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intel/compiler: Use generic SEND for Gen7+ FB writes

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This takes care of generate_fb_write/fire_fb_write/brw_fb_WRITE's stuff
earlier in the visitor.  It will also make it easier to generate SENDSC
messages with indirect extended descriptors in a few patches.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Kenneth Graunke 2019-08-26 00:05:21 -07:00
parent 86a63b1098
commit 0d96484165
2 changed files with 28 additions and 6 deletions
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29
src/intel/compiler/brw_fs.cpp
View File

@ -4439,8 +4439,26 @@ lower_fb_write_logical_send(const fs_builder &bld, fs_inst *inst,
payload.nr = bld.shader->alloc.allocate(regs_written(load));
load->dst = payload;
inst->src[0] = payload;
inst->resize_sources(1);
uint32_t msg_ctl = brw_fb_write_msg_control(inst, prog_data);
uint32_t ex_desc = 0;
inst->desc =
(inst->group / 16) ? (1 << 11) : 0 | /* rt slot group */
brw_dp_write_desc(devinfo, inst->target, msg_ctl,
GEN6_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE,
inst->last_rt, false);
inst->opcode = SHADER_OPCODE_SEND;
inst->resize_sources(3);
inst->sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
inst->src[0] = brw_imm_ud(inst->desc);
inst->src[1] = brw_imm_ud(ex_desc);
inst->src[2] = payload;
inst->mlen = regs_written(load);
inst->ex_mlen = 0;
inst->header_size = header_size;
inst->check_tdr = true;
inst->send_has_side_effects = true;
} else {
/* Send from the MRF */
load = bld.LOAD_PAYLOAD(fs_reg(MRF, 1, BRW_REGISTER_TYPE_F),
@ -4460,11 +4478,10 @@ lower_fb_write_logical_send(const fs_builder &bld, fs_inst *inst,
inst->resize_sources(0);
}
inst->base_mrf = 1;
inst->opcode = FS_OPCODE_FB_WRITE;
inst->mlen = regs_written(load);
inst->header_size = header_size;
}
inst->opcode = FS_OPCODE_FB_WRITE;
inst->mlen = regs_written(load);
inst->header_size = header_size;
}
static void

5
src/intel/compiler/brw_schedule_instructions.cpp
View File

@ -412,6 +412,11 @@ schedule_node::set_latency_gen7(bool is_haswell)
latency = 14000;
break;
case GEN6_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE:
/* completely fabricated number */
latency = 600;
break;
default:
unreachable("Unknown render cache message");
}