linux-kernel - [PATCH v4 1/3] peci: cpu: Add Intel Sapphire Rapids support

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Message-ID: <20230725104354.33920-1-Naresh.Solanki@9elements.com>
Date:   Tue, 25 Jul 2023 12:43:51 +0200
From:   Naresh Solanki <naresh.solanki@...ements.com>
To:     linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        iwona.winiarska@...el.com, linux@...ck-us.net, jdelvare@...e.com
Cc:     Naresh Solanki <Naresh.Solanki@...ements.com>,
        Patrick Rudolph <patrick.rudolph@...ements.com>,
        openbmc@...ts.ozlabs.org
Subject: [PATCH v4 1/3] peci: cpu: Add Intel Sapphire Rapids support

Add support for detection of Intel Sapphire Rapids processor based on
CPU family & model.

Sapphire Rapids Xeon processors with the family set to 6 and the
model set to INTEL_FAM6_SAPPHIRERAPIDS_X. The data field for this entry
is "spr".

Tested the patch series with AST2600 BMC with 4S Intel Sapphire Rapids
processors & verified by reading cpu & dimm temperature.

Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
Reviewed-by: Iwona Winiarska <iwona.winiarska@...el.com>
---
Changes in V3:
- Move spr entry at end of struct peci_cpu_device_ids
- Mention test with the patch.
Changes in V2:
- Refactored from previous patchset as seperate patch based on subsystem.
---
 drivers/peci/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/peci/cpu.c b/drivers/peci/cpu.c
index de4a7b3e5966..bd990acd92b8 100644
--- a/drivers/peci/cpu.c
+++ b/drivers/peci/cpu.c
@@ -323,6 +323,11 @@ static const struct peci_device_id peci_cpu_device_ids[] = {
 		.model	= INTEL_FAM6_ICELAKE_D,
 		.data	= "icxd",
 	},
+	{ /* Sapphire Rapids Xeon */
+		.family	= 6,
+		.model	= INTEL_FAM6_SAPPHIRERAPIDS_X,
+		.data	= "spr",
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(peci, peci_cpu_device_ids);

base-commit: 55612007f16b5d7b1fb83a7b0f5bb686829db7c7
-- 
2.41.0