[Mesa-dev] [PATCH 2/3] anv: Flush caches prior to PIPELINE_SELECT on all gens

[Jason Ekstrand]

The programming note that says we need to do this still exists in the
SkyLake PRM and, from looking at the bspec, seems to apply to all
hardware generations SNB+.  Also, this seems to be the cause of some of
the GPU hangs we've been seeing in GL with the "Car Chase" benchmark.

Reported-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
Cc: "17.0 13.0" <mesa-stable at lists.freedesktop.org>
---
 src/intel/vulkan/genX_cmd_buffer.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 2e95b98..a23fcba 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -2040,8 +2040,8 @@ flush_pipeline_before_pipeline_select(struct anv_cmd_buffer *cmd_buffer,
     */
    if (pipeline == GPGPU)
       anv_batch_emit(&cmd_buffer->batch, GENX(3DSTATE_CC_STATE_POINTERS), t);
+#endif
 
-#elif GEN_GEN <= 7
    /* From "BXML » GT » MI » vol1a GPU Overview » [Instruction]
     * PIPELINE_SELECT [DevBWR+]":
     *
@@ -2067,7 +2067,6 @@ flush_pipeline_before_pipeline_select(struct anv_cmd_buffer *cmd_buffer,
       pc.InstructionCacheInvalidateEnable = true;
       pc.PostSyncOperation                = NoWrite;
    }
-#endif
 }
 
 void
-- 
2.5.0.400.gff86faf