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drm/udl: add cache flags definitions for udl_gem_object

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By default set udl_gem_object as cacheable, but set WC flag when attaching
dmabuf. In udl_gem_mmap() update cache attributes based on the flags, similar
to exynos_drm_gem_mmap().

Signed-off-by: Haixia Shi <hshi@chromium.org>
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Haixia Shi
2014-11-12 18:33:52 -08:00
committed by Dave Airlie
parent a7ca52e108
commit 09a58da052
2 changed files with 25 additions and 0 deletions
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4
drivers/gpu/drm/udl/udl_drv.h
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@@ -25,6 +25,9 @@
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 1
#define UDL_BO_CACHEABLE (1 << 0)
#define UDL_BO_WC (1 << 1)
struct udl_device;
struct urb_node {
@@ -69,6 +72,7 @@ struct udl_gem_object {
struct page **pages;
void *vmapping;
struct sg_table *sg;
unsigned int flags;
};
#define to_udl_bo(x) container_of(x, struct udl_gem_object, base)