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authorChris Wilson <chris@chris-wilson.co.uk>2016-10-28 13:58:53 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2016-10-28 20:53:54 +0100
commit85e17f5974b357bc4a127be09de71b430be265e0 (patch)
tree5039cbf409c2481f3a5bba1e76774b1b1d92e64b /drivers/gpu/drm/i915/i915_gem_timeline.h
parentcaddfe7192f5e74d65ebcfdae614f99e8fd87222 (diff)
drm/i915: Move the global sync optimisation to the timeline
Currently we try to reduce the number of synchronisations (now the number of requests we need to wait upon) by noting that if we have earlier waited upon a request, all subsequent requests in the timeline will be after the wait. This only applies to requests in this timeline, as other timelines will not be ordered by that waiter. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-30-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_timeline.h')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_timeline.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_timeline.h b/drivers/gpu/drm/i915/i915_gem_timeline.h
index bfdf0331cc50..767b23914ec5 100644
--- a/drivers/gpu/drm/i915/i915_gem_timeline.h
+++ b/drivers/gpu/drm/i915/i915_gem_timeline.h
@@ -48,6 +48,7 @@ struct intel_timeline {
* struct_mutex.
*/
struct i915_gem_active last_request;
+ u32 sync_seqno[I915_NUM_ENGINES];
struct i915_gem_timeline *common;
};