diff options
Diffstat (limited to 'drivers/edac/skx_common.c')
| -rw-r--r-- | drivers/edac/skx_common.c | 80 |
1 files changed, 66 insertions, 14 deletions
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index 6cf17af7d911..fa5b442b1844 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -19,6 +19,7 @@ #include <linux/adxl.h> #include <acpi/nfit.h> #include <asm/mce.h> +#include <asm/uv/uv.h> #include "edac_module.h" #include "skx_common.h" @@ -120,6 +121,35 @@ void skx_adxl_put(void) } EXPORT_SYMBOL_GPL(skx_adxl_put); +static void skx_init_mc_mapping(struct skx_dev *d) +{ + /* + * By default, the BIOS presents all memory controllers within each + * socket to the EDAC driver. The physical indices are the same as + * the logical indices of the memory controllers enumerated by the + * EDAC driver. + */ + for (int i = 0; i < NUM_IMC; i++) + d->mc_mapping[i] = i; +} + +void skx_set_mc_mapping(struct skx_dev *d, u8 pmc, u8 lmc) +{ + edac_dbg(0, "Set the mapping of mc phy idx to logical idx: %02d -> %02d\n", + pmc, lmc); + + d->mc_mapping[pmc] = lmc; +} +EXPORT_SYMBOL_GPL(skx_set_mc_mapping); + +static u8 skx_get_mc_mapping(struct skx_dev *d, u8 pmc) +{ + edac_dbg(0, "Get the mapping of mc phy idx to logical idx: %02d -> %02d\n", + pmc, d->mc_mapping[pmc]); + + return d->mc_mapping[pmc]; +} + static bool skx_adxl_decode(struct decoded_addr *res, enum error_source err_src) { struct skx_dev *d; @@ -187,6 +217,8 @@ static bool skx_adxl_decode(struct decoded_addr *res, enum error_source err_src) return false; } + res->imc = skx_get_mc_mapping(d, res->imc); + for (i = 0; i < adxl_component_count; i++) { if (adxl_values[i] == ~0x0ull) continue; @@ -221,33 +253,51 @@ void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log) } EXPORT_SYMBOL_GPL(skx_set_decode); -int skx_get_src_id(struct skx_dev *d, int off, u8 *id) +static int skx_get_pkg_id(struct skx_dev *d, u8 *id) { - u32 reg; + int node; + int cpu; - if (pci_read_config_dword(d->util_all, off, ®)) { - skx_printk(KERN_ERR, "Failed to read src id\n"); - return -ENODEV; + node = pcibus_to_node(d->util_all->bus); + if (numa_valid_node(node)) { + for_each_cpu(cpu, cpumask_of_pcibus(d->util_all->bus)) { + struct cpuinfo_x86 *c = &cpu_data(cpu); + + if (c->initialized && cpu_to_node(cpu) == node) { + *id = c->topo.pkg_id; + return 0; + } + } } - *id = GET_BITFIELD(reg, 12, 14); - return 0; + skx_printk(KERN_ERR, "Failed to get package ID from NUMA information\n"); + return -ENODEV; } -EXPORT_SYMBOL_GPL(skx_get_src_id); -int skx_get_node_id(struct skx_dev *d, u8 *id) +int skx_get_src_id(struct skx_dev *d, int off, u8 *id) { u32 reg; - if (pci_read_config_dword(d->util_all, 0xf4, ®)) { - skx_printk(KERN_ERR, "Failed to read node id\n"); + /* + * The 3-bit source IDs in PCI configuration space registers are limited + * to 8 unique IDs, and each ID is local to a UPI/QPI domain. + * + * Source IDs cannot be used to map devices to sockets on UV systems + * because they can exceed 8 sockets and have multiple UPI/QPI domains + * with identical, repeating source IDs. + */ + if (is_uv_system()) + return skx_get_pkg_id(d, id); + + if (pci_read_config_dword(d->util_all, off, ®)) { + skx_printk(KERN_ERR, "Failed to read src id\n"); return -ENODEV; } - *id = GET_BITFIELD(reg, 0, 2); + *id = GET_BITFIELD(reg, 12, 14); return 0; } -EXPORT_SYMBOL_GPL(skx_get_node_id); +EXPORT_SYMBOL_GPL(skx_get_src_id); static int get_width(u32 mtr) { @@ -307,6 +357,8 @@ int skx_get_all_bus_mappings(struct res_config *cfg, struct list_head **list) d->bus[0], d->bus[1], d->bus[2], d->bus[3]); list_add_tail(&d->list, &dev_edac_list); prev = pdev; + + skx_init_mc_mapping(d); } if (list) @@ -507,7 +559,7 @@ int skx_register_mci(struct skx_imc *imc, struct pci_dev *pdev, pvt->imc = imc; mci->ctl_name = kasprintf(GFP_KERNEL, "%s#%d IMC#%d", ctl_name, - imc->node_id, imc->lmc); + imc->src_id, imc->lmc); if (!mci->ctl_name) { rc = -ENOMEM; goto fail0; |