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drm/i915: Handle ringbuffer stalls when flushing

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2011-01-04 17:34:02 +00:00
parent 63256ec534
commit b72f3acb71
4 changed files with 68 additions and 46 deletions
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12
drivers/gpu/drm/i915/i915_gem_execbuffer.c
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@@ -924,7 +924,7 @@ i915_gem_execbuffer_retire_commands(struct drm_device *dev,
struct intel_ring_buffer *ring)
{
struct drm_i915_gem_request *request;
u32 flush_domains;
u32 invalidate;
/*
* Ensure that the commands in the batch buffer are
@@ -932,11 +932,13 @@ i915_gem_execbuffer_retire_commands(struct drm_device *dev,
*
* The sampler always gets flushed on i965 (sigh).
*/
flush_domains = 0;
invalidate = I915_GEM_DOMAIN_COMMAND;
if (INTEL_INFO(dev)->gen >= 4)
flush_domains |= I915_GEM_DOMAIN_SAMPLER;
ring->flush(ring, I915_GEM_DOMAIN_COMMAND, flush_domains);
invalidate |= I915_GEM_DOMAIN_SAMPLER;
if (ring->flush(ring, invalidate, 0)) {
i915_gem_next_request_seqno(dev, ring);
return;
}
/* Add a breadcrumb for the completion of the batch buffer */
request = kzalloc(sizeof(*request), GFP_KERNEL);