mirror of
https://github.com/wheremyfoodat/Panda3DS.git
synced 2025-04-06 14:15:41 +12:00
Initial fastmem support
* PCSX2 fastmem depression * Move away from PCSX2 fastmem * Add enum_flag_ops.hpp * Finally building on Windows * Almost got a PoC * Fix arm64 builds * This somehow works * This also works... * Properly fix fastmem * Add free region manager * Update boost * Add ScopeExit * Comment out asserts on Linux/Mac/Android * Comment out ASSERT_MSG asserts too * Fix derp * Attempt to fix Android * Disable fastmem on Android * Fix Android again maybe pt 2 * android pls * AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA * AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA * Update host_memory.cpp * Properly reset memory arena on reset * Proper ashmem code for Android * more * Add temporary Android buildjet script for faster prototype builds * Fix fastmem (again) * Clean up shared memory
This commit is contained in:
wheremyfoodat
GitHub
parent
28461a1d44
commit
c088911168
18 changed files with 2139 additions and 13 deletions
74
.github/workflows/Android_Build_Buildjet.yml
vendored
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74
.github/workflows/Android_Build_Buildjet.yml
vendored
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@ -0,0 +1,74 @@
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name: Android Build (Buildjet)
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on:
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push:
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branches:
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- master
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pull_request:
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jobs:
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arm64:
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runs-on: buildjet-32vcpu-ubuntu-2204
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strategy:
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matrix:
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build_type:
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- release
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steps:
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- name: Set BUILD_TYPE variable
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run: echo "BUILD_TYPE=${{ matrix.build_type }}" >> $GITHUB_ENV
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- uses: actions/checkout@v4
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- name: Fetch submodules
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run: git submodule update --init --recursive
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- name: Set up gradle caches
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uses: actions/cache@v4
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with:
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path: |
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~/.gradle/caches
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~/.gradle/wrapper
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key: ${{ runner.os }}-pandroid-arm64-${{ github.sha }}
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restore-keys: |
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${{ runner.os }}-pandroid-arm64-
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- name: Setup Vulkan SDK
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uses: humbletim/setup-vulkan-sdk@v1.2.0
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with:
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vulkan-query-version: latest
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vulkan-use-cache: true
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vulkan-components: Vulkan-Headers, Vulkan-Loader, SPIRV-Tools, Glslang
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- name: Setup Java
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uses: actions/setup-java@v4
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with:
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distribution: 'zulu'
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java-version: '17'
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- name: Configure CMake
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run: cmake -B ${{github.workspace}}/build -DBUILD_HYDRA_CORE=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK_ROOT}/build/cmake/android.toolchain.cmake -DANDROID_ABI=arm64-v8a -DENABLE_VULKAN=0 -DENABLE_USER_BUILD=ON -DCMAKE_CXX_FLAGS="-march=armv8-a+crypto"
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- name: Build
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run: |
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# Apply patch for GLES compatibility
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git apply ./.github/gles.patch
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# Build the project with CMake
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cmake --build ${{github.workspace}}/build --config RelWithDebInfo
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# Strip the generated library and move it to the appropriate location
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${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip --strip-unneeded ./build/libAlber.so
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mv ./build/libAlber.so ./src/pandroid/app/src/main/jniLibs/arm64-v8a/
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# Build the Android app with Gradle
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cd src/pandroid
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./gradlew assembleDebug
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ls -R app/build/outputs
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cd ../..
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- name: Upload artifacts
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uses: actions/upload-artifact@v4
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with:
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name: Android APKs (arm64)
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path: |
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./src/pandroid/app/build/outputs/apk/${{ env.BUILD_TYPE }}/app-${{ env.BUILD_TYPE }}.apk
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@ -63,6 +63,7 @@ option(BUILD_HYDRA_CORE "Build a Hydra core" OFF)
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option(BUILD_LIBRETRO_CORE "Build a Libretro core" OFF)
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option(ENABLE_RENDERDOC_API "Build with support for Renderdoc's capture API for graphics debugging" ON)
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option(DISABLE_SSE4 "Build with SSE4 instructions disabled, may reduce performance" OFF)
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option(ENABLE_FASTMEM "Build with support for hardware fastmem" ON)
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set(OPENGL_PROFILE ${DEFAULT_OPENGL_PROFILE} CACHE STRING "OpenGL profile to use if OpenGL is enabled. Valid values are 'OpenGL' and 'OpenGLES'.")
