Mesa (staging/22.0): zink: fix tcs control barriers for use without vk memory model
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Fri Apr 22 04:52:00 UTC 2022
Module: Mesa
Branch: staging/22.0
Commit: 580983bbf0b84cb4fd7f4b2364a29c605e6e81df
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=580983bbf0b84cb4fd7f4b2364a29c605e6e81df
Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date: Thu Apr 14 14:19:02 2022 -0400
zink: fix tcs control barriers for use without vk memory model
these are translated into memory+control barriers in nir, and only
the control barrier needs to be handled
these semantics match what glslang does, so they must be right
cc: mesa-stable
Reviewed-by: Dave Airlie <airlied at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15959>
(cherry picked from commit 55baf0c676a33a29aa8fb26e506e44eed598c091)
---
.pick_status.json | 2 +-
src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c | 12 +++++++-----
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/.pick_status.json b/.pick_status.json
index 9bdcc28d49f..4a335d57c08 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -44,7 +44,7 @@
"description": "zink: fix tcs control barriers for use without vk memory model",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"because_sha": null
},
{
diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index da291803ba3..a7b34628b3b 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -2720,8 +2720,7 @@ emit_intrinsic(struct ntv_context *ctx, nir_intrinsic_instr *intr)
break;
case nir_intrinsic_memory_barrier_tcs_patch:
- spirv_builder_emit_memory_barrier(&ctx->builder, SpvScopeWorkgroup,
- SpvMemorySemanticsOutputMemoryMask | SpvMemorySemanticsReleaseMask);
+ /* handled by subsequent nir_intrinsic_control_barrier */
break;
case nir_intrinsic_memory_barrier:
@@ -2749,9 +2748,12 @@ emit_intrinsic(struct ntv_context *ctx, nir_intrinsic_instr *intr)
break;
case nir_intrinsic_control_barrier:
- spirv_builder_emit_control_barrier(&ctx->builder, SpvScopeWorkgroup,
- SpvScopeWorkgroup,
- SpvMemorySemanticsWorkgroupMemoryMask | SpvMemorySemanticsAcquireMask);
+ if (ctx->stage == MESA_SHADER_COMPUTE)
+ spirv_builder_emit_control_barrier(&ctx->builder, SpvScopeWorkgroup,
+ SpvScopeWorkgroup,
+ SpvMemorySemanticsWorkgroupMemoryMask | SpvMemorySemanticsAcquireMask);
+ else
+ spirv_builder_emit_control_barrier(&ctx->builder, SpvScopeWorkgroup, SpvScopeInvocation, 0);
break;
case nir_intrinsic_interp_deref_at_centroid:
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