Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

[pandora-kernel.git] / drivers / gpu / drm / radeon / radeon_state.c

diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 32971b8..40ab6d9 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -105,6 +105,7 @@ static __inline__ int radeon_check_and_fixup_packets(drm_radeon_private_t *
                        DRM_ERROR("Invalid depth buffer offset\n");
                        return -EINVAL;
                }
+               dev_priv->have_z_offset = 1;
                break;
 
        case RADEON_EMIT_PP_CNTL:
@@ -898,6 +899,11 @@ static void radeon_cp_dispatch_clear(struct drm_device * dev,
                if (tmp & RADEON_BACK)
                        flags |= RADEON_FRONT;
        }
+       if (flags & (RADEON_DEPTH|RADEON_STENCIL)) {
+               if (!dev_priv->have_z_offset)
+                       printk_once(KERN_ERR "radeon: illegal depth clear request. Buggy mesa detected - please update.\n");
+               flags &= ~(RADEON_DEPTH | RADEON_STENCIL);
+       }
 
        if (flags & (RADEON_FRONT | RADEON_BACK)) {
 
@@ -1087,7 +1093,7 @@ static void radeon_cp_dispatch_clear(struct drm_device * dev,
                                        /* judging by the first tile offset needed, could possibly
                                           directly address/clear 4x4 tiles instead of 8x2 * 4x4
                                           macro tiles, though would still need clear mask for
-                                          right/bottom if truely 4x4 granularity is desired ? */
+                                          right/bottom if truly 4x4 granularity is desired ? */
                                        OUT_RING(tileoffset * 16);
                                        /* the number of tiles to clear */
                                        OUT_RING(nrtilesx + 1);