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authorGeorge Sapountzis <gsap7@yahoo.gr>2006-10-24 12:03:04 -0700
committerairlied <airlied@linux.ie>2006-12-07 15:53:31 +1100
commit3417f33e762bf7d4277031a655e3ad07e73ce0be (patch)
tree255d4871a0a7affbeab8d35f5b072a70ef064cfd /drivers/char/drm/drm.h
parent5c2df2bfb121a77d925dba580f53da08b4020528 (diff)
drm: add flag for mapping PCI DMA buffers read-only.
Add DRM_PCI_BUFFER_RO flag for mapping PCI DMA buffer read-only. An additional flag is needed, since PCI DMA buffers do not have an associated map. Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/char/drm/drm.h')
-rw-r--r--drivers/char/drm/drm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h
index 3f28a155162..8db9041e306 100644
--- a/drivers/char/drm/drm.h
+++ b/drivers/char/drm/drm.h
@@ -356,7 +356,8 @@ typedef struct drm_buf_desc {
_DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */
_DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */
_DRM_SG_BUFFER = 0x04, /**< Scatter/gather memory buffer */
- _DRM_FB_BUFFER = 0x08 /**< Buffer is in frame buffer */
+ _DRM_FB_BUFFER = 0x08, /**< Buffer is in frame buffer */
+ _DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */
} flags;
unsigned long agp_start; /**<
* Start address of where the AGP buffers are