drm/v3d: Invalidate the caches from the outside in. (aa5beec3) · Commits · 戴 / test

This would be a fairly obscure race, but let's make sure we don't ever lose it. Signed-off-by:

drivers/gpu/drm/v3d/v3d_gem.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -171,11 +171,15 @@ v3d_invalidate_slices(struct v3d_dev *v3d, int core)
		void
		v3d_invalidate_caches(struct v3d_dev *v3d)
		{
		/* Invalidate the caches from the outside in. That way if
		* another CL's concurrent use of nearby memory were to pull
		* an invalidated cacheline back in, we wouldn't leave stale
		* data in the inner cache.
		*/
		v3d_flush_l3(v3d);

		v3d_invalidate_l2c(v3d, 0);
		v3d_invalidate_slices(v3d, 0);
		v3d_flush_l2t(v3d, 0);
		v3d_invalidate_slices(v3d, 0);
		}

		static void