linux-kernel - [PATCH AUTOSEL 6.4 17/17] drm/amd/pm: Fix temperature unit of SMU v13.0.6

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Date:   Tue, 29 Aug 2023 09:32:04 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Lijo Lazar <lijo.lazar@....com>,
        Yang Wang <kevinyang.wang@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, evan.quan@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
        daniel@...ll.ch, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.4 17/17] drm/amd/pm: Fix temperature unit of SMU v13.0.6

From: Lijo Lazar <lijo.lazar@....com>

[ Upstream commit 8d036427f0042a91136e6f19a39542eedec4e96c ]

Temperature needs to be reported in millidegree Celsius.

Signed-off-by: Lijo Lazar <lijo.lazar@....com>
Reviewed-by: Yang Wang <kevinyang.wang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index c9093517b1bda..bfa020fe0d4fe 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -697,16 +697,19 @@ static int smu_v13_0_6_get_smu_metrics_data(struct smu_context *smu,
 		*value = SMUQ10_TO_UINT(metrics->SocketPower) << 8;
 		break;
 	case METRICS_TEMPERATURE_HOTSPOT:
-		*value = SMUQ10_TO_UINT(metrics->MaxSocketTemperature);
+		*value = SMUQ10_TO_UINT(metrics->MaxSocketTemperature) *
+			 SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
 		break;
 	case METRICS_TEMPERATURE_MEM:
-		*value = SMUQ10_TO_UINT(metrics->MaxHbmTemperature);
+		*value = SMUQ10_TO_UINT(metrics->MaxHbmTemperature) *
+			 SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
 		break;
 	/* This is the max of all VRs and not just SOC VR.
 	 * No need to define another data type for the same.
 	 */
 	case METRICS_TEMPERATURE_VRSOC:
-		*value = SMUQ10_TO_UINT(metrics->MaxVrTemperature);
+		*value = SMUQ10_TO_UINT(metrics->MaxVrTemperature) *
+			 SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
 		break;
 	case METRICS_THROTTLER_STATUS:
 		*value = smu_v13_0_6_get_throttler_status(smu, metrics);
-- 
2.40.1