As a safety precaution, whilst we operate on the object's pages (clflushing them, updating the LRU) make sure we hold a pin on those pages to prevent them disappearing underneath us. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index de895c7ef9e6..e601b74c19f9 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3251,6 +3251,7 @@ i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) if (ret) return ret; + i915_gem_object_pin_pages(obj); i915_gem_object_flush_cpu_write_domain(obj); /* Serialise direct access to this object with the barriers for @@ -3280,6 +3281,7 @@ i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) /* And bump the LRU for this access */ i915_gem_object_bump_inactive_ggtt(obj); + i915_gem_object_unpin_pages(obj); return 0; } -- 2.9.3 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
