[Mesa-dev] [PATCH 3/3] anv: pipeline: use correct number of thread for compute

[Lionel Landwerlin]

Reproduces this commit :

commit 0fb85ac08d61d365e67c8f79d6955e9f89543560
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Mon Jun 6 21:37:34 2016 -0700

    i965: Use the correct number of threads for compute shaders.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Cc: Kenneth Graunke <kenneth at whitecape.org>
Cc: Jason Ekstrand <jason at jlekstrand.net>
---
 src/intel/vulkan/genX_pipeline.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index 3ecc29e..e1929da 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -104,6 +104,8 @@ genX(compute_pipeline_create)(
       ALIGN(cs_prog_data->push.per_thread.regs * cs_prog_data->threads +
             cs_prog_data->push.cross_thread.regs, 2);
 
+   const uint32_t subslices = MAX2(physical_device->subslice_total, 1);
+
    anv_batch_emit(&pipeline->batch, GENX(MEDIA_VFE_STATE), vfe) {
       vfe.ScratchSpaceBasePointer = (struct anv_address) {
          .bo = anv_scratch_pool_alloc(device, &device->scratch_pool,
@@ -117,7 +119,8 @@ genX(compute_pipeline_create)(
 #else
       vfe.GPGPUMode              = true;
 #endif
-      vfe.MaximumNumberofThreads = physical_device->max_cs_threads - 1;
+      vfe.MaximumNumberofThreads =
+         physical_device->max_cs_threads * subslices - 1;
       vfe.NumberofURBEntries     = GEN_GEN <= 7 ? 0 : 2;
       vfe.ResetGatewayTimer      = true;
 #if GEN_GEN <= 8
-- 
2.9.3