlan_id)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index fed61c971b17..409608960899 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -190,7 +190,8 @@ static int nlmsg_populate_mdb_fill(struct sk_buff *skb, nla_nest_end(skb, nest2); nla_nest_end(skb, nest); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; end: nla_nest_end(skb, nest); diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 163950b10d8c..528cf2790a5f 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -263,7 +263,8 @@ static int br_fill_ifinfo(struct sk_buff *skb, } done: - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/can/gw.c b/net/can/gw.c index 295f62e62eb3..a6f448e18ea8 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -575,7 +575,8 @@ static int cgw_put_job(struct sk_buff *skb, struct cgw_job *gwj, int type, goto cancel; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; cancel: nlmsg_cancel(skb, nlh); diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 185c341fafbd..44706e81b2e0 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -609,7 +609,8 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, if (ops->fill(rule, skb, frh) < 0) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 8d614c93f86a..d36d564f149f 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -1884,7 +1884,8 @@ static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl, goto nla_put_failure; read_unlock_bh(&tbl->lock); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: read_unlock_bh(&tbl->lock); @@ -1917,7 +1918,8 @@ static int neightbl_fill_param_info(struct sk_buff *skb, goto errout; read_unlock_bh(&tbl->lock); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; errout: read_unlock_bh(&tbl->lock); nlmsg_cancel(skb, nlh); @@ -2202,7 +2204,8 @@ static int neigh_fill_info(struct sk_buff *skb, struct neighbour *neigh, nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -2232,7 +2235,8 @@ static int pneigh_fill_info(struct sk_buff *skb, struct pneigh_entry *pn, if (nla_put(skb, NDA_DST, tbl->key_len, pn->key)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index eadc5c0e2dfa..e13b9dbdf154 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1199,7 +1199,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, nla_nest_end(skb, af_spec); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -2326,7 +2327,8 @@ static int nlmsg_populate_fdb_fill(struct sk_buff *skb, if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -2809,7 +2811,8 @@ int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, nla_nest_end(skb, protinfo); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); return -EMSGSIZE; diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c index 4400da7739da..b2c26b081134 100644 --- a/net/decnet/dn_dev.c +++ b/net/decnet/dn_dev.c @@ -702,7 +702,8 @@ static int dn_nl_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa, nla_put_string(skb, IFA_LABEL, ifa->ifa_label)) || nla_put_u32(skb, IFA_FLAGS, ifa_flags)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c index daccc4a36d80..812e5e6e88fb 100644 --- a/net/decnet/dn_route.c +++ b/net/decnet/dn_route.c @@ -1616,7 +1616,8 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 portid, u32 seq, nla_put_u32(skb, RTA_IIF, rt->fld.flowidn_iif) < 0) goto errout; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; errout: nlmsg_cancel(skb, nlh); diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c index 3f19fcbf126d..1540b506e3e0 100644 --- a/net/decnet/dn_table.c +++ b/net/decnet/dn_table.c @@ -367,7 +367,8 @@ static int dn_fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event, nla_nest_end(skb, mp_head); } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; errout: nlmsg_cancel(skb, nlh); diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c index fa1464762d0d..c8133c07ceee 100644 --- a/net/ieee802154/netlink.c +++ b/net/ieee802154/netlink.c @@ -63,13 +63,9 @@ int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group) struct nlmsghdr *nlh = nlmsg_hdr(msg); void *hdr = genlmsg_data(nlmsg_data(nlh)); - if (genlmsg_end(msg, hdr) < 0) - goto out; + genlmsg_end(msg, hdr); return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC); -out: - nlmsg_free(msg); - return -ENOBUFS; } struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info, @@ -96,13 +92,9 @@ int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info) struct nlmsghdr *nlh = nlmsg_hdr(msg); void *hdr = genlmsg_data(nlmsg_data(nlh)); - if (genlmsg_end(msg, hdr) < 0) - goto out; + genlmsg_end(msg, hdr); return genlmsg_reply(msg, info); -out: - nlmsg_free(msg); - return -ENOBUFS; } static const struct genl_ops ieee8021154_ops[] = { diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c index 3c902e9516fb..9105265920fe 100644 --- a/net/ieee802154/nl-mac.c +++ b/net/ieee802154/nl-mac.c @@ -136,7 +136,8 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, } wpan_phy_put(phy); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: wpan_phy_put(phy); diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c index 7baf98b14611..1b9d25f6e898 100644 --- a/net/ieee802154/nl-phy.c +++ b/net/ieee802154/nl-phy.c @@ -65,7 +65,8 @@ static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid, goto nla_put_failure; mutex_unlock(&phy->pib_lock); kfree(buf); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: mutex_unlock(&phy->pib_lock); diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index a25b9bbd077b..a4daf91b8d0a 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -306,7 +306,8 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, goto nla_put_failure; finish: - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -489,7 +490,8 @@ nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 214882e7d6de..5f344eb3fc25 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1522,7 +1522,8 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa, preferred, valid)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -1566,7 +1567,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, - RTM_NEWADDR, NLM_F_MULTI) <= 0) { + RTM_NEWADDR, NLM_F_MULTI) < 0) { rcu_read_unlock(); goto done; } @@ -1749,7 +1750,8 @@ static int inet_netconf_fill_devconf(struct sk_buff *skb, int ifindex, IPV4_DEVCONF(*devconf, PROXY_ARP)) < 0) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index d2b7b5521b1b..265cb72b7c1b 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1091,7 +1091,8 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event, nla_nest_end(skb, mp); } #endif - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index e34dccbc4d70..81751f12645f 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -203,7 +203,8 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, icsk->icsk_ca_ops->get_info(sk, ext, skb); out: - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; errout: nlmsg_cancel(skb, nlh); @@ -271,7 +272,8 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw, } #endif - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, @@ -758,7 +760,8 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk, } #endif - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk, diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index c8034587859d..9d78427652d2 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -2290,7 +2290,8 @@ static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb, if (err < 0 && err != -ENOENT) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index ce112d0f2698..f6e43ca5e641 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2390,7 +2390,8 @@ static int rt_fill_info(struct net *net, __be32 dst, __be32 src, if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, error) < 0) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index ed9c9a91851c..e5f41bd5ec1b 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -886,7 +886,8 @@ static int tcp_metrics_dump_info(struct sk_buff *skb, if (tcp_metrics_fill_info(skb, tm) < 0) goto nla_put_failure; - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f7c8bbeb27b7..8975d9501d50 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -489,7 +489,8 @@ static int inet6_netconf_fill_devconf(struct sk_buff *skb, int ifindex, nla_put_s32(skb, NETCONFA_PROXY_NEIGH, devconf->proxy_ndp) < 0) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -619,7 +620,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb, cb->nlh->nlmsg_seq, RTM_NEWNETCONF, NLM_F_MULTI, - -1) <= 0) { + -1) < 0) { rcu_read_unlock(); goto done; } @@ -635,7 +636,7 @@ cont: NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, RTM_NEWNETCONF, NLM_F_MULTI, - -1) <= 0) + -1) < 0) goto done; else h++; @@ -646,7 +647,7 @@ cont: NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, RTM_NEWNETCONF, NLM_F_MULTI, - -1) <= 0) + -1) < 0) goto done; else h++; @@ -4047,7 +4048,8 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, if (nla_put_u32(skb, IFA_FLAGS, ifa->flags) < 0) goto error; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; error: nlmsg_cancel(skb, nlh); @@ -4076,7 +4078,8 @@ static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca, return -EMSGSIZE; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca, @@ -4101,7 +4104,8 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca, return -EMSGSIZE; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } enum addr_type_t { @@ -4134,7 +4138,7 @@ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb, cb->nlh->nlmsg_seq, RTM_NEWADDR, NLM_F_MULTI); - if (err <= 0) + if (err < 0) break; nl_dump_check_consistent(cb, nlmsg_hdr(skb)); } @@ -4151,7 +4155,7 @@ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb, cb->nlh->nlmsg_seq, RTM_GETMULTICAST, NLM_F_MULTI); - if (err <= 0) + if (err < 0) break; } break; @@ -4166,7 +4170,7 @@ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb, cb->nlh->nlmsg_seq, RTM_GETANYCAST, NLM_F_MULTI); - if (err <= 0) + if (err < 0) break; } break; @@ -4638,7 +4642,8 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, goto nla_put_failure; nla_nest_end(skb, protoinfo); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -4670,7 +4675,7 @@ static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) if (inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, - RTM_NEWLINK, NLM_F_MULTI) <= 0) + RTM_NEWLINK, NLM_F_MULTI) < 0) goto out; cont: idx++; @@ -4747,7 +4752,8 @@ static int inet6_fill_prefix(struct sk_buff *skb, struct inet6_dev *idev, ci.valid_time = ntohl(pinfo->valid); if (nla_put(skb, PREFIX_CACHEINFO, sizeof(ci), &ci)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c index fd0dc47f471d..e43e79d0a612 100644 --- a/net/ipv6/addrlabel.c +++ b/net/ipv6/addrlabel.c @@ -490,7 +490,8 @@ static int ip6addrlbl_fill(struct sk_buff *skb, return -EMSGSIZE; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int ip6addrlbl_dump(struct sk_buff *skb, struct netlink_callback *cb) @@ -510,7 +511,7 @@ static int ip6addrlbl_dump(struct sk_buff *skb, struct netlink_callback *cb) cb->nlh->nlmsg_seq, RTM_NEWADDRLABEL, NLM_F_MULTI); - if (err <= 0) + if (err < 0) break; } idx++; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 03c520a4ebeb..53775ee7d376 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -277,7 +277,6 @@ static int fib6_dump_node(struct fib6_walker *w) w->leaf = rt; return 1; } - WARN_ON(res == 0); } w->leaf = NULL; return 0; diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 722669754bbf..34b682617f50 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -2388,7 +2388,8 @@ static int ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb, if (err < 0 && err != -ENOENT) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 34dcbb59df75..c60f15775c53 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2725,7 +2725,8 @@ static int rt6_fill_node(struct net *net, if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, rt->dst.error) < 0) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c index 6b16598f31d5..b4e923f77954 100644 --- a/net/l2tp/l2tp_netlink.c +++ b/net/l2tp/l2tp_netlink.c @@ -390,7 +390,8 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla } out: - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); @@ -451,7 +452,7 @@ static int l2tp_nl_cmd_tunnel_dump(struct sk_buff *skb, struct netlink_callback if (l2tp_nl_tunnel_send(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - tunnel, L2TP_CMD_TUNNEL_GET) <= 0) + tunnel, L2TP_CMD_TUNNEL_GET) < 0) goto out; ti++; @@ -752,7 +753,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int fl goto nla_put_failure; nla_nest_end(skb, nest); - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); @@ -816,7 +818,7 @@ static int l2tp_nl_cmd_session_dump(struct sk_buff *skb, struct netlink_callback if (l2tp_nl_session_send(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - session, L2TP_CMD_SESSION_GET) <= 0) + session, L2TP_CMD_SESSION_GET) < 0) break; si++; diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index b8295a430a56..e55759056361 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2887,7 +2887,8 @@ static int ip_vs_genl_dump_service(struct sk_buff *skb, if (ip_vs_genl_fill_service(skb, svc) < 0) goto nla_put_failure; - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); @@ -3079,7 +3080,8 @@ static int ip_vs_genl_dump_dest(struct sk_buff *skb, struct ip_vs_dest *dest, if (ip_vs_genl_fill_dest(skb, dest) < 0) goto nla_put_failure; - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); @@ -3215,7 +3217,8 @@ static int ip_vs_genl_dump_daemon(struct sk_buff *skb, __u32 state, if (ip_vs_genl_fill_daemon(skb, state, mcast_ifn, syncid)) goto nla_put_failure; - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 3b3ddb4fb9ee..70f697827b9b 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -427,7 +427,8 @@ static int nf_tables_fill_table_info(struct sk_buff *skb, struct net *net, nla_put_be32(skb, NFTA_TABLE_USE, htonl(table->use))) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); @@ -971,7 +972,8 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, struct net *net, if (nla_put_be32(skb, NFTA_CHAIN_USE, htonl(chain->use))) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); @@ -1707,7 +1709,8 @@ static int nf_tables_fill_rule_info(struct sk_buff *skb, struct net *net, nla_put(skb, NFTA_RULE_USERDATA, rule->ulen, nft_userdata(rule))) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); @@ -2361,7 +2364,8 @@ static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx, goto nla_put_failure; nla_nest_end(skb, desc); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); @@ -3035,7 +3039,8 @@ static int nf_tables_fill_setelem_info(struct sk_buff *skb, nla_nest_end(skb, nest); - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); @@ -3324,7 +3329,8 @@ static int nf_tables_fill_gen_info(struct sk_buff *skb, struct net *net, if (nla_put_be32(skb, NFTA_GEN_ID, htonl(net->nft.base_seq))) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_trim(skb, nlh); diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c index c2f2a53a4879..179625353cac 100644 --- a/net/netlabel/netlabel_cipso_v4.c +++ b/net/netlabel/netlabel_cipso_v4.c @@ -641,7 +641,8 @@ static int netlbl_cipsov4_listall_cb(struct cipso_v4_doi *doi_def, void *arg) if (ret_val != 0) goto listall_cb_failure; - return genlmsg_end(cb_arg->skb, data); + genlmsg_end(cb_arg->skb, data); + return 0; listall_cb_failure: genlmsg_cancel(cb_arg->skb, data); diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c index e66e977ef2fa..8b3b789c43c2 100644 --- a/net/netlabel/netlabel_mgmt.c +++ b/net/netlabel/netlabel_mgmt.c @@ -456,7 +456,8 @@ static int netlbl_mgmt_listall_cb(struct netlbl_dom_map *entry, void *arg) goto listall_cb_failure; cb_arg->seq++; - return genlmsg_end(cb_arg->skb, data); + genlmsg_end(cb_arg->skb, data); + return 0; listall_cb_failure: genlmsg_cancel(cb_arg->skb, data); @@ -620,7 +621,8 @@ static int netlbl_mgmt_protocols_cb(struct sk_buff *skb, if (ret_val != 0) goto protocols_cb_failure; - return genlmsg_end(skb, data); + genlmsg_end(skb, data); + return 0; protocols_cb_failure: genlmsg_cancel(skb, data); diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 78a63c18779e..aec7994f78cf 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c @@ -1163,7 +1163,8 @@ static int netlbl_unlabel_staticlist_gen(u32 cmd, goto list_cb_failure; cb_arg->seq++; - return genlmsg_end(cb_arg->skb, data); + genlmsg_end(cb_arg->skb, data); + return 0; list_cb_failure: genlmsg_cancel(cb_arg->skb, data); diff --git a/net/netlink/diag.c b/net/netlink/diag.c index bb59a7ed0859..3ee63a3cff30 100644 --- a/net/netlink/diag.c +++ b/net/netlink/diag.c @@ -91,7 +91,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, sk_diag_put_rings_cfg(sk, skb)) goto out_nlmsg_trim; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; out_nlmsg_trim: nlmsg_cancel(skb, nlh); diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 2e11061ef885..f52a7d5734cd 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -756,7 +756,8 @@ static int ctrl_fill_info(struct genl_family *family, u32 portid, u32 seq, nla_nest_end(skb, nla_grps); } - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); @@ -796,7 +797,8 @@ static int ctrl_fill_mcgrp_info(struct genl_family *family, nla_nest_end(skb, nest); nla_nest_end(skb, nla_grps); - return genlmsg_end(skb, hdr); + genlmsg_end(skb, hdr); + return 0; nla_put_failure: genlmsg_cancel(skb, hdr); diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 44989fc8cddf..be387e6219a0 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -102,7 +102,8 @@ static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target, goto nla_put_failure; } - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -518,7 +519,8 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev, nla_put_u8(msg, NFC_ATTR_RF_MODE, dev->rf_mode)) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -908,7 +910,8 @@ static int nfc_genl_send_params(struct sk_buff *msg, nla_put_u16(msg, NFC_ATTR_LLC_PARAM_MIUX, be16_to_cpu(local->miux))) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: @@ -1247,8 +1250,7 @@ static int nfc_genl_send_se(struct sk_buff *msg, struct nfc_dev *dev, nla_put_u8(msg, NFC_ATTR_SE_TYPE, se->type)) goto nla_put_failure; - if (genlmsg_end(msg, hdr) < 0) - goto nla_put_failure; + genlmsg_end(msg, hdr); } return 0; diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 8bda3cc12344..f45f1bf4422c 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -799,7 +799,8 @@ static int ovs_flow_cmd_fill_info(const struct sw_flow *flow, int dp_ifindex, if (err) goto error; - return genlmsg_end(skb, ovs_header); + genlmsg_end(skb, ovs_header); + return 0; error: genlmsg_cancel(skb, ovs_header); @@ -1349,7 +1350,8 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb, if (nla_put_u32(skb, OVS_DP_ATTR_USER_FEATURES, dp->user_features)) goto nla_put_failure; - return genlmsg_end(skb, ovs_header); + genlmsg_end(skb, ovs_header); + return 0; nla_put_failure: genlmsg_cancel(skb, ovs_header); @@ -1723,7 +1725,8 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb, if (err == -EMSGSIZE) goto error; - return genlmsg_end(skb, ovs_header); + genlmsg_end(skb, ovs_header); + return 0; nla_put_failure: err = -EMSGSIZE; diff --git a/net/packet/diag.c b/net/packet/diag.c index 92f2c7107eec..0ed68f0238bf 100644 --- a/net/packet/diag.c +++ b/net/packet/diag.c @@ -177,7 +177,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, PACKET_DIAG_FILTER)) goto out_nlmsg_trim; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; out_nlmsg_trim: nlmsg_cancel(skb, nlh); diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c index b64151ade6b3..54d766842c2b 100644 --- a/net/phonet/pn_netlink.c +++ b/net/phonet/pn_netlink.c @@ -121,7 +121,8 @@ static int fill_addr(struct sk_buff *skb, struct net_device *dev, u8 addr, ifm->ifa_index = dev->ifindex; if (nla_put_u8(skb, IFA_LOCAL, addr)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -190,7 +191,8 @@ static int fill_route(struct sk_buff *skb, struct net_device *dev, u8 dst, if (nla_put_u8(skb, RTA_DST, dst) || nla_put_u32(skb, RTA_OIF, dev->ifindex)) goto nla_put_failure; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; nla_put_failure: nlmsg_cancel(skb, nlh); @@ -282,9 +284,13 @@ static int route_dumpit(struct sk_buff *skb, struct netlink_callback *cb) if (addr_idx++ < addr_start_idx) continue; - if (fill_route(skb, dev, addr << 2, NETLINK_CB(cb->skb).portid, - cb->nlh->nlmsg_seq, RTM_NEWROUTE)) - goto out; + fill_route(skb, dev, addr << 2, NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, RTM_NEWROUTE); + /* fill_route() used to return > 0 (or negative errors) but + * never 0 - ignore the return value and just go out to + * call dumpit again from outside to preserve the behavior + */ + goto out; } out: diff --git a/net/unix/diag.c b/net/unix/diag.c index 86fa0f3b2caf..ef542fbca9fe 100644 --- a/net/unix/diag.c +++ b/net/unix/diag.c @@ -155,7 +155,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r if (nla_put_u8(skb, UNIX_DIAG_SHUTDOWN, sk->sk_shutdown)) goto out_nlmsg_trim; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; out_nlmsg_trim: nlmsg_cancel(skb, nlh); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 380784378df8..4ed9039bd5f9 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1721,7 +1721,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, break; } finish: - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -2404,7 +2405,8 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag goto nla_put_failure; } - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -3825,7 +3827,8 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, sinfo->assoc_req_ies)) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -4555,7 +4558,8 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, nla_nest_end(msg, pinfoattr); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -5507,7 +5511,8 @@ static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb, nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -6577,7 +6582,8 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, nla_nest_end(msg, bss); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; fail_unlock_rcu: rcu_read_unlock(); @@ -6686,7 +6692,8 @@ static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, nla_nest_end(msg, infoattr); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -11025,7 +11032,8 @@ static int nl80211_send_scan_msg(struct sk_buff *msg, /* ignore errors and send incomplete event anyway */ nl80211_add_scan_req(msg, rdev); - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); @@ -11048,7 +11056,8 @@ nl80211_send_sched_scan_msg(struct sk_buff *msg, nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) goto nla_put_failure; - return genlmsg_end(msg, hdr); + genlmsg_end(msg, hdr); + return 0; nla_put_failure: genlmsg_cancel(msg, hdr); diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 8128594ab379..7de2ed9ec46d 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1019,7 +1019,8 @@ static int build_spdinfo(struct sk_buff *skb, struct net *net, return err; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_set_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh, @@ -1121,7 +1122,8 @@ static int build_sadinfo(struct sk_buff *skb, struct net *net, return err; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh, @@ -1842,7 +1844,8 @@ static int build_aevent(struct sk_buff *skb, struct xfrm_state *x, const struct if (err) goto out_cancel; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; out_cancel: nlmsg_cancel(skb, nlh); @@ -2282,7 +2285,8 @@ static int build_migrate(struct sk_buff *skb, const struct xfrm_migrate *m, goto out_cancel; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; out_cancel: nlmsg_cancel(skb, nlh); @@ -2490,7 +2494,8 @@ static int build_expire(struct sk_buff *skb, struct xfrm_state *x, const struct if (err) return err; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_exp_state_notify(struct xfrm_state *x, const struct km_event *c) @@ -2712,7 +2717,8 @@ static int build_acquire(struct sk_buff *skb, struct xfrm_state *x, return err; } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt, @@ -2827,7 +2833,8 @@ static int build_polexpire(struct sk_buff *skb, struct xfrm_policy *xp, } upe->hard = !!hard; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, const struct km_event *c) @@ -2986,7 +2993,8 @@ static int build_report(struct sk_buff *skb, u8 proto, return err; } } - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_send_report(struct net *net, u8 proto, @@ -3031,7 +3039,8 @@ static int build_mapping(struct sk_buff *skb, struct xfrm_state *x, um->old_sport = x->encap->encap_sport; um->reqid = x->props.reqid; - return nlmsg_end(skb, nlh); + nlmsg_end(skb, nlh); + return 0; } static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, -- cgit v1.2.3 From 9889eaeb7c999cae64006bb98c47f40f412ec875 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Tue, 20 Jan 2015 10:21:06 +0800 Subject: ACPI: pci: Do not clear pci_dev->irq in acpi_pci_irq_disable() Xen pciback driver assumes that pci_dev->irq won't change after calling pci_disable_device(). But commit cffe0a2b5a34c95a4dadc9ec7132690a5b0f6687 ("x86, irq: Keep balance of IOAPIC pin reference count") frees irq resources and resets pci_dev->irq to zero when pci_disable_device() is called. So this is a hotfix for 3.19 to avoid resetting pci_dev->irq, and another proper fix will be prepared for next merging window. Signed-off-by: Jiang Liu Tested-by: Sander Eikelenboom Cc: Tony Luck Cc: Konrad Rzeszutek Wilk Cc: David Vrabel Cc: Rafael J. Wysocki Cc: Len Brown Link: http://lkml.kernel.org/r/1421720467-7709-3-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- drivers/acpi/pci_irq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 5277a0ee5704..b1def411c0b8 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -512,7 +512,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev) dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin)); if (gsi >= 0) { acpi_unregister_gsi(gsi); - dev->irq = 0; dev->irq_managed = 0; } } -- cgit v1.2.3 From 3295d73002f4be341069a000aec4b8d7e5ea8d2c Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 9 Jan 2015 16:22:57 +0100 Subject: ACPI / video: Add disable_native_backlight quirk for Samsung 730U3E/740U3E The Samsung 730U3E/740U3E has integrated ATI Radeon graphics, and backlight control does not work properly when using the native interfaces. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1094948 Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 032db459370f..497d98620361 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -522,6 +522,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"), }, }, + { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ + .callback = video_disable_native_backlight, + .ident = "SAMSUNG 730U3E/740U3E", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), + DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), + }, + }, { /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ -- cgit v1.2.3 From 97d746578b1fc4ce461e6279220cab3605f02469 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Tue, 16 Dec 2014 18:12:30 +0200 Subject: ACPICA: take ACPI_MTX_INTERPRETER in acpi_unload_table_id() acpi_tb_delete_namespace_by_owner() expects ACPI_MTX_INTERPRETER to be taken. This fixes the following issue: ACPI Error: Mutex [0x0] is not acquired, cannot release (20141107/utmutex-322) Call Trace: [] dump_stack+0x4f/0x7b [] acpi_ut_release_mutex+0x47/0x67 [] acpi_tb_delete_namespace_by_owner+0x57/0x8d [] acpi_unload_table_id+0x3a/0x5e Signed-off-by: Octavian Purdila Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/tbxface.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index 6482b0ded652..9520ae19bb37 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -281,6 +281,11 @@ acpi_status acpi_unload_table_id(acpi_owner_id id) ACPI_FUNCTION_TRACE(acpi_unload_table_id); + status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + /* Find table in the global table list */ for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { if (id != acpi_gbl_root_table_list.tables[i].owner_id) { @@ -297,6 +302,8 @@ acpi_status acpi_unload_table_id(acpi_owner_id id) acpi_tb_set_table_loaded_flag(i, FALSE); break; } + + (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); return_ACPI_STATUS(status); } -- cgit v1.2.3 From 4483d59e29fea65ef428be92a866aed50e28c795 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Thu, 8 Jan 2015 09:57:25 +0200 Subject: ACPI / LPSS: check the result of ioremap() If it fails we have to skip the device. Signed-off-by: Heikki Krogerus Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_lpss.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 4f3febf8a589..d12f98abf836 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -340,6 +340,8 @@ static int acpi_lpss_create_device(struct acpi_device *adev, pdata->mmio_size = resource_size(&rentry->res); pdata->mmio_base = ioremap(rentry->res.start, pdata->mmio_size); + if (!pdata->mmio_base) + goto err_out; break; } -- cgit v1.2.3 From 0c78808f51d11564a29728091e87b80d6e54d499 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:22 +0800 Subject: ACPI / EC: Cleanup transaction wakeup code This patch moves transaction wakeup code into advance_transaction(). No functional changes. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 1b5853f384e2..3e19123bb183 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -200,7 +200,7 @@ static int ec_transaction_completed(struct acpi_ec *ec) return ret; } -static bool advance_transaction(struct acpi_ec *ec) +static void advance_transaction(struct acpi_ec *ec) { struct transaction *t; u8 status; @@ -235,7 +235,7 @@ static bool advance_transaction(struct acpi_ec *ec) t->flags |= ACPI_EC_COMMAND_COMPLETE; wakeup = true; } - return wakeup; + goto out; } else { if (EC_FLAGS_QUERY_HANDSHAKE && !(status & ACPI_EC_FLAG_SCI) && @@ -251,7 +251,7 @@ static bool advance_transaction(struct acpi_ec *ec) t->flags |= ACPI_EC_COMMAND_POLL; } else goto err; - return wakeup; + goto out; } err: /* @@ -262,14 +262,16 @@ err: if (in_interrupt() && t) ++t->irq_count; } - return wakeup; +out: + if (wakeup && in_interrupt()) + wake_up(&ec->wait); } static void start_transaction(struct acpi_ec *ec) { ec->curr->irq_count = ec->curr->wi = ec->curr->ri = 0; ec->curr->flags = 0; - (void)advance_transaction(ec); + advance_transaction(ec); } static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); @@ -304,7 +306,7 @@ static int ec_poll(struct acpi_ec *ec) return 0; } spin_lock_irqsave(&ec->lock, flags); - (void)advance_transaction(ec); + advance_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); } while (time_before(jiffies, delay)); pr_debug("controller reset, restart transaction\n"); @@ -688,8 +690,7 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, struct acpi_ec *ec = data; spin_lock_irqsave(&ec->lock, flags); - if (advance_transaction(ec)) - wake_up(&ec->wait); + advance_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); ec_check_sci(ec, acpi_ec_read_status(ec)); return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; -- cgit v1.2.3 From 01305d4139cd345aa9f64cecfd7fc7b237e1444e Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:28 +0800 Subject: ACPI / EC: Add reference counting for query handlers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds reference counting for query handlers in order to eliminate kmalloc()/kfree() usage. Signed-off-by: Lv Zheng Tested-by: Steffen Weber Tested-by: Ortwin Glück Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 43 +++++++++++++++++++++++++++++++++---------- 1 file changed, 33 insertions(+), 10 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 3e19123bb183..87b9911c9039 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -105,6 +105,7 @@ struct acpi_ec_query_handler { acpi_handle handle; void *data; u8 query_bit; + struct kref kref; }; struct transaction { @@ -580,6 +581,27 @@ static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data) /* -------------------------------------------------------------------------- Event Management -------------------------------------------------------------------------- */ +static struct acpi_ec_query_handler * +acpi_ec_get_query_handler(struct acpi_ec_query_handler *handler) +{ + if (handler) + kref_get(&handler->kref); + return handler; +} + +static void acpi_ec_query_handler_release(struct kref *kref) +{ + struct acpi_ec_query_handler *handler = + container_of(kref, struct acpi_ec_query_handler, kref); + + kfree(handler); +} + +static void acpi_ec_put_query_handler(struct acpi_ec_query_handler *handler) +{ + kref_put(&handler->kref, acpi_ec_query_handler_release); +} + int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle, acpi_ec_query_func func, void *data) @@ -595,6 +617,7 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, handler->func = func; handler->data = data; mutex_lock(&ec->mutex); + kref_init(&handler->kref); list_add(&handler->node, &ec->list); mutex_unlock(&ec->mutex); return 0; @@ -604,15 +627,18 @@ EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler); void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) { struct acpi_ec_query_handler *handler, *tmp; + LIST_HEAD(free_list); mutex_lock(&ec->mutex); list_for_each_entry_safe(handler, tmp, &ec->list, node) { if (query_bit == handler->query_bit) { - list_del(&handler->node); - kfree(handler); + list_del_init(&handler->node); + list_add(&handler->node, &free_list); } } mutex_unlock(&ec->mutex); + list_for_each_entry(handler, &free_list, node) + acpi_ec_put_query_handler(handler); } EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler); @@ -628,14 +654,14 @@ static void acpi_ec_run(void *cxt) else if (handler->handle) acpi_evaluate_object(handler->handle, NULL, NULL, NULL); pr_debug("##### Query(0x%02x) stopped #####\n", handler->query_bit); - kfree(handler); + acpi_ec_put_query_handler(handler); } static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int status; - struct acpi_ec_query_handler *handler, *copy; + struct acpi_ec_query_handler *handler; status = acpi_ec_query_unlocked(ec, &value); if (data) @@ -646,15 +672,12 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { /* have custom handler for this bit */ - copy = kmalloc(sizeof(*handler), GFP_KERNEL); - if (!copy) - return -ENOMEM; - memcpy(copy, handler, sizeof(*copy)); + handler = acpi_ec_get_query_handler(handler); pr_debug("##### Query(0x%02x) scheduled #####\n", handler->query_bit); - return acpi_os_execute((copy->func) ? + return acpi_os_execute((handler->func) ? OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER, - acpi_ec_run, copy); + acpi_ec_run, handler); } } return 0; -- cgit v1.2.3 From c2cf5769fae1ce208ea00fa85298d1d19969300a Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:33 +0800 Subject: ACPI / EC: Fix returning values in acpi_ec_sync_query() The returning value of acpi_os_execute() is erroneously handled as errno. This patch corrects it by returning EBUSY to indicate the work queue item creation failure. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 87b9911c9039..a94ee9f7defd 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -660,14 +660,15 @@ static void acpi_ec_run(void *cxt) static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; - int status; + int result; + acpi_status status; struct acpi_ec_query_handler *handler; - status = acpi_ec_query_unlocked(ec, &value); + result = acpi_ec_query_unlocked(ec, &value); if (data) *data = value; - if (status) - return status; + if (result) + return result; list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { @@ -675,12 +676,15 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) handler = acpi_ec_get_query_handler(handler); pr_debug("##### Query(0x%02x) scheduled #####\n", handler->query_bit); - return acpi_os_execute((handler->func) ? + status = acpi_os_execute((handler->func) ? OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER, acpi_ec_run, handler); + if (ACPI_FAILURE(status)) + result = -EBUSY; + break; } } - return 0; + return result; } static void acpi_ec_gpe_query(void *ec_cxt) -- cgit v1.2.3 From f3e14329517ee190d34455d729430ef9d0473675 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:41 +0800 Subject: ACPI / EC: Fix a code path that global lock is not held Currently QR_EC is queued up on CPU 0 to be safe with SMM because there is no global lock held for acpi_ec_gpe_query(). As we are about to move QR_EC to a non CPU 0 bound work queue to avoid invoking kmalloc() in advance_transaction(), we have to acquire global lock for the new QR_EC work item to avoid regressions. Known issue: 1. Global lock for acpi_ec_clear(). This is an existing issue that acpi_ec_clear() which invokes acpi_ec_sync_query() also suffers from the same issue. But this patch's target is only the code to invoke acpi_ec_sync_query() in a CPU 0 bound work queue item, and the acpi_ec_clear() can be automatically fixed by further patch that merges the redundant code, so it is left unchanged. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a94ee9f7defd..3c97122eacd7 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -690,11 +690,21 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) static void acpi_ec_gpe_query(void *ec_cxt) { struct acpi_ec *ec = ec_cxt; + acpi_status status; + u32 glk; if (!ec) return; mutex_lock(&ec->mutex); + if (ec->global_lock) { + status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); + if (ACPI_FAILURE(status)) + goto unlock; + } acpi_ec_sync_query(ec, NULL); + if (ec->global_lock) + acpi_release_global_lock(glk); +unlock: mutex_unlock(&ec->mutex); } -- cgit v1.2.3 From 74443bbed72ab22ee005ecb6ecdc657a8018e1db Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:47 +0800 Subject: ACPI / EC: Fix issues related to the SCI_EVT handling This patch fixes 2 issues related to the draining behavior. But it doesn't implement the draining support, it only cleans up code so that further draining support is possible. The draining behavior is expected by some platforms (for example, Samsung) where SCI_EVT is set only once for a set of events and might be cleared for the very first QR_EC command issued after SCI_EVT is set. EC firmware on such platforms will return 0x00 to indicate "no outstanding event". Thus after seeing an SCI_EVT indication, EC driver need to fetch events until 0x00 returned (see acpi_ec_clear()). Issue 1 - acpi_ec_submit_query(): It's reported on Samsung laptops that SCI_EVT isn't checked when the transactions are advanced in ec_poll(), which leads to SCI_EVT triggering source lost: If no EC GPE IRQs are arrived after that, EC driver cannot detect this event and handle it. See comment 244/247 for kernel bugzilla 44161. This patch fixes this issue by moving SCI_EVT checks into advance_transaction(). So that SCI_EVT is checked each time we are going to handle the EC firmware indications. And this check will happen for both IRQ context and task context. Since after doing that, SCI_EVT is also checked after completing a transaction, ec_check_sci() and ec_check_sci_sync() can be removed. Issue 2 - acpi_ec_complete_query(): We expect to clear EC_FLAGS_QUERY_PENDING to allow queuing another draining QR_EC after writing a QR_EC command and before reading the event. After reading the event, SCI_EVT might be cleared by the firmware, thus it may not be possible to queue such a draining QR_EC at that time. But putting the EC_FLAGS_QUERY_PENDING clearing code after start_transaction() is wrong as there are chances that after start_transaction(), QR_EC can fail to be sent. If this happens, EC_FLAG_QUERY_PENDING will be cleared earlier. As a consequence, the draining QR_EC will also be queued earlier than expected. This patch also moves this code into advance_transaction() where QR_EC is just sent (ACPI_EC_COMMAND_POLL flagged) to fix this issue. Notes: 1. After introducing the 2 SCI_EVT related handlings into advance_transaction(), a next QR_EC can be queued right after writing the current QR_EC command and before reading the event. But this still hasn't implemented the draining behavior as the draining support requires: If a previous returned event value isn't 0x00, a draining QR_EC need to be issued even when SCI_EVT isn't set. 2. In this patch, acpi_os_execute() is also converted into a seperate work item to avoid invoking kmalloc() in the atomic context. We can do this because of the previous global lock fix. 3. Originally, EC_FLAGS_EVENT_PENDING is also used to avoid queuing up multiple work items (created by acpi_os_execute()), this can be covered by only using a single work item. But this patch still keeps this flag as there are different usages in the driver initialization steps relying on this flag. Link: https://bugzilla.kernel.org/show_bug.cgi?id=44161 Reported-by: Kieran Clancy Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 59 +++++++++++++++++++++---------------------------- drivers/acpi/internal.h | 1 + 2 files changed, 26 insertions(+), 34 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 3c97122eacd7..89e89b21dd54 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -120,6 +120,8 @@ struct transaction { u8 flags; }; +static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); + struct acpi_ec *boot_ec, *first_ec; EXPORT_SYMBOL(first_ec); @@ -189,6 +191,22 @@ static const char *acpi_ec_cmd_string(u8 cmd) #define acpi_ec_cmd_string(cmd) "UNDEF" #endif +static void acpi_ec_submit_query(struct acpi_ec *ec) +{ + if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { + pr_debug("***** Event started *****\n"); + schedule_work(&ec->work); + } +} + +static void acpi_ec_complete_query(struct acpi_ec *ec) +{ + if (ec->curr->command == ACPI_EC_COMMAND_QUERY) { + clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); + pr_debug("***** Event stopped *****\n"); + } +} + static int ec_transaction_completed(struct acpi_ec *ec) { unsigned long flags; @@ -242,6 +260,7 @@ static void advance_transaction(struct acpi_ec *ec) !