drm/radeon: fix ioremap conflict with AGP mappings
this solves a regression from
http://bugzilla.kernel.org/show_bug.cgi?id=12441
Reported-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c
index 803bc9e..bcc869b 100644
--- a/drivers/gpu/drm/drm_memory.c
+++ b/drivers/gpu/drm/drm_memory.c
@@ -171,9 +171,14 @@
void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev)
{
- map->handle = ioremap_wc(map->offset, map->size);
+ if (drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
+ map->handle = agp_remap(map->offset, map->size, dev);
+ else
+ map->handle = ioremap_wc(map->offset, map->size);
}
EXPORT_SYMBOL(drm_core_ioremap_wc);
+
void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev)
{
if (!map->handle || !map->size)
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 63212d7..df4cf97 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -1039,9 +1039,9 @@
#if __OS_HAS_AGP
if (dev_priv->flags & RADEON_IS_AGP) {
- drm_core_ioremap(dev_priv->cp_ring, dev);
- drm_core_ioremap(dev_priv->ring_rptr, dev);
- drm_core_ioremap(dev->agp_buffer_map, dev);
+ drm_core_ioremap_wc(dev_priv->cp_ring, dev);
+ drm_core_ioremap_wc(dev_priv->ring_rptr, dev);
+ drm_core_ioremap_wc(dev->agp_buffer_map, dev);
if (!dev_priv->cp_ring->handle ||
!dev_priv->ring_rptr->handle ||
!dev->agp_buffer_map->handle) {