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Commit 3ae53783 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: don't use gtt_pwrite on LLC cached objects 



~120 µs instead fo ~210 µs to write 1mb on my snb. I like this.

Tested-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent a0356fc3

drivers/gpu/drm/i915/i915_gem.c

+1 −0
Original line number Diff line number Diff line
@@ -808,6 +808,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, 
	}



	if (obj->gtt_space &&

	    obj->cache_level == I915_CACHE_NONE &&

	    obj->base.write_domain != I915_GEM_DOMAIN_CPU) {

		ret = i915_gem_object_pin(obj, 0, true);

		if (ret)