(status & ACPI_EC_FLAG_SCI) && (t->command == ACPI_EC_COMMAND_QUERY)) { t->flags |= ACPI_EC_COMMAND_POLL; + acpi_ec_complete_query(ec); t->rdata[t->ri++] = 0x00; t->flags |= ACPI_EC_COMMAND_COMPLETE; pr_debug("***** Command(%s) software completion *****\n", @@ -250,6 +269,7 @@ static void advance_transaction(struct acpi_ec *ec) } else if ((status & ACPI_EC_FLAG_IBF) == 0) { acpi_ec_write_cmd(ec, t->command); t->flags |= ACPI_EC_COMMAND_POLL; + acpi_ec_complete_query(ec); } else goto err; goto out; @@ -264,6 +284,8 @@ err: ++t->irq_count; } out: + if (status & ACPI_EC_FLAG_SCI) + acpi_ec_submit_query(ec); if (wakeup && in_interrupt()) wake_up(&ec->wait); } @@ -275,17 +297,6 @@ static void start_transaction(struct acpi_ec *ec) advance_transaction(ec); } -static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); - -static int ec_check_sci_sync(struct acpi_ec *ec, u8 state) -{ - if (state & ACPI_EC_FLAG_SCI) { - if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) - return acpi_ec_sync_query(ec, NULL); - } - return 0; -} - static int ec_poll(struct acpi_ec *ec) { unsigned long flags; @@ -333,10 +344,6 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, pr_debug("***** Command(%s) started *****\n", acpi_ec_cmd_string(t->command)); start_transaction(ec); - if (ec->curr->command == ACPI_EC_COMMAND_QUERY) { - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - pr_debug("***** Event stopped *****\n"); - } spin_unlock_irqrestore(&ec->lock, tmp); ret = ec_poll(ec); spin_lock_irqsave(&ec->lock, tmp); @@ -376,8 +383,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) status = acpi_ec_transaction_unlocked(ec, t); - /* check if we received SCI during transaction */ - ec_check_sci_sync(ec, acpi_ec_read_status(ec)); if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { msleep(1); /* It is safe to enable the GPE outside of the transaction. */ @@ -687,14 +692,12 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) return result; } -static void acpi_ec_gpe_query(void *ec_cxt) +static void acpi_ec_gpe_poller(struct work_struct *work) { - struct acpi_ec *ec = ec_cxt; acpi_status status; u32 glk; + struct acpi_ec *ec = container_of(work, struct acpi_ec, work); - if (!ec) - return; mutex_lock(&ec->mutex); if (ec->global_lock) { status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); @@ -708,18 +711,6 @@ unlock: mutex_unlock(&ec->mutex); } -static int ec_check_sci(struct acpi_ec *ec, u8 state) -{ - if (state & ACPI_EC_FLAG_SCI) { - if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { - pr_debug("***** Event started *****\n"); - return acpi_os_execute(OSL_NOTIFY_HANDLER, - acpi_ec_gpe_query, ec); - } - } - return 0; -} - static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, u32 gpe_number, void *data) { @@ -729,7 +720,6 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, spin_lock_irqsave(&ec->lock, flags); advance_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); - ec_check_sci(ec, acpi_ec_read_status(ec)); return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; } @@ -793,6 +783,7 @@ static struct acpi_ec *make_acpi_ec(void) init_waitqueue_head(&ec->wait); INIT_LIST_HEAD(&ec->list); spin_lock_init(&ec->lock); + INIT_WORK(&ec->work, acpi_ec_gpe_poller); return ec; } diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 163e82f536fa..dc420787ffcd 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -127,6 +127,7 @@ struct acpi_ec { struct list_head list; struct transaction *curr; spinlock_t lock; + struct work_struct work; }; extern struct acpi_ec *first_ec; -- cgit v1.2.3 From 550b3aac5a72c4209f1ad3bc0ade663d5cb36f7f Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:53 +0800 Subject: ACPI / EC: Cleanup QR_EC related code The QR_EC related code pieces have redundants, this patch merges them into acpi_ec_query() which invokes acpi_ec_transaction() where EC mutex and the global lock are already held. After doing so, query handler traversal still need to be locked by EC mutex after invoking acpi_ec_transaction(). Note that EC event handling is sequential. We fetch one event from firmware event queue and process it until 0x00 or error returned. So we don't need to hold mutex for whole acpi_ec_clear() process to determine whether we should continue to drain. And for the same reason, we don't need to hold mutex for the whole procedure from the QR_EC transaction to the query handler traversal. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 70 ++++++++++++++++--------------------------------------- 1 file changed, 20 insertions(+), 50 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 89e89b21dd54..c385606bbceb 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -120,7 +120,7 @@ struct transaction { u8 flags; }; -static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); +static int acpi_ec_query(struct acpi_ec *ec, u8 *data); struct acpi_ec *boot_ec, *first_ec; EXPORT_SYMBOL(first_ec); @@ -508,7 +508,7 @@ static void acpi_ec_clear(struct acpi_ec *ec) u8 value = 0; for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) { - status = acpi_ec_sync_query(ec, &value); + status = acpi_ec_query(ec, &value); if (status || !value) break; } @@ -539,14 +539,11 @@ void acpi_ec_unblock_transactions(void) if (!ec) return; - mutex_lock(&ec->mutex); /* Allow transactions to be carried out again */ clear_bit(EC_FLAGS_BLOCKED, &ec->flags); if (EC_FLAGS_CLEAR_ON_RESUME) acpi_ec_clear(ec); - - mutex_unlock(&ec->mutex); } void acpi_ec_unblock_transactions_early(void) @@ -559,30 +556,6 @@ void acpi_ec_unblock_transactions_early(void) clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags); } -static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data) -{ - int result; - u8 d; - struct transaction t = {.command = ACPI_EC_COMMAND_QUERY, - .wdata = NULL, .rdata = &d, - .wlen = 0, .rlen = 1}; - - if (!ec || !data) - return -EINVAL; - /* - * Query the EC to find out which _Qxx method we need to evaluate. - * Note that successful completion of the query causes the ACPI_EC_SCI - * bit to be cleared (and thus clearing the interrupt source). - */ - result = acpi_ec_transaction_unlocked(ec, &t); - if (result) - return result; - if (!d) - return -ENODATA; - *data = d; - return 0; -} - /* -------------------------------------------------------------------------- Event Management -------------------------------------------------------------------------- */ @@ -662,19 +635,30 @@ static void acpi_ec_run(void *cxt) acpi_ec_put_query_handler(handler); } -static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) +static int acpi_ec_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int result; acpi_status status; struct acpi_ec_query_handler *handler; + struct transaction t = {.command = ACPI_EC_COMMAND_QUERY, + .wdata = NULL, .rdata = &value, + .wlen = 0, .rlen = 1}; - result = acpi_ec_query_unlocked(ec, &value); - if (data) - *data = value; + /* + * Query the EC to find out which _Qxx method we need to evaluate. + * Note that successful completion of the query causes the ACPI_EC_SCI + * bit to be cleared (and thus clearing the interrupt source). + */ + result = acpi_ec_transaction(ec, &t); if (result) return result; + if (data) + *data = value; + if (!value) + return -ENODATA; + mutex_lock(&ec->mutex); list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { /* have custom handler for this bit */ @@ -689,26 +673,15 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) break; } } + mutex_unlock(&ec->mutex); return result; } static void acpi_ec_gpe_poller(struct work_struct *work) { - acpi_status status; - u32 glk; struct acpi_ec *ec = container_of(work, struct acpi_ec, work); - mutex_lock(&ec->mutex); - if (ec->global_lock) { - status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); - if (ACPI_FAILURE(status)) - goto unlock; - } - acpi_ec_sync_query(ec, NULL); - if (ec->global_lock) - acpi_release_global_lock(glk); -unlock: - mutex_unlock(&ec->mutex); + acpi_ec_query(ec, NULL); } static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, @@ -932,11 +905,8 @@ static int acpi_ec_add(struct acpi_device *device) clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); /* Clear stale _Q events if hardware might require that */ - if (EC_FLAGS_CLEAR_ON_RESUME) { - mutex_lock(&ec->mutex); + if (EC_FLAGS_CLEAR_ON_RESUME) acpi_ec_clear(ec); - mutex_unlock(&ec->mutex); - } return ret; } -- cgit v1.2.3 From b893e80e314749bce4597a262b7d04e929016e51 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Fri, 23 Jan 2015 09:42:39 +0200 Subject: ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C Intel Lynxpoint I2C does not have clock parameter register like SPI and UART do have. Therefore remove LPSS_CLK_GATE flag from the Lynxpoint I2C device description in order to not needlessly toggle clock enable bit in non-existing register. Signed-off-by: Jarkko Nikula Acked-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_lpss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index d12f98abf836..794cf3e13619 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -129,7 +129,7 @@ static struct lpss_device_desc lpt_dev_desc = { }; static struct lpss_device_desc lpt_i2c_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR, + .flags = LPSS_CLK | LPSS_LTR, .prv_offset = 0x800, }; -- cgit v1.2.3 From 8b691c9cf297bc32a021b7fef0dd0e32f130e542 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 23 Jan 2015 08:12:06 +0000 Subject: ACPI / sleep: mark acpi_sleep_dmi_check() __init This makes a difference if the compiler decides not to inline the function, as then the function's reference to acpisleep_dmi_table[] yields a section mismatch warning. Signed-off-by: Jan Beulich Signed-off-by: Rafael J. Wysocki --- drivers/acpi/sleep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 8aa9254a387f..7f251dd1a687 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -321,7 +321,7 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = { {}, }; -static void acpi_sleep_dmi_check(void) +static void __init acpi_sleep_dmi_check(void) { int year; -- cgit v1.2.3 From e044d8f92f79db167bb7f9dfd0f317e3238d82d1 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Mon, 26 Jan 2015 16:58:48 +0800 Subject: ACPI: Introduce acpi_unload_parent_table() usages in Linux kernel ACPICA has implemented acpi_unload_parent_table() which can exactly replace the acpi_get_id()/acpi_unload_table_id() implemented in Linux kernel. The acpi_unload_parent_table() has been unit tested in ACPICA simulation environment. This patch can also help to reduce the source code differences between Linux and ACPICA. Signed-off-by: Lv Zheng Acked-by: Bjorn Helgaas Tested-by: Octavian Purdila Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/nsxfobj.c | 44 ------------------------------------- drivers/acpi/acpica/tbxface.c | 46 --------------------------------------- drivers/pci/hotplug/sgi_hotplug.c | 13 ++++++----- include/acpi/acpixf.h | 6 ----- 4 files changed, 7 insertions(+), 102 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index dae9401be7a2..51a83298c18d 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c @@ -51,50 +51,6 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsxfobj") -/******************************************************************************* - * - * FUNCTION: acpi_get_id - * - * PARAMETERS: Handle - Handle of object whose id is desired - * ret_id - Where the id will be placed - * - * RETURN: Status - * - * DESCRIPTION: This routine returns the owner id associated with a handle - * - ******************************************************************************/ -acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter Validation */ - - if (!ret_id) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_validate_handle(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_BAD_PARAMETER); - } - - *ret_id = node->owner_id; - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_id) - /******************************************************************************* * * FUNCTION: acpi_get_type diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index 9520ae19bb37..0f9dd80b1cdd 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -263,52 +263,6 @@ acpi_get_table_header(char *signature, ACPI_EXPORT_SYMBOL(acpi_get_table_header) -/******************************************************************************* - * - * FUNCTION: acpi_unload_table_id - * - * PARAMETERS: id - Owner ID of the table to be removed. - * - * RETURN: Status - * - * DESCRIPTION: This routine is used to force the unload of a table (by id) - * - ******************************************************************************/ -acpi_status acpi_unload_table_id(acpi_owner_id id) -{ - int i; - acpi_status status = AE_NOT_EXIST; - - ACPI_FUNCTION_TRACE(acpi_unload_table_id); - - status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Find table in the global table list */ - for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { - if (id != acpi_gbl_root_table_list.tables[i].owner_id) { - continue; - } - /* - * Delete all namespace objects owned by this table. Note that these - * objects can appear anywhere in the namespace by virtue of the AML - * "Scope" operator. Thus, we need to track ownership by an ID, not - * simply a position within the hierarchy - */ - acpi_tb_delete_namespace_by_owner(i); - status = acpi_tb_release_owner_id(i); - acpi_tb_set_table_loaded_flag(i, FALSE); - break; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_unload_table_id) - /******************************************************************************* * * FUNCTION: acpi_get_table_with_size diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index bada20999870..c32fb786d48e 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -475,7 +475,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) struct slot *slot = bss_hotplug_slot->private; struct pci_dev *dev, *temp; int rc; - acpi_owner_id ssdt_id = 0; + acpi_handle ssdt_hdl = NULL; /* Acquire update access to the bus */ mutex_lock(&sn_hotplug_mutex); @@ -522,7 +522,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) if (ACPI_SUCCESS(ret) && (adr>>16) == (slot->device_num + 1)) { /* retain the owner id */ - acpi_get_id(chandle, &ssdt_id); + ssdt_hdl = chandle; ret = acpi_bus_get_device(chandle, &device); @@ -547,12 +547,13 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) pci_unlock_rescan_remove(); /* Remove the SSDT for the slot from the ACPI namespace */ - if (SN_ACPI_BASE_SUPPORT() && ssdt_id) { + if (SN_ACPI_BASE_SUPPORT() && ssdt_hdl) { acpi_status ret; - ret = acpi_unload_table_id(ssdt_id); + ret = acpi_unload_parent_table(ssdt_hdl); if (ACPI_FAILURE(ret)) { - printk(KERN_ERR "%s: acpi_unload_table_id failed (0x%x) for id %d\n", - __func__, ret, ssdt_id); + acpi_handle_err(ssdt_hdl, + "%s: acpi_unload_parent_table failed (0x%x)\n", + __func__, ret); /* try to continue on */ } } diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 5ba78464c1b1..5dd21bc18ce6 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -890,12 +890,6 @@ ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1) */ ACPI_GLOBAL(u8, acpi_gbl_permanent_mmap); -ACPI_EXTERNAL_RETURN_STATUS(acpi_status - acpi_get_id(acpi_handle object, - acpi_owner_id * out_type)) - -ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_unload_table_id(acpi_owner_id id)) - ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_table_with_size(acpi_string signature, u32 instance, -- cgit v1.2.3 From a45de93eb10ae44446aec2c73d722562ab46092a Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Mon, 26 Jan 2015 16:58:56 +0800 Subject: ACPICA: Resources: Provide common part for struct acpi_resource_address structures. struct acpi_resource_address and struct acpi_resource_extended_address64 share substracts just at different offsets. To unify the parsing functions, OSPMs like Linux need a new ACPI_ADDRESS64_ATTRIBUTE as their substructs, so they can extract the shared data. This patch also synchronizes the structure changes to the Linux kernel. The usages are searched by matching the following keywords: 1. acpi_resource_address 2. acpi_resource_extended_address 3. ACPI_RESOURCE_TYPE_ADDRESS 4. ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS And we found and fixed the usages in the following files: arch/ia64/kernel/acpi-ext.c arch/ia64/pci/pci.c arch/x86/pci/acpi.c arch/x86/pci/mmconfig-shared.c drivers/xen/xen-acpi-memhotplug.c drivers/acpi/acpi_memhotplug.c drivers/acpi/pci_root.c drivers/acpi/resource.c drivers/char/hpet.c drivers/pnp/pnpacpi/rsparser.c drivers/hv/vmbus_drv.c Build tests are passed with defconfig/allnoconfig/allyesconfig and defconfig+CONFIG_ACPI=n. Original-by: Thomas Gleixner Original-by: Jiang Liu Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- arch/ia64/kernel/acpi-ext.c | 6 ++-- arch/ia64/pci/pci.c | 14 +++++----- arch/x86/pci/acpi.c | 26 ++++++++--------- arch/x86/pci/mmconfig-shared.c | 6 ++-- drivers/acpi/acpi_memhotplug.c | 8 +++--- drivers/acpi/acpica/rsaddr.c | 9 +++--- drivers/acpi/acpica/rsdumpinfo.c | 59 ++++++++++++++++++++------------------- drivers/acpi/acpica/rsxface.c | 10 +++---- drivers/acpi/pci_root.c | 6 ++-- drivers/acpi/resource.c | 24 ++++++++-------- drivers/char/hpet.c | 4 +-- drivers/hv/vmbus_drv.c | 4 +-- drivers/pnp/pnpacpi/rsparser.c | 16 +++++------ drivers/xen/xen-acpi-memhotplug.c | 8 +++--- include/acpi/acrestyp.h | 40 +++++++++++++++----------- 15 files changed, 125 insertions(+), 115 deletions(-) (limited to 'drivers/acpi') diff --git a/arch/ia64/kernel/acpi-ext.c b/arch/ia64/kernel/acpi-ext.c index 8b9318d311a0..bd09bf74f187 100644 --- a/arch/ia64/kernel/acpi-ext.c +++ b/arch/ia64/kernel/acpi-ext.c @@ -69,10 +69,10 @@ static acpi_status find_csr_space(struct acpi_resource *resource, void *data) status = acpi_resource_to_address64(resource, &addr); if (ACPI_SUCCESS(status) && addr.resource_type == ACPI_MEMORY_RANGE && - addr.address_length && + addr.address.address_length && addr.producer_consumer == ACPI_CONSUMER) { - space->base = addr.minimum; - space->length = addr.address_length; + space->base = addr.address.minimum; + space->length = addr.address.address_length; return AE_CTRL_TERMINATE; } return AE_OK; /* keep looking */ diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 291a582777cf..46920aaa7e9e 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -188,12 +188,12 @@ static u64 add_io_space(struct pci_root_info *info, name = (char *)(iospace + 1); - min = addr->minimum; - max = min + addr->address_length - 1; + min = addr->address.minimum; + max = min + addr->address.address_length - 1; if (addr->info.io.translation_type == ACPI_SPARSE_TRANSLATION) sparse = 1; - space_nr = new_space(addr->translation_offset, sparse); + space_nr = new_space(addr->address.translation_offset, sparse); if (space_nr == ~0) goto free_resource; @@ -247,7 +247,7 @@ static acpi_status resource_to_window(struct acpi_resource *resource, if (ACPI_SUCCESS(status) && (addr->resource_type == ACPI_MEMORY_RANGE || addr->resource_type == ACPI_IO_RANGE) && - addr->address_length && + addr->address.address_length && addr->producer_consumer == ACPI_PRODUCER) return AE_OK; @@ -284,7 +284,7 @@ static acpi_status add_window(struct acpi_resource *res, void *data) if (addr.resource_type == ACPI_MEMORY_RANGE) { flags = IORESOURCE_MEM; root = &iomem_resource; - offset = addr.translation_offset; + offset = addr.address.translation_offset; } else if (addr.resource_type == ACPI_IO_RANGE) { flags = IORESOURCE_IO; root = &ioport_resource; @@ -297,8 +297,8 @@ static acpi_status add_window(struct acpi_resource *res, void *data) resource = &info->res[info->res_num]; resource->name = info->name; resource->flags = flags; - resource->start = addr.minimum + offset; - resource->end = resource->start + addr.address_length - 1; + resource->start = addr.address.minimum + offset; + resource->end = resource->start + addr.address.address_length - 1; info->res_offset[info->res_num] = offset; if (insert_resource(root, resource)) { diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index cfd1b132b8e3..bb98afd0591e 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -231,23 +231,23 @@ static acpi_status resource_to_addr(struct acpi_resource *resource, case ACPI_RESOURCE_TYPE_MEMORY24: memory24 = &resource->data.memory24; addr->resource_type = ACPI_MEMORY_RANGE; - addr->minimum = memory24->minimum; - addr->address_length = memory24->address_length; - addr->maximum = addr->minimum + addr->address_length - 1; + addr->address.minimum = memory24->minimum; + addr->address.address_length = memory24->address_length; + addr->address.maximum = addr->address.minimum + addr->address.address_length - 1; return AE_OK; case ACPI_RESOURCE_TYPE_MEMORY32: memory32 = &resource->data.memory32; addr->resource_type = ACPI_MEMORY_RANGE; - addr->minimum = memory32->minimum; - addr->address_length = memory32->address_length; - addr->maximum = addr->minimum + addr->address_length - 1; + addr->address.minimum = memory32->minimum; + addr->address.address_length = memory32->address_length; + addr->address.maximum = addr->address.minimum + addr->address.address_length - 1; return AE_OK; case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: fixed_memory32 = &resource->data.fixed_memory32; addr->resource_type = ACPI_MEMORY_RANGE; - addr->minimum = fixed_memory32->address; - addr->address_length = fixed_memory32->address_length; - addr->maximum = addr->minimum + addr->address_length - 1; + addr->address.minimum = fixed_memory32->address; + addr->address.address_length = fixed_memory32->address_length; + addr->address.maximum = addr->address.minimum + addr->address.address_length - 1; return AE_OK; case ACPI_RESOURCE_TYPE_ADDRESS16: case ACPI_RESOURCE_TYPE_ADDRESS32: @@ -256,7 +256,7 @@ static acpi_status resource_to_addr(struct acpi_resource *resource, if (ACPI_SUCCESS(status) && (addr->resource_type == ACPI_MEMORY_RANGE || addr->resource_type == ACPI_IO_RANGE) && - addr->address_length > 0) { + addr->address.address_length > 0) { return AE_OK; } break; @@ -298,8 +298,8 @@ static acpi_status setup_resource(struct acpi_resource *acpi_res, void *data) } else return AE_OK; - start = addr.minimum + addr.translation_offset; - orig_end = end = addr.maximum + addr.translation_offset; + start = addr.address.minimum + addr.address.translation_offset; + orig_end = end = addr.address.maximum + addr.address.translation_offset; /* Exclude non-addressable range or non-addressable portion of range */ end = min(end, (u64)iomem_resource.end); @@ -320,7 +320,7 @@ static acpi_status setup_resource(struct acpi_resource *acpi_res, void *data) res->flags = flags; res->start = start; res->end = end; - info->res_offset[info->res_num] = addr.translation_offset; + info->res_offset[info->res_num] = addr.address.translation_offset; info->res_num++; if (!pci_use_crs) diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 326198a4434e..5a8dceac3094 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -397,12 +397,12 @@ static acpi_status check_mcfg_resource(struct acpi_resource *res, void *data) status = acpi_resource_to_address64(res, &address); if (ACPI_FAILURE(status) || - (address.address_length <= 0) || + (address.address.address_length <= 0) || (address.resource_type != ACPI_MEMORY_RANGE)) return AE_OK; - if ((mcfg_res->start >= address.minimum) && - (mcfg_res->end < (address.minimum + address.address_length))) { + if ((mcfg_res->start >= address.address.minimum) && + (mcfg_res->end < (address.address.minimum + address.address.address_length))) { mcfg_res->flags = 1; return AE_CTRL_TERMINATE; } diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 23e2319ead41..ee28f4d15625 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -101,8 +101,8 @@ acpi_memory_get_resource(struct acpi_resource *resource, void *context) /* Can we combine the resource range information? */ if ((info->caching == address64.info.mem.caching) && (info->write_protect == address64.info.mem.write_protect) && - (info->start_addr + info->length == address64.minimum)) { - info->length += address64.address_length; + (info->start_addr + info->length == address64.address.minimum)) { + info->length += address64.address.address_length; return AE_OK; } } @@ -114,8 +114,8 @@ acpi_memory_get_resource(struct acpi_resource *resource, void *context) INIT_LIST_HEAD(&new->list); new->caching = address64.info.mem.caching; new->write_protect = address64.info.mem.write_protect; - new->start_addr = address64.minimum; - new->length = address64.address_length; + new->start_addr = address64.address.minimum; + new->length = address64.address.address_length; list_add_tail(&new->list, &mem_device->res_list); return AE_OK; diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c index 916fd095ff34..94a3a057042c 100644 --- a/drivers/acpi/acpica/rsaddr.c +++ b/drivers/acpi/acpica/rsaddr.c @@ -74,7 +74,7 @@ struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { * Address Translation Offset * Address Length */ - {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.address.granularity), AML_OFFSET(address16.granularity), 5}, @@ -112,7 +112,7 @@ struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { * Address Translation Offset * Address Length */ - {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.address.granularity), AML_OFFSET(address32.granularity), 5}, @@ -150,7 +150,7 @@ struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { * Address Translation Offset * Address Length */ - {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.address.granularity), AML_OFFSET(address64.granularity), 5}, @@ -194,7 +194,8 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { * Address Length * Type-Specific Attribute */ - {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), + {ACPI_RSC_MOVE64, + ACPI_RS_OFFSET(data.ext_address64.address.granularity), AML_OFFSET(ext_address64.granularity), 6} }; diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c index 2f9332d5c973..6ba7ad5faa9c 100644 --- a/drivers/acpi/acpica/rsdumpinfo.c +++ b/drivers/acpi/acpica/rsdumpinfo.c @@ -183,15 +183,15 @@ struct acpi_rsdump_info acpi_rs_dump_address16[8] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16), "16-Bit WORD Address Space", NULL}, {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset), + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address.granularity), + "Granularity", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address.minimum), + "Address Minimum", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address.maximum), + "Address Maximum", NULL}, + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address.translation_offset), "Translation Offset", NULL}, - {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length), + {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address.address_length), "Address Length", NULL}, {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL} }; @@ -200,15 +200,15 @@ struct acpi_rsdump_info acpi_rs_dump_address32[8] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32), "32-Bit DWORD Address Space", NULL}, {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset), + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address.granularity), + "Granularity", NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address.minimum), + "Address Minimum", NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address.maximum), + "Address Maximum", NULL}, + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address.translation_offset), "Translation Offset", NULL}, - {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length), + {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address.address_length), "Address Length", NULL}, {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL} }; @@ -217,15 +217,15 @@ struct acpi_rsdump_info acpi_rs_dump_address64[8] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64), "64-Bit QWORD Address Space", NULL}, {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum", - NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address.granularity), + "Granularity", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address.minimum), + "Address Minimum", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address.maximum), + "Address Maximum", NULL}, + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address.translation_offset), "Translation Offset", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address.address_length), "Address Length", NULL}, {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL} }; @@ -234,15 +234,16 @@ struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64), "64-Bit Extended Address Space", NULL}, {ACPI_RSD_ADDRESS, 0, NULL, NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address.granularity), "Granularity", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address.minimum), "Address Minimum", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address.maximum), "Address Maximum", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset), + {ACPI_RSD_UINT64, + ACPI_RSD_OFFSET(ext_address64.address.translation_offset), "Translation Offset", NULL}, - {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length), + {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address.address_length), "Address Length", NULL}, {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific), "Type-Specific Attribute", NULL} diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index 877ab9202133..295287891174 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -60,11 +60,11 @@ ACPI_MODULE_NAME("rsxface") ACPI_COPY_FIELD(out, in, min_address_fixed); \ ACPI_COPY_FIELD(out, in, max_address_fixed); \ ACPI_COPY_FIELD(out, in, info); \ - ACPI_COPY_FIELD(out, in, granularity); \ - ACPI_COPY_FIELD(out, in, minimum); \ - ACPI_COPY_FIELD(out, in, maximum); \ - ACPI_COPY_FIELD(out, in, translation_offset); \ - ACPI_COPY_FIELD(out, in, address_length); \ + ACPI_COPY_FIELD(out, in, address.granularity); \ + ACPI_COPY_FIELD(out, in, address.minimum); \ + ACPI_COPY_FIELD(out, in, address.maximum); \ + ACPI_COPY_FIELD(out, in, address.translation_offset); \ + ACPI_COPY_FIELD(out, in, address.address_length); \ ACPI_COPY_FIELD(out, in, resource_source); /* Local prototypes */ static acpi_status diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index c6bcb8c719d8..e53e0f659204 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -112,10 +112,10 @@ get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data) if (ACPI_FAILURE(status)) return AE_OK; - if ((address.address_length > 0) && + if ((address.address.address_length > 0) && (address.resource_type == ACPI_BUS_NUMBER_RANGE)) { - res->start = address.minimum; - res->end = address.minimum + address.address_length - 1; + res->start = address.address.minimum; + res->end = address.address.minimum + address.address.address_length - 1; } return AE_OK; diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 782a0d15c25f..d0a4d90c6bcc 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -202,22 +202,22 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, if (ACPI_FAILURE(status)) return false; - res->start = addr.minimum; - res->end = addr.maximum; + res->start = addr.address.minimum; + res->end = addr.address.maximum; window = addr.producer_consumer == ACPI_PRODUCER; switch(addr.resource_type) { case ACPI_MEMORY_RANGE: - len = addr.maximum - addr.minimum + 1; + len = addr.address.maximum - addr.address.minimum + 1; res->flags = acpi_dev_memresource_flags(len, addr.info.mem.write_protect, window); break; case ACPI_IO_RANGE: - io_decode = addr.granularity == 0xfff ? + io_decode = addr.address.granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; - res->flags = acpi_dev_ioresource_flags(addr.minimum, - addr.maximum, + res->flags = acpi_dev_ioresource_flags(addr.address.minimum, + addr.address.maximum, io_decode, window); break; case ACPI_BUS_NUMBER_RANGE: @@ -253,22 +253,22 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, ext_addr = &ares->data.ext_address64; - res->start = ext_addr->minimum; - res->end = ext_addr->maximum; + res->start = ext_addr->address.minimum; + res->end = ext_addr->address.maximum; window = ext_addr->producer_consumer == ACPI_PRODUCER; switch(ext_addr->resource_type) { case ACPI_MEMORY_RANGE: - len = ext_addr->maximum - ext_addr->minimum + 1; + len = ext_addr->address.maximum - ext_addr->address.minimum + 1; res->flags = acpi_dev_memresource_flags(len, ext_addr->info.mem.write_protect, window); break; case ACPI_IO_RANGE: - io_decode = ext_addr->granularity == 0xfff ? + io_decode = ext_addr->address.granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; - res->flags = acpi_dev_ioresource_flags(ext_addr->minimum, - ext_addr->maximum, + res->flags = acpi_dev_ioresource_flags(ext_addr->address.minimum, + ext_addr->address.maximum, io_decode, window); break; case ACPI_BUS_NUMBER_RANGE: diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index d5d4cd82b9f7..5c0baa9ffc64 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -976,8 +976,8 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data) status = acpi_resource_to_address64(res, &addr); if (ACPI_SUCCESS(status)) { - hdp->hd_phys_address = addr.minimum; - hdp->hd_address = ioremap(addr.minimum, addr.address_length); + hdp->hd_phys_address = addr.address.minimum; + hdp->hd_address = ioremap(addr.address.minimum, addr.address.address_length); if (hpet_is_known(hdp)) { iounmap(hdp->hd_address); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 4d6b26979fbd..bb3725b672cf 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -861,8 +861,8 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx) break; case ACPI_RESOURCE_TYPE_ADDRESS64: - hyperv_mmio.start = res->data.address64.minimum; - hyperv_mmio.end = res->data.address64.maximum; + hyperv_mmio.start = res->data.address64.address.minimum; + hyperv_mmio.end = res->data.address64.address.maximum; break; } diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 66977ebf13b3..2d9bc789af0f 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -410,12 +410,12 @@ static __init void pnpacpi_parse_address_option(struct pnp_dev *dev, if (p->resource_type == ACPI_MEMORY_RANGE) { if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) flags = IORESOURCE_MEM_WRITEABLE; - pnp_register_mem_resource(dev, option_flags, p->minimum, - p->minimum, 0, p->address_length, + pnp_register_mem_resource(dev, option_flags, p->address.minimum, + p->address.minimum, 0, p->address.address_length, flags); } else if (p->resource_type == ACPI_IO_RANGE) - pnp_register_port_resource(dev, option_flags, p->minimum, - p->minimum, 0, p->address_length, + pnp_register_port_resource(dev, option_flags, p->address.minimum, + p->address.minimum, 0, p->address.address_length, IORESOURCE_IO_FIXED); } @@ -429,12 +429,12 @@ static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev, if (p->resource_type == ACPI_MEMORY_RANGE) { if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) flags = IORESOURCE_MEM_WRITEABLE; - pnp_register_mem_resource(dev, option_flags, p->minimum, - p->minimum, 0, p->address_length, + pnp_register_mem_resource(dev, option_flags, p->address.minimum, + p->address.minimum, 0, p->address.address_length, flags); } else if (p->resource_type == ACPI_IO_RANGE) - pnp_register_port_resource(dev, option_flags, p->minimum, - p->minimum, 0, p->address_length, + pnp_register_port_resource(dev, option_flags, p->address.minimum, + p->address.minimum, 0, p->address.address_length, IORESOURCE_IO_FIXED); } diff --git a/drivers/xen/xen-acpi-memhotplug.c b/drivers/xen/xen-acpi-memhotplug.c index 34e40b733f9a..4fc886cd5586 100644 --- a/drivers/xen/xen-acpi-memhotplug.c +++ b/drivers/xen/xen-acpi-memhotplug.c @@ -117,8 +117,8 @@ acpi_memory_get_resource(struct acpi_resource *resource, void *context) list_for_each_entry(info, &mem_device->res_list, list) { if ((info->caching == address64.info.mem.caching) && (info->write_protect == address64.info.mem.write_protect) && - (info->start_addr + info->length == address64.minimum)) { - info->length += address64.address_length; + (info->start_addr + info->length == address64.address.minimum)) { + info->length += address64.address.address_length; return AE_OK; } } @@ -130,8 +130,8 @@ acpi_memory_get_resource(struct acpi_resource *resource, void *context) INIT_LIST_HEAD(&new->list); new->caching = address64.info.mem.caching; new->write_protect = address64.info.mem.write_protect; - new->start_addr = address64.minimum; - new->length = address64.address_length; + new->start_addr = address64.address.minimum; + new->length = address64.address.address_length; list_add_tail(&new->list, &mem_device->res_list); return AE_OK; diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h index eb760ca0b2e0..0b75e01212c7 100644 --- a/include/acpi/acrestyp.h +++ b/include/acpi/acrestyp.h @@ -305,43 +305,51 @@ struct acpi_resource_source { u8 max_address_fixed; \ union acpi_resource_attribute info; -struct acpi_resource_address { -ACPI_RESOURCE_ADDRESS_COMMON}; - -struct acpi_resource_address16 { - ACPI_RESOURCE_ADDRESS_COMMON u16 granularity; +struct acpi_address16_attribute { + u16 granularity; u16 minimum; u16 maximum; u16 translation_offset; u16 address_length; - struct acpi_resource_source resource_source; }; -struct acpi_resource_address32 { - ACPI_RESOURCE_ADDRESS_COMMON u32 granularity; +struct acpi_address32_attribute { + u32 granularity; u32 minimum; u32 maximum; u32 translation_offset; u32 address_length; - struct acpi_resource_source resource_source; }; -struct acpi_resource_address64 { - ACPI_RESOURCE_ADDRESS_COMMON u64 granularity; +struct acpi_address64_attribute { + u64 granularity; u64 minimum; u64 maximum; u64 translation_offset; u64 address_length; +}; + +struct acpi_resource_address { +ACPI_RESOURCE_ADDRESS_COMMON}; + +struct acpi_resource_address16 { + ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address16_attribute address; + struct acpi_resource_source resource_source; +}; + +struct acpi_resource_address32 { + ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address32_attribute address; + struct acpi_resource_source resource_source; +}; + +struct acpi_resource_address64 { + ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address64_attribute address; struct acpi_resource_source resource_source; }; struct acpi_resource_extended_address64 { ACPI_RESOURCE_ADDRESS_COMMON u8 revision_ID; - u64 granularity; - u64 minimum; - u64 maximum; - u64 translation_offset; - u64 address_length; + struct acpi_address64_attribute address; u64 type_specific; }; -- cgit v1.2.3 From b00783fd90388d221dabd4df2affeea7da2363cd Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:55:08 +0100 Subject: ACPI / cpuidle: Drop unnecessary calls from acpi_idle_do_entry() Since the cpuidle core calls stop_critical_timings() and start_critical_timings() around the execution of ->enter callbacks, acpi_idle_do_entry() doesn't need to do that (and really shouldn't). Also using "inline" on it is pointless and the kerneldoc entry does not reflect the actual situation any more. Fix all of the above. