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intel/fs: Use SENDS for A64 writes on gen9+

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eviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand
2018-11-16 10:13:51 -06:00
parent 1c25bf4373
commit a91f392073
1 changed files with 23 additions and 10 deletions
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src/intel/compiler/brw_fs.cpp
+23 -10
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@@ -5241,19 +5241,30 @@ lower_a64_logical_send(const fs_builder &bld, fs_inst *inst)
sample_mask);
}
/* Add two because the address is 64-bit */
const unsigned dwords = 2 + src_comps;
const unsigned mlen = dwords * (inst->exec_size / 8);
fs_reg payload, payload2;
unsigned mlen, ex_mlen = 0;
if (devinfo->gen >= 9) {
/* On Skylake and above, we have SENDS */
mlen = 2 * (inst->exec_size / 8);
ex_mlen = src_comps * (inst->exec_size / 8);
payload = retype(bld.move_to_vgrf(addr, 1), BRW_REGISTER_TYPE_UD);
payload2 = retype(bld.move_to_vgrf(src, src_comps),
BRW_REGISTER_TYPE_UD);
} else {
/* Add two because the address is 64-bit */
const unsigned dwords = 2 + src_comps;
mlen = dwords * (inst->exec_size / 8);
fs_reg sources[5];
fs_reg sources[5];
sources[0] = addr;
sources[0] = addr;
for (unsigned i = 0; i < src_comps; i++)
sources[1 + i] = offset(src, bld, i);
for (unsigned i = 0; i < src_comps; i++)
sources[1 + i] = offset(src, bld, i);
const fs_reg payload = bld.vgrf(BRW_REGISTER_TYPE_UD, dwords);
bld.LOAD_PAYLOAD(payload, sources, 1 + src_comps, 0);
payload = bld.vgrf(BRW_REGISTER_TYPE_UD, dwords);
bld.LOAD_PAYLOAD(payload, sources, 1 + src_comps, 0);
}
uint32_t desc;
switch (inst->opcode) {
@@ -5288,6 +5299,7 @@ lower_a64_logical_send(const fs_builder &bld, fs_inst *inst)
/* Update the original instruction. */
inst->opcode = SHADER_OPCODE_SEND;
inst->mlen = mlen;
inst->ex_mlen = ex_mlen;
inst->header_size = 0;
inst->send_has_side_effects = has_side_effects;
inst->send_is_volatile = !has_side_effects;
@@ -5295,10 +5307,11 @@ lower_a64_logical_send(const fs_builder &bld, fs_inst *inst)
/* Set up SFID and descriptors */
inst->sfid = HSW_SFID_DATAPORT_DATA_CACHE_1;
inst->desc = desc;
inst->resize_sources(3);
inst->resize_sources(4);
inst->src[0] = brw_imm_ud(0); /* desc */
inst->src[1] = brw_imm_ud(0); /* ex_desc */
inst->src[2] = payload;
inst->src[3] = payload2;
}
static void