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vmwgfx: Fix fb VRAM pinning failure due to fragmentation

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If the soon-to-be scanout buffer is partly covering the intended
VRAM region, move and pin will fail. In that case, just move it out
to system before attempting to move it in again.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2010-10-01 10:21:51 +02:00 committed by Dave Airlie
parent f1a28ee238
commit abb295f3b3
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
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@ -615,6 +615,11 @@ int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
if (unlikely(ret != 0))
goto err_unlock;
if (bo->mem.mem_type == TTM_PL_VRAM &&
bo->mem.mm_node->start < bo->num_pages)
(void) ttm_bo_validate(bo, &vmw_sys_placement, false,
false, false);
ret = ttm_bo_validate(bo, &ne_placement, false, false, false);
/* Could probably bug on */