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>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 46eb0fa..352870c 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2435,6 +2435,7 @@
atomic64_t vram_usage;
atomic64_t gtt_usage;
atomic64_t num_bytes_moved;
+ atomic_t gpu_reset_counter;
/* ACPI interface */
struct radeon_atif atif;
struct radeon_atcs atcs;