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 87b704e41877..f36517164553 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -681,15 +681,13 @@ static int acpi_idle_bm_check(void) } /** - * acpi_idle_do_entry - a helper function that does C2 and C3 type entry + * acpi_idle_do_entry - enter idle state using the appropriate method * @cx: cstate data * * Caller disables interrupt before call and enables interrupt after return. */ -static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx) +static void acpi_idle_do_entry(struct acpi_processor_cx *cx) { - /* Don't trace irqs off for idle */ - stop_critical_timings(); if (cx->entry_method == ACPI_CSTATE_FFH) { /* Call into architectural FFH based C-state */ acpi_processor_ffh_cstate_enter(cx); @@ -703,7 +701,6 @@ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx) gets asserted in time to freeze execution properly. */ inl(acpi_gbl_FADT.xpm_timer_block.address); } - start_critical_timings(); } /** -- cgit v1.2.3 From 67f592c8f681061d69c621b97a868e679c8a77be Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:55:17 +0100 Subject: ACPI / cpuidle: Drop unnecessary calls from ->enter callback routines acpi_idle_enter_simple() and acpi_idle_enter_bm() don't need to call sched_clock_idle_sleep/wakeup_event(), because that's taken care of by the core already. Namely, sched_clock_idle_sleep_event() is called by tick_nohz_start_idle() called by __tick_nohz_idle_enter() which in turn is called by tick_nohz_idle_enter() and that is called by cpu_idle_loop(). Analogously for sched_clock_idle_wakeup_event(). For this reason, drop those calls from the ACPI cpuidle driver's ->enter callback routines. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 8 -------- 1 file changed, 8 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f36517164553..ceeff3d473f1 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -791,12 +791,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (cx->type == ACPI_STATE_C3) ACPI_FLUSH_CPU_CACHE(); - /* Tell the scheduler that we are going deep-idle: */ - sched_clock_idle_sleep_event(); acpi_idle_do_entry(cx); - sched_clock_idle_wakeup_event(0); - lapic_timer_state_broadcast(pr, cx, 0); return index; } @@ -842,8 +838,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, acpi_unlazy_tlb(smp_processor_id()); - /* Tell the scheduler that we are going deep-idle: */ - sched_clock_idle_sleep_event(); /* * Must be done before busmaster disable as we might need to * access HPET ! @@ -881,8 +875,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, raw_spin_unlock(&c3_lock); } - sched_clock_idle_wakeup_event(0); - lapic_timer_state_broadcast(pr, cx, 0); return index; } -- cgit v1.2.3 From adcb2623f149abd4d4783ecada543a01e25d1c04 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:55:42 +0100 Subject: ACPI / cpuidle: Clean up fallback to C1 checks acpi_idle_enter_simple() and acpi_idle_enter_bm() both check if C2/C3 type entry is supported on MP in the same way, so move those checks to a separate function and call it from both places (and it doesn't need to check if the state type is not C1, because the functions in question won't be called otherwise). While at it, use IS_ENABLED() for the CONFIG_HOTPLUG_CPU check. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index ceeff3d473f1..94c85ff2d123 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -758,6 +758,13 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) return 0; } +static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) +{ + return IS_ENABLED(CONFIG_HOTPLUG_CPU) && num_online_cpus() > 1 && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED) && + !pr->flags.has_cst; +} + /** * acpi_idle_enter_simple - enters an ACPI state without BM handling * @dev: the target CPU @@ -775,12 +782,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + if (acpi_idle_fallback_to_c1(pr)) return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); -#endif /* * Must be done before busmaster disable as we might need to @@ -819,12 +822,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + if (acpi_idle_fallback_to_c1(pr)) return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); -#endif if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (drv->safe_state_index >= 0) { -- cgit v1.2.3 From de6cc4ec6ea05de1933dc3b832013960af49c852 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:55:47 +0100 Subject: ACPI / cpuidle: Drop irrelevant comment from acpi_idle_enter_simple() The comment about bus master disable in acpi_idle_enter_simple() is irrelevant, because the function doesn't disable bus mastering, so drop it. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 94c85ff2d123..1798bbeff96b 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -785,10 +785,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (acpi_idle_fallback_to_c1(pr)) return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); - /* - * Must be done before busmaster disable as we might need to - * access HPET ! - */ lapic_timer_state_broadcast(pr, cx, 1); if (cx->type == ACPI_STATE_C3) -- cgit v1.2.3 From 5f97d6628640842229824c9f4fd433621c5a7b72 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:55:55 +0100 Subject: ACPI / cpuidle: Clean up white space in a switch statement White space in the switch statement in acpi_processor_setup_cpuidle_states() does not adhere to the kernel coding style and that makes the code difficult to read. Clean that up. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 1798bbeff96b..c05d5ec9882a 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -968,20 +968,20 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr) state->flags = 0; switch (cx->type) { - case ACPI_STATE_C1: + case ACPI_STATE_C1: state->enter = acpi_idle_enter_c1; state->enter_dead = acpi_idle_play_dead; drv->safe_state_index = count; break; - case ACPI_STATE_C2: + case ACPI_STATE_C2: state->enter = acpi_idle_enter_simple; state->enter_dead = acpi_idle_play_dead; drv->safe_state_index = count; break; - case ACPI_STATE_C3: + case ACPI_STATE_C3: state->enter = pr->flags.bm_check ? acpi_idle_enter_bm : acpi_idle_enter_simple; -- cgit v1.2.3 From 2a7383529109252a7f9d81639784e5fddb4f3df4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 2 Feb 2015 23:56:03 +0100 Subject: ACPI / cpuidle: Drop flags.bm_check tests from acpi_idle_enter_bm() Since acpi_idle_enter_bm() is only used if flags.bm_check is set for the given acpi_processor object, it doesn't make sense to check that flag in there. For this reason, drop flags.bm_check tests (and some code depending on them) from acpi_idle_enter_bm(). Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index c05d5ec9882a..eaa32586f89c 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -842,28 +842,25 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, /* * disable bus master * bm_check implies we need ARB_DIS - * !bm_check implies we need cache flush * bm_control implies whether we can do ARB_DIS * * That leaves a case where bm_check is set and bm_control is * not set. In that case we cannot do much, we enter C3 * without doing anything. */ - if (pr->flags.bm_check && pr->flags.bm_control) { + if (pr->flags.bm_control) { raw_spin_lock(&c3_lock); c3_cpu_count++; /* Disable bus master arbitration when all CPUs are in C3 */ if (c3_cpu_count == num_online_cpus()) acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1); raw_spin_unlock(&c3_lock); - } else if (!pr->flags.bm_check) { - ACPI_FLUSH_CPU_CACHE(); } acpi_idle_do_entry(cx); /* Re-enable bus master arbitration */ - if (pr->flags.bm_check && pr->flags.bm_control) { + if (pr->flags.bm_control) { raw_spin_lock(&c3_lock); acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0); c3_cpu_count--; -- cgit v1.2.3 From 3df2da96874402722d760e5d4eb2968737e5bb01 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 3 Feb 2015 14:29:43 +0100 Subject: Revert "ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA" Revert commit 6c17ee44d524 (ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA), as it introduced registration and probe ordering problems between devices on the LPSS that may lead to full hard system hang on boot in some cases. --- drivers/acpi/acpi_lpss.c | 35 +++++++---------------------------- 1 file changed, 7 insertions(+), 28 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 4f3febf8a589..e75737fd7eef 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -1,7 +1,7 @@ /* * ACPI support for Intel Lynxpoint LPSS. * - * Copyright (C) 2013, 2014, Intel Corporation + * Copyright (C) 2013, Intel Corporation * Authors: Mika Westerberg * Rafael J. Wysocki * @@ -60,8 +60,6 @@ ACPI_MODULE_NAME("acpi_lpss"); #define LPSS_CLK_DIVIDER BIT(2) #define LPSS_LTR BIT(3) #define LPSS_SAVE_CTX BIT(4) -#define LPSS_DEV_PROXY BIT(5) -#define LPSS_PROXY_REQ BIT(6) struct lpss_private_data; @@ -72,10 +70,8 @@ struct lpss_device_desc { void (*setup)(struct lpss_private_data *pdata); }; -static struct device *proxy_device; - static struct lpss_device_desc lpss_dma_desc = { - .flags = LPSS_CLK | LPSS_PROXY_REQ, + .flags = LPSS_CLK, }; struct lpss_private_data { @@ -150,24 +146,22 @@ static struct lpss_device_desc byt_pwm_dev_desc = { }; static struct lpss_device_desc byt_uart_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX | - LPSS_DEV_PROXY, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, .prv_offset = 0x800, .setup = lpss_uart_setup, }; static struct lpss_device_desc byt_spi_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX | - LPSS_DEV_PROXY, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, .prv_offset = 0x400, }; static struct lpss_device_desc byt_sdio_dev_desc = { - .flags = LPSS_CLK | LPSS_DEV_PROXY, + .flags = LPSS_CLK, }; static struct lpss_device_desc byt_i2c_dev_desc = { - .flags = LPSS_CLK | LPSS_SAVE_CTX | LPSS_DEV_PROXY, + .flags = LPSS_CLK | LPSS_SAVE_CTX, .prv_offset = 0x800, .setup = byt_i2c_setup, }; @@ -374,8 +368,6 @@ static int acpi_lpss_create_device(struct acpi_device *adev, adev->driver_data = pdata; pdev = acpi_create_platform_device(adev); if (!IS_ERR_OR_NULL(pdev)) { - if (!proxy_device && dev_desc->flags & LPSS_DEV_PROXY) - proxy_device = &pdev->dev; return 1; } @@ -600,14 +592,7 @@ static int acpi_lpss_runtime_suspend(struct device *dev) if (pdata->dev_desc->flags & LPSS_SAVE_CTX) acpi_lpss_save_ctx(dev, pdata); - ret = acpi_dev_runtime_suspend(dev); - if (ret) - return ret; - - if (pdata->dev_desc->flags & LPSS_PROXY_REQ && proxy_device) - return pm_runtime_put_sync_suspend(proxy_device); - - return 0; + return acpi_dev_runtime_suspend(dev); } static int acpi_lpss_runtime_resume(struct device *dev) @@ -615,12 +600,6 @@ static int acpi_lpss_runtime_resume(struct device *dev) struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); int ret; - if (pdata->dev_desc->flags & LPSS_PROXY_REQ && proxy_device) { - ret = pm_runtime_get_sync(proxy_device); - if (ret) - return ret; - } - ret = acpi_dev_runtime_resume(dev); if (ret) return ret; -- cgit v1.2.3 From d2cecb3d66e39765f3dec8adfb88c322e709b06d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 3 Feb 2015 21:54:48 +0100 Subject: ACPI / cpuidle: Merge acpi_idle_enter_c1() and acpi_idle_enter_simple() acpi_idle_enter_c1() and acpi_idle_enter_simple() are close enough to each other that they can be merged into one function which reduces duplication of code quite a bit. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 43 ++++++------------------------------------- 1 file changed, 6 insertions(+), 37 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index eaa32586f89c..58113a6fa1d3 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -703,34 +703,6 @@ static void acpi_idle_do_entry(struct acpi_processor_cx *cx) } } -/** - * acpi_idle_enter_c1 - enters an ACPI C1 state-type - * @dev: the target CPU - * @drv: cpuidle driver containing cpuidle state info - * @index: index of target state - * - * This is equivalent to the HALT instruction. - */ -static int acpi_idle_enter_c1(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index) -{ - struct acpi_processor *pr; - struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); - - pr = __this_cpu_read(processors); - - if (unlikely(!pr)) - return -EINVAL; - - lapic_timer_state_broadcast(pr, cx, 1); - acpi_idle_do_entry(cx); - - lapic_timer_state_broadcast(pr, cx, 0); - - return index; -} - - /** * acpi_idle_play_dead - enters an ACPI state for long-term idle (i.e. off-lining) * @dev: the target CPU @@ -766,7 +738,7 @@ static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) } /** - * acpi_idle_enter_simple - enters an ACPI state without BM handling + * acpi_idle_enter_simple - enters a CPU idle state without BM handling * @dev: the target CPU * @drv: cpuidle driver with cpuidle state information * @index: the index of suggested state @@ -782,8 +754,10 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; - if (acpi_idle_fallback_to_c1(pr)) - return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); + if (cx->type != ACPI_STATE_C1 && acpi_idle_fallback_to_c1(pr)) { + index = CPUIDLE_DRIVER_STATE_START; + cx = per_cpu(acpi_cstate[index], dev->cpu); + } lapic_timer_state_broadcast(pr, cx, 1); @@ -819,7 +793,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, return -EINVAL; if (acpi_idle_fallback_to_c1(pr)) - return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); + return acpi_idle_enter_simple(dev, drv, CPUIDLE_DRIVER_STATE_START); if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (drv->safe_state_index >= 0) { @@ -967,11 +941,6 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr) switch (cx->type) { case ACPI_STATE_C1: - state->enter = acpi_idle_enter_c1; - state->enter_dead = acpi_idle_play_dead; - drv->safe_state_index = count; - break; - case ACPI_STATE_C2: state->enter = acpi_idle_enter_simple; state->enter_dead = acpi_idle_play_dead; -- cgit v1.2.3 From 6491bc0c616969f7ae1fcb30a8823c333e2944c7 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 3 Feb 2015 21:55:11 +0100 Subject: ACPI / cpuidle: Common callback routine for entering states Introduce a common ->enter callback routine for the ACPI cpuidle driver, acpi_idle_enter(), which helps to reduce code complexity, size and duplication and prevents theoretically possible failues that an incorrect routine may be run to enter the given idle state due to a firmware bug (eg. when _CST returns a different set of states for each processor). Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 118 ++++++++++++++++-------------------------- 1 file changed, 45 insertions(+), 73 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 58113a6fa1d3..c256bd7fbd78 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -737,74 +737,17 @@ static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) !pr->flags.has_cst; } -/** - * acpi_idle_enter_simple - enters a CPU idle state without BM handling - * @dev: the target CPU - * @drv: cpuidle driver with cpuidle state information - * @index: the index of suggested state - */ -static int acpi_idle_enter_simple(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index) -{ - struct acpi_processor *pr; - struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); - - pr = __this_cpu_read(processors); - - if (unlikely(!pr)) - return -EINVAL; - - if (cx->type != ACPI_STATE_C1 && acpi_idle_fallback_to_c1(pr)) { - index = CPUIDLE_DRIVER_STATE_START; - cx = per_cpu(acpi_cstate[index], dev->cpu); - } - - lapic_timer_state_broadcast(pr, cx, 1); - - if (cx->type == ACPI_STATE_C3) - ACPI_FLUSH_CPU_CACHE(); - - acpi_idle_do_entry(cx); - - lapic_timer_state_broadcast(pr, cx, 0); - return index; -} - static int c3_cpu_count; static DEFINE_RAW_SPINLOCK(c3_lock); /** * acpi_idle_enter_bm - enters C3 with proper BM handling - * @dev: the target CPU - * @drv: cpuidle driver containing state data - * @index: the index of suggested state - * - * If BM is detected, the deepest non-C3 idle state is entered instead. + * @pr: Target processor + * @cx: Target state context */ -static int acpi_idle_enter_bm(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index) +static void acpi_idle_enter_bm(struct acpi_processor *pr, + struct acpi_processor_cx *cx) { - struct acpi_processor *pr; - struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); - - pr = __this_cpu_read(processors); - - if (unlikely(!pr)) - return -EINVAL; - - if (acpi_idle_fallback_to_c1(pr)) - return acpi_idle_enter_simple(dev, drv, CPUIDLE_DRIVER_STATE_START); - - if (!cx->bm_sts_skip && acpi_idle_bm_check()) { - if (drv->safe_state_index >= 0) { - return drv->states[drv->safe_state_index].enter(dev, - drv, drv->safe_state_index); - } else { - acpi_safe_halt(); - return -EBUSY; - } - } - acpi_unlazy_tlb(smp_processor_id()); /* @@ -842,6 +785,45 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, } lapic_timer_state_broadcast(pr, cx, 0); +} + +static int acpi_idle_enter(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) +{ + struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); + struct acpi_processor *pr; + + pr = __this_cpu_read(processors); + if (unlikely(!pr)) + return -EINVAL; + + if (cx->type != ACPI_STATE_C1) { + if (acpi_idle_fallback_to_c1(pr)) { + index = CPUIDLE_DRIVER_STATE_START; + cx = per_cpu(acpi_cstate[index], dev->cpu); + } else if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check) { + if (cx->bm_sts_skip || !acpi_idle_bm_check()) { + acpi_idle_enter_bm(pr, cx); + return index; + } else if (drv->safe_state_index >= 0) { + index = drv->safe_state_index; + cx = per_cpu(acpi_cstate[index], dev->cpu); + } else { + acpi_safe_halt(); + return -EBUSY; + } + } + } + + lapic_timer_state_broadcast(pr, cx, 1); + + if (cx->type == ACPI_STATE_C3) + ACPI_FLUSH_CPU_CACHE(); + + acpi_idle_do_entry(cx); + + lapic_timer_state_broadcast(pr, cx, 0); + return index; } @@ -936,22 +918,12 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr) strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); state->exit_latency = cx->latency; state->target_residency = cx->latency * latency_factor; + state->enter = acpi_idle_enter; state->flags = 0; - switch (cx->type) { - - case ACPI_STATE_C1: - case ACPI_STATE_C2: - state->enter = acpi_idle_enter_simple; + if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2) { state->enter_dead = acpi_idle_play_dead; drv->safe_state_index = count; - break; - - case ACPI_STATE_C3: - state->enter = pr->flags.bm_check ? - acpi_idle_enter_bm : - acpi_idle_enter_simple; - break; } count++; -- cgit v1.2.3 From c793504de3de484076e1eb96d5187af55f47945c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:47 +0800 Subject: ACPI: Remove redundant check in function acpi_dev_resource_address_space() The ACPI type is checked in acpi_resource_to_address64() anyway. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index d0a4d90c6bcc..1c616a56e007 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -189,15 +189,6 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, u64 len; u8 io_decode; - switch (ares->type) { - case ACPI_RESOURCE_TYPE_ADDRESS16: - case ACPI_RESOURCE_TYPE_ADDRESS32: - case ACPI_RESOURCE_TYPE_ADDRESS64: - break; - default: - return false; - } - status = acpi_resource_to_address64(ares, &addr); if (ACPI_FAILURE(status)) return false; -- cgit v1.2.3 From c420dbd13ef7f399a865498496ac9ce2755b8007 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:48 +0800 Subject: ACPI: Implement proper length checks for mem resources Check whether the resulting length is the same as the given length. Check for start <= end as well. We need to hand in the resource for this, so we can apply the flags directly. [Jiang] Remove enforcement that resource starting address must be non-zero. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 62 ++++++++++++++++++++++++++++--------------------- 1 file changed, 35 insertions(+), 27 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 1c616a56e007..3e7d9f6eb875 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -34,21 +34,37 @@ #define valid_IRQ(i) (true) #endif -static unsigned long acpi_dev_memresource_flags(u64 len, u8 write_protect, - bool window) +static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io) { - unsigned long flags = IORESOURCE_MEM; + u64 reslen = end - start + 1; - if (len == 0) - flags |= IORESOURCE_DISABLED; + /* + * CHECKME: len might be required to check versus a minimum + * length as well. 1 for io is fine, but for memory it does + * not make any sense at all. + */ + if (len && reslen && reslen == len && start <= end) + return true; + + pr_info("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n", + io ? "io" : "mem", start, end, len); + + return false; +} + +static void acpi_dev_memresource_flags(struct resource *res, u64 len, + u8 write_protect, bool window) +{ + res->flags = IORESOURCE_MEM; + + if (!acpi_dev_resource_len_valid(res->start, res->end, len, false)) + res->flags |= IORESOURCE_DISABLED; if (write_protect == ACPI_READ_WRITE_MEMORY) - flags |= IORESOURCE_MEM_WRITEABLE; + res->flags |= IORESOURCE_MEM_WRITEABLE; if (window) - flags |= IORESOURCE_WINDOW; - - return flags; + res->flags |= IORESOURCE_WINDOW; } static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, @@ -56,7 +72,7 @@ static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, { res->start = start; res->end = start + len - 1; - res->flags = acpi_dev_memresource_flags(len, write_protect, false); + acpi_dev_memresource_flags(res, len, write_protect, false); } /** @@ -77,24 +93,18 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) switch (ares->type) { case ACPI_RESOURCE_TYPE_MEMORY24: memory24 = &ares->data.memory24; - if (!memory24->minimum && !memory24->address_length) - return false; acpi_dev_get_memresource(res, memory24->minimum, memory24->address_length, memory24->write_protect); break; case ACPI_RESOURCE_TYPE_MEMORY32: memory32 = &ares->data.memory32; - if (!memory32->minimum && !memory32->address_length) - return false; acpi_dev_get_memresource(res, memory32->minimum, memory32->address_length, memory32->write_protect); break; case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: fixed_memory32 = &ares->data.fixed_memory32; - if (!fixed_memory32->address && !fixed_memory32->address_length) - return false; acpi_dev_get_memresource(res, fixed_memory32->address, fixed_memory32->address_length, fixed_memory32->write_protect); @@ -102,7 +112,8 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) default: return false; } - return true; + + return !(res->flags & IORESOURCE_DISABLED); } EXPORT_SYMBOL_GPL(acpi_dev_resource_memory); @@ -186,7 +197,6 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, acpi_status status; struct acpi_resource_address64 addr; bool window; - u64 len; u8 io_decode; status = acpi_resource_to_address64(ares, &addr); @@ -199,10 +209,9 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, switch(addr.resource_type) { case ACPI_MEMORY_RANGE: - len = addr.address.maximum - addr.address.minimum + 1; - res->flags = acpi_dev_memresource_flags(len, - addr.info.mem.write_protect, - window); + acpi_dev_memresource_flags(res, addr.address.address_length, + addr.info.mem.write_protect, + window); break; case ACPI_IO_RANGE: io_decode = addr.address.granularity == 0xfff ? @@ -236,7 +245,6 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, { struct acpi_resource_extended_address64 *ext_addr; bool window; - u64 len; u8 io_decode; if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64) @@ -250,10 +258,10 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, switch(ext_addr->resource_type) { case ACPI_MEMORY_RANGE: - len = ext_addr->address.maximum - ext_addr->address.minimum + 1; - res->flags = acpi_dev_memresource_flags(len, - ext_addr->info.mem.write_protect, - window); + acpi_dev_memresource_flags(res, + ext_addr->address.address_length, + ext_addr->info.mem.write_protect, + window); break; case ACPI_IO_RANGE: io_decode = ext_addr->address.granularity == 0xfff ? -- cgit v1.2.3 From 1d0420f1cfc4763a8c5bfc617e0a40f710c2f74d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:49 +0800 Subject: ACPI: Use the length check for io resources as well Also apply length check to IO resources. [Jiang] Remove enforcement that resource starting address must be non-zero. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 44 +++++++++++++++++++------------------------- 1 file changed, 19 insertions(+), 25 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 3e7d9f6eb875..16d291c60277 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -117,31 +117,30 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) } EXPORT_SYMBOL_GPL(acpi_dev_resource_memory); -static unsigned int acpi_dev_ioresource_flags(u64 start, u64 end, u8 io_decode, - bool window) +static void acpi_dev_ioresource_flags(struct resource *res, u64 len, + u8 io_decode, bool window) { - int flags = IORESOURCE_IO; + res->flags = IORESOURCE_IO; - if (io_decode == ACPI_DECODE_16) - flags |= IORESOURCE_IO_16BIT_ADDR; + if (!acpi_dev_resource_len_valid(res->start, res->end, len, true)) + res->flags |= IORESOURCE_DISABLED; - if (start > end || end >= 0x10003) - flags |= IORESOURCE_DISABLED; + if (res->end >= 0x10003) + res->flags |= IORESOURCE_DISABLED; - if (window) - flags |= IORESOURCE_WINDOW; + if (io_decode == ACPI_DECODE_16) + res->flags |= IORESOURCE_IO_16BIT_ADDR; - return flags; + if (window) + res->flags |= IORESOURCE_WINDOW; } static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, u8 io_decode) { - u64 end = start + len - 1; - res->start = start; - res->end = end; - res->flags = acpi_dev_ioresource_flags(start, end, io_decode, false); + res->end = start + len - 1; + acpi_dev_ioresource_flags(res, len, io_decode, false); } /** @@ -161,16 +160,12 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) switch (ares->type) { case ACPI_RESOURCE_TYPE_IO: io = &ares->data.io; - if (!io->minimum && !io->address_length) - return false; acpi_dev_get_ioresource(res, io->minimum, io->address_length, io->io_decode); break; case ACPI_RESOURCE_TYPE_FIXED_IO: fixed_io = &ares->data.fixed_io; - if (!fixed_io->address && !fixed_io->address_length) - return false; acpi_dev_get_ioresource(res, fixed_io->address, fixed_io->address_length, ACPI_DECODE_10); @@ -178,7 +173,8 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) default: return false; } - return true; + + return !(res->flags & IORESOURCE_DISABLED); } EXPORT_SYMBOL_GPL(acpi_dev_resource_io); @@ -216,9 +212,8 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, case ACPI_IO_RANGE: io_decode = addr.address.granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; - res->flags = acpi_dev_ioresource_flags(addr.address.minimum, - addr.address.maximum, - io_decode, window); + acpi_dev_ioresource_flags(res, addr.address.address_length, + io_decode, window); break; case ACPI_BUS_NUMBER_RANGE: res->flags = IORESOURCE_BUS; @@ -266,9 +261,8 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, case ACPI_IO_RANGE: io_decode = ext_addr->address.granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; - res->flags = acpi_dev_ioresource_flags(ext_addr->address.minimum, - ext_addr->address.maximum, - io_decode, window); + acpi_dev_ioresource_flags(res, ext_addr->address.address_length, + io_decode, window); break; case ACPI_BUS_NUMBER_RANGE: res->flags = IORESOURCE_BUS; -- cgit v1.2.3 From e814f6deee6188265b5af9f1190e5734f116860e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:50 +0800 Subject: ACPI: Let the parser return false for disabled resources If the parser disables a resource during parsing, let it return false, so the calling code does not need to implement further checks. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 16d291c60277..cdb1a3c4a0b9 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -219,10 +219,10 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, res->flags = IORESOURCE_BUS; break; default: - res->flags = 0; + return false; } - return true; + return !(res->flags & IORESOURCE_DISABLED); } EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); @@ -268,10 +268,10 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, res->flags = IORESOURCE_BUS; break; default: - res->flags = 0; + return false; } - return true; + return !(res->flags & IORESOURCE_DISABLED); } EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space); -- cgit v1.2.3 From eb76d55e66a9bed2359cc5a0f08168b287c4dea8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:51 +0800 Subject: ACPI: Unify the parsing of address_space and ext_address_space With the unions in place which let us identify the substructs we can use a single parser for address_space and ext_address_space. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 90 +++++++++++++++++++------------------------------ 1 file changed, 34 insertions(+), 56 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index cdb1a3c4a0b9..99903d196024 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -178,6 +178,35 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) } EXPORT_SYMBOL_GPL(acpi_dev_resource_io); +static bool acpi_decode_space(struct resource *res, + struct acpi_resource_address *addr, + struct acpi_address64_attribute *attr) +{ + u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; + bool window = addr->producer_consumer == ACPI_PRODUCER; + bool wp = addr->info.mem.write_protect; + u64 len = attr->address_length; + + res->start = attr->minimum; + res->end = attr->maximum; + + switch (addr->resource_type) { + case ACPI_MEMORY_RANGE: + acpi_dev_memresource_flags(res, len, wp, window); + break; + case ACPI_IO_RANGE: + acpi_dev_ioresource_flags(res, len, iodec, window); + break; + case ACPI_BUS_NUMBER_RANGE: + res->flags = IORESOURCE_BUS; + break; + default: + return false; + } + + return !(res->flags & IORESOURCE_DISABLED); +} + /** * acpi_dev_resource_address_space - Extract ACPI address space information. * @ares: Input ACPI resource object. @@ -190,39 +219,13 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_io); bool acpi_dev_resource_address_space(struct acpi_resource *ares, struct resource *res) { - acpi_status status; struct acpi_resource_address64 addr; - bool window; - u8 io_decode; - - status = acpi_resource_to_address64(ares, &addr); - if (ACPI_FAILURE(status)) - return false; - res->start = addr.address.minimum; - res->end = addr.address.maximum; - window = addr.producer_consumer == ACPI_PRODUCER; - - switch(addr.resource_type) { - case ACPI_MEMORY_RANGE: - acpi_dev_memresource_flags(res, addr.address.address_length, - addr.info.mem.write_protect, - window); - break; - case ACPI_IO_RANGE: - io_decode = addr.address.granularity == 0xfff ? - ACPI_DECODE_10 : ACPI_DECODE_16; - acpi_dev_ioresource_flags(res, addr.address.address_length, - io_decode, window); - break; - case ACPI_BUS_NUMBER_RANGE: - res->flags = IORESOURCE_BUS; - break; - default: + if (ACPI_FAILURE(acpi_resource_to_address64(ares, &addr))) return false; - } - return !(res->flags & IORESOURCE_DISABLED); + return acpi_decode_space(res, (struct acpi_resource_address *)&addr, + &addr.address); } EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); @@ -239,39 +242,14 @@ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, struct resource *res) { struct acpi_resource_extended_address64 *ext_addr; - bool window; - u8 io_decode; if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64) return false; ext_addr = &ares->data.ext_address64; - res->start = ext_addr->address.minimum; - res->end = ext_addr->address.maximum; - window = ext_addr->producer_consumer == ACPI_PRODUCER; - - switch(ext_addr->resource_type) { - case ACPI_MEMORY_RANGE: - acpi_dev_memresource_flags(res, - ext_addr->address.address_length, - ext_addr->info.mem.write_protect, - window); - break; - case ACPI_IO_RANGE: - io_decode = ext_addr->address.granularity == 0xfff ? - ACPI_DECODE_10 : ACPI_DECODE_16; - acpi_dev_ioresource_flags(res, ext_addr->address.address_length, - io_decode, window); - break; - case ACPI_BUS_NUMBER_RANGE: - res->flags = IORESOURCE_BUS; - break; - default: - return false; - } - - return !(res->flags & IORESOURCE_DISABLED); + return acpi_decode_space(res, (struct acpi_resource_address *)ext_addr, + &ext_addr->address); } EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space); -- cgit v1.2.3 From 72e26b0d487fc494f40aa61e10a0757791e62e36 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:52 +0800 Subject: ACPI: Move the window flag logic to the combined parser Normal memory and io resources have window always set to false. Move the flag logic to the unified address space parser. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 99903d196024..15d17937c431 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -53,7 +53,7 @@ static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io) } static void acpi_dev_memresource_flags(struct resource *res, u64 len, - u8 write_protect, bool window) + u8 write_protect) { res->flags = IORESOURCE_MEM; @@ -62,9 +62,6 @@ static void acpi_dev_memresource_flags(struct resource *res, u64 len, if (write_protect == ACPI_READ_WRITE_MEMORY) res->flags |= IORESOURCE_MEM_WRITEABLE; - - if (window) - res->flags |= IORESOURCE_WINDOW; } static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, @@ -72,7 +69,7 @@ static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, { res->start = start; res->end = start + len - 1; - acpi_dev_memresource_flags(res, len, write_protect, false); + acpi_dev_memresource_flags(res, len, write_protect); } /** @@ -118,7 +115,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) EXPORT_SYMBOL_GPL(acpi_dev_resource_memory); static void acpi_dev_ioresource_flags(struct resource *res, u64 len, - u8 io_decode, bool window) + u8 io_decode) { res->flags = IORESOURCE_IO; @@ -130,9 +127,6 @@ static void acpi_dev_ioresource_flags(struct resource *res, u64 len, if (io_decode == ACPI_DECODE_16) res->flags |= IORESOURCE_IO_16BIT_ADDR; - - if (window) - res->flags |= IORESOURCE_WINDOW; } static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, @@ -140,7 +134,7 @@ static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, { res->start = start; res->end = start + len - 1; - acpi_dev_ioresource_flags(res, len, io_decode, false); + acpi_dev_ioresource_flags(res, len, io_decode); } /** @@ -183,7 +177,6 @@ static bool acpi_decode_space(struct resource *res, struct acpi_address64_attribute *attr) { u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; - bool window = addr->producer_consumer == ACPI_PRODUCER; bool wp = addr->info.mem.write_protect; u64 len = attr->address_length; @@ -192,10 +185,10 @@ static bool acpi_decode_space(struct resource *res, switch (addr->resource_type) { case ACPI_MEMORY_RANGE: - acpi_dev_memresource_flags(res, len, wp, window); + acpi_dev_memresource_flags(res, len, wp); break; case ACPI_IO_RANGE: - acpi_dev_ioresource_flags(res, len, iodec, window); + acpi_dev_ioresource_flags(res, len, iodec); break; case ACPI_BUS_NUMBER_RANGE: res->flags = IORESOURCE_BUS; @@ -204,6 +197,9 @@ static bool acpi_decode_space(struct resource *res, return false; } + if (addr->producer_consumer == ACPI_PRODUCER) + res->flags |= IORESOURCE_WINDOW; + return !(res->flags & IORESOURCE_DISABLED); } -- cgit v1.2.3 From fcb29bbcd5404494eb46ad24908a4843b5a32060 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 2 Feb 2015 10:42:53 +0800 Subject: ACPI: Add prefetch decoding to the address space parser Add support of PREFETCH attributre to ACPI address space and extended address space parser. Signed-off-by: Thomas Gleixner Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 15d17937c431..7ce00a63f695 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -200,6 +200,9 @@ static bool acpi_decode_space(struct resource *res, if (addr->producer_consumer == ACPI_PRODUCER) res->flags |= IORESOURCE_WINDOW; + if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY) + res->flags |= IORESOURCE_PREFETCH; + return !(res->flags & IORESOURCE_DISABLED); } -- cgit v1.2.3 From 8515f9368161730655b64ddaf8b11a3d20049610 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:54 +0800 Subject: ACPI: Fix a bug in parsing ACPI Memory24 resource According to ACPI spec 5, section 6.4.3.1 "24-Bit Memory Range Descriptor", minimum, maximum and address_length field in struct acpi_resource_memory24 is in granularity of 256-bytes. So shift 8-bit left to get correct address. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 7ce00a63f695..5544c6d26f32 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -90,8 +90,8 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) switch (ares->type) { case ACPI_RESOURCE_TYPE_MEMORY24: memory24 = &ares->data.memory24; - acpi_dev_get_memresource(res, memory24->minimum, - memory24->address_length, + acpi_dev_get_memresource(res, memory24->minimum << 8, + memory24->address_length << 8, memory24->write_protect); break; case ACPI_RESOURCE_TYPE_MEMORY32: -- cgit v1.2.3 From 581c19f3a72ae9ff7f24f2a6c2e67f269ed4392a Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:55 +0800 Subject: ACPI: Normalize return value of resource parser functions Normalize return value of resource parse functions as: 1) return "true" if resource is assigned. 2) return "false" and IORESOURCE_DISABLED setting in res->flags if resource is unassigned. 3) return "false" and zeroing res->flags if it's not an valid or expected resource. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 5544c6d26f32..32561290a4a0 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -80,6 +80,11 @@ static void acpi_dev_get_memresource(struct resource *res, u64 start, u64 len, * Check if the given ACPI resource object represents a memory resource and * if that's the case, use the information in it to populate the generic * resource object pointed to by @res. + * + * Return: + * 1) false with res->flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 3) true: valid assigned resource */ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) { @@ -107,6 +112,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) fixed_memory32->write_protect); break; default: + res->flags = 0; return false; } @@ -145,6 +151,11 @@ static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, * Check if the given ACPI resource object represents an I/O resource and * if that's the case, use the information in it to populate the generic * resource object pointed to by @res. + * + * Return: + * 1) false with res->flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 3) true: valid assigned resource */ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) { @@ -165,6 +176,7 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) ACPI_DECODE_10); break; default: + res->flags = 0; return false; } @@ -214,12 +226,18 @@ static bool acpi_decode_space(struct resource *res, * Check if the given ACPI resource object represents an address space resource * and if that's the case, use the information in it to populate the generic * resource object pointed to by @res. + * + * Return: + * 1) false with res->flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 3) true: valid assigned resource */ bool acpi_dev_resource_address_space(struct acpi_resource *ares, struct resource *res) { struct acpi_resource_address64 addr; + res->flags = 0; if (ACPI_FAILURE(acpi_resource_to_address64(ares, &addr))) return false; @@ -236,12 +254,18 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); * Check if the given ACPI resource object represents an extended address space * resource and if that's the case, use the information in it to populate the * generic resource object pointed to by @res. + * + * Return: + * 1) false with res->flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 3) true: valid assigned resource */ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, struct resource *res) { struct acpi_resource_extended_address64 *ext_addr; + res->flags = 0; if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64) return false; @@ -339,6 +363,11 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi, * represented by the resource and populate the generic resource object pointed * to by @res accordingly. If the registration of the GSI is not successful, * IORESOURCE_DISABLED will be set it that object's flags. + * + * Return: + * 1) false with res->flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 3) true: valid assigned resource */ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, struct resource *res) @@ -372,6 +401,7 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, ext_irq->sharable, false); break; default: + res->flags = 0; return false; } -- cgit v1.2.3 From c78b688561e684098a11012ca21a6d578f9dfb67 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:56 +0800 Subject: ACPI: Set flag IORESOURCE_UNSET for unassigned resources Also set flag IORESOURCE_UNSET for unassigned resource in addition to IORESOURCE_DISABLED to mark resource as unassigned. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 32561290a4a0..5bf73a9f26d9 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -58,7 +58,7 @@ static void acpi_dev_memresource_flags(struct resource *res, u64 len, res->flags = IORESOURCE_MEM; if (!acpi_dev_resource_len_valid(res->start, res->end, len, false)) - res->flags |= IORESOURCE_DISABLED; + res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; if (write_protect == ACPI_READ_WRITE_MEMORY) res->flags |= IORESOURCE_MEM_WRITEABLE; @@ -126,10 +126,10 @@ static void acpi_dev_ioresource_flags(struct resource *res, u64 len, res->flags = IORESOURCE_IO; if (!acpi_dev_resource_len_valid(res->start, res->end, len, true)) - res->flags |= IORESOURCE_DISABLED; + res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; if (res->end >= 0x10003) - res->flags |= IORESOURCE_DISABLED; + res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET; if (io_decode == ACPI_DECODE_16) res->flags |= IORESOURCE_IO_16BIT_ADDR; @@ -304,7 +304,7 @@ static void acpi_dev_irqresource_disabled(struct resource *res, u32 gsi) { res->start = gsi; res->end = gsi; - res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED; + res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED | IORESOURCE_UNSET; } static void acpi_dev_get_irqresource(struct resource *res, u32 gsi, -- cgit v1.2.3 From a274019fc332d7b4dcb85735978c2018522be312 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:57 +0800 Subject: ACPI: Enforce stricter checks for address space descriptors Enforce stricter checks for address space descriptors according to ACPI spec. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 5bf73a9f26d9..57891a621b96 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -192,6 +192,15 @@ static bool acpi_decode_space(struct resource *res, bool wp = addr->info.mem.write_protect; u64 len = attr->address_length; + /* + * Filter out invalid descriptor according to ACPI Spec 5.0, section + * 6.4.3.5 Address Space Resource Descriptors. + */ + if ((addr->min_address_fixed != addr->max_address_fixed && len) || + (addr->min_address_fixed && addr->max_address_fixed && !len)) + pr_debug("ACPI: Invalid address space min_addr_fix %d, max_addr_fix %d, len %llx\n", + addr->min_address_fixed, addr->max_address_fixed, len); + res->start = attr->minimum; res->end = attr->maximum; -- cgit v1.2.3 From a49170b552423a3e85fc4f0d778c707402ee4863 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:58 +0800 Subject: ACPI: Return translation offset when parsing ACPI address space resources Change function acpi_dev_resource_address_space() and acpi_dev_resource_ext_address_space() to return address space translation offset. It's based on a patch from Yinghai Lu . Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 58 +++++++++++++++++++++++------------------- drivers/pnp/pnpacpi/rsparser.c | 29 +++++++++++---------- include/linux/acpi.h | 9 +++++-- 3 files changed, 54 insertions(+), 42 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 57891a621b96..c902c8eece81 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -184,13 +184,14 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res) } EXPORT_SYMBOL_GPL(acpi_dev_resource_io); -static bool acpi_decode_space(struct resource *res, +static bool acpi_decode_space(struct resource_win *win, struct acpi_resource_address *addr, struct acpi_address64_attribute *attr) { u8 iodec = attr->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16; bool wp = addr->info.mem.write_protect; u64 len = attr->address_length; + struct resource *res = &win->res; /* * Filter out invalid descriptor according to ACPI Spec 5.0, section @@ -218,6 +219,8 @@ static bool acpi_decode_space(struct resource *res, return false; } + win->offset = attr->translation_offset; + if (addr->producer_consumer == ACPI_PRODUCER) res->flags |= IORESOURCE_WINDOW; @@ -230,27 +233,28 @@ static bool acpi_decode_space(struct resource *res, /** * acpi_dev_resource_address_space - Extract ACPI address space information. * @ares: Input ACPI resource object. - * @res: Output generic resource object. + * @win: Output generic resource object. * * Check if the given ACPI resource object represents an address space resource * and if that's the case, use the information in it to populate the generic - * resource object pointed to by @res. + * resource object pointed to by @win. * * Return: - * 1) false with res->flags setting to zero: not the expected resource type - * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 1) false with win->res.flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned + * resource * 3) true: valid assigned resource */ bool acpi_dev_resource_address_space(struct acpi_resource *ares, - struct resource *res) + struct resource_win *win) { struct acpi_resource_address64 addr; - res->flags = 0; + win->res.flags = 0; if (ACPI_FAILURE(acpi_resource_to_address64(ares, &addr))) return false; - return acpi_decode_space(res, (struct acpi_resource_address *)&addr, + return acpi_decode_space(win, (struct acpi_resource_address *)&addr, &addr.address); } EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); @@ -258,29 +262,30 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_address_space); /** * acpi_dev_resource_ext_address_space - Extract ACPI address space information. * @ares: Input ACPI resource object. - * @res: Output generic resource object. + * @win: Output generic resource object. * * Check if the given ACPI resource object represents an extended address space * resource and if that's the case, use the information in it to populate the - * generic resource object pointed to by @res. + * generic resource object pointed to by @win. * * Return: - * 1) false with res->flags setting to zero: not the expected resource type - * 2) false with IORESOURCE_DISABLED in res->flags: valid unassigned resource + * 1) false with win->res.flags setting to zero: not the expected resource type + * 2) false with IORESOURCE_DISABLED in win->res.flags: valid unassigned + * resource * 3) true: valid assigned resource */ bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, - struct resource *res) + struct resource_win *win) { struct acpi_resource_extended_address64 *ext_addr; - res->flags = 0; + win->res.flags = 0; if (ares->type != ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64) return false; ext_addr = &ares->data.ext_address64; - return acpi_decode_space(res, (struct acpi_resource_address *)ext_addr, + return acpi_decode_space(win, (struct acpi_resource_address *)ext_addr, &ext_addr->address); } EXPORT_SYMBOL_GPL(acpi_dev_resource_ext_address_space); @@ -441,7 +446,7 @@ struct res_proc_context { int error; }; -static acpi_status acpi_dev_new_resource_entry(struct resource *r, +static acpi_status acpi_dev_new_resource_entry(struct resource_win *win, struct res_proc_context *c) { struct resource_list_entry *rentry; @@ -451,7 +456,7 @@ static acpi_status acpi_dev_new_resource_entry(struct resource *r, c->error = -ENOMEM; return AE_NO_MEMORY; } - rentry->res = *r; + rentry->res = win->res; list_add_tail(&rentry->node, c->list); c->count++; return AE_OK; @@ -461,7 +466,8 @@ static acpi_status acpi_dev_process_resource(struct acpi_resource *ares, void *context) { struct res_proc_context *c = context; - struct resource r; + struct resource_win win; + struct resource *res = &win.res; int i; if (c->preproc) { @@ -476,18 +482,18 @@ static acpi_status acpi_dev_process_resource(struct acpi_resource *ares, } } - memset(&r, 0, sizeof(r)); + memset(&win, 0, sizeof(win)); - if (acpi_dev_resource_memory(ares, &r) - || acpi_dev_resource_io(ares, &r) - || acpi_dev_resource_address_space(ares, &r) - || acpi_dev_resource_ext_address_space(ares, &r)) - return acpi_dev_new_resource_entry(&r, c); + if (acpi_dev_resource_memory(ares, res) + || acpi_dev_resource_io(ares, res) + || acpi_dev_resource_address_space(ares, &win) + || acpi_dev_resource_ext_address_space(ares, &win)) + return acpi_dev_new_resource_entry(&win, c); - for (i = 0; acpi_dev_resource_interrupt(ares, i, &r); i++) { + for (i = 0; acpi_dev_resource_interrupt(ares, i, res); i++) { acpi_status status; - status = acpi_dev_new_resource_entry(&r, c); + status = acpi_dev_new_resource_entry(&win, c); if (ACPI_FAILURE(status)) return status; } diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 2d9bc789af0f..ff0356fb378f 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -180,20 +180,21 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, struct pnp_dev *dev = data; struct acpi_resource_dma *dma; struct acpi_resource_vendor_typed *vendor_typed; - struct resource r = {0}; + struct resource_win win = {{0}, 0}; + struct resource *r = &win.res; int i, flags; - if (acpi_dev_resource_address_space(res, &r) - || acpi_dev_resource_ext_address_space(res, &r)) { - pnp_add_resource(dev, &r); + if (acpi_dev_resource_address_space(res, &win) + || acpi_dev_resource_ext_address_space(res, &win)) { + pnp_add_resource(dev, &win.res); return AE_OK; } - r.flags = 0; - if (acpi_dev_resource_interrupt(res, 0, &r)) { - pnpacpi_add_irqresource(dev, &r); - for (i = 1; acpi_dev_resource_interrupt(res, i, &r); i++) - pnpacpi_add_irqresource(dev, &r); + r->flags = 0; + if (acpi_dev_resource_interrupt(res, 0, r)) { + pnpacpi_add_irqresource(dev, r); + for (i = 1; acpi_dev_resource_interrupt(res, i, r); i++) + pnpacpi_add_irqresource(dev, r); if (i > 1) { /* @@ -209,7 +210,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, } } return AE_OK; - } else if (r.flags & IORESOURCE_DISABLED) { + } else if (r->flags & IORESOURCE_DISABLED) { pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED); return AE_OK; } @@ -218,13 +219,13 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, case ACPI_RESOURCE_TYPE_MEMORY24: case ACPI_RESOURCE_TYPE_MEMORY32: case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: - if (acpi_dev_resource_memory(res, &r)) - pnp_add_resource(dev, &r); + if (acpi_dev_resource_memory(res, r)) + pnp_add_resource(dev, r); break; case ACPI_RESOURCE_TYPE_IO: case ACPI_RESOURCE_TYPE_FIXED_IO: - if (acpi_dev_resource_io(res, &r)) - pnp_add_resource(dev, &r); + if (acpi_dev_resource_io(res, r)) + pnp_add_resource(dev, r); break; case ACPI_RESOURCE_TYPE_DMA: dma = &res->data.dma; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d459cd17b477..be9eaee8f4ae 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -285,12 +285,17 @@ extern int pnpacpi_disabled; #define PXM_INVAL (-1) +struct resource_win { + struct resource res; + resource_size_t offset; +}; + bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); bool acpi_dev_resource_address_space(struct acpi_resource *ares, - struct resource *res); + struct resource_win *win); bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, - struct resource *res); + struct resource_win *win); unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, struct resource *res); -- cgit v1.2.3 From 2ea3d266bab3b497238113b20136f7c3f69ad9c0 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:42:59 +0800 Subject: ACPI: Translate resource into master side address for bridge window resources Add translation_offset into the result address for bridge window resources to form the master side address. Currently acpi_dev_resource_{ext_}address_space() are only used for devices instead of bridges, so it won't break current users. Later it will be used to support PCI host bridge drivers. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index c902c8eece81..4dc8cfb2e94e 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -205,6 +205,21 @@ static bool acpi_decode_space(struct resource_win *win, res->start = attr->minimum; res->end = attr->maximum; + /* + * For bridges that translate addresses across the bridge, + * translation_offset is the offset that must be added to the + * address on the secondary side to obtain the address on the + * primary side. Non-bridge devices must list 0 for all Address + * Translation offset bits. + */ + if (addr->producer_consumer == ACPI_PRODUCER) { + res->start += attr->translation_offset; + res->end += attr->translation_offset; + } else if (attr->translation_offset) { + pr_debug("ACPI: translation_offset(%lld) is invalid for non-bridge device.\n", + attr->translation_offset); + } + switch (addr->resource_type) { case ACPI_MEMORY_RANGE: acpi_dev_memresource_flags(res, len, wp); -- cgit v1.2.3 From 93286f4798590e711aa395503401f8632fb74f9a Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:43:00 +0800 Subject: ACPI: Add field offset to struct resource_list_entry Add field offset to struct resource_list_entry to host address space translation offset so it could be used to represent bridge resources. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 1 + include/linux/acpi.h | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 4dc8cfb2e94e..1c3abae6f2fa 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -472,6 +472,7 @@ static acpi_status acpi_dev_new_resource_entry(struct resource_win *win, return AE_NO_MEMORY; } rentry->res = win->res; + rentry->offset = win->offset; list_add_tail(&rentry->node, c->list); c->count++; return AE_OK; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index be9eaee8f4ae..21dac3cb62d2 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -303,6 +303,7 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, struct resource_list_entry { struct list_head node; struct resource res; + resource_size_t offset; }; void acpi_dev_free_resource_list(struct list_head *list); -- cgit v1.2.3 From 62d1141ff34e35de496ba06491c8e854b23b3f3e Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 2 Feb 2015 10:43:01 +0800 Subject: ACPI: Introduce helper function acpi_dev_filter_resource_type() Introduce helper function acpi_dev_filter_resource_type(), which may be used by acpi_dev_get_resources() to filer out resource based on resource type. Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/resource.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 8 +++++++ 2 files changed, 63 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 1c3abae6f2fa..3ea0d17eb951 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -569,3 +569,58 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, return c.count; } EXPORT_SYMBOL_GPL(acpi_dev_get_resources); + +/** + * acpi_dev_filter_resource_type - Filter ACPI resource according to resource + * types + * @ares: Input ACPI resource object. + * @types: Valid resource types of IORESOURCE_XXX + * + * This is a hepler function to support acpi_dev_get_resources(), which filters + * ACPI resource objects according to resource types. + */ +int acpi_dev_filter_resource_type(struct acpi_resource *ares, + unsigned long types) +{ + unsigned long type = 0; + + switch (ares->type) { + case ACPI_RESOURCE_TYPE_MEMORY24: + case ACPI_RESOURCE_TYPE_MEMORY32: + case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: + type = IORESOURCE_MEM; + break; + case ACPI_RESOURCE_TYPE_IO: + case ACPI_RESOURCE_TYPE_FIXED_IO: + type = IORESOURCE_IO; + break; + case ACPI_RESOURCE_TYPE_IRQ: + case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: + type = IORESOURCE_IRQ; + break; + case ACPI_RESOURCE_TYPE_DMA: + case ACPI_RESOURCE_TYPE_FIXED_DMA: + type = IORESOURCE_DMA; + break; + case ACPI_RESOURCE_TYPE_GENERIC_REGISTER: + type = IORESOURCE_REG; + break; + case ACPI_RESOURCE_TYPE_ADDRESS16: + case ACPI_RESOURCE_TYPE_ADDRESS32: + case ACPI_RESOURCE_TYPE_ADDRESS64: + case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64: + if (ares->data.address.resource_type == ACPI_MEMORY_RANGE) + type = IORESOURCE_MEM; + else if (ares->data.address.resource_type == ACPI_IO_RANGE) + type = IORESOURCE_IO; + else if (ares->data.address.resource_type == + ACPI_BUS_NUMBER_RANGE) + type = IORESOURCE_BUS; + break; + default: + break; + } + + return (type & types) ? 0 : 1; +} +EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 21dac3cb62d2..e818decb631f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -310,6 +310,14 @@ void acpi_dev_free_resource_list(struct list_head *list); int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, int (*preproc)(struct acpi_resource *, void *), void *preproc_data); +int acpi_dev_filter_resource_type(struct acpi_resource *ares, + unsigned long types); + +static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, + void *arg) +{ + return acpi_dev_filter_resource_type(ares, (unsigned long)arg); +} int acpi_check_resource_conflict(const struct resource *res); -- cgit v1.2.3 From 90e97820619dc912b52cc9d103272819d8b51259 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Thu, 5 Feb 2015 13:44:43 +0800 Subject: resources: Move struct resource_list_entry from ACPI into resource core Currently ACPI, PCI and pnp all implement the same resource list management with different data structure. We need to transfer from one data structure into another when passing resources from one subsystem into another subsystem. So move struct resource_list_entry from ACPI into resource core and rename it as resource_entry, then it could be reused by different subystems and avoid the data structure conversion. Introduce dedicated header file resource_ext.h instead of embedding it into ioport.h to avoid header file inclusion order issues. Signed-off-by: Jiang Liu Acked-by: Vinod Koul Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_lpss.c | 8 ++--- drivers/acpi/acpi_platform.c | 4 +-- drivers/acpi/resource.c | 17 ++++------ drivers/dma/acpi-dma.c | 10 +++--- include/linux/acpi.h | 12 +------ include/linux/resource_ext.h | 77 ++++++++++++++++++++++++++++++++++++++++++++ kernel/resource.c | 25 ++++++++++++++ 7 files changed, 120 insertions(+), 33 deletions(-) create mode 100644 include/linux/resource_ext.h (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 4f3febf8a589..dfd1b8095dad 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -313,7 +313,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev, { struct lpss_device_desc *dev_desc; struct lpss_private_data *pdata; - struct resource_list_entry *rentry; + struct resource_entry *rentry; struct list_head resource_list; struct platform_device *pdev; int ret; @@ -333,12 +333,12 @@ static int acpi_lpss_create_device(struct acpi_device *adev, goto err_out; list_for_each_entry(rentry, &resource_list, node) - if (resource_type(&rentry->res) == IORESOURCE_MEM) { + if (resource_type(rentry->res) == IORESOURCE_MEM) { if (dev_desc->prv_size_override) pdata->mmio_size = dev_desc->prv_size_override; else - pdata->mmio_size = resource_size(&rentry->res); - pdata->mmio_base = ioremap(rentry->res.start, + pdata->mmio_size = resource_size(rentry->res); + pdata->mmio_base = ioremap(rentry->res->start, pdata->mmio_size); break; } diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 6ba8beb6b9d2..1284138e42ab 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -45,7 +45,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev) struct platform_device *pdev = NULL; struct acpi_device *acpi_parent; struct platform_device_info pdevinfo; - struct resource_list_entry *rentry; + struct resource_entry *rentry; struct list_head resource_list; struct resource *resources = NULL; int count; @@ -71,7 +71,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev) } count = 0; list_for_each_entry(rentry, &resource_list, node) - resources[count++] = rentry->res; + resources[count++] = *rentry->res; acpi_dev_free_resource_list(&resource_list); } diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 3ea0d17eb951..4752b9939987 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -444,12 +444,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_resource_interrupt); */ void acpi_dev_free_resource_list(struct list_head *list) { - struct resource_list_entry *rentry, *re; - - list_for_each_entry_safe(rentry, re, list, node) { - list_del(&rentry->node); - kfree(rentry); - } + resource_list_free(list); } EXPORT_SYMBOL_GPL(acpi_dev_free_resource_list); @@ -464,16 +459,16 @@ struct res_proc_context { static acpi_status acpi_dev_new_resource_entry(struct resource_win *win, struct res_proc_context *c) { - struct resource_list_entry *rentry; + struct resource_entry *rentry; - rentry = kmalloc(sizeof(*rentry), GFP_KERNEL); + rentry = resource_list_create_entry(NULL, 0); if (!rentry) { c->error = -ENOMEM; return AE_NO_MEMORY; } - rentry->res = win->res; + *rentry->res = win->res; rentry->offset = win->offset; - list_add_tail(&rentry->node, c->list); + resource_list_add_tail(rentry, c->list); c->count++; return AE_OK; } @@ -534,7 +529,7 @@ static acpi_status acpi_dev_process_resource(struct acpi_resource *ares, * returned as the final error code. * * The resultant struct resource objects are put on the list pointed to by - * @list, that must be empty initially, as members of struct resource_list_entry + * @list, that must be empty initially, as members of struct resource_entry * objects. Callers of this routine should use %acpi_dev_free_resource_list() to * free that list. * diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c index de361a156b34..5a635646e05c 100644 --- a/drivers/dma/acpi-dma.c +++ b/drivers/dma/acpi-dma.c @@ -43,7 +43,7 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp, { const struct acpi_csrt_shared_info *si; struct list_head resource_list; - struct resource_list_entry *rentry; + struct resource_entry *rentry; resource_size_t mem = 0, irq = 0; int ret; @@ -56,10 +56,10 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp, return 0; list_for_each_entry(rentry, &resource_list, node) { - if (resource_type(&rentry->res) == IORESOURCE_MEM) - mem = rentry->res.start; - else if (resource_type(&rentry->res) == IORESOURCE_IRQ) - irq = rentry->res.start; + if (resource_type(rentry->res) == IORESOURCE_MEM) + mem = rentry->res->start; + else if (resource_type(rentry->res) == IORESOURCE_IRQ) + irq = rentry->res->start; } acpi_dev_free_resource_list(&resource_list); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index e818decb631f..e53822148b6a 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -27,6 +27,7 @@ #include #include /* for struct resource */ +#include #include #include @@ -285,11 +286,6 @@ extern int pnpacpi_disabled; #define PXM_INVAL (-1) -struct resource_win { - struct resource res; - resource_size_t offset; -}; - bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); bool acpi_dev_resource_address_space(struct acpi_resource *ares, @@ -300,12 +296,6 @@ unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, struct resource *res); -struct resource_list_entry { - struct list_head node; - struct resource res; - resource_size_t offset; -}; - void acpi_dev_free_resource_list(struct list_head *list); int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, int (*preproc)(struct acpi_resource *, void *), diff --git a/include/linux/resource_ext.h b/include/linux/resource_ext.h new file mode 100644 index 000000000000..e2bf63d881d4 --- /dev/null +++ b/include/linux/resource_ext.h @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2015, Intel Corporation + * Author: Jiang Liu + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ +#ifndef _LINUX_RESOURCE_EXT_H +#define _LINUX_RESOURCE_EXT_H +#include +#include +#include +#include + +/* Represent resource window for bridge devices */ +struct resource_win { + struct resource res; /* In master (CPU) address space */ + resource_size_t offset; /* Translation offset for bridge */ +}; + +/* + * Common resource list management data structure and interfaces to support + * ACPI, PNP and PCI host bridge etc. + */ +struct resource_entry { + struct list_head node; + struct resource *res; /* In master (CPU) address space */ + resource_size_t offset; /* Translation offset for bridge */ + struct resource __res; /* Default storage for res */ +}; + +extern struct resource_entry * +resource_list_create_entry(struct resource *res, size_t extra_size); +extern void resource_list_free(struct list_head *head); + +static inline void resource_list_add(struct resource_entry *entry, + struct list_head *head) +{ + list_add(&entry->node, head); +} + +static inline void resource_list_add_tail(struct resource_entry *entry, + struct list_head *head) +{ + list_add_tail(&entry->node, head); +} + +static inline void resource_list_del(struct resource_entry *entry) +{ + list_del(&entry->node); +} + +static inline void resource_list_free_entry(struct resource_entry *entry) +{ + kfree(entry); +} + +static inline void +resource_list_destroy_entry(struct resource_entry *entry) +{ + resource_list_del(entry); + resource_list_free_entry(entry); +} + +#define resource_list_for_each_entry(entry, list) \ + list_for_each_entry((entry), (list), node) + +#define resource_list_for_each_entry_safe(entry, tmp, list) \ + list_for_each_entry_safe((entry), (tmp), (list), node) + +#endif /* _LINUX_RESOURCE_EXT_H */ diff --git a/kernel/resource.c b/kernel/resource.c index 0bcebffc4e77..19f2357dfda3 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -22,6 +22,7 @@ #include #include #include +#include #include @@ -1529,6 +1530,30 @@ int iomem_is_exclusive(u64 addr) return err; } +struct resource_entry *resource_list_create_entry(struct resource *res, + size_t extra_size) +{ + struct resource_entry *entry; + + entry = kzalloc(sizeof(*entry) + extra_size, GFP_KERNEL); + if (entry) { + INIT_LIST_HEAD(&entry->node); + entry->res = res ? res : &entry->__res; + } + + return entry; +} +EXPORT_SYMBOL(resource_list_create_entry); + +void resource_list_free(struct list_head *head) +{ + struct resource_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, head, node) + resource_list_destroy_entry(entry); +} +EXPORT_SYMBOL(resource_list_free); + static int __init strict_iomem(char *str) { if (strstr(str, "relaxed")) -- cgit v1.2.3 From b4b55cda587442477a3a9f0669e26bba4b7800c0 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Thu, 5 Feb 2015 13:44:47 +0800 Subject: x86/PCI: Refine the way to release PCI IRQ resources Some PCI device drivers assume that pci_dev->irq won't change after calling pci_disable_device() and pci_enable_device() during suspend and resume. Commit c03b3b0738a5 ("x86, irq, mpparse: Release IOAPIC pin when PCI device is disabled") frees PCI IRQ resources when pci_disable_device() is called and reallocate IRQ resources when pci_enable_device() is called again. This breaks above assumption. So commit 3eec595235c1 ("x86, irq, PCI: Keep IRQ assignment for PCI devices during suspend/hibernation") and 9eabc99a635a ("x86, irq, PCI: Keep IRQ assignment for runtime power management") fix the issue by avoiding freeing/reallocating IRQ resources during PCI device suspend/resume. They achieve this by checking dev.power.is_prepared and dev.power.runtime_status. PM maintainer, Rafael, then pointed out that it's really an ugly fix which leaking PM internal state information to IRQ subsystem. Recently David Vrabel also reports an regression in pciback driver caused by commit cffe0a2b5a34 ("x86, irq: Keep balance of IOAPIC pin reference count"). Please refer to: http://lkml.org/lkml/2015/1/14/546 So this patch refine the way to release PCI IRQ resources. Instead of releasing PCI IRQ resources in pci_disable_device()/ pcibios_disable_device(), we now release it at driver unbinding notification BUS_NOTIFY_UNBOUND_DRIVER. In other word, we only release PCI IRQ resources when there's no driver bound to the PCI device, and it keeps the assumption that pci_dev->irq won't through multiple invocation of pci_enable_device()/pci_disable_device(). Signed-off-by: Jiang Liu Signed-off-by: Rafael J. Wysocki --- arch/x86/include/asm/pci_x86.h | 2 -- arch/x86/pci/common.c | 34 ++++++++++++++++++++++++++++------ arch/x86/pci/intel_mid_pci.c | 4 ++-- arch/x86/pci/irq.c | 15 +-------------- drivers/acpi/pci_irq.c | 9 +-------- 5 files changed, 32 insertions(+), 32 deletions(-) (limited to 'drivers/acpi') diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h index 164e3f8d3c3d..fa1195dae425 100644 --- a/arch/x86/include/asm/pci_x86.h +++ b/arch/x86/include/asm/pci_x86.h @@ -93,8 +93,6 @@ extern raw_spinlock_t pci_config_lock; extern int (*pcibios_enable_irq)(struct pci_dev *dev); extern void (*pcibios_disable_irq)(struct pci_dev *dev); -extern bool mp_should_keep_irq(struct device *dev); - struct pci_raw_ops { int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn, int reg, int len, u32 *val); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 7b20bccf3648..ff1f0afa5ed1 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -497,6 +497,31 @@ void __init pcibios_set_cache_line_size(void) } } +/* + * Some device drivers assume dev->irq won't change after calling + * pci_disable_device(). So delay releasing of IRQ resource to driver + * unbinding time. Otherwise it will break PM subsystem and drivers + * like xen-pciback etc. + */ +static int pci_irq_notifier(struct notifier_block *nb, unsigned long action, + void *data) +{ + struct pci_dev *dev = to_pci_dev(data); + + if (action != BUS_NOTIFY_UNBOUND_DRIVER) + return NOTIFY_DONE; + + if (pcibios_disable_irq) + pcibios_disable_irq(dev); + + return NOTIFY_OK; +} + +static struct notifier_block pci_irq_nb = { + .notifier_call = pci_irq_notifier, + .priority = INT_MIN, +}; + int __init pcibios_init(void) { if (!raw_pci_ops) { @@ -509,6 +534,9 @@ int __init pcibios_init(void) if (pci_bf_sort >= pci_force_bf) pci_sort_breadthfirst(); + + bus_register_notifier(&pci_bus_type, &pci_irq_nb); + return 0; } @@ -667,12 +695,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return 0; } -void pcibios_disable_device (struct pci_dev *dev) -{ - if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq) - pcibios_disable_irq(dev); -} - int pci_ext_cfg_avail(void) { if (raw_pci_ext_ops) diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 44b9271580b5..95c2471f6819 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -234,10 +234,10 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) static void intel_mid_pci_irq_disable(struct pci_dev *dev) { - if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed && - dev->irq > 0) { + if (dev->irq_managed && dev->irq > 0) { mp_unmap_irq(dev->irq); dev->irq_managed = 0; + dev->irq = 0; } } diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index 5dc6ca5e1741..e71b3dbd87b8 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -1256,22 +1256,9 @@ static int pirq_enable_irq(struct pci_dev *dev) return 0; } -bool mp_should_keep_irq(struct device *dev) -{ - if (dev->power.is_prepared) - return true; -#ifdef CONFIG_PM - if (dev->power.runtime_status == RPM_SUSPENDING) - return true; -#endif - - return false; -} - static void pirq_disable_irq(struct pci_dev *dev) { - if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) && - dev->irq_managed && dev->irq) { + if (io_apic_assign_pci_irqs && dev->irq_managed && dev->irq) { mp_unmap_irq(dev->irq); dev->irq = 0; dev->irq_managed = 0; diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index b1def411c0b8..e7f718d6918a 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -485,14 +485,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev) if (!pin || !dev->irq_managed || dev->irq <= 0) return; - /* Keep IOAPIC pin configuration when suspending */ - if (dev->dev.power.is_prepared) - return; -#ifdef CONFIG_PM - if (dev->dev.power.runtime_status == RPM_SUSPENDING) - return; -#endif - entry = acpi_pci_irq_lookup(dev, pin); if (!entry) return; @@ -513,5 +505,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev) if (gsi >= 0) { acpi_unregister_gsi(gsi); dev->irq_managed = 0; + dev->irq = 0; } } -- cgit v1.2.3 From ecf5636dcd59cd5508641f995cc4c2bafedbb995 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 5 Feb 2015 13:44:48 +0800 Subject: ACPI: Add interfaces to parse IOAPIC ID for IOAPIC hotplug We need to parse APIC ID for IOAPIC registration for IOAPIC hotplug. ACPI _MAT method and MADT table are used to figure out IOAPIC ID, just like parsing CPU APIC ID for CPU hotplug. [ tglx: Fixed docbook comment ] Signed-off-by: Yinghai Lu Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Greg Kroah-Hartman Cc: Benjamin Herrenschmidt Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Borislav Petkov Cc: Len Brown Link: http://lkml.kernel.org/r/1414387308-27148-8-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_core.c | 123 ++++++++++++++++++++++++++++++++++++++---- include/linux/acpi.h | 4 ++ 2 files changed, 118 insertions(+), 9 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 02e48394276c..7962651cdbd4 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -4,6 +4,10 @@ * * Alex Chiang * - Unified x86/ia64 implementations + * + * I/O APIC hotplug support + * Yinghai Lu + * Jiang Liu */ #include #include @@ -12,6 +16,21 @@ #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_core"); +static struct acpi_table_madt *get_madt_table(void) +{ + static struct acpi_table_madt *madt; + static int read_madt; + + if (!read_madt) { + if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, + (struct acpi_table_header **)&madt))) + madt = NULL; + read_madt++; + } + + return madt; +} + static int map_lapic_id(struct acpi_subtable_header *entry, u32 acpi_id, int *apic_id) { @@ -67,17 +86,10 @@ static int map_lsapic_id(struct acpi_subtable_header *entry, static int map_madt_entry(int type, u32 acpi_id) { unsigned long madt_end, entry; - static struct acpi_table_madt *madt; - static int read_madt; int phys_id = -1; /* CPU hardware ID */ + struct acpi_table_madt *madt; - if (!read_madt) { - if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, - (struct acpi_table_header **)&madt))) - madt = NULL; - read_madt++; - } - + madt = get_madt_table(); if (!madt) return phys_id; @@ -203,3 +215,96 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) return acpi_map_cpuid(phys_id, acpi_id); } EXPORT_SYMBOL_GPL(acpi_get_cpuid); + +#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +static int get_ioapic_id(struct acpi_subtable_header *entry, u32 gsi_base, + u64 *phys_addr, int *ioapic_id) +{ + struct acpi_madt_io_apic *ioapic = (struct acpi_madt_io_apic *)entry; + + if (ioapic->global_irq_base != gsi_base) + return 0; + + *phys_addr = ioapic->address; + *ioapic_id = ioapic->id; + return 1; +} + +static int parse_madt_ioapic_entry(u32 gsi_base, u64 *phys_addr) +{ + struct acpi_subtable_header *hdr; + unsigned long madt_end, entry; + struct acpi_table_madt *madt; + int apic_id = -1; + + madt = get_madt_table(); + if (!madt) + return apic_id; + + entry = (unsigned long)madt; + madt_end = entry + madt->header.length; + + /* Parse all entries looking for a match. */ + entry += sizeof(struct acpi_table_madt); + while (entry + sizeof(struct acpi_subtable_header) < madt_end) { + hdr = (struct acpi_subtable_header *)entry; + if (hdr->type == ACPI_MADT_TYPE_IO_APIC && + get_ioapic_id(hdr, gsi_base, phys_addr, &apic_id)) + break; + else + entry += hdr->length; + } + + return apic_id; +} + +static int parse_mat_ioapic_entry(acpi_handle handle, u32 gsi_base, + u64 *phys_addr) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_subtable_header *header; + union acpi_object *obj; + int apic_id = -1; + + if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) + goto exit; + + if (!buffer.length || !buffer.pointer) + goto exit; + + obj = buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER || + obj->buffer.length < sizeof(struct acpi_subtable_header)) + goto exit; + + header = (struct acpi_subtable_header *)obj->buffer.pointer; + if (header->type == ACPI_MADT_TYPE_IO_APIC) + get_ioapic_id(header, gsi_base, phys_addr, &apic_id); + +exit: + kfree(buffer.pointer); + return apic_id; +} + +/** + * acpi_get_ioapic_id - Get IOAPIC ID and physical address matching @gsi_base + * @handle: ACPI object for IOAPIC device + * @gsi_base: GSI base to match with + * @phys_addr: Pointer to store physical address of matching IOAPIC record + * + * Walk resources returned by ACPI_MAT method, then ACPI MADT table, to search + * for an ACPI IOAPIC record matching @gsi_base. + * Return IOAPIC id and store physical address in @phys_addr if found a match, + * otherwise return <0. + */ +int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr) +{ + int apic_id; + + apic_id = parse_mat_ioapic_entry(handle, gsi_base, phys_addr); + if (apic_id == -1) + apic_id = parse_madt_ioapic_entry(gsi_base, phys_addr); + + return apic_id; +} +#endif /* CONFIG_ACPI_HOTPLUG_IOAPIC */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index e53822148b6a..24c7aa8b1d20 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -152,6 +152,10 @@ int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu); int acpi_unmap_cpu(int cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); +#endif + int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); -- cgit v1.2.3 From c183619b63ec934110e3a173a34b414e26869f96 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Thu, 5 Feb 2015 13:44:49 +0800 Subject: x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug Enable support of IOAPIC hotplug by: 1) reintroducing ACPI based IOAPIC driver 2) enhance pci_root driver to hook hotplug events The ACPI IOAPIC driver is always enabled if all of ACPI, PCI and IOAPIC are enabled. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Greg Kroah-Hartman Cc: Benjamin Herrenschmidt Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Borislav Petkov Cc: Len Brown Link: http://lkml.kernel.org/r/1414387308-27148-19-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner Signed-off-by: Rafael J. Wysocki --- drivers/acpi/Kconfig | 6 ++ drivers/acpi/Makefile | 1 + drivers/acpi/internal.h | 7 ++ drivers/acpi/ioapic.