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drm/radeon: add a GPU reset counter queryable by userspace

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Userspace will be able to tell whether a GPU reset occured by comparing
an old referece value of the counter with a new value.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2015-04-29 19:40:33 +02:00 • committed by Alex Deucher
commit 72b9076b28
5 changed files with 9 additions and 1 deletions
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include/uapi/drm/radeon_drm.h
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@ -1038,6 +1038,7 @@ struct drm_radeon_cs {
#define RADEON_INFO_CURRENT_GPU_SCLK 0x22
#define RADEON_INFO_CURRENT_GPU_MCLK 0x23
#define RADEON_INFO_READ_REG 0x24
#define RADEON_INFO_GPU_RESET_COUNTER 0x25
struct drm_radeon_info {
uint32_t request;