[Intel-gfx] [PATCH 12/14] drm/i915: fall back to shmem pwrite when the buffer is not accessible

[Daniel Vetter]

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

Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_gem.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e7f76f1..48bef0b 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -788,6 +788,7 @@ 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
-- 
1.7.7.5