2022-04-23 04:59:50 -04:00
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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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2021-04-26 02:53:26 -04:00
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#include <algorithm>
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#include <array>
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#include <vector>
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#include "common/assert.h"
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#include "shader_recompiler/frontend/maxwell/control_flow.h"
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#include "shader_recompiler/object_pool.h"
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2021-11-05 10:52:31 -04:00
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#include "video_core/control/channel_state.h"
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#include "video_core/dirty_flags.h"
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#include "video_core/engines/kepler_compute.h"
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/memory_manager.h"
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#include "video_core/shader_cache.h"
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#include "video_core/shader_environment.h"
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namespace VideoCommon {
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void ShaderCache::InvalidateRegion(VAddr addr, size_t size) {
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std::scoped_lock lock{invalidation_mutex};
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InvalidatePagesInRegion(addr, size);
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RemovePendingShaders();
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}
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void ShaderCache::OnCPUWrite(VAddr addr, size_t size) {
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2022-04-07 14:32:40 -04:00
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std::scoped_lock lock{invalidation_mutex};
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InvalidatePagesInRegion(addr, size);
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}
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void ShaderCache::SyncGuestHost() {
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std::scoped_lock lock{invalidation_mutex};
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RemovePendingShaders();
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}
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ShaderCache::ShaderCache(VideoCore::RasterizerInterface& rasterizer_) : rasterizer{rasterizer_} {}
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bool ShaderCache::RefreshStages(std::array<u64, 6>& unique_hashes) {
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auto& dirty{maxwell3d->dirty.flags};
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if (!dirty[VideoCommon::Dirty::Shaders]) {
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return last_shaders_valid;
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}
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dirty[VideoCommon::Dirty::Shaders] = false;
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2022-08-12 05:58:09 -04:00
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const GPUVAddr base_addr{maxwell3d->regs.program_region.Address()};
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for (size_t index = 0; index < Tegra::Engines::Maxwell3D::Regs::MaxShaderProgram; ++index) {
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if (!maxwell3d->regs.IsShaderConfigEnabled(index)) {
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unique_hashes[index] = 0;
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continue;
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}
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2022-08-12 05:58:09 -04:00
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const auto& shader_config{maxwell3d->regs.pipelines[index]};
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const auto program{static_cast<Tegra::Engines::Maxwell3D::Regs::ShaderType>(index)};
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const GPUVAddr shader_addr{base_addr + shader_config.offset};
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const std::optional<VAddr> cpu_shader_addr{gpu_memory->GpuToCpuAddress(shader_addr)};
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if (!cpu_shader_addr) {
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LOG_ERROR(HW_GPU, "Invalid GPU address for shader 0x{:016x}", shader_addr);
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last_shaders_valid = false;
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return false;
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}
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const ShaderInfo* shader_info{TryGet(*cpu_shader_addr)};
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if (!shader_info) {
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const u32 start_address{shader_config.offset};
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GraphicsEnvironment env{*maxwell3d, *gpu_memory, program, base_addr, start_address};
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shader_info = MakeShaderInfo(env, *cpu_shader_addr);
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}
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shader_infos[index] = shader_info;
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unique_hashes[index] = shader_info->unique_hash;
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}
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last_shaders_valid = true;
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return true;
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}
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const ShaderInfo* ShaderCache::ComputeShader() {
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const GPUVAddr program_base{kepler_compute->regs.code_loc.Address()};
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const auto& qmd{kepler_compute->launch_description};
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const GPUVAddr shader_addr{program_base + qmd.program_start};
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const std::optional<VAddr> cpu_shader_addr{gpu_memory->GpuToCpuAddress(shader_addr)};
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if (!cpu_shader_addr) {
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LOG_ERROR(HW_GPU, "Invalid GPU address for shader 0x{:016x}", shader_addr);
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return nullptr;
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}
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if (const ShaderInfo* const shader = TryGet(*cpu_shader_addr)) {
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return shader;
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}
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ComputeEnvironment env{*kepler_compute, *gpu_memory, program_base, qmd.program_start};
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return MakeShaderInfo(env, *cpu_shader_addr);
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}
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2021-05-23 03:28:34 -04:00
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void ShaderCache::GetGraphicsEnvironments(GraphicsEnvironments& result,
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const std::array<u64, NUM_PROGRAMS>& unique_hashes) {
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size_t env_index{};
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const GPUVAddr base_addr{maxwell3d->regs.program_region.Address()};
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for (size_t index = 0; index < NUM_PROGRAMS; ++index) {
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if (unique_hashes[index] == 0) {
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continue;
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}
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const auto program{static_cast<Tegra::Engines::Maxwell3D::Regs::ShaderType>(index)};
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auto& env{result.envs[index]};
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const u32 start_address{maxwell3d->regs.pipelines[index].offset};
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env = GraphicsEnvironment{*maxwell3d, *gpu_memory, program, base_addr, start_address};
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env.SetCachedSize(shader_infos[index]->size_bytes);
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result.env_ptrs[env_index++] = &env;
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}
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}
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ShaderInfo* ShaderCache::TryGet(VAddr addr) const {
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std::scoped_lock lock{lookup_mutex};
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const auto it = lookup_cache.find(addr);
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if (it == lookup_cache.end()) {
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return nullptr;
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}
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return it->second->data;
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}
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void ShaderCache::Register(std::unique_ptr<ShaderInfo> data, VAddr addr, size_t size) {
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std::scoped_lock lock{invalidation_mutex, lookup_mutex};
