linux-kernel - [PATCH] EDAC/skx_common: Set the memory type correctly for HBM memory

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Date:   Tue, 20 Jul 2021 09:30:09 -0700
From:   "Luck, Tony" <tony.luck@...el.com>
To:     "Zhuo, Qiuxu" <qiuxu.zhuo@...el.com>
Cc:     Yazen Ghannam <yazen.ghannam@....com>,
        Naveen Krishna Chatradhi <nchatrad@....com>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bp@...en8.de" <bp@...en8.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "mchehab@...nel.org" <mchehab@...nel.org>
Subject: [PATCH] EDAC/skx_common: Set the memory type correctly for HBM memory

From: Qiuxu Zhuo <qiuxu.zhuo@...el.com>

Set the memory type to MEM_HBM2 if it's managed by the HBM2
memory controller.

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
Signed-off-by: Tony Luck <tony.luck@...el.com>
---
 drivers/edac/skx_common.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 5e83f59bef8a..f9120e36bf3a 100644
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -345,7 +345,10 @@ int skx_get_dimm_info(u32 mtr, u32 mcmtr, u32 amap, struct dimm_info *dimm,
 	rows = numrow(mtr);
 	cols = imc->hbm_mc ? 6 : numcol(mtr);
 
-	if (cfg->support_ddr5 && ((amap & 0x8) || imc->hbm_mc)) {
+	if (imc->hbm_mc) {
+		banks = 32;
+		mtype = MEM_HBM2;
+	} else if (cfg->support_ddr5 && (amap & 0x8)) {
 		banks = 32;
 		mtype = MEM_DDR5;
 	} else {
-- 
2.29.2