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Merge pull request #9822 from ameerj/buffcache-ssbo-addr

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buffer_cache: Add logic for non-NVN storage buffer tracking
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liamwhite 2023-03-09 09:18:39 -05:00 committed by GitHub
commit b5c0c1e163
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 27 additions and 5 deletions
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8
src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp
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@ -35,6 +35,7 @@ struct Bias {
u32 index;
u32 offset_begin;
u32 offset_end;
u32 alignment;
};
using boost::container::flat_set;
@ -349,7 +350,8 @@ std::optional<StorageBufferAddr> Track(const IR::Value& value, const Bias* bias)
.index = index.U32(),
.offset = offset.U32(),
};
if (!Common::IsAligned(storage_buffer.offset, 16)) {
const u32 alignment{bias ? bias->alignment : 8U};
if (!Common::IsAligned(storage_buffer.offset, alignment)) {
// The SSBO pointer has to be aligned
return std::nullopt;
}
@ -371,6 +373,7 @@ void CollectStorageBuffers(IR::Block& block, IR::Inst& inst, StorageInfo& info)
.index = 0,
.offset_begin = 0x110,
.offset_end = 0x610,
.alignment = 16,
};
// Track the low address of the instruction
const std::optional<LowAddrInfo> low_addr_info{TrackLowAddress(&inst)};
@ -386,8 +389,11 @@ void CollectStorageBuffers(IR::Block& block, IR::Inst& inst, StorageInfo& info)
storage_buffer = Track(low_addr, nullptr);
if (!storage_buffer) {
// If that also fails, use NVN fallbacks
LOG_WARNING(Shader, "Storage buffer failed to track, using global memory fallbacks");
return;
}
LOG_WARNING(Shader, "Storage buffer tracked without bias, index {} offset {}",
storage_buffer->index, storage_buffer->offset);
}
// Collect storage buffer and the instruction
if (IsGlobalMemoryWrite(inst)) {

24
src/video_core/buffer_cache/buffer_cache.h
View File

@ -383,7 +383,8 @@ private:
void NotifyBufferDeletion();
[[nodiscard]] Binding StorageBufferBinding(GPUVAddr ssbo_addr, bool is_written = false) const;
[[nodiscard]] Binding StorageBufferBinding(GPUVAddr ssbo_addr, u32 cbuf_index,
bool is_written = false) const;
[[nodiscard]] TextureBufferBinding GetTextureBufferBinding(GPUVAddr gpu_addr, u32 size,
PixelFormat format);
@ -802,7 +803,7 @@ void BufferCache<P>::BindGraphicsStorageBuffer(size_t stage, size_t ssbo_index,
const auto& cbufs = maxwell3d->state.shader_stages[stage];
const GPUVAddr ssbo_addr = cbufs.const_buffers[cbuf_index].address + cbuf_offset;
storage_buffers[stage][ssbo_index] = StorageBufferBinding(ssbo_addr, is_written);
storage_buffers[stage][ssbo_index] = StorageBufferBinding(ssbo_addr, cbuf_index, is_written);
}
template <class P>
@ -842,7 +843,7 @@ void BufferCache<P>::BindComputeStorageBuffer(size_t ssbo_index, u32 cbuf_index,
const auto& cbufs = launch_desc.const_buffer_config;
const GPUVAddr ssbo_addr = cbufs[cbuf_index].Address() + cbuf_offset;
compute_storage_buffers[ssbo_index] = StorageBufferBinding(ssbo_addr, is_written);
compute_storage_buffers[ssbo_index] = StorageBufferBinding(ssbo_addr, cbuf_index, is_written);
}
template <class P>
@ -1988,11 +1989,26 @@ void BufferCache<P>::NotifyBufferDeletion() {
template <class P>
typename BufferCache<P>::Binding BufferCache<P>::StorageBufferBinding(GPUVAddr ssbo_addr,
u32 cbuf_index,
bool is_written) const {
const GPUVAddr gpu_addr = gpu_memory->Read<u64>(ssbo_addr);
const u32 size = gpu_memory->Read<u32>(ssbo_addr + 8);
const auto size = [&]() {
const bool is_nvn_cbuf = cbuf_index == 0;
// The NVN driver buffer (index 0) is known to pack the SSBO address followed by its size.
if (is_nvn_cbuf) {
return gpu_memory->Read<u32>(ssbo_addr + 8);
}
// Other titles (notably Doom Eternal) may use STG/LDG on buffer addresses in custom defined
// cbufs, which do not store the sizes adjacent to the addresses, so use the fully
// mapped buffer size for now.
const u32 memory_layout_size = static_cast<u32>(gpu_memory->GetMemoryLayoutSize(gpu_addr));
LOG_INFO(HW_GPU, "Binding storage buffer for cbuf index {}, MemoryLayoutSize 0x{:X}",
cbuf_index, memory_layout_size);
return memory_layout_size;
}();
const std::optional<VAddr> cpu_addr = gpu_memory->GpuToCpuAddress(gpu_addr);
if (!cpu_addr || size == 0) {
LOG_WARNING(HW_GPU, "Failed to find storage buffer for cbuf index {}", cbuf_index);
return NULL_BINDING;
}
const VAddr cpu_end = Common::AlignUp(*cpu_addr + size, Core::Memory::YUZU_PAGESIZE);