diff options
Diffstat (limited to 'drivers/edac/igen6_edac.c')
| -rw-r--r-- | drivers/edac/igen6_edac.c | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c index 189a2fc29e74..fdf3a84fe698 100644 --- a/drivers/edac/igen6_edac.c +++ b/drivers/edac/igen6_edac.c @@ -263,6 +263,11 @@ static struct work_struct ecclog_work; #define DID_ARL_UH_SKU2 0x7d20 #define DID_ARL_UH_SKU3 0x7d30 +/* Compute die IDs for Panther Lake-H with IBECC */ +#define DID_PTL_H_SKU1 0xb000 +#define DID_PTL_H_SKU2 0xb001 +#define DID_PTL_H_SKU3 0xb002 + static int get_mchbar(struct pci_dev *pdev, u64 *mchbar) { union { @@ -605,6 +610,9 @@ static const struct pci_device_id igen6_pci_tbl[] = { { PCI_VDEVICE(INTEL, DID_ARL_UH_SKU1), (kernel_ulong_t)&mtl_p_cfg }, { PCI_VDEVICE(INTEL, DID_ARL_UH_SKU2), (kernel_ulong_t)&mtl_p_cfg }, { PCI_VDEVICE(INTEL, DID_ARL_UH_SKU3), (kernel_ulong_t)&mtl_p_cfg }, + { PCI_VDEVICE(INTEL, DID_PTL_H_SKU1), (kernel_ulong_t)&mtl_p_cfg }, + { PCI_VDEVICE(INTEL, DID_PTL_H_SKU2), (kernel_ulong_t)&mtl_p_cfg }, + { PCI_VDEVICE(INTEL, DID_PTL_H_SKU3), (kernel_ulong_t)&mtl_p_cfg }, { }, }; MODULE_DEVICE_TABLE(pci, igen6_pci_tbl); @@ -1170,6 +1178,20 @@ fail: return -ENODEV; } +static void igen6_check(struct mem_ctl_info *mci) +{ + struct igen6_imc *imc = mci->pvt_info; + u64 ecclog; + + /* errsts_clear() isn't NMI-safe. Delay it in the IRQ context */ + ecclog = ecclog_read_and_clear(imc); + if (!ecclog) + return; + + if (!ecclog_gen_pool_add(imc->mc, ecclog)) + irq_work_queue(&ecclog_irq_work); +} + static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev) { struct edac_mc_layer layers[2]; @@ -1211,6 +1233,8 @@ static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev) mci->edac_cap = EDAC_FLAG_SECDED; mci->mod_name = EDAC_MOD_STR; mci->dev_name = pci_name(pdev); + if (edac_op_state == EDAC_OPSTATE_POLL) + mci->edac_check = igen6_check; mci->pvt_info = &igen6_pvt->imc[mc]; imc = mci->pvt_info; @@ -1245,6 +1269,7 @@ static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev) imc->mci = mci; return 0; fail3: + mci->pvt_info = NULL; kfree(mci->ctl_name); fail2: edac_mc_free(mci); @@ -1269,6 +1294,7 @@ static void igen6_unregister_mcis(void) edac_mc_del_mc(mci->pdev); kfree(mci->ctl_name); + mci->pvt_info = NULL; edac_mc_free(mci); iounmap(imc->window); } @@ -1348,6 +1374,25 @@ static void unregister_err_handler(void) unregister_nmi_handler(NMI_SERR, IGEN6_NMI_NAME); } +static void opstate_set(struct res_config *cfg, const struct pci_device_id *ent) +{ + /* + * Quirk: Certain SoCs' error reporting interrupts don't work. + * Force polling mode for them to ensure that memory error + * events can be handled. + */ + if (ent->device == DID_ADL_N_SKU4) { + edac_op_state = EDAC_OPSTATE_POLL; + return; + } + + /* Set the mode according to the configuration data. */ + if (cfg->machine_check) + edac_op_state = EDAC_OPSTATE_INT; + else + edac_op_state = EDAC_OPSTATE_NMI; +} + static int igen6_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { u64 mchbar; @@ -1365,6 +1410,8 @@ static int igen6_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto fail; + opstate_set(res_cfg, ent); + for (i = 0; i < res_cfg->num_imc; i++) { rc = igen6_register_mci(i, mchbar, pdev); if (rc) @@ -1448,8 +1495,6 @@ static int __init igen6_init(void) if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; - edac_op_state = EDAC_OPSTATE_NMI; - rc = pci_register_driver(&igen6_driver); if (rc) return rc; |