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config: Add toggle for DMA (#3185)

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* config: Add toggle for DMA

* config: Log new config
This commit is contained in:
TheTurtle 2025-07-03 20:03:06 +03:00 • committed by GitHub
parent 48460d1cbe
commit df22c4225e
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GPG key ID: B5690EEEBB952194
9 changed files with 52 additions and 24 deletions
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2
src/shader_recompiler/ir/passes/ir_passes.h
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@ -19,7 +19,7 @@ void ConstantPropagationPass(IR::BlockList& program);
void FlattenExtendedUserdataPass(IR::Program& program);
void ReadLaneEliminationPass(IR::Program& program);
void ResourceTrackingPass(IR::Program& program);
void CollectShaderInfoPass(IR::Program& program);
void CollectShaderInfoPass(IR::Program& program, const Profile& profile);
void LowerBufferFormatToRaw(IR::Program& program);
void LowerFp64ToFp32(IR::Program& program);
void RingAccessElimination(const IR::Program& program, const RuntimeInfo& runtime_info);

22
src/shader_recompiler/ir/passes/shader_info_collection_pass.cpp
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@ -1,6 +1,7 @@
// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "common/config.h"
#include "shader_recompiler/ir/program.h"
#include "video_core/buffer_cache/buffer_cache.h"
@ -138,7 +139,7 @@ void Visit(Info& info, const IR::Inst& inst) {
}
}
void CollectShaderInfoPass(IR::Program& program) {
void CollectShaderInfoPass(IR::Program& program, const Profile& profile) {
auto& info = program.info;
for (IR::Block* const block : program.post_order_blocks) {
for (IR::Inst& inst : block->Instructions()) {
@ -146,6 +147,25 @@ void CollectShaderInfoPass(IR::Program& program) {
}
}
// In case Flatbuf has not already been bound by IR and is needed
// to query buffer sizes, bind it now.
if (!profile.supports_robust_buffer_access && !info.uses_dma) {
info.buffers.push_back({
.used_types = IR::Type::U32,
// We can't guarantee that flatbuf will not grow past UBO
// limit if there are a lot of ReadConsts. (We could specialize)
.inline_cbuf = AmdGpu::Buffer::Placeholder(std::numeric_limits<u32>::max()),
.buffer_type = BufferType::Flatbuf,
});
// In the future we may want to read buffer sizes from GPU memory if available.
// info.readconst_types |= Info::ReadConstType::Immediate;
}
if (!Config::directMemoryAccess()) {
info.uses_dma = false;
info.readconst_types = Info::ReadConstType::None;
}
if (info.uses_dma) {
info.buffers.push_back({
.used_types = IR::Type::U64,