drm: cleanup buffer/map code
This is a patch from DRM CVS that cleans up some code that was in CVS
that I never moved to the kernel, this patch produces the result of the
cleanups and puts it into the kernel drm.
From: Eric Anholt <anholt@freebsd.org>, Jon Smirl, Dave Airlie
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 20bcf87..8255cc6 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -2048,6 +2048,27 @@
return ret;
}
+int radeon_presetup(struct drm_device *dev)
+{
+ int ret;
+ drm_local_map_t *map;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+
+ ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
+ drm_get_resource_len(dev, 2), _DRM_REGISTERS,
+ _DRM_READ_ONLY, &dev_priv->mmio);
+ if (ret != 0)
+ return ret;
+
+ ret = drm_addmap(dev, drm_get_resource_start(dev, 0),
+ drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
+ _DRM_WRITE_COMBINING, &map);
+ if (ret != 0)
+ return ret;
+
+ return 0;
+}
+
int radeon_driver_postcleanup(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;