drm/radeon/kms: set SX_MISC in the r6xx blit code (v2)

BugLink: http://bugs.launchpad.net/bugs/954576

commit cf00790dea6f210ddd01a6656da58c7c9a4ea0e4 upstream.

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>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/r600_blit_shaders.c b/drivers/gpu/drm/radeon/r600_blit_shaders.c
index 2d1f6c5ee2a..73e2c7c6edb 100644
--- a/drivers/gpu/drm/radeon/r600_blit_shaders.c
+++ b/drivers/gpu/drm/radeon/r600_blit_shaders.c
@@ -314,6 +314,10 @@ const u32 r6xx_default_state[] =
         0x00000000, /* VGT_VTX_CNT_EN */
 
         0xc0016900,
+        0x000000d4,
+        0x00000000, /* SX_MISC */
+
+        0xc0016900,
         0x000002c8,
         0x00000000, /* VGT_STRMOUT_BUFFER_EN */
 
@@ -626,6 +630,10 @@ const u32 r7xx_default_state[] =
         0x00000000, /* VGT_VTX_CNT_EN */
 
         0xc0016900,
+        0x000000d4,
+        0x00000000, /* SX_MISC */
+
+        0xc0016900,
         0x000002c8,
         0x00000000, /* VGT_STRMOUT_BUFFER_EN */