From: Kui Wen <kui.wen@xxxxxxxxx>
For the device local-memory case, sgt.pfn will always be equal to zero,
since we instead use sgt.dma. Also, for device local-memory it is
perfectly valid for it to start from zero anyway, so no need to add a
new check for that either.
Signed-off-by: Kui Wen <kui.wen@xxxxxxxxx>
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_mm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_mm.c b/drivers/gpu/drm/i915/i915_mm.c
index 43039dc8c607..dcf6b3e5bfdf 100644
--- a/drivers/gpu/drm/i915/i915_mm.c
+++ b/drivers/gpu/drm/i915/i915_mm.c
@@ -62,7 +62,7 @@ static int remap_sg(pte_t *pte, unsigned long addr, void *data)
{
struct remap_pfn *r = data;
- if (GEM_WARN_ON(!r->sgt.pfn))
+ if (GEM_WARN_ON(!use_dma(r->iobase) && !r->sgt.pfn))
return -EINVAL;
/* Special PTE are not associated with any struct page */
--
2.26.2
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