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drm/radeon: add query to fetch the max engine clock (v2)

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This is needed for reporting the max GPU engine clock
in OpenCL.  This just reports the max possible engine
clock, it does not take into account current conditions
that may limit that clock.

v2: fix query number for merge with 3.13

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-01-20 18:20:29 -05:00
commit f5f1f897c8
3 changed files with 15 additions and 8 deletions
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2
include/uapi/drm/radeon_drm.h
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@ -985,6 +985,8 @@ struct drm_radeon_cs {
#define RADEON_INFO_CIK_MACROTILE_MODE_ARRAY 0x18
/* query the number of render backends */
#define RADEON_INFO_SI_BACKEND_ENABLED_MASK 0x19
/* max engine clock - needed for OpenCL */
#define RADEON_INFO_MAX_SCLK 0x1a
struct drm_radeon_info {