We need to clear the hw semaphore values explicitly.
Even if sync_seqnos are zero, there might still be
invalid values in the hw semaphores when we wrap.
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
drivers/gpu/drm/i915/i915_gem.c | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8dc5cc1..0231fdb 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1932,18 +1932,6 @@ i915_gem_handle_seqno_wrap(struct drm_device *dev)
struct intel_ring_buffer *ring;
int ret, i, j;
- /* The hardware uses various monotonic 32-bit counters, if we
- * detect that they will wraparound we need to idle the GPU
- * and reset those counters.
- */
- ret = 0;
- for_each_ring(ring, dev_priv, i) {
- for (j = 0; j < ARRAY_SIZE(ring->sync_seqno); j++)
- ret |= ring->sync_seqno[j] != 0;
- }
- if (ret == 0)
- return ret;
-
/* Carefully retire all requests without writing to the rings */
for_each_ring(ring, dev_priv, i) {
ret = intel_ring_idle(ring);
--
1.7.9.5
