Signed-off-by: Chris Wilson <[email protected]>
---
drivers/gpu/drm/i915/i915_gem.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index afdbbd9..b92e8ea 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3206,7 +3206,9 @@ i915_gem_object_set_cpu_read_domain_range(struct
drm_i915_gem_object *obj,
uint32_t old_read_domains;
int i, ret;
- if (offset == 0 && size == obj->base.size)
+ /* If we touch all pages, just move the bo entirely to the CPU. */
+ if ((offset & PAGE_MASK) == 0 &&
+ ALIGN(offset+size, PAGE_SIZE) == obj->base.size)
return i915_gem_object_set_to_cpu_domain(obj, 0);
ret = i915_gem_object_flush_gpu_write_domain(obj);
--
1.7.5.1
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
