[Mesa-dev] [PATCH v1] anv/skylake: disable ForceThreadDispatchEnable

[Sergii Romantsov]

On Skylake enabling of ForceThreadDispatchEnable causes gpu-hang.

CC: Jason Ekstrand <jason.ekstrand at intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107941
Fixes: 79270d2140ec (anv: Stop setting 3DSTATE_PS_EXTRA::PixelShaderHasUAV)
Signed-off-by: Sergii Romantsov <sergii.romantsov at globallogic.com>
---
 src/intel/vulkan/genX_pipeline.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index 9595a71..bf5150d 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -1462,7 +1462,8 @@ emit_3dstate_wm(struct anv_pipeline *pipeline, struct anv_subpass *subpass,
           * is 3DSTATE_PS_EXTRA::PixelShaderHasUAV which causes hangs on BDW.
           * Given two bad options, we choose the one which works.
           */
-         if ((wm_prog_data->has_side_effects || wm_prog_data->uses_kill) &&
+         if (!pipeline->device->info.is_skylake &&
+             (wm_prog_data->has_side_effects || wm_prog_data->uses_kill) &&
              !has_color_buffer_write_enabled(pipeline, blend))
             wm.ForceThreadDispatchEnable = ForceON;
 #endif
-- 
2.7.4