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set_property(CACHE OPENGL_PROFILE PROPERTY STRINGS OpenGL OpenGLES)
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@ -165,6 +166,7 @@ include_directories(third_party/toml11)
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include_directories(third_party/glm)
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include_directories(third_party/renderdoc)
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include_directories(third_party/duckstation)
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include_directories(third_party/host_memory/include)
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add_subdirectory(third_party/cmrc)
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@ -280,7 +282,7 @@ set(SOURCE_FILES src/emulator.cpp src/io_file.cpp src/config.cpp
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src/core/memory.cpp src/renderer.cpp src/core/renderer_null/renderer_null.cpp
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src/http_server.cpp src/stb_image_write.c src/core/cheats.cpp src/core/action_replay.cpp
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src/discord_rpc.cpp src/lua.cpp src/memory_mapped_file.cpp src/miniaudio.cpp src/renderdoc.cpp
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src/frontend_settings.cpp
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src/frontend_settings.cpp src/dynamic_library.cpp
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)
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set(CRYPTO_SOURCE_FILES src/core/crypto/aes_engine.cpp)
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set(KERNEL_SOURCE_FILES src/core/kernel/kernel.cpp src/core/kernel/resource_limits.cpp
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@ -362,7 +364,8 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/termcolor.hpp
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include/PICA/pica_vert_config.hpp include/sdl_sensors.hpp include/PICA/draw_acceleration.hpp include/renderdoc.hpp
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include/align.hpp include/audio/aac_decoder.hpp include/PICA/pica_simd.hpp include/services/fonts.hpp
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include/audio/audio_interpolation.hpp include/audio/hle_mixer.hpp include/audio/dsp_simd.hpp
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include/services/dsp_firmware_db.hpp include/frontend_settings.hpp
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include/enum_flag_ops.hpp include/services/dsp_firmware_db.hpp include/frontend_settings.hpp
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include/dynamic_library.hpp
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)
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cmrc_add_resource_library(
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@ -380,6 +383,9 @@ set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp
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third_party/cityhash/cityhash.cpp
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third_party/xxhash/xxhash.c
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third_party/host_memory/host_memory.cpp
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third_party/host_memory/virtual_buffer.cpp
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)
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if(ENABLE_LUAJIT AND NOT ANDROID)
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@ -625,6 +631,10 @@ if(ENABLE_HTTP_SERVER)
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target_compile_definitions(AlberCore PRIVATE PANDA3DS_ENABLE_HTTP_SERVER=1)
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endif()
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if(ENABLE_FASTMEM)
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target_compile_definitions(AlberCore PRIVATE PANDA3DS_HARDWARE_FASTMEM=1)
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endif()
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# Configure frontend
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if(ENABLE_QT_GUI)
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|
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73
include/dynamic_library.hpp
Normal file
73
include/dynamic_library.hpp
Normal file
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@ -0,0 +1,73 @@
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// SPDX-FileCopyrightText: 2019 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <string>
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namespace Common {
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/**
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* Provides a platform-independent interface for loading a dynamic library and retrieving symbols.
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* The interface maintains an internal reference count to allow one handle to be shared between
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* multiple users.
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*/
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class DynamicLibrary final {
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public:
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/// Default constructor, does not load a library.
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explicit DynamicLibrary();
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/// Automatically loads the specified library. Call IsOpen() to check validity before use.
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explicit DynamicLibrary(const char* filename);
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/// Initializes the dynamic library with an already opened handle.
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explicit DynamicLibrary(void* handle_);
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/// Moves the library.
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DynamicLibrary(DynamicLibrary&&) noexcept;
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DynamicLibrary& operator=(DynamicLibrary&&) noexcept;
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|
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/// Delete copies, we can't copy a dynamic library.
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DynamicLibrary(const DynamicLibrary&) = delete;
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DynamicLibrary& operator=(const DynamicLibrary&) = delete;
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/// Closes the library.
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~DynamicLibrary();
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/// Returns the specified library name with the platform-specific suffix added.
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[[nodiscard]] static std::string getUnprefixedFilename(const char* filename);
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|
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/// Returns the specified library name in platform-specific format.
|
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/// Major/minor versions will not be included if set to -1.
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/// If libname already contains the "lib" prefix, it will not be added again.