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/acpi/pci_root.c | 3 + 5 files changed, 246 insertions(+) create mode 100644 drivers/acpi/ioapic.c (limited to 'drivers/acpi') diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 8951cefb0a96..e6c3ddd92665 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -315,6 +315,12 @@ config ACPI_HOTPLUG_MEMORY To compile this driver as a module, choose M here: the module will be called acpi_memhotplug. +config ACPI_HOTPLUG_IOAPIC + bool + depends on PCI + depends on X86_IO_APIC + default y + config ACPI_SBS tristate "Smart Battery System" depends on X86 diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index f74317cc1ca9..e59494c90402 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -70,6 +70,7 @@ obj-$(CONFIG_ACPI_PROCESSOR) += processor.o obj-y += container.o obj-$(CONFIG_ACPI_THERMAL) += thermal.o obj-y += acpi_memhotplug.o +obj-$(CONFIG_ACPI_HOTPLUG_IOAPIC) += ioapic.o obj-$(CONFIG_ACPI_BATTERY) += battery.o obj-$(CONFIG_ACPI_SBS) += sbshc.o obj-$(CONFIG_ACPI_SBS) += sbs.o diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 163e82f536fa..caca2805536d 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -35,6 +35,13 @@ void acpi_int340x_thermal_init(void); int acpi_sysfs_init(void); void acpi_container_init(void); void acpi_memory_hotplug_init(void); +#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +int acpi_ioapic_add(struct acpi_pci_root *root); +int acpi_ioapic_remove(struct acpi_pci_root *root); +#else +static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; } +static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } +#endif #ifdef CONFIG_ACPI_DOCK void register_dock_dependent_device(struct acpi_device *adev, acpi_handle dshandle); diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c new file mode 100644 index 000000000000..ccdc8db16bb8 --- /dev/null +++ b/drivers/acpi/ioapic.c @@ -0,0 +1,229 @@ +/* + * IOAPIC/IOxAPIC/IOSAPIC driver + * + * Copyright (C) 2009 Fujitsu Limited. + * (c) Copyright 2009 Hewlett-Packard Development Company, L.P. + * + * Copyright (C) 2014 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Based on original drivers/pci/ioapic.c + * Yinghai Lu + * Jiang Liu + */ + +/* + * This driver manages I/O APICs added by hotplug after boot. + * We try to claim all I/O APIC devices, but those present at boot were + * registered when we parsed the ACPI MADT. + */ + +#define pr_fmt(fmt) "ACPI : IOAPIC: " fmt + +#include +#include +#include +#include + +struct acpi_pci_ioapic { + acpi_handle root_handle; + acpi_handle handle; + u32 gsi_base; + struct resource res; + struct pci_dev *pdev; + struct list_head list; +}; + +static LIST_HEAD(ioapic_list); +static DEFINE_MUTEX(ioapic_list_lock); + +static acpi_status setup_res(struct acpi_resource *acpi_res, void *data) +{ + struct resource *res = data; + struct resource_win win; + + res->flags = 0; + if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM) == 0) + return AE_OK; + + if (!acpi_dev_resource_memory(acpi_res, res)) { + if (acpi_dev_resource_address_space(acpi_res, &win) || + acpi_dev_resource_ext_address_space(acpi_res, &win)) + *res = win.res; + } + if ((res->flags & IORESOURCE_PREFETCH) || + (res->flags & IORESOURCE_DISABLED)) + res->flags = 0; + + return AE_CTRL_TERMINATE; +} + +static bool acpi_is_ioapic(acpi_handle handle, char **type) +{ + acpi_status status; + struct acpi_device_info *info; + char *hid = NULL; + bool match = false; + + if (!acpi_has_method(handle, "_GSB")) + return false; + + status = acpi_get_object_info(handle, &info); + if (ACPI_SUCCESS(status)) { + if (info->valid & ACPI_VALID_HID) + hid = info->hardware_id.string; + if (hid) { + if (strcmp(hid, "ACPI0009") == 0) { + *type = "IOxAPIC"; + match = true; + } else if (strcmp(hid, "ACPI000A") == 0) { + *type = "IOAPIC"; + match = true; + } + } + kfree(info); + } + + return match; +} + +static acpi_status handle_ioapic_add(acpi_handle handle, u32 lvl, + void *context, void **rv) +{ + acpi_status status; + unsigned long long gsi_base; + struct acpi_pci_ioapic *ioapic; + struct pci_dev *dev = NULL; + struct resource *res = NULL; + char *type = NULL; + + if (!acpi_is_ioapic(handle, &type)) + return AE_OK; + + mutex_lock(&ioapic_list_lock); + list_for_each_entry(ioapic, &ioapic_list, list) + if (ioapic->handle == handle) { + mutex_unlock(&ioapic_list_lock); + return AE_OK; + } + + status = acpi_evaluate_integer(handle, "_GSB", NULL, &gsi_base); + if (ACPI_FAILURE(status)) { + acpi_handle_warn(handle, "failed to evaluate _GSB method\n"); + goto exit; + } + + ioapic = kzalloc(sizeof(*ioapic), GFP_KERNEL); + if (!ioapic) { + pr_err("cannot allocate memory for new IOAPIC\n"); + goto exit; + } else { + ioapic->root_handle = (acpi_handle)context; + ioapic->handle = handle; + ioapic->gsi_base = (u32)gsi_base; + INIT_LIST_HEAD(&ioapic->list); + } + + if (acpi_ioapic_registered(handle, (u32)gsi_base)) + goto done; + + dev = acpi_get_pci_dev(handle); + if (dev && pci_resource_len(dev, 0)) { + if (pci_enable_device(dev) < 0) + goto exit_put; + pci_set_master(dev); + if (pci_request_region(dev, 0, type)) + goto exit_disable; + res = &dev->resource[0]; + ioapic->pdev = dev; + } else { + pci_dev_put(dev); + dev = NULL; + + res = &ioapic->res; + acpi_walk_resources(handle, METHOD_NAME__CRS, setup_res, res); + if (res->flags == 0) { + acpi_handle_warn(handle, "failed to get resource\n"); + goto exit_free; + } else if (request_resource(&iomem_resource, res)) { + acpi_handle_warn(handle, "failed to insert resource\n"); + goto exit_free; + } + } + + if (acpi_register_ioapic(handle, res->start, (u32)gsi_base)) { + acpi_handle_warn(handle, "failed to register IOAPIC\n"); + goto exit_release; + } +done: + list_add(&ioapic->list, &ioapic_list); + mutex_unlock(&ioapic_list_lock); + + if (dev) + dev_info(&dev->dev, "%s at %pR, GSI %u\n", + type, res, (u32)gsi_base); + else + acpi_handle_info(handle, "%s at %pR, GSI %u\n", + type, res, (u32)gsi_base); + + return AE_OK; + +exit_release: + if (dev) + pci_release_region(dev, 0); + else + release_resource(res); +exit_disable: + if (dev) + pci_disable_device(dev); +exit_put: + pci_dev_put(dev); +exit_free: + kfree(ioapic); +exit: + mutex_unlock(&ioapic_list_lock); + *(acpi_status *)rv = AE_ERROR; + return AE_OK; +} + +int acpi_ioapic_add(struct acpi_pci_root *root) +{ + acpi_status status, retval = AE_OK; + + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, root->device->handle, + UINT_MAX, handle_ioapic_add, NULL, + root->device->handle, (void **)&retval); + + return ACPI_SUCCESS(status) && ACPI_SUCCESS(retval) ? 0 : -ENODEV; +} + +int acpi_ioapic_remove(struct acpi_pci_root *root) +{ + int retval = 0; + struct acpi_pci_ioapic *ioapic, *tmp; + + mutex_lock(&ioapic_list_lock); + list_for_each_entry_safe(ioapic, tmp, &ioapic_list, list) { + if (root->device->handle != ioapic->root_handle) + continue; + + if (acpi_unregister_ioapic(ioapic->handle, ioapic->gsi_base)) + retval = -EBUSY; + + if (ioapic->pdev) { + pci_release_region(ioapic->pdev, 0); + pci_disable_device(ioapic->pdev); + pci_dev_put(ioapic->pdev); + } else if (ioapic->res.flags && ioapic->res.parent) { + release_resource(&ioapic->res); + } + list_del(&ioapic->list); + kfree(ioapic); + } + mutex_unlock(&ioapic_list_lock); + + return retval; +} diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index e53e0f659204..68a5f712cd19 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -621,6 +621,7 @@ static int acpi_pci_root_add(struct acpi_device *device, if (hotadd) { pcibios_resource_survey_bus(root->bus); pci_assign_unassigned_root_bus_resources(root->bus); + acpi_ioapic_add(root); } pci_lock_rescan_remove(); @@ -644,6 +645,8 @@ static void acpi_pci_root_remove(struct acpi_device *device) pci_stop_root_bus(root->bus); + WARN_ON(acpi_ioapic_remove(root)); + device_set_run_wake(root->bus->bridge, false); pci_acpi_remove_bus_pm_notifier(device); -- cgit v1.2.3 From 1c4c81a244a91a8ba37df3de33decca5d95cff0b Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:19:48 +0800 Subject: ACPICA: Events: Back port "ACPICA: Save current masks of enabled GPEs after enable register writes" This is a back port result of the Linux commit: Commit c50f13c672df758b59e026c15b9118f3ed46edc4 Subject: ACPICA: Save current masks of enabled GPEs after enable register writes Besides of the indent divergences, only a missing prototype added due to the ACPICA internal coding style. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpeutil.c | 4 ++-- drivers/acpi/acpica/evxfgpe.c | 1 - drivers/acpi/acpica/hwgpe.c | 4 ++++ 3 files changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index 17e4bbfdb096..9e2b94c8f7c4 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -167,8 +167,8 @@ u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) ******************************************************************************/ acpi_status -acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block, void *context) +acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info * gpe_xrupt_info, + struct acpi_gpe_block_info * gpe_block, void *context) { struct acpi_gpe_device_info *info = context; diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index e889a5304abd..c637666e7174 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -604,7 +604,6 @@ ACPI_EXPORT_SYMBOL(acpi_enable_all_runtime_gpes) * all GPE blocks. * ******************************************************************************/ - acpi_status acpi_enable_all_wakeup_gpes(void) { acpi_status status; diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 494027f5c067..6a955a939843 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -54,6 +54,10 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); +static acpi_status +acpi_hw_gpe_enable_write(u8 enable_mask, + struct acpi_gpe_register_info *gpe_register_info); + /****************************************************************************** * * FUNCTION: acpi_hw_get_gpe_register_bit -- cgit v1.2.3 From 833bb9316a3b4644b2671317ec4889e343ae5d42 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:19:54 +0800 Subject: ACPICA: Events: Remove duplicated sanity check in acpi_ev_enable_gpe() ACPICA commit ca10324788bc9bdaf47fa9e51145129c1299144d This patch deletes a sanity check from acpi_ev_enable_gpe(). This kind of check is already done in acpi_enable_gpe()/acpi_remove_gpe_handler()/acpi_update_all_gpes() before invoking acpi_ev_enable_gpe(): 1. acpi_enable_gpe(): same check (skip if DISPATCH_NONE) is now implemented. 2. acpi_remove_gpe_handler(): a more strict check (skip if !DISPATCH_HANDLER) is implemented. 3. acpi_update_all_gpes(): a more strict check (skip if DISPATCH_NONE || DISPATCH_HANDLER || CAN_WAKE) 4. acpi_set_gpe(): since it is invoked by the OSPM driver where the GPE handler is known to be available, such check isn't needed. So we can simply remove this duplicated check from acpi_ev_enable_gpe(). Lv Zheng. Link: https://github.com/acpica/acpica/commit/ca103247 Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index aa70154cf4fa..b2e63e785719 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -114,17 +114,6 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) ACPI_FUNCTION_TRACE(ev_enable_gpe); - /* - * We will only allow a GPE to be enabled if it has either an associated - * method (_Lxx/_Exx) or a handler, or is using the implicit notify - * feature. Otherwise, the GPE will be immediately disabled by - * acpi_ev_gpe_dispatch the first time it fires. - */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_NONE) { - return_ACPI_STATUS(AE_NO_HANDLER); - } - /* Clear the GPE (of stale events) */ status = acpi_hw_clear_gpe(gpe_event_info); -- cgit v1.2.3 From b18da580343b88fa33bbba8a7f48392447bc6cbf Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:20:01 +0800 Subject: ACPICA: Events: Remove acpi_ev_valid_gpe_event() due to current restriction ACPICA commit 8823b44ff53859ab24ecfcfd3fba8cc56b17d223 Currently we rely on the logic that GPE blocks will never be deleted, otherwise we can be broken by the race between acpi_ev_create_gpe_block(), acpi_ev_delete_gpe_block() and acpi_ev_gpe_detect(). On the other hand, if we want to protect GPE block creation/deletion, we need to use a different synchronization facility to protect the period between acpi_ev_gpe_dispatch() and acpi_ev_asynch_enable_gpe(). Which leaves us no choice but abandoning the ACPI_MTX_EVENTS used during this period. This patch removes ACPI_MTX_EVENTS used during this period and the acpi_ev_valid_gpe_event() to reflect current restriction. Lv Zheng. Link: https://github.com/acpica/acpica/commit/8823b44f Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/acevents.h | 2 -- drivers/acpi/acpica/evgpe.c | 62 +++++++++-------------------------------- drivers/acpi/acpica/evgpeutil.c | 51 ++------------------------------- 3 files changed, 15 insertions(+), 100 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 7a7811a9fc26..38b94a1a5cf8 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -143,8 +143,6 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, acpi_status acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context); -u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info); - acpi_status acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index b2e63e785719..ddee96733403 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -474,51 +474,14 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) { struct acpi_gpe_event_info *gpe_event_info = context; acpi_status status; - struct acpi_gpe_event_info *local_gpe_event_info; struct acpi_evaluate_info *info; struct acpi_gpe_notify_info *notify; ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); - /* Allocate a local GPE block */ - - local_gpe_event_info = - ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_event_info)); - if (!local_gpe_event_info) { - ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, "while handling a GPE")); - return_VOID; - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - ACPI_FREE(local_gpe_event_info); - return_VOID; - } - - /* Must revalidate the gpe_number/gpe_block */ - - if (!acpi_ev_valid_gpe_event(gpe_event_info)) { - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - ACPI_FREE(local_gpe_event_info); - return_VOID; - } - - /* - * Take a snapshot of the GPE info for this level - we copy the info to - * prevent a race condition with remove_handler/remove_block. - */ - ACPI_MEMCPY(local_gpe_event_info, gpe_event_info, - sizeof(struct acpi_gpe_event_info)); - - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - ACPI_FREE(local_gpe_event_info); - return_VOID; - } - /* Do the correct dispatch - normal method or implicit notify */ - switch (local_gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { + switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { case ACPI_GPE_DISPATCH_NOTIFY: /* * Implicit notify. @@ -531,7 +494,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) * June 2012: Expand implicit notify mechanism to support * notifies on multiple device objects. */ - notify = local_gpe_event_info->dispatch.notify_list; + notify = gpe_event_info->dispatch.notify_list; while (ACPI_SUCCESS(status) && notify) { status = acpi_ev_queue_notify_request(notify->device_node, @@ -555,7 +518,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) * _Lxx/_Exx control method that corresponds to this GPE */ info->prefix_node = - local_gpe_event_info->dispatch.method_node; + gpe_event_info->dispatch.method_node; info->flags = ACPI_IGNORE_RETURN_VALUE; status = acpi_ns_evaluate(info); @@ -565,25 +528,27 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "while evaluating GPE method [%4.4s]", - acpi_ut_get_node_name - (local_gpe_event_info->dispatch. - method_node))); + acpi_ut_get_node_name(gpe_event_info-> + dispatch. + method_node))); } break; default: - return_VOID; /* Should never happen */ + goto error_exit; /* Should never happen */ } /* Defer enabling of GPE until all notify handlers are done */ status = acpi_os_execute(OSL_NOTIFY_HANDLER, - acpi_ev_asynch_enable_gpe, - local_gpe_event_info); - if (ACPI_FAILURE(status)) { - ACPI_FREE(local_gpe_event_info); + acpi_ev_asynch_enable_gpe, gpe_event_info); + if (ACPI_SUCCESS(status)) { + return_VOID; } + +error_exit: + acpi_ev_asynch_enable_gpe(gpe_event_info); return_VOID; } @@ -611,7 +576,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_enable_gpe(void *context) (void)acpi_ev_finish_gpe(gpe_event_info); acpi_os_release_lock(acpi_gbl_gpe_lock, flags); - ACPI_FREE(gpe_event_info); return; } diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index 9e2b94c8f7c4..3f1c5aa682a5 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -106,53 +106,6 @@ unlock_and_exit: return_ACPI_STATUS(status); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_valid_gpe_event - * - * PARAMETERS: gpe_event_info - Info for this GPE - * - * RETURN: TRUE if the gpe_event is valid - * - * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. - * Should be called only when the GPE lists are semaphore locked - * and not subject to change. - * - ******************************************************************************/ - -u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) -{ - struct acpi_gpe_xrupt_info *gpe_xrupt_block; - struct acpi_gpe_block_info *gpe_block; - - ACPI_FUNCTION_ENTRY(); - - /* No need for spin lock since we are not changing any list elements */ - - /* Walk the GPE interrupt levels */ - - gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head; - while (gpe_xrupt_block) { - gpe_block = gpe_xrupt_block->gpe_block_list_head; - - /* Walk the GPE blocks on this interrupt level */ - - while (gpe_block) { - if ((&gpe_block->event_info[0] <= gpe_event_info) && - (&gpe_block->event_info[gpe_block->gpe_count] > - gpe_event_info)) { - return (TRUE); - } - - gpe_block = gpe_block->next; - } - - gpe_xrupt_block = gpe_xrupt_block->next; - } - - return (FALSE); -} - /******************************************************************************* * * FUNCTION: acpi_ev_get_gpe_device @@ -167,8 +120,8 @@ u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) ******************************************************************************/ acpi_status -acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info * gpe_xrupt_info, - struct acpi_gpe_block_info * gpe_block, void *context) +acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block, void *context) { struct acpi_gpe_device_info *info = context; -- cgit v1.2.3 From b7be6883c7b0414f72c785b498d133194151cd8b Mon Sep 17 00:00:00 2001 From: "David E. Box" Date: Thu, 5 Feb 2015 15:20:07 +0800 Subject: ACPICA: Events: Fix uninitialized variable ACPICA commit 8e21180050270897499652e922c6a41b8eb388b6 Recent changes to acpi_ev_asynch_execute_gpe_method left Status variable uninitialized before use. Initialize to AE_OK. Link: https://github.com/acpica/acpica/commit/8e211800 Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index ddee96733403..d8b919a7c9ad 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -473,7 +473,7 @@ unlock_and_exit: static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) { struct acpi_gpe_event_info *gpe_event_info = context; - acpi_status status; + acpi_status status = AE_OK; struct acpi_evaluate_info *info; struct acpi_gpe_notify_info *notify; -- cgit v1.2.3 From c539251e7c1537c8b3dcaa1c89f5393d04996013 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:20:14 +0800 Subject: ACPICA: Events: Cleanup of resetting the GPE handler to NULL before removing ACPICA commit b2b18bb38045404e253f10787b8a4ae6e94cdee6 This patch prevents acpi_remove_gpe_handler() from leaking the stale gpe_event_info->Dispatch.Handler to the caller to avoid possible NULL pointer references. Lv Zheng. Link: https://github.com/acpica/acpica/commit/b2b18bb3 Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evxface.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 55a58f3ec8df..b6b0c2341d29 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -896,6 +896,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, /* Remove the handler */ handler = gpe_event_info->dispatch.handler; + gpe_event_info->dispatch.handler = NULL; /* Restore Method node (if any), set dispatch flags */ -- cgit v1.2.3 From 779ba5a39214f0e3112bd2b94c26df03dc518a29 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:20:22 +0800 Subject: ACPICA: Events: Cleanup to move acpi_gbl_global_event_handler invocation out of acpi_ev_gpe_dispatch() ACPICA commit 04f25acdd4f655ae33f83de789bb5f4b7790171c This patch follows acpi_ev_fixed_event_detect(), which invokes acpi_gbl_global_event_handler instead of invoking it in acpi_ev_fixed_event_dispatch(), moves acpi_gbl_global_event_handler from acpi_ev_gpe_dispatch() to acpi_ev_gpe_detect(). This makes further cleanups around acpi_ev_gpe_dispatch() simpler. Lv Zheng. Link: https://github.com/acpica/acpica/commit/04f25acd Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 39 ++++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 13 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index d8b919a7c9ad..4a4f41a2822e 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -328,7 +328,10 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) { acpi_status status; struct acpi_gpe_block_info *gpe_block; + struct acpi_namespace_node *gpe_device; struct acpi_gpe_register_info *gpe_register_info; + struct acpi_gpe_event_info *gpe_event_info; + u32 gpe_number; u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; u8 enabled_status_byte; u32 status_reg; @@ -356,6 +359,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) gpe_block = gpe_xrupt_list->gpe_block_list_head; while (gpe_block) { + gpe_device = gpe_block->node; + /* * Read all of the 8-bit GPE status and enable registers in this GPE * block, saving all of them. Find all currently active GP events. @@ -431,16 +436,33 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) /* Examine one GPE bit */ + gpe_event_info = + &gpe_block-> + event_info[((acpi_size) i * + ACPI_GPE_REGISTER_WIDTH) + j]; + gpe_number = + j + gpe_register_info->base_gpe_number; + if (enabled_status_byte & (1 << j)) { + + /* Invoke global event handler if present */ + + acpi_gpe_count++; + if (acpi_gbl_global_event_handler) { + acpi_gbl_global_event_handler + (ACPI_EVENT_TYPE_GPE, + gpe_device, gpe_number, + acpi_gbl_global_event_handler_context); + } + /* * Found an active GPE. Dispatch the event to a handler * or method. */ int_status |= - acpi_ev_gpe_dispatch(gpe_block-> - node, - &gpe_block-> - event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number); + acpi_ev_gpe_dispatch(gpe_device, + gpe_event_info, + gpe_number); } } } @@ -645,15 +667,6 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, ACPI_FUNCTION_TRACE(ev_gpe_dispatch); - /* Invoke global event handler if present */ - - acpi_gpe_count++; - if (acpi_gbl_global_event_handler) { - acpi_gbl_global_event_handler(ACPI_EVENT_TYPE_GPE, gpe_device, - gpe_number, - acpi_gbl_global_event_handler_context); - } - /* * Always disable the GPE so that it does not keep firing before * any asynchronous activity completes (either from the execution -- cgit v1.2.3 From 7c43312af8b363b679d1e7840858ff8d204a4d91 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:20:29 +0800 Subject: ACPICA: Events: Cleanup GPE dispatcher type obtaining code ACPICA commit 7926d5ca9452c87f866938dcea8f12e1efb58f89 There is an issue in acpi_install_gpe_handler() and acpi_remove_gpe_handler(). The code to obtain the GPE dispatcher type from the Handler->original_flags is wrong: if (((Handler->original_flags & ACPI_GPE_DISPATCH_METHOD) || (Handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) && ACPI_GPE_DISPATCH_NOTIFY is 0x03 and ACPI_GPE_DISPATCH_METHOD is 0x02, thus this statement is TRUE for the following dispatcher types: 0x01 (ACPI_GPE_DISPATCH_HANDLER): not expected 0x02 (ACPI_GPE_DISPATCH_METHOD): expected 0x03 (ACPI_GPE_DISPATCH_NOTIFY): expected There is no functional issue due to this because Handler->original_flags is only set in acpi_install_gpe_handler(), and an earlier checker has excluded the ACPI_GPE_DISPATCH_HANDLER: if ((gpe_event_info->Flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_HANDLER) { Status = AE_ALREADY_EXISTS; goto free_and_exit; } ... Handler->original_flags = (u8) (gpe_event_info->Flags & (ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK)); We need to clean this up before modifying the GPE dispatcher type values. In order to prevent such issue from happening in the future, this patch introduces ACPI_GPE_DISPATCH_TYPE() macro to be used to obtain the GPE dispatcher types. Lv Zheng. Link: https://github.com/acpica/acpica/commit/7926d5ca Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 4 ++-- drivers/acpi/acpica/evgpeblk.c | 6 +++--- drivers/acpi/acpica/evgpeinit.c | 4 ++-- drivers/acpi/acpica/evgpeutil.c | 8 +++----- drivers/acpi/acpica/evxface.c | 18 ++++++++++-------- drivers/acpi/acpica/evxfgpe.c | 6 +++--- drivers/acpi/acpica/hwgpe.c | 2 +- include/acpi/actypes.h | 1 + 8 files changed, 25 insertions(+), 24 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 4a4f41a2822e..fccdfb2f73df 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -503,7 +503,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) /* Do the correct dispatch - normal method or implicit notify */ - switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { + switch (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags)) { case ACPI_GPE_DISPATCH_NOTIFY: /* * Implicit notify. @@ -707,7 +707,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, * If there is neither a handler nor a method, leave the GPE * disabled. */ - switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { + switch (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags)) { case ACPI_GPE_DISPATCH_HANDLER: /* Invoke the installed handler (at interrupt level) */ diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index d86699eea33c..d0a6024ae628 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -474,10 +474,10 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * Ignore GPEs that have no corresponding _Lxx/_Exx method * and GPEs that are used to wake the system */ - if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_NONE) - || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) - == ACPI_GPE_DISPATCH_HANDLER) + || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_HANDLER) || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { continue; } diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index 7be928379879..ebfd40d77d10 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -401,7 +401,7 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, return_ACPI_STATUS(AE_OK); } - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_HANDLER) { /* If there is already a handler, ignore this GPE method */ @@ -409,7 +409,7 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, return_ACPI_STATUS(AE_OK); } - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_METHOD) { /* * If there is already a method, ignore this method. But check diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index 3f1c5aa682a5..b1978122f6a9 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -324,7 +324,7 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, ACPI_GPE_REGISTER_WIDTH) + j]; - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_HANDLER) { /* Delete an installed handler block */ @@ -333,10 +333,8 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, gpe_event_info->dispatch.handler = NULL; gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; - } else - if ((gpe_event_info-> - flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_NOTIFY) { + } else if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) + == ACPI_GPE_DISPATCH_NOTIFY) { /* Delete the implicit notification device list */ diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index b6b0c2341d29..61b0261dd137 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -775,7 +775,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device, /* Make sure that there isn't a handler there already */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_HANDLER) { status = AE_ALREADY_EXISTS; goto free_and_exit; @@ -793,9 +793,10 @@ acpi_install_gpe_handler(acpi_handle gpe_device, * automatically during initialization, in which case it has to be * disabled now to avoid spurious execution of the handler. */ - if (((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) || - (handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) && - gpe_event_info->runtime_count) { + if (((ACPI_GPE_DISPATCH_TYPE(handler->original_flags) == + ACPI_GPE_DISPATCH_METHOD) || + (ACPI_GPE_DISPATCH_TYPE(handler->original_flags) == + ACPI_GPE_DISPATCH_NOTIFY)) && gpe_event_info->runtime_count) { handler->originally_enabled = TRUE; (void)acpi_ev_remove_gpe_reference(gpe_event_info); @@ -880,7 +881,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, /* Make sure that a handler is indeed installed */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) != + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != ACPI_GPE_DISPATCH_HANDLER) { status = AE_NOT_EXIST; goto unlock_and_exit; @@ -910,9 +911,10 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, * enabled, it should be enabled at this point to restore the * post-initialization configuration. */ - if (((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) || - (handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) && - handler->originally_enabled) { + if (((ACPI_GPE_DISPATCH_TYPE(handler->original_flags) == + ACPI_GPE_DISPATCH_METHOD) || + (ACPI_GPE_DISPATCH_TYPE(handler->original_flags) == + ACPI_GPE_DISPATCH_NOTIFY)) && handler->originally_enabled) { (void)acpi_ev_add_gpe_reference(gpe_event_info); } diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index c637666e7174..b836139e13bb 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -132,7 +132,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number) */ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); if (gpe_event_info) { - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) != + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != ACPI_GPE_DISPATCH_NONE) { status = acpi_ev_add_gpe_reference(gpe_event_info); } else { @@ -313,7 +313,7 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, * known as an "implicit notify". Note: The GPE is assumed to be * level-triggered (for windows compatibility). */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_NONE) { /* * This is the first device for implicit notify on this GPE. @@ -327,7 +327,7 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, * If we already have an implicit notify on this GPE, add * this device to the notify list. */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_NOTIFY) { /* Ensure that the device is not already in the list */ diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 6a955a939843..ed85fe7494ae 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -225,7 +225,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* GPE currently handled? */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) != + if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != ACPI_GPE_DISPATCH_NONE) { local_event_status |= ACPI_EVENT_FLAG_HAS_HANDLER; } diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index bbef17368e49..401705df516d 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -757,6 +757,7 @@ typedef u32 acpi_event_status; #define ACPI_GPE_DISPATCH_HANDLER (u8) 0x02 #define ACPI_GPE_DISPATCH_NOTIFY (u8) 0x03 #define ACPI_GPE_DISPATCH_MASK (u8) 0x03 +#define ACPI_GPE_DISPATCH_TYPE(flags) ((u8) ((flags) & ACPI_GPE_DISPATCH_MASK)) #define ACPI_GPE_LEVEL_TRIGGERED (u8) 0x04 #define ACPI_GPE_EDGE_TRIGGERED (u8) 0x00 -- cgit v1.2.3 From d6c02669b486a7742a27e9f3a7a66148a5a7c248 Mon Sep 17 00:00:00 2001 From: "David E. Box" Date: Thu, 5 Feb 2015 15:20:38 +0800 Subject: ACPICA: Hardware: Cast GPE enable_mask before storing ACPICA commit 490ec7f7839bf7ee5e8710a34d1d1a78d54a49b6 In function acpi_hw_low_set_gpe(), cast enable_mask to u8 before storing. The mask was read from a 32 bit register but is an 8 bit value. Fixes Visual Studio compiler warning. Link: https://github.com/acpica/acpica/commit/490ec7f7 Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/hwgpe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index ed85fe7494ae..b7fb00d8e4c1 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -150,7 +150,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action) status = acpi_hw_write(enable_mask, &gpe_register_info->enable_address); if (ACPI_SUCCESS(status) && (action & ACPI_GPE_SAVE_MASK)) { - gpe_register_info->enable_mask = enable_mask; + gpe_register_info->enable_mask = (u8)enable_mask; } return (status); } -- cgit v1.2.3 From 82a809419429f2e6142d2c5d88d91661f8aecb87 Mon Sep 17 00:00:00 2001 From: "David E. Box" Date: Thu, 5 Feb 2015 15:20:45 +0800 Subject: ACPICA: Update Copyright headers to 2015 ACPICA commit 8990e73ab2aa15d6a0068b860ab54feff25bee36 Link: https://github.com/acpica/acpica/commit/8990e73a Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/acapps.h | 4 ++-- drivers/acpi/acpica/accommon.h | 2 +- drivers/acpi/acpica/acdebug.h | 2 +- drivers/acpi/acpica/acdispat.h | 2 +- drivers/acpi/acpica/acevents.h | 2 +- drivers/acpi/acpica/acglobal.h | 2 +- drivers/acpi/acpica/achware.h | 2 +- drivers/acpi/acpica/acinterp.h | 2 +- drivers/acpi/acpica/aclocal.h | 2 +- drivers/acpi/acpica/acmacros.h | 2 +- drivers/acpi/acpica/acnamesp.h | 2 +- drivers/acpi/acpica/acobject.h | 2 +- drivers/acpi/acpica/acopcode.h | 2 +- drivers/acpi/acpica/acparser.h | 2 +- drivers/acpi/acpica/acpredef.h | 2 +- drivers/acpi/acpica/acresrc.h | 2 +- drivers/acpi/acpica/acstruct.h | 2 +- drivers/acpi/acpica/actables.h | 2 +- drivers/acpi/acpica/acutils.h | 2 +- drivers/acpi/acpica/amlcode.h | 2 +- drivers/acpi/acpica/amlresrc.h | 2 +- drivers/acpi/acpica/dsargs.c | 2 +- drivers/acpi/acpica/dscontrol.c | 2 +- drivers/acpi/acpica/dsfield.c | 2 +- drivers/acpi/acpica/dsinit.c | 2 +- drivers/acpi/acpica/dsmethod.c | 2 +- drivers/acpi/acpica/dsmthdat.c | 2 +- drivers/acpi/acpica/dsobject.c | 2 +- drivers/acpi/acpica/dsopcode.c | 2 +- drivers/acpi/acpica/dsutils.c | 2 +- drivers/acpi/acpica/dswexec.c | 2 +- drivers/acpi/acpica/dswload.c | 2 +- drivers/acpi/acpica/dswload2.c | 2 +- drivers/acpi/acpica/dswscope.c | 2 +- drivers/acpi/acpica/dswstate.c | 2 +- drivers/acpi/acpica/evevent.c | 2 +- drivers/acpi/acpica/evglock.c | 2 +- drivers/acpi/acpica/evgpe.c | 2 +- drivers/acpi/acpica/evgpeblk.c | 2 +- drivers/acpi/acpica/evgpeinit.c | 2 +- drivers/acpi/acpica/evgpeutil.c | 2 +- drivers/acpi/acpica/evhandler.c | 2 +- drivers/acpi/acpica/evmisc.c | 2 +- drivers/acpi/acpica/evregion.c | 2 +- drivers/acpi/acpica/evrgnini.c | 2 +- drivers/acpi/acpica/evsci.c | 2 +- drivers/acpi/acpica/evxface.c | 2 +- drivers/acpi/acpica/evxfevnt.c | 2 +- drivers/acpi/acpica/evxfgpe.c | 2 +- drivers/acpi/acpica/evxfregn.c | 2 +- drivers/acpi/acpica/exconfig.c | 2 +- drivers/acpi/acpica/exconvrt.c | 2 +- drivers/acpi/acpica/excreate.c | 2 +- drivers/acpi/acpica/exdebug.c | 2 +- drivers/acpi/acpica/exdump.c | 2 +- drivers/acpi/acpica/exfield.c | 2 +- drivers/acpi/acpica/exfldio.c | 2 +- drivers/acpi/acpica/exmisc.c | 2 +- drivers/acpi/acpica/exmutex.c | 2 +- drivers/acpi/acpica/exnames.c | 2 +- drivers/acpi/acpica/exoparg1.c | 2 +- drivers/acpi/acpica/exoparg2.c | 2 +- drivers/acpi/acpica/exoparg3.c | 2 +- drivers/acpi/acpica/exoparg6.c | 2 +- drivers/acpi/acpica/exprep.c | 2 +- drivers/acpi/acpica/exregion.c | 2 +- drivers/acpi/acpica/exresnte.c | 2 +- drivers/acpi/acpica/exresolv.c | 2 +- drivers/acpi/acpica/exresop.c | 2 +- drivers/acpi/acpica/exstore.c | 2 +- drivers/acpi/acpica/exstoren.c | 2 +- drivers/acpi/acpica/exstorob.c | 2 +- drivers/acpi/acpica/exsystem.c | 2 +- drivers/acpi/acpica/exutils.c | 2 +- drivers/acpi/acpica/hwacpi.c | 2 +- drivers/acpi/acpica/hwesleep.c | 2 +- drivers/acpi/acpica/hwgpe.c | 2 +- drivers/acpi/acpica/hwpci.c | 2 +- drivers/acpi/acpica/hwregs.c | 2 +- drivers/acpi/acpica/hwsleep.c | 2 +- drivers/acpi/acpica/hwtimer.c | 2 +- drivers/acpi/acpica/hwvalid.c | 2 +- drivers/acpi/acpica/hwxface.c | 2 +- drivers/acpi/acpica/hwxfsleep.c | 2 +- drivers/acpi/acpica/nsaccess.c | 2 +- drivers/acpi/acpica/nsalloc.c | 2 +- drivers/acpi/acpica/nsarguments.c | 2 +- drivers/acpi/acpica/nsconvert.c | 2 +- drivers/acpi/acpica/nsdump.c | 2 +- drivers/acpi/acpica/nsdumpdv.c | 2 +- drivers/acpi/acpica/nseval.c | 2 +- drivers/acpi/acpica/nsinit.c | 2 +- drivers/acpi/acpica/nsload.c | 2 +- drivers/acpi/acpica/nsnames.c | 2 +- drivers/acpi/acpica/nsobject.c | 2 +- drivers/acpi/acpica/nsparse.c | 2 +- drivers/acpi/acpica/nspredef.c | 2 +- drivers/acpi/acpica/nsprepkg.c | 2 +- drivers/acpi/acpica/nsrepair.c | 2 +- drivers/acpi/acpica/nsrepair2.c | 2 +- drivers/acpi/acpica/nssearch.c | 2 +- drivers/acpi/acpica/nsutils.c | 2 +- drivers/acpi/acpica/nswalk.c | 2 +- drivers/acpi/acpica/nsxfeval.c | 2 +- drivers/acpi/acpica/nsxfname.c | 2 +- drivers/acpi/acpica/nsxfobj.c | 2 +- drivers/acpi/acpica/psargs.c | 2 +- drivers/acpi/acpica/psloop.c | 2 +- drivers/acpi/acpica/psobject.c | 2 +- drivers/acpi/acpica/psopcode.c | 2 +- drivers/acpi/acpica/psopinfo.c | 2 +- drivers/acpi/acpica/psparse.c | 2 +- drivers/acpi/acpica/psscope.c | 2 +- drivers/acpi/acpica/pstree.c | 2 +- drivers/acpi/acpica/psutils.c | 2 +- drivers/acpi/acpica/pswalk.c | 2 +- drivers/acpi/acpica/psxface.c | 2 +- drivers/acpi/acpica/rsaddr.c | 2 +- drivers/acpi/acpica/rscalc.c | 2 +- drivers/acpi/acpica/rscreate.c | 2 +- drivers/acpi/acpica/rsdump.c | 2 +- drivers/acpi/acpica/rsdumpinfo.c | 2 +- drivers/acpi/acpica/rsinfo.c | 2 +- drivers/acpi/acpica/rsio.c | 2 +- drivers/acpi/acpica/rsirq.c | 2 +- drivers/acpi/acpica/rslist.c | 2 +- drivers/acpi/acpica/rsmemory.c | 2 +- drivers/acpi/acpica/rsmisc.c | 2 +- drivers/acpi/acpica/rsserial.c | 2 +- drivers/acpi/acpica/rsutils.c | 2 +- drivers/acpi/acpica/rsxface.c | 2 +- drivers/acpi/acpica/tbdata.c | 2 +- drivers/acpi/acpica/tbfadt.c | 2 +- drivers/acpi/acpica/tbfind.c | 2 +- drivers/acpi/acpica/tbinstal.c | 2 +- drivers/acpi/acpica/tbprint.c | 2 +- drivers/acpi/acpica/tbutils.c | 2 +- drivers/acpi/acpica/tbxface.c | 2 +- drivers/acpi/acpica/tbxfload.c | 2 +- drivers/acpi/acpica/tbxfroot.c | 2 +- drivers/acpi/acpica/utaddress.c | 2 +- drivers/acpi/acpica/utalloc.c | 2 +- drivers/acpi/acpica/utbuffer.c | 2 +- drivers/acpi/acpica/utcache.c | 2 +- drivers/acpi/acpica/utcopy.c | 2 +- drivers/acpi/acpica/utdebug.c | 2 +- drivers/acpi/acpica/utdecode.c | 2 +- drivers/acpi/acpica/utdelete.c | 2 +- drivers/acpi/acpica/uterror.c | 2 +- drivers/acpi/acpica/uteval.c | 2 +- drivers/acpi/acpica/utexcep.c | 2 +- drivers/acpi/acpica/utfileio.c | 2 +- drivers/acpi/acpica/utglobal.c | 2 +- drivers/acpi/acpica/uthex.c | 2 +- drivers/acpi/acpica/utids.c | 2 +- drivers/acpi/acpica/utinit.c | 2 +- drivers/acpi/acpica/utlock.c | 2 +- drivers/acpi/acpica/utmath.c | 2 +- drivers/acpi/acpica/utmisc.c | 2 +- drivers/acpi/acpica/utmutex.c | 2 +- drivers/acpi/acpica/utobject.c | 2 +- drivers/acpi/acpica/utosi.c | 2 +- drivers/acpi/acpica/utownerid.c | 2 +- drivers/acpi/acpica/utpredef.c | 2 +- drivers/acpi/acpica/utprint.c | 2 +- drivers/acpi/acpica/utresrc.c | 2 +- drivers/acpi/acpica/utstate.c | 2 +- drivers/acpi/acpica/utstring.c | 2 +- drivers/acpi/acpica/uttrack.c | 2 +- drivers/acpi/acpica/utuuid.c | 2 +- drivers/acpi/acpica/utxface.c | 2 +- drivers/acpi/acpica/utxferror.c | 2 +- drivers/acpi/acpica/utxfinit.c | 2 +- drivers/acpi/acpica/utxfmutex.c | 2 +- include/acpi/acbuffer.h | 2 +- include/acpi/acconfig.h | 2 +- include/acpi/acexcep.h | 2 +- include/acpi/acnames.h | 2 +- include/acpi/acoutput.h | 2 +- include/acpi/acpi.h | 2 +- include/acpi/acpiosxf.h | 2 +- include/acpi/acpixf.h | 2 +- include/acpi/acrestyp.h | 2 +- include/acpi/actbl.h | 2 +- include/acpi/actbl1.h | 2 +- include/acpi/actbl2.h | 2 +- include/acpi/actbl3.h | 2 +- include/acpi/actypes.h | 2 +- include/acpi/platform/acenv.h | 2 +- include/acpi/platform/acenvex.h | 2 +- include/acpi/platform/acgcc.h | 2 +- include/acpi/platform/aclinux.h | 2 +- include/acpi/platform/aclinuxex.h | 2 +- tools/power/acpi/common/cmfsize.c | 2 +- tools/power/acpi/common/getopt.c | 2 +- tools/power/acpi/os_specific/service_layers/oslibcfs.c | 2 +- tools/power/acpi/os_specific/service_layers/oslinuxtbl.c | 2 +- tools/power/acpi/os_specific/service_layers/osunixdir.c | 2 +- tools/power/acpi/os_specific/service_layers/osunixmap.c | 2 +- tools/power/acpi/os_specific/service_layers/osunixxf.c | 2 +- tools/power/acpi/tools/acpidump/acpidump.h | 2 +- tools/power/acpi/tools/acpidump/apdump.c | 2 +- tools/power/acpi/tools/acpidump/apfiles.c | 2 +- tools/power/acpi/tools/acpidump/apmain.c | 2 +- 204 files changed, 205 insertions(+), 205 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h index 3d2c88289da9..d863016565b5 100644 --- a/drivers/acpi/acpica/acapps.h +++ b/drivers/acpi/acpica/acapps.