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drm/radeon: add INFO query for GPU temperature

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Useful for profiling.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-09-30 10:04:40 -04:00
commit d6d2a1882a
2 changed files with 8 additions and 0 deletions
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7
drivers/gpu/drm/radeon/radeon_kms.c
View file

@ -547,6 +547,13 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
else else
*value = 1; *value = 1;
break; 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: default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request); DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL; return -EINVAL;

1
include/uapi/drm/radeon_drm.h
View file

@ -1034,6 +1034,7 @@ struct drm_radeon_cs {
#define RADEON_INFO_VRAM_USAGE 0x1e #define RADEON_INFO_VRAM_USAGE 0x1e
#define RADEON_INFO_GTT_USAGE 0x1f #define RADEON_INFO_GTT_USAGE 0x1f
#define RADEON_INFO_ACTIVE_CU_COUNT 0x20 #define RADEON_INFO_ACTIVE_CU_COUNT 0x20
#define RADEON_INFO_CURRENT_GPU_TEMP 0x21
struct drm_radeon_info { struct drm_radeon_info {
uint32_t request; uint32_t request;