[PATCH 1/2] drm/amdgpu: Expose more GPU sensor queries

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Add sub-queries for stable pstate shader/memory clock.

Change-Id: I2e524ec28dff1e679bee93718d8ceb468f7f6d22
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 18 ++++++++++++++++++
 include/uapi/drm/amdgpu_drm.h           |  4 ++++
 2 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 0bdb194..5fec850 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -758,6 +758,24 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 				return -EINVAL;
 			}
 			break;
+		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_SCLK:
+			/* get sclk in Mhz */
+			if (amdgpu_dpm_read_sensor(adev,
+						   AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK,
+						   (void *)&ui32, &ui32_size)) {
+				return -EINVAL;
+			}
+			ui32 /= 100;
+			break;
+		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_MCLK:
+			/* get mclk in Mhz */
+			if (amdgpu_dpm_read_sensor(adev,
+						   AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK,
+						   (void *)&ui32, &ui32_size)) {
+				return -EINVAL;
+			}
+			ui32 /= 100;
+			break;
 		default:
 			DRM_DEBUG_KMS("Invalid request %d\n",
 				      info->sensor_info.type);
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 1dc8089b..fe17b67 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -667,6 +667,10 @@ struct drm_amdgpu_cs_chunk_data {
 	#define AMDGPU_INFO_SENSOR_VDDNB		0x6
 	/* Subquery id: Query graphics voltage */
 	#define AMDGPU_INFO_SENSOR_VDDGFX		0x7
+	/* Subquery id: Query GPU stable pstate shader clock */
+	#define AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_SCLK		0x8
+	/* Subquery id: Query GPU stable pstate memory clock */
+	#define AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_MCLK		0x9
 /* Number of VRAM page faults on CPU access. */
 #define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS	0x1E
 #define AMDGPU_INFO_VRAM_LOST_COUNTER		0x1F
-- 
1.9.1



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