diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 1ab842c6032..536191540b0 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c | |||
@@ -301,7 +301,7 @@ static int init_ring_common(struct intel_ring_buffer *ring) | |||
301 | 301 | ||
302 | I915_WRITE_CTL(ring, | 302 | I915_WRITE_CTL(ring, |
303 | ((ring->size - PAGE_SIZE) & RING_NR_PAGES) | 303 | ((ring->size - PAGE_SIZE) & RING_NR_PAGES) |
304 | | RING_REPORT_64K | RING_VALID); | 304 | | RING_VALID); |
305 | 305 | ||
306 | /* If the head is still not zero, the ring is dead */ | 306 | /* If the head is still not zero, the ring is dead */ |
307 | if ((I915_READ_CTL(ring) & RING_VALID) == 0 || | 307 | if ((I915_READ_CTL(ring) & RING_VALID) == 0 || |
@@ -1132,18 +1132,6 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n) | |||
1132 | struct drm_device *dev = ring->dev; | 1132 | struct drm_device *dev = ring->dev; |
1133 | struct drm_i915_private *dev_priv = dev->dev_private; | 1133 | struct drm_i915_private *dev_priv = dev->dev_private; |
1134 | unsigned long end; | 1134 | unsigned long end; |
1135 | u32 head; | ||
1136 | |||
1137 | /* If the reported head position has wrapped or hasn't advanced, | ||
1138 | * fallback to the slow and accurate path. | ||
1139 | */ | ||
1140 | head = intel_read_status_page(ring, 4); | ||
1141 | if (head > ring->head) { | ||
1142 | ring->head = head; | ||
1143 | ring->space = ring_space(ring); | ||
1144 | if (ring->space >= n) | ||
1145 | return 0; | ||
1146 | } | ||
1147 | 1135 | ||
1148 | trace_i915_ring_wait_begin(ring); | 1136 | trace_i915_ring_wait_begin(ring); |
1149 | if (drm_core_check_feature(dev, DRIVER_GEM)) | 1137 | if (drm_core_check_feature(dev, DRIVER_GEM)) |