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/// Windows: LIBNAME-MAJOR-MINOR.dll
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/// Linux: libLIBNAME.so.MAJOR.MINOR
|
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/// Mac: libLIBNAME.MAJOR.MINOR.dylib
|
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[[nodiscard]] static std::string getVersionedFilename(const char* libname, int major = -1, int minor = -1);
|
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|
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/// Returns true if a module is loaded, otherwise false.
|
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[[nodiscard]] bool isOpen() const { return handle != nullptr; }
|
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|
||||
/// Loads (or replaces) the handle with the specified library file name.
|
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/// Returns true if the library was loaded and can be used.
|
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[[nodiscard]] bool open(const char* filename);
|
||||
|
||||
/// Unloads the library, any function pointers from this library are no longer valid.
|
||||
void close();
|
||||
|
||||
/// Returns the address of the specified symbol (function or variable) as an untyped pointer.
|
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/// If the specified symbol does not exist in this library, nullptr is returned.
|
||||
[[nodiscard]] void* getSymbolAddress(const char* name) const;
|
||||
|
||||
/// Obtains the address of the specified symbol, automatically casting to the correct type.
|
||||
/// Returns true if the symbol was found and assigned, otherwise false.
|
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template <typename T>
|
||||
[[nodiscard]] bool getSymbol(const char* name, T* ptr) const {
|
||||
*ptr = reinterpret_cast<T>(getSymbolAddress(name));
|
||||
return *ptr != nullptr;
|
||||
}
|
||||
|
||||
private:
|
||||
/// Platform-dependent data type representing a dynamic library handle.
|
||||
void* handle = nullptr;
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||||
};
|
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} // namespace Common
|
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|
@ -40,9 +40,9 @@ enum class ROMType {
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|
||||
class Emulator {
|
||||
EmulatorConfig config;
|
||||
Memory memory;
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CPU cpu;
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GPU gpu;
|
||||
Memory memory;
|
||||
Kernel kernel;
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||||
std::unique_ptr<Audio::DSPCore> dsp;
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Scheduler scheduler;
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||||
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|
@ -55,7 +55,7 @@ class Emulator {
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static constexpr u32 width = 400;
|
||||
static constexpr u32 height = 240 * 2; // * 2 because 2 screens
|
||||
ROMType romType = ROMType::None;
|
||||
bool running = false; // Is the emulator running a game?
|
||||
bool running = false; // Is the emulator running a game?
|
||||
|
||||
private:
|
||||
#ifdef PANDA3DS_ENABLE_HTTP_SERVER
|
||||
|
|
|
|||
60
include/enum_flag_ops.hpp
Normal file
60
include/enum_flag_ops.hpp
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <type_traits>
|
||||
|
||||
#define DECLARE_ENUM_FLAG_OPERATORS(type) \
|
||||
[[nodiscard]] constexpr type operator|(type a, type b) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
|
||||
} \
|
||||
[[nodiscard]] constexpr type operator&(type a, type b) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
|
||||
} \
|
||||
[[nodiscard]] constexpr type operator^(type a, type b) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(static_cast<T>(a) ^ static_cast<T>(b)); \
