Commit ffc62976 authored Mar 25, 2012 by Daniel Vetter

drm/i915: fall back to shmem pwrite when the buffer is not accessible



It's too expensive to move it around just for that pwrite, especially
when we're trashing on the mappable gtt part like crazy.

Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 58642885

drivers/gpu/drm/i915/i915_gem.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -771,6 +771,7 @@ i915_gem_pwrite_ioctl(struct drm_device dev, void data,

		if (obj->gtt_space &&
		obj->cache_level == I915_CACHE_NONE &&
		obj->map_and_fenceable &&
		obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
		ret = i915_gem_gtt_pwrite_fast(dev, obj, args, file);
		/* Note that the gtt paths might fail with non-page-backed user