diff options
| author | Marek Olšák <marek.olsak@amd.com> | 2015-04-29 19:40:33 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-05-26 10:31:19 -0400 |
| commit | 72b9076b2887add930d3b102760f09d02ffbfbe7 (patch) | |
| tree | 8eba67d708f9d5c79661d65fc72122fe5f2ac241 /drivers/gpu/drm/radeon/radeon_kms.c | |
| parent | c6e7e4bb7ff988e7f915526a80ea866d84aac720 (diff) | |
drm/radeon: add a GPU reset counter queryable by userspace
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 7b2a7335cc5d..9632e886ddc3 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -576,6 +576,9 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (radeon_get_allowed_info_register(rdev, *value, value)) return -EINVAL; break; + case RADEON_INFO_GPU_RESET_COUNTER: + *value = atomic_read(&rdev->gpu_reset_counter); + break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL; |