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, 4 insertions, 0 deletions

diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c
index 3333c250c4d..f4046c8c70b 100644
--- a/drivers/char/drm/drm_drv.c
+++ b/drivers/char/drm/drm_drv.c
@@ -228,6 +228,10 @@ int drm_takedown( drm_device_t *dev )
                                                 dev->sg = NULL;
                                         }
                                         break;
+                                case _DRM_CONSISTENT:
+                                        drm_pci_free(dev, map->size,
+                                                     map->handle, map->offset);
+                                        break;
                                 }
                                 drm_free(map, sizeof(*map), DRM_MEM_MAPS);
                         }