diff options
| -rw-r--r-- | drivers/edac/sb_edac.c | 134 |
1 files changed, 36 insertions, 98 deletions
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 342167496626..be398e0cf08a 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -21,6 +21,8 @@ #include <linux/smp.h> #include <linux/bitmap.h> #include <linux/math64.h> +#include <linux/mod_devicetable.h> +#include <asm/cpu_device_id.h> #include <asm/processor.h> #include <asm/mce.h> @@ -28,8 +30,6 @@ /* Static vars */ static LIST_HEAD(sbridge_edac_list); -static DEFINE_MUTEX(sbridge_edac_lock); -static int probed; /* * Alter this version for the module when modifications are made @@ -651,18 +651,6 @@ static const struct pci_id_table pci_dev_descr_broadwell_table[] = { {0,} /* 0 terminated list. */ }; -/* - * pci_device_id table for which devices we are looking for - */ -static const struct pci_device_id sbridge_pci_tbl[] = { - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0)}, - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)}, - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0)}, - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0)}, - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KNL_IMC_SAD0)}, - {0,} /* 0 terminated list. */ -}; - /**************************************************************************** Ancillary status routines @@ -3344,62 +3332,40 @@ fail0: return rc; } +#define ICPU(model, table) \ + { X86_VENDOR_INTEL, 6, model, 0, (unsigned long)&table } + +/* Order here must match "enum type" */ +static const struct x86_cpu_id sbridge_cpuids[] = { + ICPU(0x2d, pci_dev_descr_sbridge_table), /* SANDY_BRIDGE */ + ICPU(0x3e, pci_dev_descr_ibridge_table), /* IVY_BRIDGE */ + ICPU(0x3f, pci_dev_descr_haswell_table), /* HASWELL */ + ICPU(0x4f, pci_dev_descr_broadwell_table), /* BROADWELL */ + ICPU(0x57, pci_dev_descr_knl_table), /* KNIGHTS_LANDING */ + { } +}; +MODULE_DEVICE_TABLE(x86cpu, sbridge_cpuids); + /* - * sbridge_probe Probe for ONE instance of device to see if it is + * sbridge_probe Get all devices and register memory controllers * present. * return: * 0 for FOUND a device * < 0 for error code */ -static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) +static int sbridge_probe(const struct x86_cpu_id *id) { int rc = -ENODEV; u8 mc, num_mc = 0; struct sbridge_dev *sbridge_dev; - enum type type = SANDY_BRIDGE; + struct pci_id_table *ptable = (struct pci_id_table *)id->driver_data; /* get the pci devices we want to reserve for our use */ - mutex_lock(&sbridge_edac_lock); + rc = sbridge_get_all_devices(&num_mc, ptable); - /* - * All memory controllers are allocated at the first pass. - */ - if (unlikely(probed >= 1)) { - mutex_unlock(&sbridge_edac_lock); - return -ENODEV; - } - probed++; - - switch (pdev->device) { - case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA: - rc = sbridge_get_all_devices(&num_mc, - pci_dev_descr_ibridge_table); - type = IVY_BRIDGE; - break; - case PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0: - rc = sbridge_get_all_devices(&num_mc, - pci_dev_descr_sbridge_table); - type = SANDY_BRIDGE; - break; - case PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0: - rc = sbridge_get_all_devices(&num_mc, - pci_dev_descr_haswell_table); - type = HASWELL; - break; - case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0: - rc = sbridge_get_all_devices(&num_mc, - pci_dev_descr_broadwell_table); - type = BROADWELL; - break; - case PCI_DEVICE_ID_INTEL_KNL_IMC_SAD0: - rc = sbridge_get_all_devices_knl(&num_mc, - pci_dev_descr_knl_table); - type = KNIGHTS_LANDING; - break; - } if (unlikely(rc < 0)) { - edac_dbg(0, "couldn't get all devices for 0x%x\n", pdev->device); + edac_dbg(0, "couldn't get all devices\n"); goto fail0; } @@ -3410,14 +3376,13 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) mc, mc + 1, num_mc); sbridge_dev->mc = mc++; - rc = sbridge_register_mci(sbridge_dev, type); + rc = sbridge_register_mci(sbridge_dev, id - sbridge_cpuids); if (unlikely(rc < 0)) goto fail1; } sbridge_printk(KERN_INFO, "%s\n", SBRIDGE_REVISION); - mutex_unlock(&sbridge_edac_lock); return 0; fail1: @@ -3426,74 +3391,47 @@ fail1: sbridge_put_all_devices(); fail0: - mutex_unlock(&sbridge_edac_lock); return rc; } /* - * sbridge_remove destructor for one instance of device + * sbridge_remove cleanup * */ -static void sbridge_remove(struct pci_dev *pdev) +static void sbridge_remove(void) { struct sbridge_dev *sbridge_dev; edac_dbg(0, "\n"); - /* - * we have a trouble here: pdev value for removal will be wrong, since - * it will point to the X58 register used to detect that the machine - * is a Nehalem or upper design. However, due to the way several PCI - * devices are grouped together to provide MC functionality, we need - * to use a different method for releasing the devices - */ - - mutex_lock(&sbridge_edac_lock); - - if (unlikely(!probed)) { - mutex_unlock(&sbridge_edac_lock); - return; - } - list_for_each_entry(sbridge_dev, &sbridge_edac_list, list) sbridge_unregister_mci(sbridge_dev); /* Release PCI resources */ sbridge_put_all_devices(); - - probed--; - - mutex_unlock(&sbridge_edac_lock); } -MODULE_DEVICE_TABLE(pci, sbridge_pci_tbl); - -/* - * sbridge_driver pci_driver structure for this module - * - */ -static struct pci_driver sbridge_driver = { - .name = "sbridge_edac", - .probe = sbridge_probe, - .remove = sbridge_remove, - .id_table = sbridge_pci_tbl, -}; - /* * sbridge_init Module entry function * Try to initialize this module for its devices */ static int __init sbridge_init(void) { - int pci_rc; + const struct x86_cpu_id *id; + int rc; edac_dbg(2, "\n"); + id = x86_match_cpu(sbridge_cpuids); + if (!id) + return -ENODEV; + /* Ensure that the OPSTATE is set correctly for POLL or NMI */ opstate_init(); - pci_rc = pci_register_driver(&sbridge_driver); - if (pci_rc >= 0) { + rc = sbridge_probe(id); + + if (rc >= 0) { mce_register_decode_chain(&sbridge_mce_dec); if (get_edac_report_status() == EDAC_REPORTING_DISABLED) sbridge_printk(KERN_WARNING, "Loading driver, error reporting disabled.\n"); @@ -3501,9 +3439,9 @@ static int __init sbridge_init(void) } sbridge_printk(KERN_ERR, "Failed to register device with error %d.\n", - pci_rc); + rc); - return pci_rc; + return rc; } /* @@ -3513,7 +3451,7 @@ static int __init sbridge_init(void) static void __exit sbridge_exit(void) { edac_dbg(2, "\n"); - pci_unregister_driver(&sbridge_driver); + sbridge_remove(); mce_unregister_decode_chain(&sbridge_mce_dec); } |