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authorYazen Ghannam <yazen.ghannam@amd.com>2019-10-22 20:35:12 +0000
committerBorislav Petkov <bp@suse.de>2019-11-06 11:07:57 +0100
commit1c9b08bac5bf4f4825631c885eba84461e4eed79 (patch)
treed25a88aa45242d76702cc0f72ade153160babed4 /drivers/edac/amd64_edac.c
parent5e4c55276ae8758f5789722b384bb2ab3de3a24f (diff)
downloadlinux-1c9b08bac5bf4f4825631c885eba84461e4eed79.tar.bz2
EDAC/amd64: Use cached data when checking for ECC
...now that the data is available earlier. Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Robert Richter <rrichter@marvell.com> Cc: Tony Luck <tony.luck@intel.com> Link: https://lkml.kernel.org/r/20191106012448.243970-5-Yazen.Ghannam@amd.com
Diffstat (limited to 'drivers/edac/amd64_edac.c')
-rw-r--r--drivers/edac/amd64_edac.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 110ed0d27998..d38ba7f17753 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3202,31 +3202,27 @@ static const char *ecc_msg =
"'ecc_enable_override'.\n"
" (Note that use of the override may cause unknown side effects.)\n";
-static bool ecc_enabled(struct pci_dev *F3, u16 nid)
+static bool ecc_enabled(struct amd64_pvt *pvt)
{
+ u16 nid = pvt->mc_node_id;
bool nb_mce_en = false;
u8 ecc_en = 0, i;
u32 value;
if (boot_cpu_data.x86 >= 0x17) {
u8 umc_en_mask = 0, ecc_en_mask = 0;
+ struct amd64_umc *umc;
for_each_umc(i) {
- u32 base = get_umc_base(i);
+ umc = &pvt->umc[i];
/* Only check enabled UMCs. */
- if (amd_smn_read(nid, base + UMCCH_SDP_CTRL, &value))
- continue;
-
- if (!(value & UMC_SDP_INIT))
+ if (!(umc->sdp_ctrl & UMC_SDP_INIT))
continue;
umc_en_mask |= BIT(i);
- if (amd_smn_read(nid, base + UMCCH_UMC_CAP_HI, &value))
- continue;
-
- if (value & UMC_ECC_ENABLED)
+ if (umc->umc_cap_hi & UMC_ECC_ENABLED)
ecc_en_mask |= BIT(i);
}
@@ -3239,7 +3235,7 @@ static bool ecc_enabled(struct pci_dev *F3, u16 nid)
/* Assume UMC MCA banks are enabled. */
nb_mce_en = true;
} else {
- amd64_read_pci_cfg(F3, NBCFG, &value);
+ amd64_read_pci_cfg(pvt->F3, NBCFG, &value);
ecc_en = !!(value & NBCFG_ECC_ENABLE);
@@ -3524,7 +3520,7 @@ static int probe_one_instance(unsigned int nid)
if (ret < 0)
goto err_enable;
- if (!ecc_enabled(F3, nid)) {
+ if (!ecc_enabled(pvt)) {
ret = 0;
if (!ecc_enable_override)