|
||||
} \
|
||||
[[nodiscard]] constexpr type operator<<(type a, type b) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(static_cast<T>(a) << static_cast<T>(b)); \
|
||||
} \
|
||||
[[nodiscard]] constexpr type operator>>(type a, type b) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(static_cast<T>(a) >> static_cast<T>(b)); \
|
||||
} \
|
||||
constexpr type& operator|=(type& a, type b) noexcept { \
|
||||
a = a | b; \
|
||||
return a; \
|
||||
} \
|
||||
constexpr type& operator&=(type& a, type b) noexcept { \
|
||||
a = a & b; \
|
||||
return a; \
|
||||
} \
|
||||
constexpr type& operator^=(type& a, type b) noexcept { \
|
||||
a = a ^ b; \
|
||||
return a; \
|
||||
} \
|
||||
constexpr type& operator<<=(type& a, type b) noexcept { \
|
||||
a = a << b; \
|
||||
return a; \
|
||||
} \
|
||||
constexpr type& operator>>=(type& a, type b) noexcept { \
|
||||
a = a >> b; \
|
||||
return a; \
|
||||
} \
|
||||
[[nodiscard]] constexpr type operator~(type key) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<type>(~static_cast<T>(key)); \
|
||||
} \
|
||||
[[nodiscard]] constexpr bool True(type key) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<T>(key) != 0; \
|
||||
} \
|
||||
[[nodiscard]] constexpr bool False(type key) noexcept { \
|
||||
using T = std::underlying_type_t<type>; \
|
||||
return static_cast<T>(key) == 0; \
|
||||
}
|
||||
|
|
@ -3,6 +3,7 @@
|
|||
#include <bitset>
|
||||
#include <filesystem>
|
||||
#include <fstream>
|
||||
#include <memory>
|
||||
#include <optional>
|
||||
#include <vector>
|
||||
|
||||
|
|
@ -10,8 +11,9 @@
|
|||
#include "crypto/aes_engine.hpp"
|
||||
#include "handles.hpp"
|
||||
#include "helpers.hpp"
|
||||
#include "loader/ncsd.hpp"
|
||||
#include "host_memory/host_memory.h"
|
||||
#include "loader/3dsx.hpp"
|
||||
#include "loader/ncsd.hpp"
|
||||
#include "services/region_codes.hpp"
|
||||
|
||||
namespace PhysicalAddrs {
|
||||
|
|
@ -108,7 +110,7 @@ class Memory {
|
|||
u8* dspRam; // Provided to us by Audio
|
||||
u8* vram; // Provided to the memory class by the GPU class
|
||||
|
||||
u64& cpuTicks; // Reference to the CPU tick counter
|
||||
const u64* cpuTicks = nullptr; // Pointer to the CPU tick counter, provided to us by the CPU class
|
||||
using SharedMemoryBlock = KernelMemoryTypes::SharedMemoryBlock;
|
||||
|
||||
// Our dynarmic core uses page tables for reads and writes with 4096 byte pages
|
||||
|
|
@ -141,6 +143,36 @@ public:
|
|||
static constexpr u32 DSP_DATA_MEMORY_OFFSET = u32(256_KB);
|
||||
|
||||
private:
|
||||
// We also use MMU-accelerated fastmem for fast memory emulation
|
||||
// This means that we've got a 4GB memory arena which is organized the same way as the emulated 3DS' memory map
|
||||
// And we can access this directly instead of calling the memory read/write functions, which would be slower
|
||||
// Regions that are not mapped or can't be accelerated this way will segfault, and the caller (eg dynarmic), will
|
||||
// handle this segfault and call the Slower memory read/write functions
|
||||
bool useFastmem = false;
|
||||
static constexpr size_t FASTMEM_FCRAM_OFFSET = 0; // Offset of FCRAM in the fastmem arena
|
||||
static constexpr size_t FASTMEM_DSP_RAM_OFFSET = FASTMEM_FCRAM_OFFSET + FCRAM_SIZE; // Offset of DSP RAM
|
||||
|
||||
static constexpr size_t FASTMEM_BACKING_SIZE = FCRAM_SIZE + DSP_RAM_SIZE;
|
||||
// Total size of the virtual address space we will occupy (4GB)
|
||||
static constexpr size_t FASTMEM_VIRTUAL_SIZE = 4_GB;
|
||||
|
||||
Common::HostMemory* arena;
|
||||
|
||||
void addFastmemView(u32 guestVaddr, size_t arenaOffset, size_t size, bool w, bool x = false) {
|
||||
if (useFastmem) {
|
||||
Common::MemoryPermission perms = Common::MemoryPermission::Read;
|
||||
if (w) {
|
||||
perms |= Common::MemoryPermission::Write;
|
||||
}
|
||||
|
||||
if (x) {
|
||||
//perms |= Common::MemoryPermission::Execute;
|
||||
}
|
||||
|
||||
