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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2008-04-25 14:39:06 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2008-04-25 14:39:06 -0700
commitae416e6b2936fdb70aeee6eb9066115d4521daa6 (patch)
tree697673ed483f1d39e654b54081eb5306df41e91a /drivers/pci/hotplug/pciehp_ctrl.c
parentc27fb883dffe11aa4cb35ecea1fa1832ba45d4da (diff)
downloadlwn-ae416e6b2936fdb70aeee6eb9066115d4521daa6.tar.gz
lwn-ae416e6b2936fdb70aeee6eb9066115d4521daa6.zip
pciehp: Fix wrong slot capability check
Current pciehp saves only 8bits of Slot Capability registers in ctrl->ctrlcap. But it refers more than 8bit for checking EMI capability. It is clearly a bug and EMI would never work. To fix this problem, this patch saves full Slot Capability contens in ctrl->slot_cap. It also reduce the redundant reads of Slot Capability register. And this pach also cleans up the macros to check the slot capabilitys (e.g. MRL_SENS(), and so on). Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_ctrl.c')
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 0c481f7d2ab3..0a7aa628e955 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -178,7 +178,7 @@ u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl)
static void set_slot_off(struct controller *ctrl, struct slot * pslot)
{
/* turn off slot, turn on Amber LED, turn off Green LED if supported*/
- if (POWER_CTRL(ctrl->ctrlcap)) {
+ if (POWER_CTRL(ctrl)) {
if (pslot->hpc_ops->power_off_slot(pslot)) {
err("%s: Issue of Slot Power Off command failed\n",
__func__);
@@ -186,10 +186,10 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
}
}
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
pslot->hpc_ops->green_led_off(pslot);
- if (ATTN_LED(ctrl->ctrlcap)) {
+ if (ATTN_LED(ctrl)) {
if (pslot->hpc_ops->set_attention_status(pslot, 1)) {
err("%s: Issue of Set Attention Led command failed\n",
__func__);
@@ -214,14 +214,14 @@ static int board_added(struct slot *p_slot)
__func__, p_slot->device,
ctrl->slot_device_offset, p_slot->hp_slot);
- if (POWER_CTRL(ctrl->ctrlcap)) {
+ if (POWER_CTRL(ctrl)) {
/* Power on slot */
retval = p_slot->hpc_ops->power_on_slot(p_slot);
if (retval)
return retval;
}
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_blink(p_slot);
/* Wait for ~1 second */
@@ -254,7 +254,7 @@ static int board_added(struct slot *p_slot)
*/
if (pcie_mch_quirk)
pci_fixup_device(pci_fixup_final, ctrl->pci_dev);
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_on(p_slot);
return 0;
@@ -279,7 +279,7 @@ static int remove_board(struct slot *p_slot)
dbg("In %s, hp_slot = %d\n", __func__, p_slot->hp_slot);
- if (POWER_CTRL(ctrl->ctrlcap)) {
+ if (POWER_CTRL(ctrl)) {
/* power off slot */
retval = p_slot->hpc_ops->power_off_slot(p_slot);
if (retval) {
@@ -289,7 +289,7 @@ static int remove_board(struct slot *p_slot)
}
}
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
/* turn off Green LED */
p_slot->hpc_ops->green_led_off(p_slot);
@@ -327,7 +327,7 @@ static void pciehp_power_thread(struct work_struct *work)
case POWERON_STATE:
mutex_unlock(&p_slot->lock);
if (pciehp_enable_slot(p_slot) &&
- PWR_LED(p_slot->ctrl->ctrlcap))
+ PWR_LED(p_slot->ctrl))
p_slot->hpc_ops->green_led_off(p_slot);
mutex_lock(&p_slot->lock);
p_slot->state = STATIC_STATE;
@@ -409,9 +409,9 @@ static void handle_button_press_event(struct slot *p_slot)
"press.\n", p_slot->name);
}
/* blink green LED and turn off amber */
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_blink(p_slot);
- if (ATTN_LED(ctrl->ctrlcap))
+ if (ATTN_LED(ctrl))
p_slot->hpc_ops->set_attention_status(p_slot, 0);
schedule_delayed_work(&p_slot->work, 5*HZ);
@@ -427,13 +427,13 @@ static void handle_button_press_event(struct slot *p_slot)
dbg("%s: button cancel\n", __func__);
cancel_delayed_work(&p_slot->work);
if (p_slot->state == BLINKINGOFF_STATE) {
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_on(p_slot);
} else {
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_off(p_slot);
}
- if (ATTN_LED(ctrl->ctrlcap))
+ if (ATTN_LED(ctrl))
p_slot->hpc_ops->set_attention_status(p_slot, 0);
info("PCI slot #%s - action canceled due to button press\n",
p_slot->name);
@@ -492,16 +492,16 @@ static void interrupt_event_handler(struct work_struct *work)
handle_button_press_event(p_slot);
break;
case INT_POWER_FAULT:
- if (!POWER_CTRL(ctrl->ctrlcap))
+ if (!POWER_CTRL(ctrl))
break;
- if (ATTN_LED(ctrl->ctrlcap))
+ if (ATTN_LED(ctrl))
p_slot->hpc_ops->set_attention_status(p_slot, 1);
- if (PWR_LED(ctrl->ctrlcap))
+ if (PWR_LED(ctrl))
p_slot->hpc_ops->green_led_off(p_slot);
break;
case INT_PRESENCE_ON:
case INT_PRESENCE_OFF:
- if (!HP_SUPR_RM(ctrl->ctrlcap))
+ if (!HP_SUPR_RM(ctrl))
break;
dbg("Surprise Removal\n");
update_slot_info(p_slot);
@@ -531,7 +531,7 @@ int pciehp_enable_slot(struct slot *p_slot)
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
- if (MRL_SENS(p_slot->ctrl->ctrlcap)) {
+ if (MRL_SENS(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (rc || getstatus) {
info("%s: latch open on slot(%s)\n", __func__,
@@ -541,7 +541,7 @@ int pciehp_enable_slot(struct slot *p_slot)
}
}
- if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {
+ if (POWER_CTRL(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (rc || getstatus) {
info("%s: already enabled on slot(%s)\n", __func__,
@@ -576,7 +576,7 @@ int pciehp_disable_slot(struct slot *p_slot)
/* Check to see if (latch closed, card present, power on) */
mutex_lock(&p_slot->ctrl->crit_sect);
- if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) {
+ if (!HP_SUPR_RM(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (ret || !getstatus) {
info("%s: no adapter on slot(%s)\n", __func__,
@@ -586,7 +586,7 @@ int pciehp_disable_slot(struct slot *p_slot)
}
}
- if (MRL_SENS(p_slot->ctrl->ctrlcap)) {
+ if (MRL_SENS(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (ret || getstatus) {
info("%s: latch open on slot(%s)\n", __func__,
@@ -596,7 +596,7 @@ int pciehp_disable_slot(struct slot *p_slot)
}
}
- if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {
+ if (POWER_CTRL(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (ret || !getstatus) {
info("%s: already disabled slot(%s)\n", __func__,