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authorAlex Deucher <alexander.deucher@amd.com>2014-09-30 18:04:40 +0400
committerAlex Deucher <alexander.deucher@amd.com>2015-03-19 19:26:27 +0300
commitd6d2a1882a79c1a5425d6f82b2fc7b934916f893 (patch)
tree57d42a81db39f27a5bc5b8e1ca362aea98fbb64f
parentb9729b17a414f99c61f4db9ac9f9ed987fa0cbfe (diff)
downloadlinux-d6d2a1882a79c1a5425d6f82b2fc7b934916f893.tar.xz
drm/radeon: add INFO query for GPU temperature
Useful for profiling. Tested-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/radeon/radeon_kms.c7
-rw-r--r--include/uapi/drm/radeon_drm.h1
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 686411e4e4f6..7904887c6cc7 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -547,6 +547,13 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
else
*value = 1;
break;
+ case RADEON_INFO_CURRENT_GPU_TEMP:
+ /* get temperature in millidegrees C */
+ if (rdev->asic->pm.get_temperature)
+ *value = radeon_get_temperature(rdev);
+ else
+ *value = 0;
+ break;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL;
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 50d0fb41a3bf..66b1131bb296 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -1034,6 +1034,7 @@ struct drm_radeon_cs {
#define RADEON_INFO_VRAM_USAGE 0x1e
#define RADEON_INFO_GTT_USAGE 0x1f
#define RADEON_INFO_ACTIVE_CU_COUNT 0x20
+#define RADEON_INFO_CURRENT_GPU_TEMP 0x21
struct drm_radeon_info {
uint32_t request;