drm/radeon: improve ring lockup detection code v2
Use atomics and jiffies_64, so that we don't need to have the
ring mutex locked any more and avoid wrap arounds.
v2: fix some checkpatch warnings
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 4581df1..e98fe5c 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -805,8 +805,8 @@
unsigned ring_size;
unsigned ring_free_dw;
int count_dw;
- unsigned long last_activity;
- unsigned last_rptr;
+ atomic_t last_rptr;
+ atomic64_t last_activity;
uint64_t gpu_addr;
uint32_t align_mask;
uint32_t ptr_mask;