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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2018-06-29 08:53:20 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-07-11 14:38:45 +0100 |
| commit | 655250a8d1aa3b18949a72869858d07ceac12799 (patch) | |
| tree | bf8fc60a9d4b678ca1d11fb8bed90d3e3c087072 /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | drm/i915/selftests: Add a safety net to live_workarounds (diff) | |
| download | linux-dev-655250a8d1aa3b18949a72869858d07ceac12799.tar.xz linux-dev-655250a8d1aa3b18949a72869858d07ceac12799.zip | |
drm/i915/execlists: Switch to rb_root_cached
The kernel recently gained an augmented rbtree with the purpose of
cacheing the leftmost element of the rbtree, a frequent optimisation to
avoid calls to rb_first() which is also employed by the
execlists->queue. Switch from our open-coded cache to the library.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180629075348.27358-9-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index ce6cc2a6cf7a..d1eee08e5f6b 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -292,12 +292,7 @@ struct intel_engine_execlists { /** * @queue: queue of requests, in priority lists */ - struct rb_root queue; - - /** - * @first: leftmost level in priority @queue - */ - struct rb_node *first; + struct rb_root_cached queue; /** * @csb_read: control register for Context Switch buffer |