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,7 +47,7 @@ /* Common info for tool signons */ #define ACPICA_NAME "Intel ACPI Component Architecture" -#define ACPICA_COPYRIGHT "Copyright (c) 2000 - 2014 Intel Corporation" +#define ACPICA_COPYRIGHT "Copyright (c) 2000 - 2015 Intel Corporation" #if ACPI_MACHINE_WIDTH == 64 #define ACPI_WIDTH "-64" diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h index 6f1c616910ac..853aa2dbdb61 100644 --- a/drivers/acpi/acpica/accommon.h +++ b/drivers/acpi/acpica/accommon.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index 1d026ff1683f..4169bb87a996 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h index d3e2cc395d7f..408f04bcaab4 100644 --- a/drivers/acpi/acpica/acdispat.h +++ b/drivers/acpi/acpica/acdispat.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 38b94a1a5cf8..228704b78657 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 7f60582d0c8c..a165d25343e8 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index c318d3e27893..196a55244559 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index b01f71ce0523..1886bde54b5d 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 680d23bbae7c..7add32e5d8c5 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 4bceb11c7380..cf607fe69dbd 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index ee1c040f321c..952fbe0b7231 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index 8abb393dafab..3e9720e1f34f 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h index dda0e6affcf1..a5f17de45ac6 100644 --- a/drivers/acpi/acpica/acopcode.h +++ b/drivers/acpi/acpica/acopcode.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 6168b85463ed..74a390c6db16 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h index bd3908d26c4f..a972d11c97c9 100644 --- a/drivers/acpi/acpica/acpredef.h +++ b/drivers/acpi/acpica/acpredef.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index 4b008e8884a1..efc4c7124ccc 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h index cf7346110bd8..d14b547b7cd5 100644 --- a/drivers/acpi/acpica/acstruct.h +++ b/drivers/acpi/acpica/acstruct.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index 1afe46e44dac..1c127a43017b 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 486d342e74b6..c2f03e8774ad 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index 5908ccec6aea..3a95068fc119 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -7,7 +7,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h index 3a0beeb86ba5..ee0cdd60b93d 100644 --- a/drivers/acpi/acpica/amlresrc.h +++ b/drivers/acpi/acpica/amlresrc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c index 720b1cdda711..3e6989738e85 100644 --- a/drivers/acpi/acpica/dsargs.c +++ b/drivers/acpi/acpica/dsargs.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c index 8daf9de82b73..39da9da62bbf 100644 --- a/drivers/acpi/acpica/dscontrol.c +++ b/drivers/acpi/acpica/dscontrol.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index c57666196672..43b40de90484 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index aee5e45f6d35..bbe74bcebbae 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 3c7f7378b94d..d72565a3c646 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c index b67522df01ac..2e4c42b377ec 100644 --- a/drivers/acpi/acpica/dsmthdat.c +++ b/drivers/acpi/acpica/dsmthdat.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c index a1e7e6b6fcf7..8a7b07b6adc8 100644 --- a/drivers/acpi/acpica/dsobject.c +++ b/drivers/acpi/acpica/dsobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index 6c0759c0db47..77244182ff02 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index 9f74795e2268..e5ff89bcb3f5 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c index f7f5107e754d..df54d46225cd 100644 --- a/drivers/acpi/acpica/dswexec.c +++ b/drivers/acpi/acpica/dswexec.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 15623da26200..843942fb4be5 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c index 2ac28d297305..fcaa30c611fb 100644 --- a/drivers/acpi/acpica/dswload2.c +++ b/drivers/acpi/acpica/dswload2.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c index 9d6e2c1de1f8..43b3ea40c0b6 100644 --- a/drivers/acpi/acpica/dswscope.c +++ b/drivers/acpi/acpica/dswscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c index 24f7d5ea678a..89ac2022465e 100644 --- a/drivers/acpi/acpica/dswstate.c +++ b/drivers/acpi/acpica/dswstate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c index c7bffff9ed32..bf6873f95e72 100644 --- a/drivers/acpi/acpica/evevent.c +++ b/drivers/acpi/acpica/evevent.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c index 3393a73ca0d6..b78dc7c6d5d7 100644 --- a/drivers/acpi/acpica/evglock.c +++ b/drivers/acpi/acpica/evglock.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index fccdfb2f73df..836c79b8cd1d 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index d0a6024ae628..ce2a7cf3a23f 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index ebfd40d77d10..76705082b3db 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index b1978122f6a9..c369b1997632 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c index 78ac29351c9e..74e8595f5a2b 100644 --- a/drivers/acpi/acpica/evhandler.c +++ b/drivers/acpi/acpica/evhandler.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index 24ea3424981b..f7c9dfe7b990 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 8eb8575e8c16..9abace3401f9 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 1b148a440d67..da323390bb70 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c index 29630e303829..0366703d2970 100644 --- a/drivers/acpi/acpica/evsci.c +++ b/drivers/acpi/acpica/evsci.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 61b0261dd137..6d04ae944bda 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index bb8cbf5961bf..df06a23c4197 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index b836139e13bb..b8af53bce74b 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 2d6f187939c7..f21afbab03f7 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 7d2949420db7..6e0df2b9d5a4 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index c545386fee96..89a976b4ccf2 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c index 95d23dabcfbb..aaeea4840aaa 100644 --- a/drivers/acpi/acpica/excreate.c +++ b/drivers/acpi/acpica/excreate.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c index 6fbfad47518c..e67d0aca3fe6 100644 --- a/drivers/acpi/acpica/exdebug.c +++ b/drivers/acpi/acpica/exdebug.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index 0f23c3f2678e..7c213b6b6472 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index b994845ed359..c161dd974f74 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index 1d1b27a96c5b..49479927e7f7 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c index 2207e624f538..b56fc9d6f48e 100644 --- a/drivers/acpi/acpica/exmisc.c +++ b/drivers/acpi/acpica/exmisc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index b49ea2a95f4f..472030f2b5bb 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c index dbb03b544e8c..453b00c30177 100644 --- a/drivers/acpi/acpica/exnames.c +++ b/drivers/acpi/acpica/exnames.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 1b8e94104407..77930683ab7d 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c index 2ede656ee26a..fcc618aa2061 100644 --- a/drivers/acpi/acpica/exoparg2.c +++ b/drivers/acpi/acpica/exoparg2.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c index 363767cf01e5..b813fed95e56 100644 --- a/drivers/acpi/acpica/exoparg3.c +++ b/drivers/acpi/acpica/exoparg3.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c index 29e9e99f7fe3..c930edda3f65 100644 --- a/drivers/acpi/acpica/exoparg6.c +++ b/drivers/acpi/acpica/exoparg6.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c index 118e942005e5..4c2836dc825b 100644 --- a/drivers/acpi/acpica/exprep.c +++ b/drivers/acpi/acpica/exprep.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c index cd5288a257a9..0fe188e238ef 100644 --- a/drivers/acpi/acpica/exregion.c +++ b/drivers/acpi/acpica/exregion.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index ab060261b43e..c7e3b929aa85 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c index 3cde553bcbe1..b6b7f3af29e4 100644 --- a/drivers/acpi/acpica/exresolv.c +++ b/drivers/acpi/acpica/exresolv.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c index 3af8de3fcea4..d2964af9ad4d 100644 --- a/drivers/acpi/acpica/exresop.c +++ b/drivers/acpi/acpica/exresop.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c index daf49f7ea311..a7eee2400ce0 100644 --- a/drivers/acpi/acpica/exstore.c +++ b/drivers/acpi/acpica/exstore.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c index 04bd16c08f9e..3101607b4efe 100644 --- a/drivers/acpi/acpica/exstoren.c +++ b/drivers/acpi/acpica/exstoren.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index fd11018b0168..6fa3c8d8fc5f 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index f7da64123ed5..05450656fe3d 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index d9d72dff2a76..3f4225e95d93 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c index 1e66d960fc11..e5c5949f9081 100644 --- a/drivers/acpi/acpica/hwacpi.c +++ b/drivers/acpi/acpica/hwacpi.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c index 858fdd6be598..e5599f610808 100644 --- a/drivers/acpi/acpica/hwesleep.c +++ b/drivers/acpi/acpica/hwesleep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index b7fb00d8e4c1..84bc550f4f1d 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c index 6aade8e1d2a1..c5214dec4988 100644 --- a/drivers/acpi/acpica/hwpci.c +++ b/drivers/acpi/acpica/hwpci.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index a4c34d2c556b..3cf77afd142c 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index d590693eb54e..7d21cae6d602 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index 76ab5c1a814e..675c709a300b 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index 6b919127cd9d..2bd33fe56cb3 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 96d007df65ec..5f97468df8ff 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c index 6921c7f3d208..3b3767698827 100644 --- a/drivers/acpi/acpica/hwxfsleep.c +++ b/drivers/acpi/acpica/hwxfsleep.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index f1249e3463be..24fa19a76d70 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index 607eb9e5150d..e107f929d9cf 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsarguments.c b/drivers/acpi/acpica/nsarguments.c index 80fcfc8c9c1b..5d347a71bd0b 100644 --- a/drivers/acpi/acpica/nsarguments.c +++ b/drivers/acpi/acpica/nsarguments.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c index b55642c4ee58..1a8b39c8d969 100644 --- a/drivers/acpi/acpica/nsconvert.c +++ b/drivers/acpi/acpica/nsconvert.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 3d88ef4a3e0d..80f097eb7381 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 42d37109aa5d..7dc367e6fe09 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index e634a05974db..7bcc68f57afa 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index a3fb7e4c0809..4a85c4517988 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index 7c9d0181f341..bd6cd4a81316 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index 7eee0a6f02f6..d293d9748036 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c index a42ee9d6970d..677bc9330e64 100644 --- a/drivers/acpi/acpica/nsobject.c +++ b/drivers/acpi/acpica/nsobject.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index e83cff31754b..c95a119767b5 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index 392910ffbed9..0eb54315b4be 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c index 1b13b921dda9..8b79958b7aca 100644 --- a/drivers/acpi/acpica/nsprepkg.c +++ b/drivers/acpi/acpica/nsprepkg.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index 7e417aa5c91e..151fcd95ba84 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index b09e6bef72b8..c30672d23878 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c index af1cc42a8aa1..4a9d4a66016e 100644 --- a/drivers/acpi/acpica/nssearch.c +++ b/drivers/acpi/acpica/nssearch.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index 4a5e3f5c0ff7..6ad02008c0c2 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index 4758a1f2ce22..c68609a2bc1b 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index 4bd558bf10d2..b6030a2deee1 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index 8c6c11ce9760..d66c326485d8 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index 51a83298c18d..793383501f81 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c @@ -6,7 +6,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c index 314d314340ae..6d038770577b 100644 --- a/drivers/acpi/acpica/psargs.c +++ b/drivers/acpi/acpica/psargs.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index b058e2390fdd..90437227d790 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c index a6885077d59e..2f5ddd806c58 100644 --- a/drivers/acpi/acpica/psobject.c +++ b/drivers/acpi/acpica/psobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c index 1755d2ac5656..1af4a405e351 100644 --- a/drivers/acpi/acpica/psopcode.c +++ b/drivers/acpi/acpica/psopcode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c index 0d8d37ffd04d..e18e7c47f482 100644 --- a/drivers/acpi/acpica/psopinfo.c +++ b/drivers/acpi/acpica/psopinfo.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c index 6d27b597394e..a555f7f7b9a2 100644 --- a/drivers/acpi/acpica/psparse.c +++ b/drivers/acpi/acpica/psparse.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c index 32d250feea21..9d669cc6cb62 100644 --- a/drivers/acpi/acpica/psscope.c +++ b/drivers/acpi/acpica/psscope.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c index 0b64181e7720..89984f30addc 100644 --- a/drivers/acpi/acpica/pstree.c +++ b/drivers/acpi/acpica/pstree.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c index 3cd48802eede..960505ab409a 100644 --- a/drivers/acpi/acpica/psutils.c +++ b/drivers/acpi/acpica/psutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c index 9cb07e1e76d9..ba5f69171288 100644 --- a/drivers/acpi/acpica/pswalk.c +++ b/drivers/acpi/acpica/pswalk.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index e135acaa5e1c..841a5ea06094 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c index 94a3a057042c..66d406e8fe36 100644 --- a/drivers/acpi/acpica/rsaddr.c +++ b/drivers/acpi/acpica/rsaddr.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index 689556744b03..cb739a694931 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index 049d9c22a0f9..15434e4c9b34 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c index c3c56b5a9788..1539394c8c52 100644 --- a/drivers/acpi/acpica/rsdump.c +++ b/drivers/acpi/acpica/rsdump.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c index 6ba7ad5faa9c..b29d9ec63d1b 100644 --- a/drivers/acpi/acpica/rsdumpinfo.c +++ b/drivers/acpi/acpica/rsdumpinfo.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c index 9d3f8a9a24bd..edecfc675979 100644 --- a/drivers/acpi/acpica/rsinfo.c +++ b/drivers/acpi/acpica/rsinfo.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsio.c b/drivers/acpi/acpica/rsio.c index 19d64873290a..5adba018bab0 100644 --- a/drivers/acpi/acpica/rsio.c +++ b/drivers/acpi/acpica/rsio.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c index 3461f7db26df..07cfa70a475b 100644 --- a/drivers/acpi/acpica/rsirq.c +++ b/drivers/acpi/acpica/rsirq.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c index 77291293af64..50d5be2ee062 100644 --- a/drivers/acpi/acpica/rslist.c +++ b/drivers/acpi/acpica/rslist.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c index eab4483ff5f8..c6b80862030e 100644 --- a/drivers/acpi/acpica/rsmemory.c +++ b/drivers/acpi/acpica/rsmemory.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c index 41eea4bc089c..1fe49d223663 100644 --- a/drivers/acpi/acpica/rsmisc.c +++ b/drivers/acpi/acpica/rsmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c index 9e8407223d95..4c8c6fe6ea74 100644 --- a/drivers/acpi/acpica/rsserial.c +++ b/drivers/acpi/acpica/rsserial.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index 897a5ceb0420..ece3cd60cc6a 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index 295287891174..8e6276df0226 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c index f499c10ceb4a..6a144957aadd 100644 --- a/drivers/acpi/acpica/tbdata.c +++ b/drivers/acpi/acpica/tbdata.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 41519a958083..7d2486005e3f 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c index cb947700206c..0b879fcfef67 100644 --- a/drivers/acpi/acpica/tbfind.c +++ b/drivers/acpi/acpica/tbfind.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 755b90c40ddf..9bad45e63a45 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c index df3bb20ea325..ef16c06e5091 100644 --- a/drivers/acpi/acpica/tbprint.c +++ b/drivers/acpi/acpica/tbprint.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 6b1ca9991b90..6559a58439c5 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index 0f9dd80b1cdd..60e94f87f27a 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index ab5308b81aa8..aadb3002a2dd 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c index 43a54af2b548..eac52cf14f1a 100644 --- a/drivers/acpi/acpica/tbxfroot.c +++ b/drivers/acpi/acpica/tbxfroot.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c index a1acec9d2ef3..1279f50da757 100644 --- a/drivers/acpi/acpica/utaddress.c +++ b/drivers/acpi/acpica/utaddress.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c index efac83c606dc..61d8f6d186d1 100644 --- a/drivers/acpi/acpica/utalloc.c +++ b/drivers/acpi/acpica/utalloc.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c index 038ea887f562..242bd071f007 100644 --- a/drivers/acpi/acpica/utbuffer.c +++ b/drivers/acpi/acpica/utbuffer.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c index 78fde0aac487..eacc5eee362e 100644 --- a/drivers/acpi/acpica/utcache.c +++ b/drivers/acpi/acpica/utcache.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c index ff601c0f7c7a..c37ec5035f4c 100644 --- a/drivers/acpi/acpica/utcopy.c +++ b/drivers/acpi/acpica/utcopy.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index e516254c63b2..57078e3ea9b7 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c index 40e923e675fc..988e23b7795c 100644 --- a/drivers/acpi/acpica/utdecode.c +++ b/drivers/acpi/acpica/utdecode.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index a3516de213fa..71fce389fd48 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/uterror.c b/drivers/acpi/acpica/uterror.c index 8e544d4688cd..9ef80f2828e3 100644 --- a/drivers/acpi/acpica/uterror.c +++ b/drivers/acpi/acpica/uterror.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index 8fed1482d228..6c738fa0cd42 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utexcep.c b/drivers/acpi/acpica/utexcep.c index 0403dcaabaf2..743a0ae9fb17 100644 --- a/drivers/acpi/acpica/utexcep.c +++ b/drivers/acpi/acpica/utexcep.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c index 4e263a8cc6f0..7e1168be39fa 100644 --- a/drivers/acpi/acpica/utfileio.c +++ b/drivers/acpi/acpica/utfileio.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 77ceac715f28..5e8df9177da4 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c index 9afa9441b183..aa448278ba28 100644 --- a/drivers/acpi/acpica/uthex.c +++ b/drivers/acpi/acpica/uthex.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c index 4b12880e5b11..27431cfc1c44 100644 --- a/drivers/acpi/acpica/utids.c +++ b/drivers/acpi/acpica/utids.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index 77120ec9ea86..e402e07b4846 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c index dc6e96547f18..089f78bbd59b 100644 --- a/drivers/acpi/acpica/utlock.c +++ b/drivers/acpi/acpica/utlock.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c index d44dee6ee10a..f9ff100f0159 100644 --- a/drivers/acpi/acpica/utmath.c +++ b/drivers/acpi/acpica/utmath.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index 2e2bb14e1099..56bbacd576f2 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index 82717fff9ffc..37b8b58fcd56 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index dfa9009bfc87..7d83efe1ea29 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 685766fc6ca8..574cd3118313 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c index 36bec57ebd23..2959217067cb 100644 --- a/drivers/acpi/acpica/utownerid.c +++ b/drivers/acpi/acpica/utownerid.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c index db30caff130a..29e449935a82 100644 --- a/drivers/acpi/acpica/utpredef.c +++ b/drivers/acpi/acpica/utpredef.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c index 0ce3f5a0dd67..82ca9142e10d 100644 --- a/drivers/acpi/acpica/utprint.c +++ b/drivers/acpi/acpica/utprint.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index bc1ff820c7dd..b3505dbc715e 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c index 1cc97a752c15..8274cc16edc3 100644 --- a/drivers/acpi/acpica/utstate.c +++ b/drivers/acpi/acpica/utstate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c index 6dc54b3c28b0..83b6c52490dc 100644 --- a/drivers/acpi/acpica/utstring.c +++ b/drivers/acpi/acpica/utstring.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c index 7d0ee969d781..130dd9f96f0f 100644 --- a/drivers/acpi/acpica/uttrack.c +++ b/drivers/acpi/acpica/uttrack.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utuuid.c b/drivers/acpi/acpica/utuuid.c index 4dc33130f134..c6149a212149 100644 --- a/drivers/acpi/acpica/utuuid.c +++ b/drivers/acpi/acpica/utuuid.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 49c873c68756..0929187bdce0 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c index 88ef77f3cf88..306e785f9418 100644 --- a/drivers/acpi/acpica/utxferror.c +++ b/drivers/acpi/acpica/utxferror.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index b1fd6886e439..083a76891889 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/acpi/acpica/utxfmutex.c b/drivers/acpi/acpica/utxfmutex.c index 2a0f9e04d3a4..f2606af3364c 100644 --- a/drivers/acpi/acpica/utxfmutex.c +++ b/drivers/acpi/acpica/utxfmutex.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h index d5ec6c87810f..6b040f4ddfab 100644 --- a/include/acpi/acbuffer.h +++ b/include/acpi/acbuffer.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h index 5a0a3e5daf85..03aacfb3e98b 100644 --- a/include/acpi/acconfig.h +++ b/include/acpi/acconfig.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h index 8b06e4c1dd5d..11c3a011dcbf 100644 --- a/include/acpi/acexcep.h +++ b/include/acpi/acexcep.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h index 7461327e14e4..273de709495c 100644 --- a/include/acpi/acnames.h +++ b/include/acpi/acnames.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h index 1baae6edda89..9318a87ee39a 100644 --- a/include/acpi/acoutput.h +++ b/include/acpi/acoutput.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acpi.h b/include/acpi/acpi.h index a08e55a263c9..b0bb30ebb807 100644 --- a/include/acpi/acpi.h +++ b/include/acpi/acpi.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 03b3e6d405ff..0bc78df66d4b 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -7,7 +7,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 5dd21bc18ce6..f81e530ae529 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h index 0b75e01212c7..ebe242638591 100644 --- a/include/acpi/acrestyp.h +++ b/include/acpi/acrestyp.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index bee19d8170c5..d4081fef1095 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 29e79370641d..b80b0e6dabc5 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index ecff62405f17..f06d75e5fa54 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h index 5480cb2236bf..440ca8104b43 100644 --- a/include/acpi/actbl3.h +++ b/include/acpi/actbl3.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 401705df516d..453cebb430f6 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h index 5f8cc1fa3278..ad74dc51d5b7 100644 --- a/include/acpi/platform/acenv.h +++ b/include/acpi/platform/acenv.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/platform/acenvex.h b/include/acpi/platform/acenvex.h index 2b612384c994..71e5ec5b07a3 100644 --- a/include/acpi/platform/acenvex.h +++ b/include/acpi/platform/acenvex.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h index 384875da3713..f54de0a63558 100644 --- a/include/acpi/platform/acgcc.h +++ b/include/acpi/platform/acgcc.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 1ba7c190c2cc..74ba46c8157a 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h index 568d4b886712..acedc3f026de 100644 --- a/include/acpi/platform/aclinuxex.h +++ b/include/acpi/platform/aclinuxex.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c index f4b953354ff7..eec688041500 100644 --- a/tools/power/acpi/common/cmfsize.c +++ b/tools/power/acpi/common/cmfsize.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/common/getopt.c b/tools/power/acpi/common/getopt.c index 2f0f34a36db4..5da129e10aa2 100644 --- a/tools/power/acpi/common/getopt.c +++ b/tools/power/acpi/common/getopt.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/os_specific/service_layers/oslibcfs.c b/tools/power/acpi/os_specific/service_layers/oslibcfs.c index c13ff9c51d74..b51e40a9a120 100644 --- a/tools/power/acpi/os_specific/service_layers/oslibcfs.c +++ b/tools/power/acpi/os_specific/service_layers/oslibcfs.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c index 0dc2485dedf5..92f1fd700344 100644 --- a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c +++ b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/os_specific/service_layers/osunixdir.c b/tools/power/acpi/os_specific/service_layers/osunixdir.c index 733f9e490fc4..e153fcb12b1a 100644 --- a/tools/power/acpi/os_specific/service_layers/osunixdir.c +++ b/tools/power/acpi/os_specific/service_layers/osunixdir.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/os_specific/service_layers/osunixmap.c b/tools/power/acpi/os_specific/service_layers/osunixmap.c index 99b47b6194a3..3853a7350440 100644 --- a/tools/power/acpi/os_specific/service_layers/osunixmap.c +++ b/tools/power/acpi/os_specific/service_layers/osunixmap.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/os_specific/service_layers/osunixxf.c b/tools/power/acpi/os_specific/service_layers/osunixxf.c index 7ccb073f8316..6858c0893c91 100644 --- a/tools/power/acpi/os_specific/service_layers/osunixxf.c +++ b/tools/power/acpi/os_specific/service_layers/osunixxf.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/tools/acpidump/acpidump.h b/tools/power/acpi/tools/acpidump/acpidump.h index a2d37d610639..84bdef0136cb 100644 --- a/tools/power/acpi/tools/acpidump/acpidump.h +++ b/tools/power/acpi/tools/acpidump/acpidump.h @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c index 24d32968802d..c736adf5fb55 100644 --- a/tools/power/acpi/tools/acpidump/apdump.c +++ b/tools/power/acpi/tools/acpidump/apdump.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c index d470046a6d81..8f2fe168228e 100644 --- a/tools/power/acpi/tools/acpidump/apfiles.c +++ b/tools/power/acpi/tools/acpidump/apfiles.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c index 853b4da22c3e..d0ba6535f5af 100644 --- a/tools/power/acpi/tools/acpidump/apmain.c +++ b/tools/power/acpi/tools/acpidump/apmain.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2014, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without -- cgit v1.2.3 From 0d0988af81ac809b30f818f0c0f065327ff6423b Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:03 +0800 Subject: ACPICA: Events: Introduce ACPI_GPE_DISPATCH_RAW_HANDLER to fix 2 issues for the current GPE APIs ACPICA commit 199cad16530a45aea2bec98e528866e20c5927e1 Since whether the GPE should be disabled/enabled/cleared should only be determined by the GPE driver's state machine: 1. GPE should be disabled if the driver wants to switch to the GPE polling mode when a GPE storm condition is indicated and should be enabled if the driver wants to switch back to the GPE interrupt mode when all of the storm conditions are cleared. The conditions should be protected by the driver's specific lock. 2. GPE should be enabled if the driver has accepted more than one request and should be disabled if the driver has completed all of the requests. The request count should be protected by the driver's specific lock. 3. GPE should be cleared either when the driver is about to handle an edge triggered GPE or when the driver has completed to handle a level triggered GPE. The handling code should be protected by the driver's specific lock. Thus the GPE enabling/disabling/clearing operations are likely to be performed with the driver's specific lock held while we currently cannot do this. This is because: 1. We have the acpi_gbl_gpe_lock held before invoking the GPE driver's handler. Driver's specific lock is likely to be held inside of the handler, thus we can see some dead lock issues due to the reversed locking order or recursive locking. In order to solve such dead lock issues, we need to unlock the acpi_gbl_gpe_lock before invoking the handler. BZ 1100. 2. Since GPE disabling/enabling/clearing should be determined by the GPE driver's state machine, we shouldn't perform such operations inside of ACPICA for a GPE handler to mess up the driver's state machine. BZ 1101. Originally this patch includes a logic to flush GPE handlers, it is dropped due to the following reasons: 1. This is a different issue; 2. Linux OSL has fixed this by flushing SCI in acpi_os_wait_events_complete(). We will pick up this topic when the Linux OSL fix turns out to be not sufficient. Note that currently the internal operations and the acpi_gbl_gpe_lock are also used by ACPI_GPE_DISPATCH_METHOD and ACPI_GPE_DISPATCH_NOTIFY. In order not to introduce regressions, we add one ACPI_GPE_DISPATCH_RAW_HANDLER type to be distiguished from ACPI_GPE_DISPATCH_HANDLER. For which the acpi_gbl_gpe_lock is unlocked before invoking the GPE handler and the internal enabling/disabling operations are bypassed to allow drivers to perform them at a proper position using the GPE APIs and ACPI_GPE_DISPATCH_RAW_HANDLER users should invoke acpi_set_gpe() instead of acpi_enable_gpe()/acpi_disable_gpe() to bypass the internal GPE clearing code in acpi_enable_gpe(). Lv Zheng. Known issues: 1. Edge-triggered GPE lost for frequent enablings On some buggy silicon platforms, GPE enable line may not be directly wired to the GPE trigger line. In that case, when GPE enabling is frequently performed for edge-triggered GPEs, GPE status may stay set without being triggered. This patch may maginify this problem as it allows GPE enabling to be parallel performed during the process the GPEs are handled. This is an existing issue, because: 1. For task context: Current ACPI_GPE_DISPATCH_METHOD practices have proven that this isn't a real issue - we can re-enable edge-triggered GPE in a work queue where the GPE status bit might already be set. 2. For IRQ context: This can even happen when the GPE enabling occurs before returning from the GPE handler and after unlocking the GPE lock. Thus currently no code is included to protect this. Link: https://github.com/acpica/acpica/commit/199cad16 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 52 +++++++++++++++--- drivers/acpi/acpica/evgpeblk.c | 2 + drivers/acpi/acpica/evgpeinit.c | 6 ++- drivers/acpi/acpica/evgpeutil.c | 6 ++- drivers/acpi/acpica/evxface.c | 115 +++++++++++++++++++++++++++++++++++----- include/acpi/acpixf.h | 8 +++ include/acpi/actypes.h | 11 ++-- 7 files changed, 171 insertions(+), 29 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 836c79b8cd1d..5ed064e8673c 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -332,6 +332,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) struct acpi_gpe_register_info *gpe_register_info; struct acpi_gpe_event_info *gpe_event_info; u32 gpe_number; + struct acpi_gpe_handler_info *gpe_handler_info; u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; u8 enabled_status_byte; u32 status_reg; @@ -455,14 +456,49 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list) acpi_gbl_global_event_handler_context); } - /* - * Found an active GPE. Dispatch the event to a handler - * or method. - */ - int_status |= - acpi_ev_gpe_dispatch(gpe_device, - gpe_event_info, - gpe_number); + /* Found an active GPE */ + + if (ACPI_GPE_DISPATCH_TYPE + (gpe_event_info->flags) == + ACPI_GPE_DISPATCH_RAW_HANDLER) { + + /* Dispatch the event to a raw handler */ + + gpe_handler_info = + gpe_event_info->dispatch. + handler; + + /* + * There is no protection around the namespace node + * and the GPE handler to ensure a safe destruction + * because: + * 1. The namespace node is expected to always + * exist after loading a table. + * 2. The GPE handler is expected to be flushed by + * acpi_os_wait_events_complete() before the + * destruction. + */ + acpi_os_release_lock + (acpi_gbl_gpe_lock, flags); + int_status |= + gpe_handler_info-> + address(gpe_device, + gpe_number, + gpe_handler_info-> + context); + flags = + acpi_os_acquire_lock + (acpi_gbl_gpe_lock); + } else { + /* + * Dispatch the event to a standard handler or + * method. + */ + int_status |= + acpi_ev_gpe_dispatch + (gpe_device, gpe_event_info, + gpe_number); + } } } } diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index ce2a7cf3a23f..e0f24c504513 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -478,6 +478,8 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, ACPI_GPE_DISPATCH_NONE) || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == ACPI_GPE_DISPATCH_HANDLER) + || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_RAW_HANDLER) || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { continue; } diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index 76705082b3db..8840296d5b20 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -401,8 +401,10 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle, return_ACPI_STATUS(AE_OK); } - if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_HANDLER) { + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_HANDLER) || + (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_RAW_HANDLER)) { /* If there is already a handler, ignore this GPE method */ diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index c369b1997632..3a958f3612fe 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -324,8 +324,10 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, ACPI_GPE_REGISTER_WIDTH) + j]; - if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_HANDLER) { + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_HANDLER) || + (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_RAW_HANDLER)) { /* Delete an installed handler block */ diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 6d04ae944bda..81f2d9e87fad 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -51,6 +51,16 @@ #define _COMPONENT ACPI_EVENTS ACPI_MODULE_NAME("evxface") +#if (!ACPI_REDUCED_HARDWARE) +/* Local prototypes */ +static acpi_status +acpi_ev_install_gpe_handler(acpi_handle gpe_device, + u32 gpe_number, + u32 type, + u8 is_raw_handler, + acpi_gpe_handler address, void *context); + +#endif /******************************************************************************* @@ -76,6 +86,7 @@ ACPI_MODULE_NAME("evxface") * handlers. * ******************************************************************************/ + acpi_status acpi_install_notify_handler(acpi_handle device, u32 handler_type, @@ -717,32 +728,37 @@ ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler) /******************************************************************************* * - * FUNCTION: acpi_install_gpe_handler + * FUNCTION: acpi_ev_install_gpe_handler * * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT * defined GPEs) * gpe_number - The GPE number within the GPE block * type - Whether this GPE should be treated as an * edge- or level-triggered interrupt. + * is_raw_handler - Whether this GPE should be handled using + * the special GPE handler mode. * address - Address of the handler * context - Value passed to the handler on each GPE * * RETURN: Status * - * DESCRIPTION: Install a handler for a General Purpose Event. + * DESCRIPTION: Internal function to install a handler for a General Purpose + * Event. * ******************************************************************************/ -acpi_status -acpi_install_gpe_handler(acpi_handle gpe_device, - u32 gpe_number, - u32 type, acpi_gpe_handler address, void *context) +static acpi_status +acpi_ev_install_gpe_handler(acpi_handle gpe_device, + u32 gpe_number, + u32 type, + u8 is_raw_handler, + acpi_gpe_handler address, void *context) { struct acpi_gpe_event_info *gpe_event_info; struct acpi_gpe_handler_info *handler; acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE(acpi_install_gpe_handler); + ACPI_FUNCTION_TRACE(ev_install_gpe_handler); /* Parameter validation */ @@ -775,8 +791,10 @@ acpi_install_gpe_handler(acpi_handle gpe_device, /* Make sure that there isn't a handler there already */ - if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_HANDLER) { + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_HANDLER) || + (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == + ACPI_GPE_DISPATCH_RAW_HANDLER)) { status = AE_ALREADY_EXISTS; goto free_and_exit; } @@ -817,7 +835,10 @@ acpi_install_gpe_handler(acpi_handle gpe_device, gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); - gpe_event_info->flags |= (u8)(type | ACPI_GPE_DISPATCH_HANDLER); + gpe_event_info->flags |= + (u8)(type | + (is_raw_handler ? ACPI_GPE_DISPATCH_RAW_HANDLER : + ACPI_GPE_DISPATCH_HANDLER)); acpi_os_release_lock(acpi_gbl_gpe_lock, flags); @@ -831,8 +852,76 @@ free_and_exit: goto unlock_and_exit; } +/******************************************************************************* + * + * FUNCTION: acpi_install_gpe_handler + * + * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT + * defined GPEs) + * gpe_number - The GPE number within the GPE block + * type - Whether this GPE should be treated as an + * edge- or level-triggered interrupt. + * address - Address of the handler + * context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a General Purpose Event. + * + ******************************************************************************/ + +acpi_status +acpi_install_gpe_handler(acpi_handle gpe_device, + u32 gpe_number, + u32 type, acpi_gpe_handler address, void *context) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_gpe_handler); + + status = + acpi_ev_install_gpe_handler(gpe_device, gpe_number, type, FALSE, + address, context); + + return_ACPI_STATUS(status); +} + ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler) +/******************************************************************************* + * + * FUNCTION: acpi_install_gpe_raw_handler + * + * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT + * defined GPEs) + * gpe_number - The GPE number within the GPE block + * type - Whether this GPE should be treated as an + * edge- or level-triggered interrupt. + * address - Address of the handler + * context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a General Purpose Event. + * + ******************************************************************************/ +acpi_status +acpi_install_gpe_raw_handler(acpi_handle gpe_device, + u32 gpe_number, + u32 type, acpi_gpe_handler address, void *context) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_gpe_raw_handler); + + status = acpi_ev_install_gpe_handler(gpe_device, gpe_number, type, TRUE, + address, context); + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_install_gpe_raw_handler) + /******************************************************************************* * * FUNCTION: acpi_remove_gpe_handler @@ -881,8 +970,10 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, /* Make sure that a handler is indeed installed */ - if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != - ACPI_GPE_DISPATCH_HANDLER) { + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != + ACPI_GPE_DISPATCH_HANDLER) && + (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != + ACPI_GPE_DISPATCH_RAW_HANDLER)) { status = AE_NOT_EXIST; goto unlock_and_exit; } diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 96e4ef3668d8..d56f5d722138 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -568,6 +568,14 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_gpe_handler address, void *context)) +ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status + acpi_install_gpe_raw_handler(acpi_handle + gpe_device, + u32 gpe_number, + u32 type, + acpi_gpe_handler + address, + void *context)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_remove_gpe_handler(acpi_handle gpe_device, u32 gpe_number, diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 453cebb430f6..b034f1068dfe 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -744,7 +744,7 @@ typedef u32 acpi_event_status; /* * GPE info flags - Per GPE * +-------+-+-+---+ - * | 7:4 |3|2|1:0| + * | 7:5 |4|3|2:0| * +-------+-+-+---+ * | | | | * | | | +-- Type of dispatch:to method, handler, notify, or none @@ -756,14 +756,15 @@ typedef u32 acpi_event_status; #define ACPI_GPE_DISPATCH_METHOD (u8) 0x01 #define ACPI_GPE_DISPATCH_HANDLER (u8) 0x02 #define ACPI_GPE_DISPATCH_NOTIFY (u8) 0x03 -#define ACPI_GPE_DISPATCH_MASK (u8) 0x03 +#define ACPI_GPE_DISPATCH_RAW_HANDLER (u8) 0x04 +#define ACPI_GPE_DISPATCH_MASK (u8) 0x07 #define ACPI_GPE_DISPATCH_TYPE(flags) ((u8) ((flags) & ACPI_GPE_DISPATCH_MASK)) -#define ACPI_GPE_LEVEL_TRIGGERED (u8) 0x04 +#define ACPI_GPE_LEVEL_TRIGGERED (u8) 0x08 #define ACPI_GPE_EDGE_TRIGGERED (u8) 0x00 -#define ACPI_GPE_XRUPT_TYPE_MASK (u8) 0x04 +#define ACPI_GPE_XRUPT_TYPE_MASK (u8) 0x08 -#define ACPI_GPE_CAN_WAKE (u8) 0x08 +#define ACPI_GPE_CAN_WAKE (u8) 0x10 /* * Flags for GPE and Lock interfaces -- cgit v1.2.3 From eb3d80f729e07394685239ddd137fbee5c13a2ea Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:09 +0800 Subject: ACPICA: Events: Introduce acpi_set_gpe()/acpi_finish_gpe() to reduce divergences This can help to reduce source code differences between Linux and ACPICA upstream. Further driver cleanups also require these APIs to eliminate GPE storms. 1. acpi_set_gpe(): An API that driver should invoke in the case it wants to disable/enable IRQ without honoring the reference count implemented in the acpi_disable_gpe() and acpi_enable_gpe(). Note that this API should only be invoked inside a acpi_enable_gpe()/acpi_disable_gpe() pair. 2. acpi_finish_gpe(): Drivers returned ACPI_REENABLE_GPE unset from the GPE handler should use this API instead of invoking acpi_set_gpe()/acpi_enable_gpe() to re-enable the GPE. The GPE APIs can be invoked inside of a GPE handler or in the task context with a driver provided lock held. This driver provided lock is safe to be held in the GPE handler by the driver. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evxfgpe.c | 105 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index b8af53bce74b..caaeb1a7bf4b 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -183,6 +183,68 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number) ACPI_EXPORT_SYMBOL(acpi_disable_gpe) +/******************************************************************************* + * + * FUNCTION: acpi_set_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 + * gpe_number - GPE level within the GPE block + * action - ACPI_GPE_ENABLE or ACPI_GPE_DISABLE + * + * RETURN: Status + * + * DESCRIPTION: Enable or disable an individual GPE. This function bypasses + * the reference count mechanism used in the acpi_enable_gpe and + * acpi_disable_gpe interfaces -- and should be used with care. + * + * Note: Typically used to disable a runtime GPE for short period of time, + * then re-enable it, without disturbing the existing reference counts. This + * is useful, for example, in the Embedded Controller (EC) driver. + * + ******************************************************************************/ +acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) +{ + struct acpi_gpe_event_info *gpe_event_info; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(acpi_set_gpe); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + /* Perform the action */ + + switch (action) { + case ACPI_GPE_ENABLE: + + status = acpi_ev_enable_gpe(gpe_event_info); + break; + + case ACPI_GPE_DISABLE: + + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); + break; + + default: + + status = AE_BAD_PARAMETER; + break; + } + +unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_set_gpe) /******************************************************************************* * @@ -530,6 +592,49 @@ unlock_and_exit: ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) +/******************************************************************************* + * + * FUNCTION: acpi_finish_gpe + * + * PARAMETERS: gpe_device - Namespace node for the GPE Block + * (NULL for FADT defined GPEs) + * gpe_number - GPE level within the GPE block + * + * RETURN: Status + * + * DESCRIPTION: Clear and conditionally reenable a GPE. This completes the GPE + * processing. Intended for use by asynchronous host-installed + * GPE handlers. The GPE is only reenabled if the enable_for_run bit + * is set in the GPE info. + * + ******************************************************************************/ +acpi_status acpi_finish_gpe(acpi_handle gpe_device, u32 gpe_number) +{ + struct acpi_gpe_event_info *gpe_event_info; + acpi_status status; + acpi_cpu_flags flags; + + ACPI_FUNCTION_TRACE(acpi_finish_gpe); + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit; + } + + status = acpi_ev_finish_gpe(gpe_event_info); + +unlock_and_exit: + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_finish_gpe) + /****************************************************************************** * * FUNCTION: acpi_disable_all_gpes -- cgit v1.2.3 From 2eedd3d8398b266ee8e846ded03218bb6a00e2c1 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:15 +0800 Subject: ACPICA: Events: Enable APIs to allow interrupt/polling adaptive request based GPE handling model ACPICA commit da9a83e1a845f2d7332bdbc0632466b2595e5424 For acpi_set_gpe()/acpi_enable_gpe(), our target is to purify them to be APIs that can be used for various GPE handling models, so we need them to be pure GPE enabling APIs. GPE enabling/disabling has 2 use cases: 1. Driver may permanently enable/disable GPEs according to the usage counts. 1. When upper layers (the users of the driver) submit requests to the driver, it means they care about the underlying hardware. GPE need to be enabled for the first request submission and disabled for the last request completion. 2. When the GPE is shared between 2+ silicon logics. GPE need to be enabled for either silicon logic's driver and disabled when all of the drivers are not started. For these cases, acpi_enable_gpe()/acpi_disable_gpe() should be used. When the usage count is increased from 0 to 1, the GPE is enabled and it is disabled when the usage count is decrased from 1 to 0. 2. Driver may temporarily disables the GPE to enter an GPE polling mode and wants to re-enable it later. 1. Prevent GPE storming: when a driver cannot fully solve the condition that triggered the GPE in the GPE context, in order not to trigger GPE storm, driver has to disable GPE to switch into the polling mode and re-enables it in the non interrupt context after the storming condition is cleared. 2. Meet throughput requirement: some IO drivers need to poll hardware again and again until nothing indicated instead of just handling once for one interruption, this need to be done in the polling mode or the IO flood may prevent the GPE handler from returning. 3. Meet realtime requirement: in order not to block CPU to handle higher realtime prioritized GPEs, lower priority GPEs can be handled in the polling mode. For these cases, acpi_set_gpe() should be used to switch to/from the polling mode. This patch adds unconditional GPE enabling support into acpi_set_gpe() so that this API can be used by the drivers to switch back from the GPE polling mode unconditionally. Originally this function includes GPE clearing logic in it. First, the GPE clearing is typically used in the GPE handling code to: 1. Acknowledge the GPE when we know there is an edge triggered GPE raised and is about to handle it, otherwise the unexpected clearing may lead to a GPE loss; 2. Issue actions after we have handled a level triggered GPE, otherwise the unexpected clearing may trigger unwanted OSPM actions to the hardware (for example, clocking in out-dated write FIFO data). Thus the GPE clearing is not suitable to be used in the GPE enabling APIs. Second, the combination of acknowledging and enabling may also not be expected by the hardware drivers. For GPE clearing, we have a seperate API acpi_clear_gpe(). There are cases drivers do want the 2 operations to be split. So splitting these 2 operations could facilitates drivers the maximum possibilities to achieve success. For a combined one, we already have acpi_finish_gpe() ready to be invoked. Given the fact that drivers should complete all outstanding requests before putting themselves into the sleep states, as this API is executed for outstanding requests, it should also have nothing to do with the "RUN"/"WAKE" distinguishing. That's why the acpi_set_gpe(ACPI_GPE_ENABLE) should not be implemented by acpi_hw_low_set_gpe(ACPI_GPE_CONDITIONAL_ENABLE). This patch thus converts acpi_set_gpe(ACPI_GPE_ENABLE) into acpi_hw_low_set_gpe(ACPI_GPE_ENABLE) to achieve a seperate GPE enabling API. Drivers then are encouraged to use this API when they need to switch to/from the GPE polling mode. Note that the acpi_set_gpe()/acpi_finish_gpe() should be first introduced to Linux using a divergence reduction patch before sending a linuxized version of this patch. Lv Zheng. Link: https://github.com/acpica/acpica/commit/da9a83e1 Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evxfgpe.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index caaeb1a7bf4b..70eb47e3d724 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -194,12 +194,21 @@ ACPI_EXPORT_SYMBOL(acpi_disable_gpe) * RETURN: Status * * DESCRIPTION: Enable or disable an individual GPE. This function bypasses - * the reference count mechanism used in the acpi_enable_gpe and - * acpi_disable_gpe interfaces -- and should be used with care. - * - * Note: Typically used to disable a runtime GPE for short period of time, - * then re-enable it, without disturbing the existing reference counts. This - * is useful, for example, in the Embedded Controller (EC) driver. + * the reference count mechanism used in the acpi_enable_gpe(), + * acpi_disable_gpe() interfaces. + * This API is typically used by the GPE raw handler mode driver + * to switch between the polling mode and the interrupt mode after + * the driver has enabled the GPE. + * The APIs should be invoked in this order: + * acpi_enable_gpe() <- Ensure the reference count > 0 + * acpi_set_gpe(ACPI_GPE_DISABLE) <- Enter polling mode + * acpi_set_gpe(ACPI_GPE_ENABLE) <- Leave polling mode + * acpi_disable_gpe() <- Decrease the reference count + * + * Note: If a GPE is shared by 2 silicon components, then both the drivers + * should support GPE polling mode or disabling the GPE for long period + * for one driver may break the other. So use it with care since all + * firmware _Lxx/_Exx handlers currently rely on the GPE interrupt mode. * ******************************************************************************/ acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) @@ -225,7 +234,7 @@ acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) switch (action) { case ACPI_GPE_ENABLE: - status = acpi_ev_enable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE); break; case ACPI_GPE_DISABLE: -- cgit v1.2.3 From ca37bfdfbc8d0a3ec73e4b97bb26dcfa51d515aa Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:22 +0800 Subject: ACPI / EC: Fix several GPE handling issues by deploying ACPI_GPE_DISPATCH_RAW_HANDLER mode. This patch switches EC driver into ACPI_GPE_DISPATCH_RAW_HANDLER mode where the GPE lock is not held for acpi_ec_gpe_handler() and the ACPICA internal GPE enabling/disabling/clearing operations are bypassed so that further improvements are possible with the GPE APIs. There are 2 strong reasons for deploying raw GPE handler mode in the EC driver: 1. Some hardware logics can control their interrupts via their own registers, so their interrupts can be disabled/enabled/acknowledged without using the super IRQ controller provided functions. While there is no mean (EC commands) for the EC driver to achieve this. 2. During suspending, the EC driver is still working for a while to complete the platform firmware provided functionailities using ec_poll() after all GPEs are disabled (see acpi_ec_block_transactions()), which means the EC driver will drive the EC GPE out of the GPE core's control. Without deploying the raw GPE handler mode, we can see many races between the EC driver and the GPE core due to the above restrictions: 1. There is a race condition due to ACPICA internal GPE disabling/clearing/enabling logics in acpi_ev_gpe_dispatch(): Orignally EC GPE is disabled (EN=0), cleared (STS=0) before invoking a GPE handler and re-enabled (EN=1) after invoking a GPE handler in acpi_ev_gpe_dispatch(). When re-enabling appears, GPE may be flagged (STS=1). ================================================================= (event pending A) ================================================================= acpi_ev_gpe_dispatch() ec_poll() EN=0 STS=0 acpi_ec_gpe_handler() ***************************************************************** (event handling A) Lock(EC) advance_transaction() EC_SC read ================================================================= (event pending B) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** ***************************************************************** (event handling B) Lock(EC) advance_transaction() EC_SC read ================================================================= (event pending C) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** EN=1 This race condition is the root cause of different issues on different silicon variations. A. Silicon variation A: On some platforms, GPE will be triggered due to "writing 1 to EN when STS=1". This is because both EN and STS lines are wired to the GPE trigger line. 1. Issue 1: We can see no-op acpi_ec_gpe_handler() invoked on such platforms. This is because: a. event pending B: An event can arrive after ACPICA's GPE clearing performed in acpi_ev_gpe_dispatch(), this event may fail to be detected by EC_SC read that is performed before its arrival; b. event handling B: The event can be handled in ec_poll() because EC lock is released after acpi_ec_gpe_handler() invocation; c. There is no code in ec_poll() to clear STS but the GPE can still be triggered by the EN=1 write performed in acpi_ev_finish_gpe(), this leads to a no-op EC GPE handler invocation; d. As no-op GPE handler invocations are counted by the EC driver to trigger the command storming conditions, the wrong no-op GPE handler invocations thus can easily trigger wrong command storming conditions. Note 1: If we removed GPE disabling/enabling code from acpi_ev_gpe_dispatch(), we could still see no-op GPE handlers triggered by the event arriving after the GPE clearing and before the GPE handling on both silicon variation A and B. This can only occur if the CPU is very slow (timing slice between STS=0 write and EC_SC read should be short enough before hardware sets another GPE indication). Thus this is very rare and is not what we need to fix. B. Silicon variation B: On other platforms, GPE may not be triggered due to "writing 1 to EN when STS=1". This is because only STS line is wired to the GPE trigger line. 2. Issue 2: We can see GPE loss on such platforms. This is because: a. event pending B vs. event handling A: An event can arrive after ACPICA's GPE handling performed in acpi_ev_gpe_dispatch(), or event pending C vs. event handling B: An event can arrive after Linux's GPE handling performed in ec_poll(), these events may fail to be detected by EC_SC read that is performed before their arrival; b. The GPE cannot be triggered by EN=1 write performed in acpi_ev_finish_gpe(); c. If no polling mechanism is implemented in the driver for the pending event (for example, SCI_EVT), this event is lost due to no GPE being triggered. Note 2: On most platforms, there might be another rule that GPE may not be triggered due to "writing 1 to STS when STS=1 and EN=1". Then on silicon variation B, an even worse case is if the issue 2 event loss happens, further events may never trigger GPE again on such platforms due to being blocked by the current STS=1. Unless someone clears STS, all events have to be polled. 2. There is a race condition due to lacking in GPE status checking in EC driver: Originally, GPE status is checked in ACPICA core but not checked in the GPE handler. Thus since the status checking and handling is not locked, it can be interrupted by another handling path. ================================================================= (event pending A) ================================================================= acpi_ev_gpe_detect() ec_poll() if (EN==1 && STS==1) ***************************************************************** (event handling A) Lock(EC) advance_transaction() EC_SC read EC_SC handled Unlock(EC) ***************************************************************** acpi_ev_gpe_dispatch() EN=0 STS=0 acpi_ec_gpe_handler() ***************************************************************** (event handling B) Lock(EC) advance_transaction() EC_SC read Unlock(EC) ***************************************************************** 3. Issue 3: We can see no-op acpi_ec_gpe_handler() invoked on both silicon variation A and B. This is because: a. event pending A: An event can arrive to trigger an EC GPE and ACPICA checks it and is about to invoke the EC GPE handler; b. event handling A: The event can be handled in ec_poll() because EC lock is not held after the GPE status checking; c. event handling B: Then when the EC GPE handler is invoked, it becomes a no-op GPE handler invocation. d. As no-op GPE handler invocations are counted by the EC driver to trigger the command storming conditions, the wrong no-op GPE handler invocations thus can easily trigger wrong command storming conditions. Note 3: This no-op GPE handler invocation is rare because the time between the IRQ arrival and the acpi_ec_gpe_handler() invocation is less than the timeout value waited in ec_poll(). So most of the no-op GPE handler invocations are caused by the reason described in issue 1. 3. There is a race condition due to ACPICA internal GPE clearing logic in acpi_enable_gpe(): During runtime, acpi_enable_gpe() can be invoked by the EC storming prevention code. When it is invoked, GPE may be flagged (STS=1). ================================================================= (event pending A) ================================================================= acpi_ev_gpe_dispatch() acpi_ec_transaction() EN=0 STS=0 acpi_ec_gpe_handler() ***************************************************************** (event handling A) Lock(EC) advance_transaction() EC_SC read EC_SC handled Unlock(EC) ***************************************************************** EN=1 ? Lock(EC) Unlock(EC) ================================================================= (event pending B) ================================================================= acpi_enable_gpe() STS=0 EN=1 4. Issue 4: We can see GPE loss on both silicon variation A and B platforms. This is because: a. event pending B: An event can arrive right before ACPICA's GPE clearing performed in acpi_enable_gpe(); b. If the GPE is cleared when GPE is disabled, then EN=1 write in acpi_enable_gpe() cannot trigger this GPE; c. If no polling mechanism is implemented in the driver for this event (for example, SCI_EVT), this event is lost due to no GPE being triggered. Note 4: Currently we don't have this issue, but after we switch the EC driver into ACPI_GPE_DISPATCH_RAW_HANDLER mode, we need to take care of handling this because the EN=1 write in acpi_ev_gpe_dispatch() will be abandoned. There might be more race issues for the current GPE handler usages. This is because the EC IRQ's enabling/disabling/checking/clearing/handling operations should be locked by a single lock that is under the EC driver's control to achieve the serialization. Which means we need to invoke GPE APIs with EC driver's lock held and all ACPICA internal GPE operations related to the GPE handler should be abandoned. Invoking GPE APIs inside of the EC driver lock and bypassing ACPICA internal GPE operations requires the ACPI_GPE_DISPATCH_RAW_HANDLER mode where the same lock used by the APIs are released prior than invoking the handlers. Otherwise, we can see dead locks due to circular locking dependencies (see Reference below). This patch then switches the EC driver into the ACPI_GPE_DISPATCH_RAW_HANDLER mode so that it can perform correct GPE operations using the GPE APIs: 1. Bypasses EN modifications performed in acpi_ev_gpe_dispatch() by using acpi_install_gpe_raw_handler() and invoking all GPE APIs with EC spin lock held. This can fix issue 1 as it makes a non frequent GPE enabling/disabling environment. 2. Bypasses STS clearing performed in acpi_enable_gpe() by replacing acpi_enable_gpe()/acpi_disable_gpe() with acpi_set_gpe(). This can fix issue 4. And this can also help to fix issue 1 as it makes a no sudden GPE clearing environment when GPE is frequently enabled/disabled. 3. Ensures STS acknowledged before handling by invoking acpi_clear_gpe() in advance_transaction(). This can finally fix issue 1 even in a frequent GPE enabling/disabling environment. And this can also finally fix issue 3 when issue 2 is fixed. Note 3: GPE clearing is edge triggered W1C, which means we can clear it right before handling it. Since all EC GPE indications are handled in advance_transaction() by previous commits, we can now move GPE clearing into it to implement the correct GPE clearing. Note 4: We can use acpi_set_gpe() which is not shared GPE safer instead of acpi_enable_gpe()/acpi_disable_gpe() because EC GPE is not shared by other hardware, which is mentioned in the ACPI specification 5.0, 12.6 Interrupt Model: "OSPM driver treats this as an edge event (the EC SCI cannot be shared)". So we can stop using shared GPE safer APIs acpi_enable_gpe()/acpi_disable_gpe() in the EC driver. Otherwise cleanups need to be made in acpi_ev_enable_gpe() to bypass the GPE clearing logic before keeping acpi_enable_gpe(). This patch also invokes advance_transaction() when GPE is re-enabled in the task context which: 1. Ensures EN=1 can trigger GPE by checking and handling EC status register right after EN=1 writes. This can fix issue 2. After applying this patch, without frequent GPE enablings considered: ================================================================= (event pending A) ================================================================= acpi_ec_gpe_handler() ec_poll() ***************************************************************** (event handling A) Lock(EC) advance_transaction() if STS==1 STS=0 EC_SC read ================================================================= (event pending B) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** ***************************************************************** (event handling B) Lock(EC) advance_transaction() if STS==1 STS=0 EC_SC read ================================================================= (event pending C) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** The event pending for issue 1 (event pending B) can arrive as a next GPE due to the previous IRQ context STS=0 write. And if it is handled by ec_poll() (event handling B), as it is also acknowledged by ec_poll(), the event pending for issue 2 (event pending C) can properly arrive as a next GPE after the task context STS=0 write. So no GPE will be lost and never triggered due to GPE clearing performed in the wrong position. And since all GPE handling is performed after a locked GPE status checking, we can hardly see no-op GPE handler invocations due to issue 1 and 3. We may still see no-op GPE handler invocations due to "Note 1", but as it is inevitable, it needn't be fixed. After applying this patch, with frequent GPE enablings considered: ================================================================= (event pending A) ================================================================= acpi_ec_gpe_handler() acpi_ec_transaction() ***************************************************************** (event handling A) Lock(EC) advance_transaction() if STS==1 STS=0 EC_SC read ================================================================= (event pending B) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** ***************************************************************** (event handling B) Lock(EC) EN=1 if STS==1 advance_transaction() if STS==1 STS=0 EC_SC read ================================================================= (event pending C) ================================================================= EC_SC handled Unlock(EC) ***************************************************************** The event pending for issue 2 can be manually handled by advance_transaction(). And after the STS=0 write performed in the manual triggered advance_transaction(), GPE can always arrive. So no GPE will be lost due to frequent GPE disabling/enabling performed in the driver like issue 4. Note 5: It's ideally when EN=1 write occurred, an IRQ thread should be woken up to handle the GPE when the GPE was raised. But this requires the IRQ thread to contain the poller code for all EC GPE indications, while currently some of the indications are handled in the user tasks. It then is very hard for the code to determine whether a user task should be invoked or the poller work item should be scheduled. So we have to invoke advance_transaction() directly now and it leaves us such a restriction for the GPE re-enabling: it must be performed in the task context to avoid starving the GPEs. As a conclusion: we can see the EC GPE is always handled in serial after deploying the raw GPE handler mode: Lock(EC) if (STS==1) STS=0 EC_SC read EC_SC handled Unlock(EC) The EC driver specific lock is responsible to make the EC GPE handling processes serialized so that EC can handle its GPE from both IRQ and task contexts and the next IRQ can be ensured to arrive after this process. Note 6: We have many EC_FLAGS_MSI qurik users in the current driver. They all seem to be suffering from unexpected GPE triggering source lost. And they are false root caused to a timing issue. Since EC communication protocol has already flow control defined, timing shouldn't be the root cause, while this fix might be fixing the root cause of the old bugs. Link: https://lkml.org/lkml/2014/11/4/974 Link: https://lkml.org/lkml/2014/11/18/316 Link: https://www.spinics.net/lists/linux-acpi/msg54340.html Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 73 insertions(+), 8 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index c385606bbceb..2540870e89f7 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -121,6 +121,7 @@ struct transaction { }; static int acpi_ec_query(struct acpi_ec *ec, u8 *data); +static void advance_transaction(struct acpi_ec *ec); struct acpi_ec *boot_ec, *first_ec; EXPORT_SYMBOL(first_ec); @@ -132,7 +133,7 @@ static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ static int EC_FLAGS_QUERY_HANDSHAKE; /* Needs QR_EC issued when SCI_EVT set */ /* -------------------------------------------------------------------------- - * Transaction Management + * EC Registers * -------------------------------------------------------------------------- */ static inline u8 acpi_ec_read_status(struct acpi_ec *ec) @@ -191,6 +192,64 @@ static const char *acpi_ec_cmd_string(u8 cmd) #define acpi_ec_cmd_string(cmd) "UNDEF" #endif +/* -------------------------------------------------------------------------- + * GPE Registers + * -------------------------------------------------------------------------- */ + +static inline bool acpi_ec_is_gpe_raised(struct acpi_ec *ec) +{ + acpi_event_status gpe_status = 0; + + (void)acpi_get_gpe_status(NULL, ec->gpe, &gpe_status); + return (gpe_status & ACPI_EVENT_FLAG_SET) ? true : false; +} + +static inline void acpi_ec_enable_gpe(struct acpi_ec *ec, bool open) +{ + if (open) + acpi_enable_gpe(NULL, ec->gpe); + else + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE); + if (acpi_ec_is_gpe_raised(ec)) { + /* + * On some platforms, EN=1 writes cannot trigger GPE. So + * software need to manually trigger a pseudo GPE event on + * EN=1 writes. + */ + pr_debug("***** Polling quirk *****\n"); + advance_transaction(ec); + } +} + +static inline void acpi_ec_disable_gpe(struct acpi_ec *ec, bool close) +{ + if (close) + acpi_disable_gpe(NULL, ec->gpe); + else + acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE); +} + +static inline void acpi_ec_clear_gpe(struct acpi_ec *ec) +{ + /* + * GPE STS is a W1C register, which means: + * 1. Software can clear it without worrying about clearing other + * GPEs' STS bits when the hardware sets them in parallel. + * 2. As long as software can ensure only clearing it when it is + * set, hardware won't set it in parallel. + * So software can clear GPE in any contexts. + * Warning: do not move the check into advance_transaction() as the + * EC commands will be sent without GPE raised. + */ + if (!acpi_ec_is_gpe_raised(ec)) + return; + acpi_clear_gpe(NULL, ec->gpe); +} + +/* -------------------------------------------------------------------------- + * Transaction Management + * -------------------------------------------------------------------------- */ + static void acpi_ec_submit_query(struct acpi_ec *ec) { if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { @@ -227,6 +286,12 @@ static void advance_transaction(struct acpi_ec *ec) pr_debug("===== %s (%d) =====\n", in_interrupt() ? "IRQ" : "TASK", smp_processor_id()); + /* + * By always clearing STS before handling all indications, we can + * ensure a hardware STS 0->1 change after this clearing can always + * trigger a GPE interrupt. + */ + acpi_ec_clear_gpe(ec); status = acpi_ec_read_status(ec); t = ec->curr; if (!t) @@ -378,7 +443,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) /* disable GPE during transaction if storm is detected */ if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { /* It has to be disabled, so that it doesn't trigger. */ - acpi_disable_gpe(NULL, ec->gpe); + acpi_ec_disable_gpe(ec, false); } status = acpi_ec_transaction_unlocked(ec, t); @@ -386,7 +451,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { msleep(1); /* It is safe to enable the GPE outside of the transaction. */ - acpi_enable_gpe(NULL, ec->gpe); + acpi_ec_enable_gpe(ec, false); } else if (t->irq_count > ec_storm_threshold) { pr_info("GPE storm detected(%d GPEs), " "transactions will use polling mode\n", @@ -693,7 +758,7 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, spin_lock_irqsave(&ec->lock, flags); advance_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); - return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; + return ACPI_INTERRUPT_HANDLED; } /* -------------------------------------------------------------------------- @@ -812,13 +877,13 @@ static int ec_install_handlers(struct acpi_ec *ec) if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) return 0; - status = acpi_install_gpe_handler(NULL, ec->gpe, + status = acpi_install_gpe_raw_handler(NULL, ec->gpe, ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, ec); if (ACPI_FAILURE(status)) return -ENODEV; - acpi_enable_gpe(NULL, ec->gpe); + acpi_ec_enable_gpe(ec, true); status = acpi_install_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, @@ -833,7 +898,7 @@ static int ec_install_handlers(struct acpi_ec *ec) pr_err("Fail in evaluating the _REG object" " of EC device. Broken bios is suspected.\n"); } else { - acpi_disable_gpe(NULL, ec->gpe); + acpi_ec_disable_gpe(ec, true); acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); return -ENODEV; @@ -848,7 +913,7 @@ static void ec_remove_handlers(struct acpi_ec *ec) { if (!test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) return; - acpi_disable_gpe(NULL, ec->gpe); + acpi_ec_disable_gpe(ec, true); if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler))) pr_err("failed to remove space handler\n"); -- cgit v1.2.3 From 9e295ac14d6a59180beed0735e6a504c2ee87761 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:29 +0800 Subject: ACPI / EC: Reduce ec_poll() by referencing the last register access timestamp. Timeout in the ec_poll() doesn't refer to the last register access time. It thus can win the competition against the acpi_ec_gpe_handler() if a transaction takes longer than 1ms but individual register accesses are less than 1ms. In some cases, it can make the following silicon bug easier to be triggered: GPE EN is not wired to the GPE trigger line, so when GPE STS is already set when 1 is written to GPE EN, no GPE can be triggered. This patch adds register access timestamp reference support for ec_poll() to reduce the number of ec_poll() invocations. Reported-by: Venkat Raghavulu Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 2540870e89f7..e000cf70378b 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -71,6 +71,7 @@ enum ec_command { #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ #define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */ +#define ACPI_EC_UDELAY_POLL 1000 /* Wait 1ms for EC transaction polling */ #define ACPI_EC_CLEAR_MAX 100 /* Maximum number of events to query * when trying to clear the EC */ @@ -118,6 +119,7 @@ struct transaction { u8 wlen; u8 rlen; u8 flags; + unsigned long timestamp; }; static int acpi_ec_query(struct acpi_ec *ec, u8 *data); @@ -155,6 +157,7 @@ static inline u8 acpi_ec_read_data(struct acpi_ec *ec) { u8 x = inb(ec->data_addr); + ec->curr->timestamp = jiffies; pr_debug("EC_DATA(R) = 0x%2.2x\n", x); return x; } @@ -163,12 +166,14 @@ static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command) { pr_debug("EC_SC(W) = 0x%2.2x\n", command); outb(command, ec->command_addr); + ec->curr->timestamp = jiffies; } static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) { pr_debug("EC_DATA(W) = 0x%2.2x\n", data); outb(data, ec->data_addr); + ec->curr->timestamp = jiffies; } #ifdef DEBUG @@ -359,6 +364,7 @@ static void start_transaction(struct acpi_ec *ec) { ec->curr->irq_count = ec->curr->wi = ec->curr->ri = 0; ec->curr->flags = 0; + ec->curr->timestamp = jiffies; advance_transaction(ec); } @@ -370,20 +376,25 @@ static int ec_poll(struct acpi_ec *ec) while (repeat--) { unsigned long delay = jiffies + msecs_to_jiffies(ec_delay); + unsigned long usecs = ACPI_EC_UDELAY_POLL; do { /* don't sleep with disabled interrupts */ if (EC_FLAGS_MSI || irqs_disabled()) { - udelay(ACPI_EC_MSI_UDELAY); + usecs = ACPI_EC_MSI_UDELAY; + udelay(usecs); if (ec_transaction_completed(ec)) return 0; } else { if (wait_event_timeout(ec->wait, ec_transaction_completed(ec), - msecs_to_jiffies(1))) + usecs_to_jiffies(usecs))) return 0; } spin_lock_irqsave(&ec->lock, flags); - advance_transaction(ec); + if (time_after(jiffies, + ec->curr->timestamp + + usecs_to_jiffies(usecs))) + advance_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); } while (time_before(jiffies, delay)); pr_debug("controller reset, restart transaction\n"); -- cgit v1.2.3 From a8d4fc227f312edea06bb4ebbeeb6db89c798e91 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 16:27:35 +0800 Subject: ACPI / EC: Update revision due to raw handler mode. The bug fixes around GPE races have been done to the EC driver by the previous commits. This patch increases the revision to 3 to indicate the behavior differences between the old and the new drivers. The copyright/authorship notices are also updated. