intel/fs,vec4: Use g0 as the header for MFENCE

We set header_present but then pass it some random garbage.  Give it g0
instead.  I'm not actually sure this does anything but g0 is the usual
header data and this is what the windows driver does so it seems like a
good idea.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 5 insertions, 4 deletions

diff --git a/src/intel/compiler/brw_eu_emit.c b/src/intel/compiler/brw_eu_emit.c
index a271621393d..181932705f3 100644
--- a/src/intel/compiler/brw_eu_emit.c
+++ b/src/intel/compiler/brw_eu_emit.c
@@ -3037,6 +3037,7 @@ brw_set_memory_fence_message(struct brw_codegen *p,
 void
 brw_memory_fence(struct brw_codegen *p,
                  struct brw_reg dst,
+                 struct brw_reg src,
                  enum opcode send_op)
 {
    const struct gen_device_info *devinfo = p->devinfo;
@@ -3048,15 +3049,15 @@ brw_memory_fence(struct brw_codegen *p,
    brw_push_insn_state(p);
    brw_set_default_mask_control(p, BRW_MASK_DISABLE);
    brw_set_default_exec_size(p, BRW_EXECUTE_1);
-   dst = vec1(dst);
+   dst = retype(vec1(dst), BRW_REGISTER_TYPE_UW);
+   src = retype(vec1(src), BRW_REGISTER_TYPE_UD);
 
    /* Set dst as destination for dependency tracking, the MEMORY_FENCE
     * message doesn't write anything back.
     */
    insn = next_insn(p, send_op);
-   dst = retype(dst, BRW_REGISTER_TYPE_UW);
    brw_set_dest(p, insn, dst);
-   brw_set_src0(p, insn, dst);
+   brw_set_src0(p, insn, src);
    brw_set_memory_fence_message(p, insn, GEN7_SFID_DATAPORT_DATA_CACHE,
                                 commit_enable);
 
@@ -3067,7 +3068,7 @@ brw_memory_fence(struct brw_codegen *p,
        */
       insn = next_insn(p, send_op);
       brw_set_dest(p, insn, offset(dst, 1));
-      brw_set_src0(p, insn, offset(dst, 1));
+      brw_set_src0(p, insn, src);
       brw_set_memory_fence_message(p, insn, GEN6_SFID_DATAPORT_RENDER_CACHE,
                                    commit_enable);