On 03/06/16 17:08, Chris Wilson wrote:
With the last direct CPU access to the scratch page removed, we can now
allocate it from our small amount of reserved system pages (stolen
memory).
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 106f40c52bb5..b7eebbed945d 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -660,7 +660,9 @@ int intel_init_pipe_control(struct intel_engine_cs *engine)
WARN_ON(engine->scratch.obj);
- obj = i915_gem_object_create(engine->i915->dev, 4096);
+ obj = i915_gem_object_create_stolen(engine->i915->dev, 4096);
+ if (obj == NULL)
+ obj = i915_gem_object_create(engine->i915->dev, 4096);
if (IS_ERR(obj)) {
DRM_ERROR("Failed to allocate scratch page\n");
ret = PTR_ERR(obj);
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Regards,
Tvrtko
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