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drm/radeon: add support for read reg query from radeon info ioctl

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This allows us to query certain registers from userspace
for profiling and harvest configuration.  E.g., it can
be used by the GALLIUM_HUD for profiling the status of
various gfx blocks.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-10-01 11:26:50 -04:00
commit 4535cb9cef
2 changed files with 9 additions and 0 deletions
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include/uapi/drm/radeon_drm.h
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@ -1037,6 +1037,7 @@ struct drm_radeon_cs {
#define RADEON_INFO_CURRENT_GPU_TEMP 0x21
#define RADEON_INFO_CURRENT_GPU_SCLK 0x22
#define RADEON_INFO_CURRENT_GPU_MCLK 0x23
#define RADEON_INFO_READ_REG 0x24
struct drm_radeon_info {
uint32_t request;