From: "Ghannam, Yazen" <Yazen.Ghannam@amd.com>
To: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: "Ghannam, Yazen" <Yazen.Ghannam@amd.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"bp@alien8.de" <bp@alien8.de>
Subject: [RFC PATCH v3 09/10] EDAC/amd64: Use cached data when checking for ECC
Date: Thu, 22 Aug 2019 00:00:03 +0000 [thread overview]
Message-ID: <20190821235938.118710-10-Yazen.Ghannam@amd.com> (raw)
In-Reply-To: <20190821235938.118710-1-Yazen.Ghannam@amd.com>
From: Yazen Ghannam <yazen.ghannam@amd.com>
...now that the data is available earlier.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
---
drivers/edac/amd64_edac.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 84832771dec0..c1cb0234f085 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3183,31 +3183,27 @@ 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);
}
@@ -3220,7 +3216,7 @@ 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);
@@ -3539,7 +3535,7 @@ 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)
--
2.17.1
next prev parent reply other threads:[~2019-08-22 0:00 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-21 23:59 [PATCH v3 0/8] AMD64 EDAC fixes Ghannam, Yazen
2019-08-21 23:59 ` [PATCH v3 1/8] EDAC/amd64: Support more than two controllers for chip selects handling Ghannam, Yazen
2019-08-21 23:59 ` [PATCH v3 2/8] EDAC/amd64: Recognize DRAM device type with EDAC_CTL_CAP Ghannam, Yazen
2019-08-21 23:59 ` [PATCH v3 3/8] EDAC/amd64: Initialize DIMM info for systems with more than two channels Ghannam, Yazen
2019-08-21 23:59 ` [PATCH v3 4/8] EDAC/amd64: Find Chip Select memory size using Address Mask Ghannam, Yazen
2019-08-22 0:00 ` [PATCH v3 5/8] EDAC/amd64: Decode syndrome before translating address Ghannam, Yazen
2019-08-22 0:00 ` [PATCH v3 6/8] EDAC/amd64: Cache secondary Chip Select registers Ghannam, Yazen
2019-08-22 0:00 ` [RFC PATCH v3 08/10] EDAC/amd64: Gather hardware information early Ghannam, Yazen
2019-08-29 9:22 ` Borislav Petkov
2019-09-06 19:14 ` Ghannam, Yazen
2019-09-06 20:35 ` Borislav Petkov
2019-09-06 20:49 ` Ghannam, Yazen
2019-09-09 15:31 ` Borislav Petkov
2019-08-22 0:00 ` [PATCH v3 7/8] EDAC/amd64: Support Asymmetric Dual-Rank DIMMs Ghannam, Yazen
2019-08-23 11:26 ` Borislav Petkov
2019-08-23 13:27 ` Ghannam, Yazen
2019-08-23 15:11 ` Borislav Petkov
2019-08-22 0:00 ` [RFC PATCH v3 10/10] EDAC/amd64: Check for memory before fully initializing an instance Ghannam, Yazen
2019-08-22 18:51 ` [RFC PATCH v2] " Ghannam, Yazen
2019-08-22 0:00 ` Ghannam, Yazen [this message]
2019-08-22 0:50 ` [PATCH v3 0/8] AMD64 EDAC fixes Adam Borowski
2019-08-22 8:35 ` Borislav Petkov
2019-08-22 9:46 ` Adam Borowski
2019-08-22 9:55 ` Borislav Petkov
2019-08-22 18:54 ` Ghannam, Yazen
2019-08-23 15:28 ` Ghannam, Yazen
2019-08-23 15:37 ` Borislav Petkov
2019-08-26 14:19 ` Ghannam, Yazen
2019-08-26 14:59 ` Borislav Petkov
2019-08-26 15:05 ` Ghannam, Yazen
2019-08-22 18:48 ` [RFC PATCH v2] EDAC/amd64: Check for memory before fully initializing an instance Ghannam, Yazen
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