arena->Map(guestVaddr, arenaOffset, size, perms, false);
|
||||
}
|
||||
}
|
||||
|
||||
std::bitset<FCRAM_PAGE_COUNT> usedFCRAMPages;
|
||||
std::optional<u32> findPaddr(u32 size);
|
||||
u64 timeSince3DSEpoch();
|
||||
|
|
@ -172,7 +204,7 @@ private:
|
|||
u32 usedUserMemory = u32(0_MB); // How much of the APPLICATION FCRAM range is used (allocated to the appcore)
|
||||
u32 usedSystemMemory = u32(0_MB); // Similar for the SYSTEM range (reserved for the syscore)
|
||||
|
||||
Memory(u64& cpuTicks, const EmulatorConfig& config);
|
||||
Memory(const EmulatorConfig& config);
|
||||
void reset();
|
||||
void* getReadPointer(u32 address);
|
||||
void* getWritePointer(u32 address);
|
||||
|
|
@ -295,8 +327,12 @@ private:
|
|||
|
||||
void setVRAM(u8* pointer) { vram = pointer; }
|
||||
void setDSPMem(u8* pointer) { dspRam = pointer; }
|
||||
void setCPUTicks(const u64& ticks) { cpuTicks = &ticks; }
|
||||
|
||||
bool allocateMainThreadStack(u32 size);
|
||||
Regions getConsoleRegion();
|
||||
void copySharedFont(u8* ptr, u32 vaddr);
|
||||
|
||||
bool isFastmemEnabled() { return useFastmem; }
|
||||
u8* getFastmemArenaBase() { return arena->VirtualBasePointer(); }
|
||||
};
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@
|
|||
|
||||
CPU::CPU(Memory& mem, Kernel& kernel, Emulator& emu) : mem(mem), emu(emu), scheduler(emu.getScheduler()), env(mem, kernel, emu.getScheduler()) {
|
||||
cp15 = std::make_shared<CP15>();
|
||||
mem.setCPUTicks(getTicksRef());
|
||||
|
||||
Dynarmic::A32::UserConfig config;
|
||||
config.arch_version = Dynarmic::A32::ArchVersion::v6K;
|
||||
|
|
@ -15,6 +16,12 @@ CPU::CPU(Memory& mem, Kernel& kernel, Emulator& emu) : mem(mem), emu(emu), sched
|
|||
config.global_monitor = &exclusiveMonitor;
|
||||
config.processor_id = 0;
|
||||
|
||||
if (mem.isFastmemEnabled()) {
|
||||
config.fastmem_pointer = u64(mem.getFastmemArenaBase());
|
||||
} else {
|
||||
config.fastmem_pointer = std::nullopt;
|
||||
}
|
||||
|
||||
jit = std::make_unique<Dynarmic::A32::Jit>(config);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -14,12 +14,17 @@ CMRC_DECLARE(ConsoleFonts);
|
|||
|
||||
using namespace KernelMemoryTypes;
|
||||
|
||||
Memory::Memory(u64& cpuTicks, const EmulatorConfig& config) : cpuTicks(cpuTicks), config(config) {
|
||||
fcram = new uint8_t[FCRAM_SIZE]();
|
||||
Memory::Memory(const EmulatorConfig& config) : config(config) {
|
||||
arena = new Common::HostMemory(FASTMEM_BACKING_SIZE, FASTMEM_VIRTUAL_SIZE, false);
|
||||
|
||||
readTable.resize(totalPageCount, 0);
|
||||
writeTable.resize(totalPageCount, 0);
|
||||
memoryInfo.reserve(32); // Pre-allocate some room for memory allocation info to avoid dynamic allocs
|
||||
|
||||
fcram = arena->BackingBasePointer() + FASTMEM_FCRAM_OFFSET;
|
||||
// arenaDSPRam = arena->BackingBasePointer() + FASTMEM_DSP_RAM_OFFSET;
|
||||
|
||||
useFastmem = arena->VirtualBasePointer() != nullptr;
|
||||
}
|
||||
|
||||
void Memory::reset() {
|
||||
|
|
@ -29,6 +34,11 @@ void Memory::reset() {
|
|||
usedUserMemory = u32(0_MB);
|
||||
usedSystemMemory = u32(0_MB);
|
||||
|
||||
if (useFastmem) {
|
||||
// Unmap any mappings when resetting
|
||||
arena->Unmap(0, 4_GB, false);
|
||||
}
|
||||
|
||||
for (u32 i = 0; i < totalPageCount; i++) {
|
||||
readTable[i] = 0;
|
||||
writeTable[i] = 0;
|
||||
|
|
@ -70,6 +80,9 @@ void Memory::reset() {
|
|||
writeTable[i + initialPage] = pointer;
|
||||
}
|
||||
|
||||
// Allocate RW mapping for DSP RAM
|
||||
// addFastmemView(VirtualAddrs::DSPMemStart, FASTMEM_DSP_RAM_OFFSET, DSP_RAM_SIZE, true, false);
|
||||
|
||||
// Later adjusted based on ROM header when possible
|
||||
region = Regions::USA;
|
||||
}
|
||||
|
|
@ -163,8 +176,8 @@ u32 Memory::read32(u32 vaddr) {
|
|||
case ConfigMem::Datetime0 + 4:
|
||||
return u32(timeSince3DSEpoch() >> 32); // top 32 bits
|
||||
// Ticks since time was last updated. For now we return the current tick count
|
||||
