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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-02 15:25:25 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-03 01:33:41 +0300 |
| commit | c8659efac544b7df1106022d78617a1ca1d9a38c (patch) | |
| tree | 4771b2d5c9bd358f42d4cdb058b4fb9dcc2c1894 /drivers/gpu/drm/i915/i915_gem_request.h | |
| parent | 5be6e33400992d3450e1c8234a5af353e1560580 (diff) | |
| download | linux-c8659efac544b7df1106022d78617a1ca1d9a38c.tar.xz | |
drm/i915: Drop spinlocks around adding to the client request list
Adding to the tail of the client request list as the only other user is
in the throttle ioctl that iterates forwards over the list. It only
needs protection against deletion of a request as it reads it, it simply
won't see a new request added to the end of the list, or it would be too
early and rejected. We can further reduce the number of spinlocks
required when throttling by removing stale requests from the client_list
as we throttle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170302122525.19675-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_request.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_request.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_request.h b/drivers/gpu/drm/i915/i915_gem_request.h index 0efee879df23..5018e55922f0 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.h +++ b/drivers/gpu/drm/i915/i915_gem_request.h @@ -180,7 +180,7 @@ struct drm_i915_gem_request { struct drm_i915_file_private *file_priv; /** file_priv list entry for this request */ - struct list_head client_list; + struct list_head client_link; }; extern const struct dma_fence_ops i915_fence_ops; @@ -193,8 +193,6 @@ static inline bool dma_fence_is_i915(const struct dma_fence *fence) struct drm_i915_gem_request * __must_check i915_gem_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx); -int i915_gem_request_add_to_client(struct drm_i915_gem_request *req, - struct drm_file *file); void i915_gem_request_retire_upto(struct drm_i915_gem_request *req); static inline struct drm_i915_gem_request * |