diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-08-05 04:35:27 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-10-31 21:10:05 +0400 |
| commit | 27100db0e0d381d24b6f3cb1a4f439996e7c00c8 (patch) | |
| tree | 2c7912241ae5e74ee3935bd5d6a23a0d15b29515 /drivers/edac/i7core_edac.c | |
| parent | e8b6a1271035e621d1c4b22403c697b5c969728c (diff) | |
| download | linux-27100db0e0d381d24b6f3cb1a4f439996e7c00c8.tar.xz | |
i7core_edac: Don't enable memory scrubbing for Xeon 35xx
Xeon 35xx doesn't mention memory scrub. It seems that only Xeon 55xx
and above supports it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/edac/i7core_edac.c')
| -rw-r--r-- | drivers/edac/i7core_edac.c | 46 |
1 files changed, 39 insertions, 7 deletions
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c index 0c02486cf57a..aeb01f42ffef 100644 --- a/drivers/edac/i7core_edac.c +++ b/drivers/edac/i7core_edac.c @@ -263,7 +263,7 @@ struct i7core_pvt { unsigned long rdimm_ce_count[NUM_CHANS][MAX_DIMMS]; int rdimm_last_ce_count[NUM_CHANS][MAX_DIMMS]; - unsigned int is_registered; + bool is_registered, enable_scrub; /* mcelog glue */ struct edac_mce edac_mce; @@ -1487,8 +1487,10 @@ static int mci_bind_devs(struct mem_ctl_info *mci, struct i7core_pvt *pvt = mci->pvt_info; struct pci_dev *pdev; int i, func, slot; + char *family; - pvt->is_registered = 0; + pvt->is_registered = false; + pvt->enable_scrub = false; for (i = 0; i < i7core_dev->n_devs; i++) { pdev = i7core_dev->pdev[i]; if (!pdev) @@ -1504,9 +1506,37 @@ static int mci_bind_devs(struct mem_ctl_info *mci, if (unlikely(func > MAX_CHAN_FUNC)) goto error; pvt->pci_ch[slot - 4][func] = pdev; - } else if (!slot && !func) + } else if (!slot && !func) { pvt->pci_noncore = pdev; - else + + /* Detect the processor family */ + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_I7_NONCORE: + family = "Xeon 35xx/ i7core"; + pvt->enable_scrub = false; + break; + case PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_ALT: + family = "i7-800/i5-700"; + pvt->enable_scrub = false; + break; + case PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE: + family = "Xeon 34xx"; + pvt->enable_scrub = false; + break; + case PCI_DEVICE_ID_INTEL_I7_NONCORE_ALT: + family = "Xeon 55xx"; + pvt->enable_scrub = true; + break; + case PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_REV2: + family = "Xeon 56xx / i7-900"; + pvt->enable_scrub = true; + break; + default: + family = "unknown"; + pvt->enable_scrub = false; + } + debugf0("Detected a processor type %s\n", family); + } else goto error; debugf0("Associated fn %d.%d, dev = %p, socket %d\n", @@ -1515,7 +1545,7 @@ static int mci_bind_devs(struct mem_ctl_info *mci, if (PCI_SLOT(pdev->devfn) == 3 && PCI_FUNC(pdev->devfn) == 2) - pvt->is_registered = 1; + pvt->is_registered = true; } return 0; @@ -2060,7 +2090,8 @@ static void i7core_unregister_mci(struct i7core_dev *i7core_dev) __func__, mci, &i7core_dev->pdev[0]->dev); /* Disable scrubrate setting */ - disable_sdram_scrub_setting(mci); + if (pvt->enable_scrub) + disable_sdram_scrub_setting(mci); /* Disable MCE NMI handler */ edac_mce_unregister(&pvt->edac_mce); @@ -2136,7 +2167,8 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev) mci->edac_check = i7core_check_error; /* Enable scrubrate setting */ - enable_sdram_scrub_setting(mci); + if (pvt->enable_scrub) + enable_sdram_scrub_setting(mci); /* add this new MC control structure to EDAC's list of MCs */ if (unlikely(edac_mc_add_mc(mci))) { |