case ConfigMem::Datetime0 + 8: return u32(cpuTicks);
|
||||
case ConfigMem::Datetime0 + 12: return u32(cpuTicks >> 32);
|
||||
case ConfigMem::Datetime0 + 8: return u32(*cpuTicks);
|
||||
case ConfigMem::Datetime0 + 12: return u32(*cpuTicks >> 32);
|
||||
case ConfigMem::Datetime0 + 16: return 0xFFB0FF0; // Unknown, set by PTM
|
||||
case ConfigMem::Datetime0 + 20:
|
||||
case ConfigMem::Datetime0 + 24:
|
||||
|
|
@ -357,6 +370,9 @@ std::optional<u32> Memory::allocateMemory(u32 vaddr, u32 paddr, u32 size, bool l
|
|||
|
||||
// Mark FCRAM page as allocated and go on
|
||||
usedFCRAMPages[physPage] = true;
|
||||
// Add mapping to the fastmem arena
|
||||
addFastmemView(size_t(virtualPage) * pageSize, FASTMEM_FCRAM_OFFSET + size_t(physPage) * pageSize, pageSize, w, false);
|
||||
|
||||
virtualPage++;
|
||||
physPage++;
|
||||
}
|
||||
|
|
@ -481,6 +497,10 @@ void Memory::mirrorMapping(u32 destAddress, u32 sourceAddress, u32 size) {
|
|||
|
||||
const u32 pageCount = size / pageSize; // How many pages we need to mirror
|
||||
for (u32 i = 0; i < pageCount; i++) {
|
||||
if (useFastmem) {
|
||||
Helpers::panic("Unimplemented: Mirror mapping with fastmem enabled");
|
||||
}
|
||||
|
||||
// Redo the shift here to "properly" handle wrapping around the address space instead of reading OoB
|
||||
const u32 sourcePage = sourceAddress / pageSize;
|
||||
const u32 destPage = destAddress / pageSize;
|
||||
|
|
|
|||
96
src/dynamic_library.cpp
Normal file
96
src/dynamic_library.cpp
Normal file
|
|
@ -0,0 +1,96 @@
|
|||
// SPDX-FileCopyrightText: 2019 Dolphin Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#include "dynamic_library.hpp"
|
||||
|
||||
#include <fmt/format.h>
|
||||
|
||||
#include <string>
|
||||
#include <utility>
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <windows.h>
|
||||
#else
|
||||
#include <dlfcn.h>
|
||||
#endif
|
||||
|
||||
namespace Common {
|
||||
DynamicLibrary::DynamicLibrary() = default;
|
||||
DynamicLibrary::DynamicLibrary(const char* filename) { void(open(filename)); }
|
||||
DynamicLibrary::DynamicLibrary(void* handle_) : handle{handle_} {}
|
||||
DynamicLibrary::DynamicLibrary(DynamicLibrary&& rhs) noexcept : handle{std::exchange(rhs.handle, nullptr)} {}
|
||||
|
||||
DynamicLibrary& DynamicLibrary::operator=(DynamicLibrary&& rhs) noexcept {
|
||||
close();
|
||||
handle = std::exchange(rhs.handle, nullptr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
DynamicLibrary::~DynamicLibrary() { close(); }
|
||||
|
||||
std::string DynamicLibrary::getUnprefixedFilename(const char* filename) {
|
||||
#if defined(_WIN32)
|
||||
return std::string(filename) + ".dll";
|
||||
#elif defined(__APPLE__)
|
||||
return std::string(filename) + ".dylib";
|
||||
#else
|
||||
return std::string(filename) + ".so";
|
||||
#endif
|
||||
}
|
||||
|
||||
std::string DynamicLibrary::getVersionedFilename(const char* libname, int major, int minor) {
|
||||
#if defined(_WIN32)
|
||||
if (major >= 0 && minor >= 0)
|
||||
return fmt::format("{}-{}-{}.dll", libname, major, minor);
|
||||
else if (major >= 0)
|
||||
return fmt::format("{}-{}.dll", libname, major);
|
||||
else
|
||||
return fmt::format("{}.dll", libname);
|
||||
#elif defined(__APPLE__)
|
||||
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
|
||||
if (major >= 0 && minor >= 0)
|
||||
return fmt::format("{}{}.{}.{}.dylib", prefix, libname, major, minor);
|
||||
else if (major >= 0)
|
||||
return fmt::format("{}{}.{}.dylib", prefix, libname, major);
|
||||
else
|
||||
return fmt::format("{}{}.dylib", prefix, libname);
|
||||
#else
|
||||
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
|
||||
if (major >= 0 && minor >= 0)
|
||||
return fmt::format("{}{}.so.{}.{}", prefix, libname, major, minor);
|
||||
else if (major >= 0)
|
||||
return fmt::format("{}{}.so.{}", prefix, libname, major);
|
||||
else
|
||||
return fmt::format("{}{}.so", prefix, libname);
|
||||
#endif
|
||||
}
|
||||
|
