From 72b9076b2887add930d3b102760f09d02ffbfbe7 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Wed, 29 Apr 2015 19:40:33 +0200 Subject: drm/radeon: add a GPU reset counter queryable by userspace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Marek Olšák Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_kms.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/drm/radeon/radeon_kms.c') 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; -- cgit v1.2.3