drm/radeon: add basic zmask/hiz support (v4)
This interface allows userspace to request hyperz support, it probably
needs more locking, and really reporting that you can have hyperz is racy
since someone else might get it before you do.
v2: modify so we pass 0 valued packets to let DDX/r300c keep working.
also fixed incorrect 0x4f1c reference.
v3: fixup zb_bw_cntl so older drivers keep working
v4: add locking, fixup SC_HYPERZ_EN - patch stream to disable hiz
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r100d.h b/drivers/gpu/drm/radeon/r100d.h
index d016b16..b121b6c 100644
--- a/drivers/gpu/drm/radeon/r100d.h
+++ b/drivers/gpu/drm/radeon/r100d.h
@@ -48,10 +48,12 @@
#define PACKET3_3D_DRAW_IMMD 0x29
#define PACKET3_3D_DRAW_INDX 0x2A
#define PACKET3_3D_LOAD_VBPNTR 0x2F
+#define PACKET3_3D_CLEAR_ZMASK 0x32
#define PACKET3_INDX_BUFFER 0x33
#define PACKET3_3D_DRAW_VBUF_2 0x34
#define PACKET3_3D_DRAW_IMMD_2 0x35
#define PACKET3_3D_DRAW_INDX_2 0x36
+#define PACKET3_3D_CLEAR_HIZ 0x37
#define PACKET3_BITBLT_MULTI 0x9B
#define PACKET0(reg, n) (CP_PACKET0 | \