||||
bool DynamicLibrary::open(const char* filename) {
|
||||
#ifdef _WIN32
|
||||
handle = reinterpret_cast<void*>(LoadLibraryA(filename));
|
||||
#else
|
||||
handle = dlopen(filename, RTLD_NOW);
|
||||
#endif
|
||||
return handle != nullptr;
|
||||
}
|
||||
|
||||
void DynamicLibrary::close() {
|
||||
if (!isOpen()) return;
|
||||
|
||||
#ifdef _WIN32
|
||||
FreeLibrary(reinterpret_cast<HMODULE>(handle));
|
||||
#else
|
||||
dlclose(handle);
|
||||
#endif
|
||||
handle = nullptr;
|
||||
}
|
||||
|
||||
void* DynamicLibrary::getSymbolAddress(const char* name) const {
|
||||
#ifdef _WIN32
|
||||
return reinterpret_cast<void*>(GetProcAddress(reinterpret_cast<HMODULE>(handle), name));
|
||||
#else
|
||||
return reinterpret_cast<void*>(dlsym(handle, name));
|
||||
#endif
|
||||
}
|
||||
|
||||
} // namespace Common
|
||||
|
|
@ -19,7 +19,7 @@ __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 1;
|
|||
#endif
|
||||
|
||||
Emulator::Emulator()
|
||||
: config(getConfigPath()), kernel(cpu, memory, gpu, config), cpu(memory, kernel, *this), gpu(memory, config), memory(cpu.getTicksRef(), config),
|
||||
: config(getConfigPath()), kernel(cpu, memory, gpu, config), cpu(memory, kernel, *this), gpu(memory, config), memory(config),
|
||||
cheats(memory, kernel.getServiceManager().getHID()), audioDevice(config.audioDeviceConfig), lua(*this), running(false)
|
||||
#ifdef PANDA3DS_ENABLE_HTTP_SERVER
|
||||
,
|
||||
|
|
|
|||
2
third_party/boost
vendored
2
third_party/boost
vendored
|
|
@ -1 +1 @@
|
|||
Subproject commit 4532ae239c4d0b88a547d28e19348c3b05bfd4d6
|
||||
Subproject commit ecfc47f58e73fa353456068a7245dc933ebe4472
|
||||
674
third_party/host_memory/LICENSE.txt
vendored
Normal file
674
third_party/host_memory/LICENSE.txt
vendored
Normal file
|
|
@ -0,0 +1,674 @@
|
|||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
||||
software and other kinds of works.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users. We, the Free Software Foundation, use the
|
||||
GNU General Public License for most of our software; it applies also to
|
||||
any other work released this way by its authors. You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to prevent others from denying you
|
||||
these rights or asking you to surrender the rights. Therefore, you have
|
||||
certain responsibilities if you distribute copies of the software, or if
|
||||
you modify it: responsibilities to respect the freedom of others.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must pass on to the recipients the same
|
||||
freedoms that you received. You must make sure that they, too, receive
|
||||
or can get the source code. And you must show them these terms so they
|
||||
know their rights.
|
||||
|
||||
Developers that use the GNU GPL protect your rights with two steps:
|
||||
(1) assert copyright on the software, and (2) offer you this License
|
||||
giving you legal permission to copy, distribute and/or modify it.
|
||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
|
||||
authors' sake, the GPL requires that modified versions be marked as
|
||||
changed, so that their problems will not be attributed erroneously to
|
||||
authors of previous versions.
|
||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
can do so. This is fundamentally incompatible with the aim of
|
||||
protecting users' freedom to change the software. The systematic
|
||||
pattern of such abuse occurs in the area of products for individuals to
|
||||
use, which is precisely where it is most unacceptable. Therefore, we
|
||||
have designed this version of the GPL to prohibit the practice for those
|
||||
products. If such problems arise substantially in other domains, we
|
||||
stand ready to extend this provision to those domains in future versions
|
||||
of the GPL, as needed to protect the freedom of users.
|
||||
|
||||
Finally, every program is threatened constantly by software patents.
