[Intel-gfx] [PATCH 2/2] drm/i915/dmabuf: drop the flush on discrete

[Matthew Auld]

We were overzealous here; even though discrete is non-LLC, it should
still be always coherent.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index a45d0ec2c5b6..848e81368043 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
@@ -251,7 +251,8 @@ static int i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj)
 		return PTR_ERR(pages);
 
 	/* XXX: consider doing a vmap flush or something */
-	if (!HAS_LLC(i915) || i915_gem_object_can_bypass_llc(obj))
+	if ((!HAS_LLC(i915) && !IS_DGFX(i915)) ||
+	    i915_gem_object_can_bypass_llc(obj))
 		wbinvd_on_all_cpus();
 
 	sg_page_sizes = i915_sg_dma_sizes(pages->sgl);
-- 
2.26.3