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jay/lower_scoreboard: refactor SYNC.nop insertion

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Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41398>
This commit is contained in:
Alyssa Rosenzweig 2026-05-06 09:47:19 -04:00 • committed by Marge Bot
parent 1ecd75a397
commit 130e724d5e
1 changed files with 10 additions and 8 deletions
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18
src/intel/compiler/jay/jay_lower_scoreboard.c
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@ -33,11 +33,9 @@ def_to_gpr(jay_function *func, jay_inst *I, jay_def x)
}
static inline void
sync_sbid(jay_function *func, jay_inst *I, uint32_t *busy, unsigned sbid)
jay_SYNC_nop(jay_builder *b, struct tgl_swsb dep)
{
jay_builder b = jay_init_builder(func, jay_before_inst(I));
jay_SYNC(&b, TGL_SYNC_NOP)->dep = tgl_swsb_sbid(TGL_SBID_DST, sbid);
*busy &= ~BITFIELD_BIT(sbid);
jay_SYNC(b, TGL_SYNC_NOP)->dep = dep;
}
static void
@ -52,13 +50,16 @@ lower_send_local(jay_function *func, jay_block *block)
unsigned roundrobin = 0;
jay_foreach_inst_in_block_safe(block, I) {
jay_builder b = jay_init_builder(func, jay_before_inst(I));
/* Read-after-write */
jay_foreach_src(I, s) {
struct gpr_range src = def_to_gpr(func, I, I->src[s]);
u_foreach_bit(sbid, busy) {
if (BITSET_TEST_COUNT(tokens[sbid].writing, src.base, src.width)) {
sync_sbid(func, I, &busy, sbid);
jay_SYNC_nop(&b, tgl_swsb_sbid(TGL_SBID_DST, sbid));
busy &= ~BITFIELD_BIT(sbid);
}
}
}
@ -70,7 +71,8 @@ lower_send_local(jay_function *func, jay_block *block)
u_foreach_bit(sbid, busy) {
if (BITSET_TEST_COUNT(tokens[sbid].reading, dst.base, dst.width) ||
BITSET_TEST_COUNT(tokens[sbid].writing, dst.base, dst.width)) {
sync_sbid(func, I, &busy, sbid);
jay_SYNC_nop(&b, tgl_swsb_sbid(TGL_SBID_DST, sbid));
busy &= ~BITFIELD_BIT(sbid);
}
}
}
@ -100,7 +102,7 @@ lower_send_local(jay_function *func, jay_block *block)
jay_builder b = jay_init_builder(func, jay_before_jump(block));
u_foreach_bit(sbid, busy) {
jay_SYNC(&b, TGL_SYNC_NOP)->dep = tgl_swsb_sbid(TGL_SBID_DST, sbid);
jay_SYNC_nop(&b, tgl_swsb_sbid(TGL_SBID_DST, sbid));
}
}
}
@ -376,7 +378,7 @@ lower_trivial(jay_function *func)
I->dep = tgl_swsb_dst_dep(tgl_swsb_sbid(TGL_SBID_SET, 0), 1);
jay_builder b = jay_init_builder(func, jay_after_inst(I));
jay_SYNC(&b, TGL_SYNC_NOP)->dep = tgl_swsb_sbid(TGL_SBID_DST, 0);
jay_SYNC_nop(&b, tgl_swsb_sbid(TGL_SBID_DST, 0));
} else {
I->dep = tgl_swsb_regdist(1);
}