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intel/compiler: Add unified barrier support for CS

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Program CS barrier message fields for producers/consumers.

Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11963>
This commit is contained in:
Jason Ekstrand 2021-02-04 19:36:16 -06:00 • committed by Marge Bot
parent 6a950bab0c
commit 31fdd26d01
1 changed files with 27 additions and 18 deletions
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45
src/intel/compiler/brw_fs_visitor.cpp
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@ -1046,20 +1046,6 @@ fs_visitor::emit_cs_terminate()
void
fs_visitor::emit_barrier()
{
uint32_t barrier_id_mask;
switch (devinfo->ver) {
case 7:
case 8:
barrier_id_mask = 0x0f000000u; break;
case 9:
barrier_id_mask = 0x8f000000u; break;
case 11:
case 12:
barrier_id_mask = 0x7f000000u; break;
default:
unreachable("barrier is only available on gen >= 7");
}
/* We are getting the barrier ID from the compute shader header */
assert(stage == MESA_SHADER_COMPUTE || stage == MESA_SHADER_KERNEL);
@ -1068,10 +1054,33 @@ fs_visitor::emit_barrier()
/* Clear the message payload */
bld.exec_all().group(8, 0).MOV(payload, brw_imm_ud(0u));
/* Copy the barrier id from r0.2 to the message payload reg.2 */
fs_reg r0_2 = fs_reg(retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_UD));
bld.exec_all().group(1, 0).AND(component(payload, 2), r0_2,
brw_imm_ud(barrier_id_mask));
if (devinfo->verx10 >= 125) {
/* mov r0.2[31:24] into m0.2[31:24] and m0.2[23:16] */
fs_reg m0_10ub = component(retype(payload, BRW_REGISTER_TYPE_UB), 10);
fs_reg r0_11ub =
stride(suboffset(retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UB), 11),
0, 1, 0);
bld.exec_all().group(2, 0).MOV(m0_10ub, r0_11ub);
} else {
uint32_t barrier_id_mask;
switch (devinfo->ver) {
case 7:
case 8:
barrier_id_mask = 0x0f000000u; break;
case 9:
barrier_id_mask = 0x8f000000u; break;
case 11:
case 12:
barrier_id_mask = 0x7f000000u; break;
default:
unreachable("barrier is only available on gen >= 7");
}
/* Copy the barrier id from r0.2 to the message payload reg.2 */
fs_reg r0_2 = fs_reg(retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_UD));
bld.exec_all().group(1, 0).AND(component(payload, 2), r0_2,
brw_imm_ud(barrier_id_mask));
}
/* Emit a gateway "barrier" message using the payload we set up, followed
* by a wait instruction.