Mesa (master): intel/compiler: Memory fence commit must always be enabled for gen10+

[Francisco Jerez]

Module: Mesa
Branch: master
Commit: 56dc9f9f49638e0769d6bc696ff7f5dafccec9fc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=56dc9f9f49638e0769d6bc696ff7f5dafccec9fc

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Tue Feb  6 17:09:09 2018 -0800

intel/compiler: Memory fence commit must always be enabled for gen10+

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
Reviewed-by: Francisco Jerez <currojerez at riseup.net>

---

 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 44abede16b..f8102e014e 100644
--- a/src/intel/compiler/brw_eu_emit.c
+++ b/src/intel/compiler/brw_eu_emit.c
@@ -3287,7 +3287,9 @@ 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);