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i965: Drop LOAD_PAYLOAD workaround in fs_visitor::emit_urb_writes().

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Now that Jason's LOAD_PAYLOAD improvements have landed, we don't need
this.  Passing 1 for the number of header registers already takes care
of setting force_writemask_all on the header copy.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Kenneth Graunke 2015-05-29 23:02:56 -07:00
parent 386bf336c4
commit a2655e0dd4
1 changed files with 4 additions and 12 deletions
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16
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
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@ -1980,22 +1980,14 @@ fs_visitor::emit_urb_writes()
fs_reg *payload_sources = ralloc_array(mem_ctx, fs_reg, length + 1);
fs_reg payload = fs_reg(GRF, alloc.allocate(length + 1),
BRW_REGISTER_TYPE_F, dispatch_width);
/* We need WE_all on the MOV for the message header (the URB handles)
* so do a MOV to a dummy register and set force_writemask_all on the
* MOV. LOAD_PAYLOAD will preserve that.
*/
fs_reg dummy = fs_reg(GRF, alloc.allocate(1),
BRW_REGISTER_TYPE_UD);
fs_inst *inst = emit(MOV(dummy, fs_reg(retype(brw_vec8_grf(1, 0),
BRW_REGISTER_TYPE_UD))));
inst->force_writemask_all = true;
payload_sources[0] = dummy;
payload_sources[0] =
fs_reg(retype(brw_vec8_grf(1, 0), BRW_REGISTER_TYPE_UD));
memcpy(&payload_sources[1], sources, length * sizeof sources[0]);
emit(LOAD_PAYLOAD(payload, payload_sources, length + 1, 1));
inst = emit(SHADER_OPCODE_URB_WRITE_SIMD8, reg_undef, payload);
fs_inst *inst =
emit(SHADER_OPCODE_URB_WRITE_SIMD8, reg_undef, payload);
inst->eot = last;
inst->mlen = length + 1;
inst->offset = urb_offset;