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const VAddr addr_end = addr + size;
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Entry* const entry = NewEntry(addr, addr_end, data.get());
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2022-08-18 19:28:55 -04:00
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const u64 page_end = (addr_end + YUZU_PAGESIZE - 1) >> YUZU_PAGEBITS;
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for (u64 page = addr >> YUZU_PAGEBITS; page < page_end; ++page) {
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invalidation_cache[page].push_back(entry);
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}
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storage.push_back(std::move(data));
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rasterizer.UpdatePagesCachedCount(addr, size, 1);
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}
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void ShaderCache::InvalidatePagesInRegion(VAddr addr, size_t size) {
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const VAddr addr_end = addr + size;
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const u64 page_end = (addr_end + YUZU_PAGESIZE - 1) >> YUZU_PAGEBITS;
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for (u64 page = addr >> YUZU_PAGEBITS; page < page_end; ++page) {
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auto it = invalidation_cache.find(page);
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if (it == invalidation_cache.end()) {
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continue;
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}
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InvalidatePageEntries(it->second, addr, addr_end);
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}
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}
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void ShaderCache::RemovePendingShaders() {
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if (marked_for_removal.empty()) {
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return;
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}
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// Remove duplicates
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std::ranges::sort(marked_for_removal);
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marked_for_removal.erase(std::unique(marked_for_removal.begin(), marked_for_removal.end()),
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marked_for_removal.end());
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std::vector<ShaderInfo*> removed_shaders;
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removed_shaders.reserve(marked_for_removal.size());
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std::scoped_lock lock{lookup_mutex};
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for (Entry* const entry : marked_for_removal) {
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removed_shaders.push_back(entry->data);
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const auto it = lookup_cache.find(entry->addr_start);
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ASSERT(it != lookup_cache.end());
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lookup_cache.erase(it);
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}
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marked_for_removal.clear();
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if (!removed_shaders.empty()) {
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2022-02-01 01:39:40 -05:00
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RemoveShadersFromStorage(removed_shaders);
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}
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}
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void ShaderCache::InvalidatePageEntries(std::vector<Entry*>& entries, VAddr addr, VAddr addr_end) {
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size_t index = 0;
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while (index < entries.size()) {
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Entry* const entry = entries[index];
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if (!entry->Overlaps(addr, addr_end)) {
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++index;
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continue;
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}
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UnmarkMemory(entry);
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RemoveEntryFromInvalidationCache(entry);
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marked_for_removal.push_back(entry);
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}
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}
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void ShaderCache::RemoveEntryFromInvalidationCache(const Entry* entry) {
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const u64 page_end = (entry->addr_end + YUZU_PAGESIZE - 1) >> YUZU_PAGEBITS;
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for (u64 page = entry->addr_start >> YUZU_PAGEBITS; page < page_end; ++page) {
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const auto entries_it = invalidation_cache.find(page);
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ASSERT(entries_it != invalidation_cache.end());
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std::vector<Entry*>& entries = entries_it->second;
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const auto entry_it = std::ranges::find(entries, entry);
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ASSERT(entry_it != entries.end());
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entries.erase(entry_it);
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}
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}
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void ShaderCache::UnmarkMemory(Entry* entry) {
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if (!entry->is_memory_marked) {
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return;
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}
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entry->is_memory_marked = false;
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const VAddr addr = entry->addr_start;
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const size_t size = entry->addr_end - addr;
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rasterizer.UpdatePagesCachedCount(addr, size, -1);
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}
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2022-02-01 01:39:40 -05:00
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void ShaderCache::RemoveShadersFromStorage(std::span<ShaderInfo*> removed_shaders) {
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// Remove them from the cache
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std::erase_if(storage, [&removed_shaders](const std::unique_ptr<ShaderInfo>& shader) {
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return std::ranges::find(removed_shaders, shader.get()) != removed_shaders.end();
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});
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}
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ShaderCache::Entry* ShaderCache::NewEntry(VAddr addr, VAddr addr_end, ShaderInfo* data) {
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auto entry = std::make_unique<Entry>(Entry{addr, addr_end, data});
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Entry* const entry_pointer = entry.get();
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lookup_cache.emplace(addr, std::move(entry));
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return entry_pointer;
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}
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const ShaderInfo* ShaderCache::MakeShaderInfo(GenericEnvironment& env, VAddr cpu_addr) {
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auto info = std::make_unique<ShaderInfo>();
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if (const std::optional<u64> cached_hash{env.Analyze()}) {
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info->unique_hash = *cached_hash;
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info->size_bytes = env.CachedSize();
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} else {
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// Slow path, not really hit on commercial games
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// Build a control flow graph to get the real shader size
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Shader::ObjectPool<Shader::Maxwell::Flow::Block> flow_block;
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Shader::Maxwell::Flow::CFG cfg{env, flow_block, env.StartAddress()};
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info->unique_hash = env.CalculateHash();
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info->size_bytes = env.ReadSize();
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}
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const size_t size_bytes{info->size_bytes};
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const ShaderInfo* const result{info.get()};
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Register(std::move(info), cpu_addr, size_bytes);
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return result;
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}
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} // namespace VideoCommon
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