2 files changed, 13 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 90ff8e0ac04e..68e728e8be4d 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1091,6 +1091,16 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
                         tmp |= tile_flags;
                         ib[idx] = tmp;
                         break;
+                case RADEON_RB3D_ZPASS_ADDR:
+                        r = r100_cs_packet_next_reloc(p, &reloc);
+                        if (r) {
+                                DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                          idx, reg);
+                                r100_cs_dump_packet(p, pkt);
+                                return r;
+                        }
+                        ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
+                        break;
                 default:
                         /* FIXME: we don't want to allow anyothers packet */
                         break;
diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h
index 5a098f304edb..5834497b366d 100644
--- a/drivers/gpu/drm/radeon/radeon_reg.h
+++ b/drivers/gpu/drm/radeon/radeon_reg.h
@@ -2337,6 +2337,9 @@
 #       define RADEON_RE_WIDTH_SHIFT        0
 #       define RADEON_RE_HEIGHT_SHIFT       16
 
+#define RADEON_RB3D_ZPASS_DATA 0x3290
+#define RADEON_RB3D_ZPASS_ADDR 0x3294
+
 #define RADEON_SE_CNTL                      0x1c4c
 #       define RADEON_FFACE_CULL_CW          (0 <<  0)
 #       define RADEON_FFACE_CULL_CCW         (1 <<  0)