Mesa (master): aco/ngg: Run GS_ALLOC_REQ on priority 3 for NGG VS and TES.
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Tue Apr 7 11:44:57 UTC 2020
Module: Mesa
Branch: master
Commit: 64225c4f962c2640dd280d3817517b75c7188622
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=64225c4f962c2640dd280d3817517b75c7188622
Author: Timur Kristóf <timur.kristof at gmail.com>
Date: Wed Apr 1 15:55:41 2020 +0200
aco/ngg: Run GS_ALLOC_REQ on priority 3 for NGG VS and TES.
It is recommended to do this as quickly as possible.
Signed-off-by: Timur Kristóf <timur.kristof at gmail.com>
Reviewed-by: Daniel Schürmann <daniel at schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3576>
---
src/amd/compiler/aco_instruction_selection.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp
index f287679cb23..bd95d096bd2 100644
--- a/src/amd/compiler/aco_instruction_selection.cpp
+++ b/src/amd/compiler/aco_instruction_selection.cpp
@@ -10323,6 +10323,9 @@ void ngg_emit_sendmsg_gs_alloc_req(isel_context *ctx)
{
Builder bld(ctx->program, ctx->block);
+ /* It is recommended to do the GS_ALLOC_REQ as soon and as quickly as possible, so we set the maximum priority (3). */
+ bld.sopp(aco_opcode::s_setprio, -1u, 0x3u);
+
/* Get the id of the current wave within the threadgroup (workgroup) */
Builder::Result wave_id_in_tg = bld.sop2(aco_opcode::s_bfe_u32, bld.def(s1), bld.def(s1, scc),
get_arg(ctx, ctx->args->merged_wave_info), Operand(24u | (4u << 16)));
@@ -10350,6 +10353,9 @@ void ngg_emit_sendmsg_gs_alloc_req(isel_context *ctx)
/* Request the SPI to allocate space for the primitives and vertices that will be exported by the threadgroup. */
bld.sopp(aco_opcode::s_sendmsg, bld.m0(tmp), -1, sendmsg_gs_alloc_req);
+ /* After the GS_ALLOC_REQ is done, reset priority to default (0). */
+ bld.sopp(aco_opcode::s_setprio, -1u, 0x0u);
+
end_uniform_if(ctx, &ic);
}
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