drm: add _DRM_CONSISTENT map type

Added a new DRM map type _DRM_CONSISTENT for consistent PCI memory. It
uses drm_pci_alloc/free for allocating/freeing the memory.

From: Felix Kuhling <fxkuehl@gmx.de>
Signed-off-by: David Airlie <airlied@linux.ie>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h
index e8371dd87fbc..50c4d981c497 100644
--- a/drivers/char/drm/drm.h
+++ b/drivers/char/drm/drm.h
@@ -209,7 +209,8 @@ typedef enum drm_map_type {
         _DRM_REGISTERS      = 1,  /**< no caching, no core dump */
         _DRM_SHM            = 2,  /**< shared, cached */
         _DRM_AGP            = 3,  /**< AGP/GART */
-        _DRM_SCATTER_GATHER = 4   /**< Scatter/gather memory for PCI DMA */
+        _DRM_SCATTER_GATHER = 4,  /**< Scatter/gather memory for PCI DMA */
+        _DRM_CONSISTENT     = 5,  /**< Consistent memory for PCI DMA */
 } drm_map_type_t;