[PATCH] drm/vmwgfx: Fix Legacy Display Unit

Ian Forbes ian.forbes at broadcom.com
Thu Apr 25 20:07:00 UTC 2024


Legacy DU was broken by the referenced fixes commit because the placement
and the busy_placement no longer pointed to the same object. This was later
fixed indirectly by commit a78a8da51b36c7a0c0c16233f91d60aac03a5a49
("drm/ttm: replace busy placement with flags v6") in v6.9.

Fixes: 39985eea5a6d ("drm/vmwgfx: Abstract placement selection")
Signed-off-by: Ian Forbes <ian.forbes at broadcom.com>
Cc: <stable at vger.kernel.org> # v6.4+
---
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index 2bfac3aad7b7..98e73eb0ccf1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -204,6 +204,7 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv,
 			     VMW_BO_DOMAIN_VRAM,
 			     VMW_BO_DOMAIN_VRAM);
 	buf->places[0].lpfn = PFN_UP(bo->resource->size);
+	buf->busy_places[0].lpfn = PFN_UP(bo->resource->size);
 	ret = ttm_bo_validate(bo, &buf->placement, &ctx);
 
 	/* For some reason we didn't end up at the start of vram */
-- 
2.34.1



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