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intel/fs: Add a generic SEND opcode

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Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Jason Ekstrand
2018-10-29 15:06:14 -05:00
committed by Jason Ekstrand
parent ba3c5300f9
commit 7f1cf046cd
9 changed files with 91 additions and 3 deletions
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35
src/intel/compiler/brw_fs_generator.cpp
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@@ -250,6 +250,33 @@ fs_generator::patch_discard_jumps_to_fb_writes()
return true;
}
void
fs_generator::generate_send(fs_inst *inst,
struct brw_reg dst,
struct brw_reg desc,
struct brw_reg ex_desc,
struct brw_reg payload,
struct brw_reg payload2)
{
/* SENDS not yet supported */
assert(ex_desc.file == BRW_IMMEDIATE_VALUE && ex_desc.d == 0);
assert(payload2.file == BRW_ARCHITECTURE_REGISTER_FILE &&
payload2.nr == BRW_ARF_NULL);
const bool dst_is_null = dst.file == BRW_ARCHITECTURE_REGISTER_FILE &&
dst.nr == BRW_ARF_NULL;
const unsigned rlen = dst_is_null ? 0 : inst->size_written / REG_SIZE;
uint32_t desc_imm = inst->desc |
brw_message_desc(devinfo, inst->mlen, rlen, inst->header_size);
brw_send_indirect_message(p, inst->sfid, dst, payload, desc, desc_imm);
brw_inst_set_eot(p->devinfo, brw_last_inst, inst->eot);
if (inst->check_tdr)
brw_inst_set_opcode(p->devinfo, brw_last_inst, BRW_OPCODE_SENDC);
}
void
fs_generator::fire_fb_write(fs_inst *inst,
struct brw_reg payload,
@@ -1807,7 +1834,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
struct disasm_info *disasm_info = disasm_initialize(devinfo, cfg);
foreach_block_and_inst (block, fs_inst, inst, cfg) {
struct brw_reg src[3], dst;
struct brw_reg src[4], dst;
unsigned int last_insn_offset = p->next_insn_offset;
bool multiple_instructions_emitted = false;
@@ -2130,6 +2157,12 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
src[0].subnr = 4 * type_sz(src[0].type);
brw_MOV(p, dst, stride(src[0], 8, 4, 1));
break;
case SHADER_OPCODE_SEND:
generate_send(inst, dst, src[0], src[1], src[2],
inst->ex_mlen > 0 ? src[3] : brw_null_reg());
break;
case SHADER_OPCODE_GET_BUFFER_SIZE:
generate_get_buffer_size(inst, dst, src[0], src[1]);
break;