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drm/radeon: add INFO query for current sclk/mclk 

Allow the UMDs to query the current sclk/mclk
for profiling, etc.

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 11:33:30 -04:00
parent 9b23bad032
commit 5c363a8603
2 changed files with 16 additions and 0 deletions
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14
drivers/gpu/drm/radeon/radeon_kms.c
View File

@ -554,6 +554,20 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
else
*value = 0;
break;
case RADEON_INFO_CURRENT_GPU_SCLK:
/* get sclk in Mhz */
if (rdev->pm.dpm_enabled)
*value = radeon_dpm_get_current_sclk(rdev) / 100;
else
*value = rdev->pm.current_sclk / 100;
break;
case RADEON_INFO_CURRENT_GPU_MCLK:
/* get mclk in Mhz */
if (rdev->pm.dpm_enabled)
*value = radeon_dpm_get_current_mclk(rdev) / 100;
else
*value = rdev->pm.current_mclk / 100;
break;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL;

2
include/uapi/drm/radeon_drm.h
View File

@ -1035,6 +1035,8 @@ struct drm_radeon_cs {
#define RADEON_INFO_GTT_USAGE 0x1f
#define RADEON_INFO_ACTIVE_CU_COUNT 0x20
#define RADEON_INFO_CURRENT_GPU_TEMP 0x21
#define RADEON_INFO_CURRENT_GPU_SCLK 0x22
#define RADEON_INFO_CURRENT_GPU_MCLK 0x23
struct drm_radeon_info {
uint32_t request;