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drm/i915: Only hold a process-local lock whilst throttling.

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Avoid cause latencies in other clients by not taking the global struct
mutex and moving the per-client request manipulation a local per-client
mutex. For example, this allows a compositor to schedule a page-flip
(through X) whilst an OpenGL application is monopolising the GPU.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2010-09-24 16:02:42 +01:00
parent 27d64339a8
commit f787a5f59e
8 changed files with 123 additions and 92 deletions
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5
drivers/gpu/drm/i915/intel_ringbuffer.h
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@ -58,10 +58,9 @@ struct intel_ring_buffer {
u32 flush_domains);
u32 (*add_request)(struct drm_device *dev,
struct intel_ring_buffer *ring,
struct drm_file *file_priv,
u32 flush_domains);
u32 (*get_gem_seqno)(struct drm_device *dev,
struct intel_ring_buffer *ring);
u32 (*get_seqno)(struct drm_device *dev,
struct intel_ring_buffer *ring);
int (*dispatch_gem_execbuffer)(struct drm_device *dev,
struct intel_ring_buffer *ring,
struct drm_i915_gem_execbuffer2 *exec,