drm: rework radeon memory map (radeon 1.23)

This code reworks the radeon memory map so it works better
for newer r300 chips and for a lot of older PCI chips.

It really requires a new X driver in order to take advantage of this code.

From: Ben Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/drm/radeon_drm.h b/drivers/char/drm/radeon_drm.h
index 9c177a6b2a4c..bb63e6806fd1 100644
--- a/drivers/char/drm/radeon_drm.h
+++ b/drivers/char/drm/radeon_drm.h
@@ -697,6 +697,7 @@ typedef struct drm_radeon_setparam {
 #define RADEON_SETPARAM_FB_LOCATION    1        /* determined framebuffer location */
 #define RADEON_SETPARAM_SWITCH_TILING  2        /* enable/disable color tiling */
 #define RADEON_SETPARAM_PCIGART_LOCATION 3      /* PCI Gart Location */
+#define RADEON_SETPARAM_NEW_MEMMAP 4            /* Use new memory map */
 
 /* 1.14: Clients can allocate/free a surface
  */