Hi, Matt

On 10/21/21 14:53, Matthew Auld wrote:
We were overzealous here; even though discrete is non-LLC, it should
still be always coherent.

Signed-off-by: Matthew Auld <matthew.a...@intel.com>
Cc: Thomas Hellström <thomas.hellst...@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)) ||

Q: I notice that DG1 at least has HAS_SNOOP. Would it be incorrect to use that in this case?

/Thomas



+           i915_gem_object_can_bypass_llc(obj))
                wbinvd_on_all_cpus();
sg_page_sizes = i915_sg_dma_sizes(pages->sgl);

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