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index e000cf70378b..55632539392d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1,8 +1,8 @@ /* - * ec.c - ACPI Embedded Controller Driver (v2.2) + * ec.c - ACPI Embedded Controller Driver (v3) * - * Copyright (C) 2001-2014 Intel Corporation - * Author: 2014 Lv Zheng + * Copyright (C) 2001-2015 Intel Corporation + * Author: 2014, 2015 Lv Zheng * 2006, 2007 Alexey Starikovskiy * 2006 Denis Sadykov * 2004 Luming Yu -- cgit v1.2.3 From 2fad93083e288a7d24bf7284c87f0d80a5a2c599 Mon Sep 17 00:00:00 2001 From: Hanjun Guo Date: Thu, 5 Feb 2015 17:33:14 +0800 Subject: ACPI / table: remove duplicate NULL check for the handler of acpi_table_parse() In acpi_table_parse(), pointer of the table to pass to handler() is checked before handler() called, so remove all the duplicate NULL check in the handler function. CC: Tony Luck CC: Thomas Gleixner Signed-off-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- arch/ia64/kernel/acpi.c | 6 ------ arch/x86/kernel/acpi/boot.c | 16 ++-------------- drivers/acpi/numa.c | 12 ++---------- 3 files changed, 4 insertions(+), 30 deletions(-) (limited to 'drivers/acpi') diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index e795cb848154..2c4498919d3c 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -380,9 +380,6 @@ static void __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) static int __init acpi_parse_madt(struct acpi_table_header *table) { - if (!table) - return -EINVAL; - acpi_madt = (struct acpi_table_madt *)table; acpi_madt_rev = acpi_madt->header.revision; @@ -645,9 +642,6 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table) struct acpi_table_header *fadt_header; struct acpi_table_fadt *fadt; - if (!table) - return -EINVAL; - fadt_header = (struct acpi_table_header *)table; if (fadt_header->revision != 3) return -ENODEV; /* Only deal with ACPI 2.0 FADT */ diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index b9e30daa0881..14d3652ece8d 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -843,13 +843,7 @@ int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base) static int __init acpi_parse_sbf(struct acpi_table_header *table) { - struct acpi_table_boot *sb; - - sb = (struct acpi_table_boot *)table; - if (!sb) { - printk(KERN_WARNING PREFIX "Unable to map SBF\n"); - return -ENODEV; - } + struct acpi_table_boot *sb = (struct acpi_table_boot *)table; sbf_port = sb->cmos_index; /* Save CMOS port */ @@ -863,13 +857,7 @@ static struct resource *hpet_res __initdata; static int __init acpi_parse_hpet(struct acpi_table_header *table) { - struct acpi_table_hpet *hpet_tbl; - - hpet_tbl = (struct acpi_table_hpet *)table; - if (!hpet_tbl) { - printk(KERN_WARNING PREFIX "Unable to map HPET\n"); - return -ENODEV; - } + struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table; if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { printk(KERN_WARNING PREFIX "HPET timers must be located in " diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 24b5476449a1..1333cbdc3ea2 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -177,12 +177,7 @@ static int __init slit_valid(struct acpi_table_slit *slit) static int __init acpi_parse_slit(struct acpi_table_header *table) { - struct acpi_table_slit *slit; - - if (!table) - return -EINVAL; - - slit = (struct acpi_table_slit *)table; + struct acpi_table_slit *slit = (struct acpi_table_slit *)table; if (!slit_valid(slit)) { printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n"); @@ -260,11 +255,8 @@ acpi_parse_memory_affinity(struct acpi_subtable_header * header, static int __init acpi_parse_srat(struct acpi_table_header *table) { - struct acpi_table_srat *srat; - if (!table) - return -EINVAL; + struct acpi_table_srat *srat = (struct acpi_table_srat *)table; - srat = (struct acpi_table_srat *)table; acpi_srat_revision = srat->header.revision; /* Real work done in acpi_table_parse_srat below. */ -- cgit v1.2.3 From 92082a8886f30a1c492a31ac4b5a4966bb64b1a6 Mon Sep 17 00:00:00 2001 From: Ken Xue Date: Fri, 6 Feb 2015 08:27:51 +0800 Subject: ACPI: add AMD ACPI2Platform device support for x86 system This new feature is to interpret AMD specific ACPI device to platform device such as I2C, UART, GPIO found on AMD CZ and later chipsets. It based on example intel LPSS. Now, it can support AMD I2C, UART and GPIO. Signed-off-by: Ken Xue Acked-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki --- arch/x86/Kconfig | 11 ++++ drivers/acpi/Makefile | 2 +- drivers/acpi/acpi_apd.c | 150 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/acpi/internal.h | 2 + drivers/acpi/scan.c | 1 + 5 files changed, 165 insertions(+), 1 deletion(-) create mode 100644 drivers/acpi/acpi_apd.c (limited to 'drivers/acpi') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0dc9d0144a27..3e15cee34aee 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -496,6 +496,17 @@ config X86_INTEL_LPSS things like clock tree (common clock framework) and pincontrol which are needed by the LPSS peripheral drivers. +config X86_AMD_PLATFORM_DEVICE + bool "AMD ACPI2Platform devices support" + depends on ACPI + select COMMON_CLK + select PINCTRL + ---help--- + Select to interpret AMD specific ACPI device to platform device + such as I2C, UART, GPIO found on AMD Carrizo and later chipsets. + I2C and UART depend on COMMON_CLK to set clock. GPIO driver is + implemented under PINCTRL subsystem. + config IOSF_MBI tristate "Intel SoC IOSF Sideband support for SoC platforms" depends on PCI diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index f74317cc1ca9..0071141b6bbc 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -40,7 +40,7 @@ acpi-$(CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC) += processor_pdc.o acpi-y += ec.o acpi-$(CONFIG_ACPI_DOCK) += dock.o acpi-y += pci_root.o pci_link.o pci_irq.o -acpi-y += acpi_lpss.o +acpi-y += acpi_lpss.o acpi_apd.o acpi-y += acpi_platform.o acpi-y += acpi_pnp.o acpi-y += int340x_thermal.o diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c new file mode 100644 index 000000000000..3984ea96e5f7 --- /dev/null +++ b/drivers/acpi/acpi_apd.c @@ -0,0 +1,150 @@ +/* + * AMD ACPI support for ACPI2platform device. + * + * Copyright (c) 2014,2015 AMD Corporation. + * Authors: Ken Xue + * Wu, Jeff + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "internal.h" + +ACPI_MODULE_NAME("acpi_apd"); +struct apd_private_data; + +/** + * ACPI_APD_SYSFS : add device attributes in sysfs + * ACPI_APD_PM : attach power domain to device + */ +#define ACPI_APD_SYSFS BIT(0) +#define ACPI_APD_PM BIT(1) + +/** + * struct apd_device_desc - a descriptor for apd device + * @flags: device flags like %ACPI_APD_SYSFS, %ACPI_APD_PM + * @fixed_clk_rate: fixed rate input clock source for acpi device; + * 0 means no fixed rate input clock source + * @setup: a hook routine to set device resource during create platform device + * + * Device description defined as acpi_device_id.driver_data + */ +struct apd_device_desc { + unsigned int flags; + unsigned int fixed_clk_rate; + int (*setup)(struct apd_private_data *pdata); +}; + +struct apd_private_data { + struct clk *clk; + struct acpi_device *adev; + const struct apd_device_desc *dev_desc; +}; + +#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE +#define APD_ADDR(desc) ((unsigned long)&desc) + +static int acpi_apd_setup(struct apd_private_data *pdata) +{ + const struct apd_device_desc *dev_desc = pdata->dev_desc; + struct clk *clk = ERR_PTR(-ENODEV); + + if (dev_desc->fixed_clk_rate) { + clk = clk_register_fixed_rate(&pdata->adev->dev, + dev_name(&pdata->adev->dev), + NULL, CLK_IS_ROOT, + dev_desc->fixed_clk_rate); + clk_register_clkdev(clk, NULL, dev_name(&pdata->adev->dev)); + pdata->clk = clk; + } + + return 0; +} + +static struct apd_device_desc cz_i2c_desc = { + .setup = acpi_apd_setup, + .fixed_clk_rate = 133000000, +}; + +static struct apd_device_desc cz_uart_desc = { + .setup = acpi_apd_setup, + .fixed_clk_rate = 48000000, +}; + +#else + +#define APD_ADDR(desc) (0UL) + +#endif /* CONFIG_X86_AMD_PLATFORM_DEVICE */ + +/** +* Create platform device during acpi scan attach handle. +* Return value > 0 on success of creating device. +*/ +static int acpi_apd_create_device(struct acpi_device *adev, + const struct acpi_device_id *id) +{ + const struct apd_device_desc *dev_desc = (void *)id->driver_data; + struct apd_private_data *pdata; + struct platform_device *pdev; + int ret; + + if (!dev_desc) { + pdev = acpi_create_platform_device(adev); + return IS_ERR_OR_NULL(pdev) ? PTR_ERR(pdev) : 1; + } + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + pdata->adev = adev; + pdata->dev_desc = dev_desc; + + if (dev_desc->setup) { + ret = dev_desc->setup(pdata); + if (ret) + goto err_out; + } + + adev->driver_data = pdata; + pdev = acpi_create_platform_device(adev); + if (!IS_ERR_OR_NULL(pdev)) + return 1; + + ret = PTR_ERR(pdev); + adev->driver_data = NULL; + + err_out: + kfree(pdata); + return ret; +} + +static const struct acpi_device_id acpi_apd_device_ids[] = { + /* Generic apd devices */ + { "AMD0010", APD_ADDR(cz_i2c_desc) }, + { "AMD0020", APD_ADDR(cz_uart_desc) }, + { "AMD0030", }, + { } +}; + +static struct acpi_scan_handler apd_handler = { + .ids = acpi_apd_device_ids, + .attach = acpi_apd_create_device, +}; + +void __init acpi_apd_init(void) +{ + acpi_scan_add_handler(&apd_handler); +} diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 163e82f536fa..c24ae9d7fdcb 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -68,6 +68,8 @@ static inline void acpi_debugfs_init(void) { return; } #endif void acpi_lpss_init(void); +void acpi_apd_init(void); + acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); bool acpi_queue_hotplug_work(struct work_struct *work); void acpi_device_hotplug(struct acpi_device *adev, u32 src); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index dc4d8960684a..bbca7830e18a 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2544,6 +2544,7 @@ int __init acpi_scan_init(void) acpi_pci_link_init(); acpi_processor_init(); acpi_lpss_init(); + acpi_apd_init(); acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); -- cgit v1.2.3 From ad479e7f47ca09c3f3190603ead4d01cf8fe6fa8 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Fri, 6 Feb 2015 08:57:52 +0800 Subject: ACPI / EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit By using the 2 flags, we can indicate an inter-mediate state where the current transactions should be completed while the new transactions should be dropped. The comparison of the old flag and the new flags: Old New about to set BLOCKED STOPPED set / STARTED set BLOCKED set STOPPED clear / STARTED clear BLOCKED clear STOPPED clear / STARTED set A new period can be indicated by the 2 flags. The new period is between the point where we are about to set BLOCKED and the point when the BLOCKED is set. The new flags facilitate us with acpi_ec_started() check to allow the EC transaction to be submitted during the new period. This period thus can be used as a grace period for the EC transaction flushing. The only functional change after applying this patch is: 1. The GPE enabling/disabling is protected by the EC specific lock. We can do this because of recent ACPICA GPE API enhancement. This is reasonable as the GPE disabling/enabling state should only be determined by the EC driver's state machine which is protected by the EC spinlock. Signed-off-by: Lv Zheng Tested-by: Ortwin Glück Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 65 +++++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 54 insertions(+), 11 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 55632539392d..a6179b71c573 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -80,7 +80,8 @@ enum { EC_FLAGS_GPE_STORM, /* GPE storm detected */ EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and * OpReg are installed */ - EC_FLAGS_BLOCKED, /* Transactions are blocked */ + EC_FLAGS_STARTED, /* Driver is started */ + EC_FLAGS_STOPPED, /* Driver is stopped */ }; #define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */ @@ -134,6 +135,16 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ static int EC_FLAGS_QUERY_HANDSHAKE; /* Needs QR_EC issued when SCI_EVT set */ +/* -------------------------------------------------------------------------- + * Device Flags + * -------------------------------------------------------------------------- */ + +static bool acpi_ec_started(struct acpi_ec *ec) +{ + return test_bit(EC_FLAGS_STARTED, &ec->flags) && + !test_bit(EC_FLAGS_STOPPED, &ec->flags); +} + /* -------------------------------------------------------------------------- * EC Registers * -------------------------------------------------------------------------- */ @@ -415,6 +426,10 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, udelay(ACPI_EC_MSI_UDELAY); /* start transaction */ spin_lock_irqsave(&ec->lock, tmp); + if (!acpi_ec_started(ec)) { + ret = -EINVAL; + goto unlock; + } /* following two actions should be kept atomic */ ec->curr = t; pr_debug("***** Command(%s) started *****\n", @@ -426,6 +441,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, pr_debug("***** Command(%s) stopped *****\n", acpi_ec_cmd_string(t->command)); ec->curr = NULL; +unlock: spin_unlock_irqrestore(&ec->lock, tmp); return ret; } @@ -440,10 +456,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) if (t->rdata) memset(t->rdata, 0, t->rlen); mutex_lock(&ec->mutex); - if (test_bit(EC_FLAGS_BLOCKED, &ec->flags)) { - status = -EINVAL; - goto unlock; - } if (ec->global_lock) { status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); if (ACPI_FAILURE(status)) { @@ -595,6 +607,37 @@ static void acpi_ec_clear(struct acpi_ec *ec) pr_info("%d stale EC events cleared\n", i); } +static void acpi_ec_start(struct acpi_ec *ec, bool resuming) +{ + unsigned long flags; + + spin_lock_irqsave(&ec->lock, flags); + if (!test_and_set_bit(EC_FLAGS_STARTED, &ec->flags)) { + pr_debug("+++++ Starting EC +++++\n"); + if (!resuming) + acpi_ec_enable_gpe(ec, true); + pr_info("+++++ EC started +++++\n"); + } + spin_unlock_irqrestore(&ec->lock, flags); +} + +static void acpi_ec_stop(struct acpi_ec *ec, bool suspending) +{ + unsigned long flags; + + spin_lock_irqsave(&ec->lock, flags); + if (acpi_ec_started(ec)) { + pr_debug("+++++ Stopping EC +++++\n"); + set_bit(EC_FLAGS_STOPPED, &ec->flags); + if (!suspending) + acpi_ec_disable_gpe(ec, true); + clear_bit(EC_FLAGS_STARTED, &ec->flags); + clear_bit(EC_FLAGS_STOPPED, &ec->flags); + pr_info("+++++ EC stopped +++++\n"); + } + spin_unlock_irqrestore(&ec->lock, flags); +} + void acpi_ec_block_transactions(void) { struct acpi_ec *ec = first_ec; @@ -604,7 +647,7 @@ void acpi_ec_block_transactions(void) mutex_lock(&ec->mutex); /* Prevent transactions from being carried out */ - set_bit(EC_FLAGS_BLOCKED, &ec->flags); + acpi_ec_stop(ec, true); mutex_unlock(&ec->mutex); } @@ -616,7 +659,7 @@ void acpi_ec_unblock_transactions(void) return; /* Allow transactions to be carried out again */ - clear_bit(EC_FLAGS_BLOCKED, &ec->flags); + acpi_ec_start(ec, true); if (EC_FLAGS_CLEAR_ON_RESUME) acpi_ec_clear(ec); @@ -629,7 +672,7 @@ void acpi_ec_unblock_transactions_early(void) * atomic context during wakeup, so we don't need to acquire the mutex). */ if (first_ec) - clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags); + acpi_ec_start(first_ec, true); } /* -------------------------------------------------------------------------- @@ -894,7 +937,7 @@ static int ec_install_handlers(struct acpi_ec *ec) if (ACPI_FAILURE(status)) return -ENODEV; - acpi_ec_enable_gpe(ec, true); + acpi_ec_start(ec, false); status = acpi_install_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, @@ -909,7 +952,7 @@ static int ec_install_handlers(struct acpi_ec *ec) pr_err("Fail in evaluating the _REG object" " of EC device. Broken bios is suspected.\n"); } else { - acpi_ec_disable_gpe(ec, true); + acpi_ec_stop(ec, false); acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); return -ENODEV; @@ -924,7 +967,7 @@ static void ec_remove_handlers(struct acpi_ec *ec) { if (!test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) return; - acpi_ec_disable_gpe(ec, true); + acpi_ec_stop(ec, false); if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler))) pr_err("failed to remove space handler\n"); -- cgit v1.2.3 From 9887d22add48f24ca3a7605c89b0a21ed337f185 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Fri, 6 Feb 2015 08:57:59 +0800 Subject: ACPI / EC: Add command flushing support. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch implements the EC command flushing support. During the grace period indicated by EC_FLAGS_STARTED and EC_FLAGS_STOPPED, all submitted EC command transactions can be completed and new submissions are prevented before suspending so that the EC hardware can be ensured to be in the idle state when the system is resumed. There is a good indicator for flush support: All acpi_ec_submit_request() is invoked after checking driver state with acpi_ec_started() except the first one. This means all code paths can be flushed as fast as possible by discarding the requests occurred after the flush operation. The reference increased for such kind of code path is wrapped by acpi_ec_submit_flushable_request(). Signed-off-by: Lv Zheng Tested-by: Ortwin Glück Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++--- drivers/acpi/internal.h | 1 + 2 files changed, 66 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a6179b71c573..1fa14634c3f6 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -145,6 +145,11 @@ static bool acpi_ec_started(struct acpi_ec *ec) !test_bit(EC_FLAGS_STOPPED, &ec->flags); } +static bool acpi_ec_flushed(struct acpi_ec *ec) +{ + return ec->reference_count == 1; +} + /* -------------------------------------------------------------------------- * EC Registers * -------------------------------------------------------------------------- */ @@ -266,6 +271,44 @@ static inline void acpi_ec_clear_gpe(struct acpi_ec *ec) * Transaction Management * -------------------------------------------------------------------------- */ +static void acpi_ec_submit_request(struct acpi_ec *ec) +{ + ec->reference_count++; + if (ec->reference_count == 1) + acpi_ec_enable_gpe(ec, true); +} + +static void acpi_ec_complete_request(struct acpi_ec *ec) +{ + bool flushed = false; + + ec->reference_count--; + if (ec->reference_count == 0) + acpi_ec_disable_gpe(ec, true); + flushed = acpi_ec_flushed(ec); + if (flushed) + wake_up(&ec->wait); +} + +/* + * acpi_ec_submit_flushable_request() - Increase the reference count unless + * the flush operation is not in + * progress + * @ec: the EC device + * + * This function must be used before taking a new action that should hold + * the reference count. If this function returns false, then the action + * must be discarded or it will prevent the flush operation from being + * completed. + */ +static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec) +{ + if (!acpi_ec_started(ec)) + return false; + acpi_ec_submit_request(ec); + return true; +} + static void acpi_ec_submit_query(struct acpi_ec *ec) { if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { @@ -426,7 +469,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, udelay(ACPI_EC_MSI_UDELAY); /* start transaction */ spin_lock_irqsave(&ec->lock, tmp); - if (!acpi_ec_started(ec)) { + /* Enable GPE for command processing (IBF=0/OBF=1) */ + if (!acpi_ec_submit_flushable_request(ec)) { ret = -EINVAL; goto unlock; } @@ -441,6 +485,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, pr_debug("***** Command(%s) stopped *****\n", acpi_ec_cmd_string(t->command)); ec->curr = NULL; + /* Disable GPE for command processing (IBF=0/OBF=1) */ + acpi_ec_complete_request(ec); unlock: spin_unlock_irqrestore(&ec->lock, tmp); return ret; @@ -614,13 +660,25 @@ static void acpi_ec_start(struct acpi_ec *ec, bool resuming) spin_lock_irqsave(&ec->lock, flags); if (!test_and_set_bit(EC_FLAGS_STARTED, &ec->flags)) { pr_debug("+++++ Starting EC +++++\n"); + /* Enable GPE for event processing (SCI_EVT=1) */ if (!resuming) - acpi_ec_enable_gpe(ec, true); + acpi_ec_submit_request(ec); pr_info("+++++ EC started +++++\n"); } spin_unlock_irqrestore(&ec->lock, flags); } +static bool acpi_ec_stopped(struct acpi_ec *ec) +{ + unsigned long flags; + bool flushed; + + spin_lock_irqsave(&ec->lock, flags); + flushed = acpi_ec_flushed(ec); + spin_unlock_irqrestore(&ec->lock, flags); + return flushed; +} + static void acpi_ec_stop(struct acpi_ec *ec, bool suspending) { unsigned long flags; @@ -629,8 +687,12 @@ static void acpi_ec_stop(struct acpi_ec *ec, bool suspending) if (acpi_ec_started(ec)) { pr_debug("+++++ Stopping EC +++++\n"); set_bit(EC_FLAGS_STOPPED, &ec->flags); + spin_unlock_irqrestore(&ec->lock, flags); + wait_event(ec->wait, acpi_ec_stopped(ec)); + spin_lock_irqsave(&ec->lock, flags); + /* Disable GPE for event processing (SCI_EVT=1) */ if (!suspending) - acpi_ec_disable_gpe(ec, true); + acpi_ec_complete_request(ec); clear_bit(EC_FLAGS_STARTED, &ec->flags); clear_bit(EC_FLAGS_STOPPED, &ec->flags); pr_info("+++++ EC stopped +++++\n"); diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index dc420787ffcd..7dc69d82f658 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -122,6 +122,7 @@ struct acpi_ec { unsigned long data_addr; unsigned long global_lock; unsigned long flags; + unsigned long reference_count; struct mutex mutex; wait_queue_head_t wait; struct list_head list; -- cgit v1.2.3 From e1d4d90fc0313d3d58cbd7912c90f8ef24df45ff Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Fri, 6 Feb 2015 08:58:05 +0800 Subject: ACPI / EC: Refine command storm prevention support This patch refines EC command storm prevention support. Current command storming code is wrong, when the storming condition is detected, it only flags the condition without doing anything for the current command but performing storming prevention for the follow-up commands. So: 1. The first command which suffers from the storming still suffers from storming. 2. The follow-up commands which may not suffer from the storming are unconditionally forced into the storming prevention mode. Ideally, we should only enable storm prevention immediately after detection for the current command so that the next command can try the power/performance efficient interrupt mode again. This patch improves the command storm prevention by disabling GPE right after the detection and re-enabling it right before completing the command transaction using the GPE storming prevention APIs. This thus deploys the following GPE handling model: 1. acpi_enable_gpe()/acpi_disable_gpe() for reference count changes: This set of APIs are used for EC usage reference counting. 2. acpi_set_gpe(ACPI_GPE_ENABLE)/acpi_set_gpe(ACPI_GPE_DISABLE): This set of APIs are used for preventing GPE storm. They must be invoked when the reference count > 0. Note that as the storming prevention should always happen when there is an outstanding request, or GPE enabling value will be messed up by the races. This patch also adds BUG_ON() to enforces this rule to prevent future bugs. The msleep(1) used after completing a transaction is useless now as this sounds like a guard time only useful for platforms that need the EC_FLAGS_MSI quirks while we have fixed GPE race issues using the previous raw handler mode enabling. It is kept to avoid regressions. A seperate patch which deletes EC_FLAGS_MSI quirks should take care of deleting it. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 55 ++++++++++++++++++++++++++++++++++++------------------- 1 file changed, 36 insertions(+), 19 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 1fa14634c3f6..982b67faaaf3 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -77,11 +77,12 @@ enum ec_command { enum { EC_FLAGS_QUERY_PENDING, /* Query is pending */ - EC_FLAGS_GPE_STORM, /* GPE storm detected */ EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and * OpReg are installed */ EC_FLAGS_STARTED, /* Driver is started */ EC_FLAGS_STOPPED, /* Driver is stopped */ + EC_FLAGS_COMMAND_STORM, /* GPE storms occurred to the + * current command processing */ }; #define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */ @@ -229,8 +230,10 @@ static inline void acpi_ec_enable_gpe(struct acpi_ec *ec, bool open) { if (open) acpi_enable_gpe(NULL, ec->gpe); - else + else { + BUG_ON(ec->reference_count < 1); acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE); + } if (acpi_ec_is_gpe_raised(ec)) { /* * On some platforms, EN=1 writes cannot trigger GPE. So @@ -246,8 +249,10 @@ static inline void acpi_ec_disable_gpe(struct acpi_ec *ec, bool close) { if (close) acpi_disable_gpe(NULL, ec->gpe); - else + else { + BUG_ON(ec->reference_count < 1); acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE); + } } static inline void acpi_ec_clear_gpe(struct acpi_ec *ec) @@ -290,6 +295,24 @@ static void acpi_ec_complete_request(struct acpi_ec *ec) wake_up(&ec->wait); } +static void acpi_ec_set_storm(struct acpi_ec *ec, u8 flag) +{ + if (!test_bit(flag, &ec->flags)) { + acpi_ec_disable_gpe(ec, false); + pr_debug("+++++ Polling enabled +++++\n"); + set_bit(flag, &ec->flags); + } +} + +static void acpi_ec_clear_storm(struct acpi_ec *ec, u8 flag) +{ + if (test_bit(flag, &ec->flags)) { + clear_bit(flag, &ec->flags); + acpi_ec_enable_gpe(ec, false); + pr_debug("+++++ Polling disabled +++++\n"); + } +} + /* * acpi_ec_submit_flushable_request() - Increase the reference count unless * the flush operation is not in @@ -404,8 +427,13 @@ err: * otherwise will take a not handled IRQ as a false one. */ if (!(status & ACPI_EC_FLAG_SCI)) { - if (in_interrupt() && t) - ++t->irq_count; + if (in_interrupt() && t) { + if (t->irq_count < ec_storm_threshold) + ++t->irq_count; + /* Allow triggering on 0 threshold */ + if (t->irq_count == ec_storm_threshold) + acpi_ec_set_storm(ec, EC_FLAGS_COMMAND_STORM); + } } out: if (status & ACPI_EC_FLAG_SCI) @@ -482,6 +510,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, spin_unlock_irqrestore(&ec->lock, tmp); ret = ec_poll(ec); spin_lock_irqsave(&ec->lock, tmp); + if (t->irq_count == ec_storm_threshold) + acpi_ec_clear_storm(ec, EC_FLAGS_COMMAND_STORM); pr_debug("***** Command(%s) stopped *****\n", acpi_ec_cmd_string(t->command)); ec->curr = NULL; @@ -509,24 +539,11 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) goto unlock; } } - /* disable GPE during transaction if storm is detected */ - if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { - /* It has to be disabled, so that it doesn't trigger. */ - acpi_ec_disable_gpe(ec, false); - } status = acpi_ec_transaction_unlocked(ec, t); - if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { + if (test_bit(EC_FLAGS_COMMAND_STORM, &ec->flags)) msleep(1); - /* It is safe to enable the GPE outside of the transaction. */ - acpi_ec_enable_gpe(ec, false); - } else if (t->irq_count > ec_storm_threshold) { - pr_info("GPE storm detected(%d GPEs), " - "transactions will use polling mode\n", - t->irq_count); - set_bit(EC_FLAGS_GPE_STORM, &ec->flags); - } if (ec->global_lock) acpi_release_global_lock(glk); unlock: -- cgit v1.2.3 From f252cb09e1cb46834014aaa3814fbfb2352e9071 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Fri, 6 Feb 2015 08:58:10 +0800 Subject: ACPI / EC: Add query flushing support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch implementes the QR_EC flushing support. Grace periods are implemented from the detection of an SCI_EVT to the submission/completion of the QR_EC transaction. During this period, all EC command transactions are allowed to be submitted. Note that query periods and event periods are intentionally distiguished to allow further improvements. 1. Query period: from the detection of an SCI_EVT to the sumission of the QR_EC command. This period is used for storming prevention, as currently QR_EC is deferred to a work queue rather than directly issued from the IRQ context even there is no other transactions pending, so malicous SCI_EVT GPE can act like "level triggered" to trigger a GPE storm. We need to be prepared for this. And in the future, we may change it to be a part of the advance_transaction() where we will try QR_EC submission in appropriate positions to avoid such GPE storming. 2. Event period: from the detection of an SCI_EVT to the completion of the QR_EC command. We may extend it to the completion of _Qxx evaluation. This is actually a grace period for event flushing, but we only flush queries due to the reason stated in known issue 1. That's also why we use EC_FLAGS_EVENT_xxx. During this period, QR_EC transactions need to pass the flushable submission check. In this patch, the following flags are implemented: 1. EC_FLAGS_EVENT_ENABLED: this is derived from the old EC_FLAGS_QUERY_PENDING flag which can block SCI_EVT handlings. With this flag, the logics implemented by the original flag are extended: 1. Old logic: unless both of the flags are set, the event poller will not be scheduled, and 2. New logic: as soon as both of the flags are set, the evet poller will be scheduled. 2. EC_FLAGS_EVENT_DETECTED: this is also derived from the old EC_FLAGS_QUERY_PENDING flag which can block SCI_EVT detection. It thus can be used to indicate the storming prevention period for query submission. acpi_ec_submit_request()/acpi_ec_complete_request() are invoked to implement this period so that acpi_set_gpe() can be invoked under the "reference count > 0" condition. 3. EC_FLAGS_EVENT_PENDING: this is newly added to indicate the grace period for event flushing (query flushing for now). acpi_ec_submit_request()/acpi_ec_complete_request() are invoked to implement this period so that the flushing process can wait until the event handling (query transaction for now) to be completed. Link: https://bugzilla.kernel.org/show_bug.cgi?id=82611 Link: https://bugzilla.kernel.org/show_bug.cgi?id=77431 Signed-off-by: Lv Zheng Tested-by: Ortwin Glück Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 101 +++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 85 insertions(+), 16 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 982b67faaaf3..40002ae7db2b 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -76,7 +76,9 @@ enum ec_command { * when trying to clear the EC */ enum { - EC_FLAGS_QUERY_PENDING, /* Query is pending */ + EC_FLAGS_EVENT_ENABLED, /* Event is enabled */ + EC_FLAGS_EVENT_PENDING, /* Event is pending */ + EC_FLAGS_EVENT_DETECTED, /* Event is detected */ EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and * OpReg are installed */ EC_FLAGS_STARTED, /* Driver is started */ @@ -151,6 +153,12 @@ static bool acpi_ec_flushed(struct acpi_ec *ec) return ec->reference_count == 1; } +static bool acpi_ec_has_pending_event(struct acpi_ec *ec) +{ + return test_bit(EC_FLAGS_EVENT_DETECTED, &ec->flags) || + test_bit(EC_FLAGS_EVENT_PENDING, &ec->flags); +} + /* -------------------------------------------------------------------------- * EC Registers * -------------------------------------------------------------------------- */ @@ -318,36 +326,93 @@ static void acpi_ec_clear_storm(struct acpi_ec *ec, u8 flag) * the flush operation is not in * progress * @ec: the EC device + * @allow_event: whether event should be handled * * This function must be used before taking a new action that should hold * the reference count. If this function returns false, then the action * must be discarded or it will prevent the flush operation from being * completed. + * + * During flushing, QR_EC command need to pass this check when there is a + * pending event, so that the reference count held for the pending event + * can be decreased by the completion of the QR_EC command. */ -static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec) +static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec, + bool allow_event) { - if (!acpi_ec_started(ec)) - return false; + if (!acpi_ec_started(ec)) { + if (!allow_event || !acpi_ec_has_pending_event(ec)) + return false; + } acpi_ec_submit_request(ec); return true; } -static void acpi_ec_submit_query(struct acpi_ec *ec) +static void acpi_ec_submit_event(struct acpi_ec *ec) { - if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { - pr_debug("***** Event started *****\n"); + if (!test_bit(EC_FLAGS_EVENT_DETECTED, &ec->flags) || + !test_bit(EC_FLAGS_EVENT_ENABLED, &ec->flags)) + return; + /* Hold reference for pending event */ + if (!acpi_ec_submit_flushable_request(ec, true)) + return; + if (!test_and_set_bit(EC_FLAGS_EVENT_PENDING, &ec->flags)) { + pr_debug("***** Event query started *****\n"); schedule_work(&ec->work); + return; + } + acpi_ec_complete_request(ec); +} + +static void acpi_ec_complete_event(struct acpi_ec *ec) +{ + if (ec->curr->command == ACPI_EC_COMMAND_QUERY) { + clear_bit(EC_FLAGS_EVENT_PENDING, &ec->flags); + pr_debug("***** Event query stopped *****\n"); + /* Unhold reference for pending event */ + acpi_ec_complete_request(ec); + /* Check if there is another SCI_EVT detected */ + acpi_ec_submit_event(ec); + } +} + +static void acpi_ec_submit_detection(struct acpi_ec *ec) +{ + /* Hold reference for query submission */ + if (!acpi_ec_submit_flushable_request(ec, false)) + return; + if (!test_and_set_bit(EC_FLAGS_EVENT_DETECTED, &ec->flags)) { + pr_debug("***** Event detection blocked *****\n"); + acpi_ec_submit_event(ec); + return; } + acpi_ec_complete_request(ec); } -static void acpi_ec_complete_query(struct acpi_ec *ec) +static void acpi_ec_complete_detection(struct acpi_ec *ec) { if (ec->curr->command == ACPI_EC_COMMAND_QUERY) { - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - pr_debug("***** Event stopped *****\n"); + clear_bit(EC_FLAGS_EVENT_DETECTED, &ec->flags); + pr_debug("***** Event detetion unblocked *****\n"); + /* Unhold reference for query submission */ + acpi_ec_complete_request(ec); } } +static void acpi_ec_enable_event(struct acpi_ec *ec) +{ + unsigned long flags; + + spin_lock_irqsave(&ec->lock, flags); + set_bit(EC_FLAGS_EVENT_ENABLED, &ec->flags); + /* + * An event may be pending even with SCI_EVT=0, so QR_EC should + * always be issued right after started. + */ + acpi_ec_submit_detection(ec); + spin_unlock_irqrestore(&ec->lock, flags); +} + static int ec_transaction_completed(struct acpi_ec *ec) { unsigned long flags; @@ -389,6 +454,7 @@ static void advance_transaction(struct acpi_ec *ec) t->rdata[t->ri++] = acpi_ec_read_data(ec); if (t->rlen == t->ri) { t->flags |= ACPI_EC_COMMAND_COMPLETE; + acpi_ec_complete_event(ec); if (t->command == ACPI_EC_COMMAND_QUERY) pr_debug("***** Command(%s) hardware completion *****\n", acpi_ec_cmd_string(t->command)); @@ -399,6 +465,7 @@ static void advance_transaction(struct acpi_ec *ec) } else if (t->wlen == t->wi && (status & ACPI_EC_FLAG_IBF) == 0) { t->flags |= ACPI_EC_COMMAND_COMPLETE; + acpi_ec_complete_event(ec); wakeup = true; } goto out; @@ -407,16 +474,17 @@ static void advance_transaction(struct acpi_ec *ec) !(status & ACPI_EC_FLAG_SCI) && (t->command == ACPI_EC_COMMAND_QUERY)) { t->flags |= ACPI_EC_COMMAND_POLL; - acpi_ec_complete_query(ec); + acpi_ec_complete_detection(ec); t->rdata[t->ri++] = 0x00; t->flags |= ACPI_EC_COMMAND_COMPLETE; + acpi_ec_complete_event(ec); pr_debug("***** Command(%s) software completion *****\n", acpi_ec_cmd_string(t->command)); wakeup = true; } else if ((status & ACPI_EC_FLAG_IBF) == 0) { acpi_ec_write_cmd(ec, t->command); t->flags |= ACPI_EC_COMMAND_POLL; - acpi_ec_complete_query(ec); + acpi_ec_complete_detection(ec); } else goto err; goto out; @@ -437,7 +505,7 @@ err: } out: if (status & ACPI_EC_FLAG_SCI) - acpi_ec_submit_query(ec); + acpi_ec_submit_detection(ec); if (wakeup && in_interrupt()) wake_up(&ec->wait); } @@ -498,7 +566,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, /* start transaction */ spin_lock_irqsave(&ec->lock, tmp); /* Enable GPE for command processing (IBF=0/OBF=1) */ - if (!acpi_ec_submit_flushable_request(ec)) { + if (!acpi_ec_submit_flushable_request(ec, true)) { ret = -EINVAL; goto unlock; } @@ -879,7 +947,9 @@ static void acpi_ec_gpe_poller(struct work_struct *work) { struct acpi_ec *ec = container_of(work, struct acpi_ec, work); + pr_debug("***** Event poller started *****\n"); acpi_ec_query(ec, NULL); + pr_debug("***** Event poller stopped *****\n"); } static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, @@ -949,7 +1019,6 @@ static struct acpi_ec *make_acpi_ec(void) if (!ec) return NULL; - ec->flags = 1 << EC_FLAGS_QUERY_PENDING; mutex_init(&ec->mutex); init_waitqueue_head(&ec->wait); INIT_LIST_HEAD(&ec->list); @@ -1100,7 +1169,7 @@ static int acpi_ec_add(struct acpi_device *device) ret = ec_install_handlers(ec); /* EC is fully operational, allow queries */ - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); + acpi_ec_enable_event(ec); /* Clear stale _Q events if hardware might require that */ if (EC_FLAGS_CLEAR_ON_RESUME) -- cgit v1.2.3 From b5bca896ef3c4dd8aa1aac55256cb094c7376a77 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Fri, 6 Feb 2015 08:58:16 +0800 Subject: ACPI / EC: Add GPE reference counting debugging messages This patch enhances debugging with the GPE reference count messages added. No functional changes. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 40002ae7db2b..14d0c89ada2a 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -31,6 +31,7 @@ /* Uncomment next line to get verbose printout */ /* #define DEBUG */ +#define DEBUG_REF 0 #define pr_fmt(fmt) "ACPI : EC: " fmt #include @@ -90,6 +91,13 @@ enum { #define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */ #define ACPI_EC_COMMAND_COMPLETE 0x02 /* Completed last byte */ +#define ec_debug_ref(ec, fmt, ...) \ + do { \ + if (DEBUG_REF) \ + pr_debug("%lu: " fmt, ec->reference_count, \ + ## __VA_ARGS__); \ + } while (0) + /* ec.c is compiled in acpi namespace so this shows up as acpi.ec_delay param */ static unsigned int ec_delay __read_mostly = ACPI_EC_DELAY; module_param(ec_delay, uint, 0644); @@ -356,12 +364,14 @@ static void acpi_ec_submit_event(struct acpi_ec *ec) /* Hold reference for pending event */ if (!acpi_ec_submit_flushable_request(ec, true)) return; + ec_debug_ref(ec, "Increase event\n"); if (!test_and_set_bit(EC_FLAGS_EVENT_PENDING, &ec->flags)) { pr_debug("***** Event query started *****\n"); schedule_work(&ec->work); return; } acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease event\n"); } static void acpi_ec_complete_event(struct acpi_ec *ec) @@ -371,6 +381,7 @@ static void acpi_ec_complete_event(struct acpi_ec *ec) pr_debug("***** Event query stopped *****\n"); /* Unhold reference for pending event */ acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease event\n"); /* Check if there is another SCI_EVT detected */ acpi_ec_submit_event(ec); } @@ -381,12 +392,14 @@ static void acpi_ec_submit_detection(struct acpi_ec *ec) /* Hold reference for query submission */ if (!acpi_ec_submit_flushable_request(ec, false)) return; + ec_debug_ref(ec, "Increase query\n"); if (!test_and_set_bit(EC_FLAGS_EVENT_DETECTED, &ec->flags)) { pr_debug("***** Event detection blocked *****\n"); acpi_ec_submit_event(ec); return; } acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease query\n"); } static void acpi_ec_complete_detection(struct acpi_ec *ec) @@ -396,6 +409,7 @@ static void acpi_ec_complete_detection(struct acpi_ec *ec) pr_debug("***** Event detetion unblocked *****\n"); /* Unhold reference for query submission */ acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease query\n"); } } @@ -570,6 +584,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, ret = -EINVAL; goto unlock; } + ec_debug_ref(ec, "Increase command\n"); /* following two actions should be kept atomic */ ec->curr = t; pr_debug("***** Command(%s) started *****\n", @@ -585,6 +600,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, ec->curr = NULL; /* Disable GPE for command processing (IBF=0/OBF=1) */ acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease command\n"); unlock: spin_unlock_irqrestore(&ec->lock, tmp); return ret; @@ -746,8 +762,10 @@ static void acpi_ec_start(struct acpi_ec *ec, bool resuming) if (!test_and_set_bit(EC_FLAGS_STARTED, &ec->flags)) { pr_debug("+++++ Starting EC +++++\n"); /* Enable GPE for event processing (SCI_EVT=1) */ - if (!resuming) + if (!resuming) { acpi_ec_submit_request(ec); + ec_debug_ref(ec, "Increase driver\n"); + } pr_info("+++++ EC started +++++\n"); } spin_unlock_irqrestore(&ec->lock, flags); @@ -776,8 +794,10 @@ static void acpi_ec_stop(struct acpi_ec *ec, bool suspending) wait_event(ec->wait, acpi_ec_stopped(ec)); spin_lock_irqsave(&ec->lock, flags); /* Disable GPE for event processing (SCI_EVT=1) */ - if (!suspending) + if (!suspending) { acpi_ec_complete_request(ec); + ec_debug_ref(ec, "Decrease driver\n"); + } clear_bit(EC_FLAGS_STARTED, &ec->flags); clear_bit(EC_FLAGS_STOPPED, &ec->flags); pr_info("+++++ EC stopped +++++\n"); -- cgit v1.2.3 From 8dcb52cbcadf7cbee62a7723f8a588a31281eccd Mon Sep 17 00:00:00 2001 From: Andreas Ruprecht Date: Sun, 8 Feb 2015 14:12:59 +0100 Subject: ACPI / PM: Remove unneeded nested #ifdef In commit 5de21bb998b8 ("ACPI / PM: Drop CONFIG_PM_RUNTIME from the ACPI core"), all occurrences of CONFIG_PM_RUNTIME were replaced with CONFIG_PM. This created the following structure of #ifdef blocks in the code: [...] #ifdef CONFIG_PM #ifdef CONFIG_PM /* always on / undead */ #ifdef CONFIG_PM_SLEEP [...] #endif #endif [...] #endif This patch removes the inner "#ifdef CONFIG_PM" block as it will always be enabled when the outer block is enabled. This inconsistency was found using the undertaker-checkpatch tool. Signed-off-by: Andreas Ruprecht Signed-off-by: Rafael J. Wysocki --- drivers/acpi/device_pm.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index c0d44d394ca3..735db11a9b00 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1027,7 +1027,6 @@ EXPORT_SYMBOL_GPL(acpi_subsys_freeze); static struct dev_pm_domain acpi_general_pm_domain = { .ops = { -#ifdef CONFIG_PM .runtime_suspend = acpi_subsys_runtime_suspend, .runtime_resume = acpi_subsys_runtime_resume, #ifdef CONFIG_PM_SLEEP @@ -1040,7 +1039,6 @@ static struct dev_pm_domain acpi_general_pm_domain = { .poweroff = acpi_subsys_suspend, .poweroff_late = acpi_subsys_suspend_late, .restore_early = acpi_subsys_resume_early, -#endif #endif }, }; -- cgit v1.2.3 From e77a16355a29230b99bafe55834a8252e55308ec Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 7 Feb 2015 09:53:53 +0100 Subject: ACPI / video: Add disable_native_backlight quirk for Samsung 510R Backlight control through the native intel interface does not work properly on the Samsung 510R, where as using the acpi_video interface does work, add a quirk for this. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1186097 Cc: All applicable Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 497d98620361..88a4f99dd2a7 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -522,6 +522,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"), }, }, + { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */ + .callback = video_disable_native_backlight, + .ident = "SAMSUNG 3570R/370R/470R/450R/510R/4450RV", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), + DMI_MATCH(DMI_PRODUCT_NAME, "3570R/370R/470R/450R/510R/4450RV"), + }, + }, { /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ .callback = video_disable_native_backlight, -- cgit v1.2.3