This includes shader/memory clocks, temperature, GPU load, etc.
v2: - add sub-queries for AMDPGU_INFO_GPU_SENSOR_*
- do not break the ABI
v3: - return -ENOENT when amdgpu_dpm == 0
- expose more sensor queries
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 75 +++++++++++++++++++++++++++++++++
include/uapi/drm/amdgpu_drm.h | 20 +++++++++
3 files changed, 97 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index f275a6b54e9f..e9d58aeb30fb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -59,9 +59,10 @@
* - 3.7.0 - Add support for VCE clock list packet
* - 3.8.0 - Add support raster config init in the kernel
* - 3.9.0 - Add support for memory query info about VRAM and GTT.
+ * - 3.10.0 - Add support for sensor query info (clocks, temp, etc).
*/
#define KMS_DRIVER_MAJOR 3
-#define KMS_DRIVER_MINOR 9
+#define KMS_DRIVER_MINOR 10
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index d5f9d6a4b661..8de57db99449 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -241,6 +241,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
uint32_t ui32 = 0;
uint64_t ui64 = 0;
int i, found;
+ int ui32_size = sizeof(ui32);
if (!info->return_size || !info->return_pointer)
return -EINVAL;
@@ -597,6 +598,80 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
return -EINVAL;
}
}
+ case AMDGPU_INFO_SENSOR: {
+ struct pp_gpu_power query = {0};
+ int size = sizeof(query);
+
+ if (amdgpu_dpm != 0)
+ return -ENOENT;
+
+ switch (info->sensor_info.type) {
+ case AMDGPU_INFO_SENSOR_GFX_SCLK:
+ /* get sclk in Mhz */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GFX_SCLK,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ ui32 /= 100;
+ break;
+ case AMDGPU_INFO_SENSOR_GFX_MCLK:
+ /* get mclk in Mhz */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GFX_MCLK,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ ui32 /= 100;
+ break;
+ case AMDGPU_INFO_SENSOR_GPU_TEMP:
+ /* get temperature in millidegrees C */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GPU_TEMP,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ break;
+ case AMDGPU_INFO_SENSOR_GPU_LOAD:
+ /* get GPU load */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GPU_LOAD,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ break;
+ case AMDGPU_INFO_SENSOR_GPU_POWER:
+ /* get average GPU power */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GPU_POWER,
+ (void *)&query, &size)) {
+ return -EINVAL;
+ }
+ ui32 = query.average_gpu_power >> 8;
+ break;
+ case AMDGPU_INFO_SENSOR_VDDNB:
+ /* get VDDNB in millivolts */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_VDDNB,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ break;
+ case AMDGPU_INFO_SENSOR_VDDGFX:
+ /* get VDDGFX in millivolts */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_VDDGFX,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
+ break;
+ default:
+ DRM_DEBUG_KMS("Invalid request %d\n",
+ info->sensor_info.type);
+ return -EINVAL;
+ }
+ return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
+ }
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->query);
return -EINVAL;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 07e3710f91cc..1a09d4f8cff5 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -534,6 +534,22 @@ struct drm_amdgpu_cs_chunk_data {
#define AMDGPU_INFO_VBIOS_IMAGE 0x2
/* Query UVD handles */
#define AMDGPU_INFO_NUM_HANDLES 0x1C
+/* Query sensor related information */
+#define AMDGPU_INFO_SENSOR 0x1D
+ /* Subquery id: Query GPU shader clock */
+ #define AMDGPU_INFO_SENSOR_GFX_SCLK 0x1
+ /* Subquery id: Query GPU memory clock */
+ #define AMDGPU_INFO_SENSOR_GFX_MCLK 0x2
+ /* Subquery id: Query GPU temperature */
+ #define AMDGPU_INFO_SENSOR_GPU_TEMP 0x3
+ /* Subquery id: Query GPU load */
+ #define AMDGPU_INFO_SENSOR_GPU_LOAD 0x4
+ /* Subquery id: Query average GPU power */
+ #define AMDGPU_INFO_SENSOR_GPU_POWER 0x5
+ /* Subquery id: Query VDDNB */
+ #define AMDGPU_INFO_SENSOR_VDDNB 0x6
+ /* Subquery id: Query VDDGFX */
+ #define AMDGPU_INFO_SENSOR_VDDGFX 0x7
#define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0
#define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff
@@ -597,6 +613,10 @@ struct drm_amdgpu_info {
__u32 type;
__u32 offset;
} vbios_info;
+
+ struct {
+ __u32 type;
+ } sensor_info;
};
};
--
2.11.1
