Mesa may set it to 1, causing all primitives to be killed.
v2: also update the r7xx code
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
        0x00000000, /* VGT_REUSE_OFF */
        0x00000000, /* VGT_VTX_CNT_EN */
 
+       0xc0016900,
+       0x000000d4,
+       0x00000000, /* SX_MISC */
+
        0xc0016900,
        0x000002c8,
        0x00000000, /* VGT_STRMOUT_BUFFER_EN */
        0x00000000, /* VGT_REUSE_OFF */
        0x00000000, /* VGT_VTX_CNT_EN */
 
+       0xc0016900,
+       0x000000d4,
+       0x00000000, /* SX_MISC */
+
        0xc0016900,
        0x000002c8,
        0x00000000, /* VGT_STRMOUT_BUFFER_EN */