[Mesa-dev] [PATCH 1/2] intel/compiler: Memory fence commit must always be enabled for gen10+

[Anuj Phogat]

Commit bit in the message descriptor (Bit 13) must be always set
to true in CNL+ for memory fence messages. It also fixes a piglit
GPU hang on cnl+ in simulation environment.
Piglit test: arb_shader_image_load_store-shader-mem-barrier
See HSD ES # 1404612949

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Cc: mesa-stable at lists.freedesktop.org
---
 src/intel/compiler/brw_eu_emit.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw_eu_emit.c b/src/intel/compiler/brw_eu_emit.c
index c25d8d6eda..1fb9aab51c 100644
--- a/src/intel/compiler/brw_eu_emit.c
+++ b/src/intel/compiler/brw_eu_emit.c
@@ -3275,7 +3275,9 @@ brw_memory_fence(struct brw_codegen *p,
                  struct brw_reg dst)
 {
    const struct gen_device_info *devinfo = p->devinfo;
-   const bool commit_enable = devinfo->gen == 7 && !devinfo->is_haswell;
+   const bool commit_enable =
+      devinfo->gen >= 10 || /* HSD ES # 1404612949 */
+      (devinfo->gen == 7 && !devinfo->is_haswell);
    struct brw_inst *insn;
 
    brw_push_insn_state(p);
-- 
2.13.6