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drm/ast: invalidate page tables when pinning a BO

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same fix as cirrus and mgag200.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-08-07 10:01:56 +10:00
parent ecaac1c866
commit 3ac6525932
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/ast/ast_ttm.c
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@ -323,6 +323,7 @@ int ast_bo_create(struct drm_device *dev, int size, int align,
astbo->gem.driver_private = NULL;
astbo->bo.bdev = &ast->ttm.bdev;
astbo->bo.bdev->dev_mapping = dev->dev_mapping;
ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);