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drm/radeon: improve ring lockup detection code v2

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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>
This commit is contained in:
Christian König
2014-02-18 15:24:06 +01:00
parent 4d538b7919
commit aee4aa73a1
2 changed files with 12 additions and 15 deletions
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4
drivers/gpu/drm/radeon/radeon.h
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@@ -805,8 +805,8 @@ struct radeon_ring {
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;