From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Sat, 27 Feb 2016 17:43:14 +0000 (-0800)
Subject: anv/gen7: Set MaximumNumberofThreads in the dummy PS packet
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e18a2f037a074788ee3cf6cb00697b5b0152fe29;p=mesa.git

anv/gen7: Set MaximumNumberofThreads in the dummy PS packet
---

diff --git a/src/intel/vulkan/gen7_pipeline.c b/src/intel/vulkan/gen7_pipeline.c
index 009a79ac815..2167f296b2f 100644
--- a/src/intel/vulkan/gen7_pipeline.c
+++ b/src/intel/vulkan/gen7_pipeline.c
@@ -338,7 +338,11 @@ genX(graphics_pipeline_create)(
 		    .PointRasterizationRule                   = RASTRULE_UPPER_RIGHT);
 
 
-     anv_batch_emit(&pipeline->batch, GENX(3DSTATE_PS));
+     /* Even if no fragments are ever dispatched, the hardware hangs if we
+      * don't at least set the maximum number of threads.
+      */
+     anv_batch_emit(&pipeline->batch, GENX(3DSTATE_PS),
+                    .MaximumNumberofThreads                   = device->info.max_wm_threads - 1);
 
    } else {
       const struct brw_wm_prog_data *wm_prog_data = &pipeline->wm_prog_data;