|
||||
States should not allow patents to restrict development and use of
|
||||
software on general-purpose computers, but in those that do, we wish to
|
||||
avoid the special danger that patents applied to a free program could
|
||||
make it effectively proprietary. To prevent this, the GPL assures that
|
||||
patents cannot be used to render the program non-free.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
||||
753
third_party/host_memory/host_memory.cpp
vendored
Normal file
753
third_party/host_memory/host_memory.cpp
vendored
Normal file
|
|
@ -0,0 +1,753 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
// Copyright 2008 Dolphin Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#if defined(_M_ARM64) || defined(__aarch64__)
|
||||
#define ARCHITECTURE_arm64
|
||||
#endif
|
||||
|
||||
#ifdef _WIN32
|
||||
|
||||
#include <windows.h>
|
||||
|
||||
#include <boost/icl/separate_interval_set.hpp>
|
||||
#include <iterator>
|
||||
#include <unordered_map>
|
||||
|
||||
#include "dynamic_library.hpp"
|
||||
|
||||
#elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
|
||||
|
||||
#ifndef _GNU_SOURCE
|
||||
#define _GNU_SOURCE
|
||||
#endif
|
||||
#include <fcntl.h>
|
||||
#include <host_memory/scope_exit.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/random.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <boost/icl/interval_set.hpp>
|
||||
|
||||
#ifndef MAP_NORESERVE
|
||||
#define MAP_NORESERVE 0
|
||||
#endif
|
||||
|
||||
// On Android, include ioctl for shared memory ioctls, dlfcn for loading libandroid and linux/ashmem for ashmem defines
|
||||
#ifdef __ANDROID__
|
||||
#include <dlfcn.h>
|
||||
#include <linux/ashmem.h>
|
||||
#include <sys/ioctl.h>
|
||||
#endif
|
||||
|
||||
#endif // ^^^ Linux ^^^
|
||||
|
||||
#include <host_memory/free_region_manager.h>
|
||||
#include <host_memory/host_memory.h>
|
||||
|
||||
#include <cstring>
|
||||
#include <memory>
|
||||
#include <mutex>
|
||||
#include <random>
|
||||
|
||||
#include "align.hpp"
|
||||
|
||||
#define ASSERT(...)
|
||||
#define UNIMPLEMENTED_MSG(...)
|
||||
#define ASSERT_MSG(...)
|
||||
|
||||
namespace Common {
|
||||
constexpr size_t PageAlignment = 0x1000;
|
||||
constexpr size_t HugePageSize = 0x200000;
|
||||
|
||||
#if defined(_WIN32) && defined(PANDA3DS_HARDWARE_FASTMEM)
|
||||
|
||||
// Manually imported for MinGW compatibility
|
||||
#ifndef MEM_RESERVE_PLACEHOLDER
|
||||
#define MEM_RESERVE_PLACEHOLDER 0x00040000
|
||||
#endif
|
||||
#ifndef MEM_REPLACE_PLACEHOLDER
|
||||
#define MEM_REPLACE_PLACEHOLDER 0x00004000
|
||||
#endif
|
||||
#ifndef MEM_COALESCE_PLACEHOLDERS
|
||||
#define MEM_COALESCE_PLACEHOLDERS 0x00000001
|
||||
#endif
|
||||
#ifndef MEM_PRESERVE_PLACEHOLDER
|
||||
#define MEM_PRESERVE_PLACEHOLDER 0x00000002
|
||||
#endif
|
||||
|
||||
using PFN_CreateFileMapping2 = _Ret_maybenull_ HANDLE(WINAPI*)(
|
||||
_In_ HANDLE File, _In_opt_ SECURITY_ATTRIBUTES* SecurityAttributes, _In_ ULONG DesiredAccess, _In_ ULONG PageProtection,
|
||||
_In_ ULONG AllocationAttributes, _In_ ULONG64 MaximumSize, _In_opt_ PCWSTR Name,
|
||||
_Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters, _In_ ULONG ParameterCount
|
||||
);
|
||||
|
||||
using PFN_VirtualAlloc2 = _Ret_maybenull_ PVOID(WINAPI*)(
|
||||
_In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress, _In_ SIZE_T Size, _In_ ULONG AllocationType, _In_ ULONG PageProtection,
|
||||
_Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters, _In_ ULONG ParameterCount
|
||||
);
|
||||
|
||||
using PFN_MapViewOfFile3 = _Ret_maybenull_ PVOID(WINAPI*)(
|
||||
_In_ HANDLE FileMapping, _In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress, _In_ ULONG64 Offset, _In_ SIZE_T ViewSize,
|
||||
_In_ ULONG AllocationType, _In_ ULONG PageProtection, _Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
|
||||
_In_ ULONG ParameterCount
|
||||
);
|
||||
|
||||
using PFN_UnmapViewOfFile2 = BOOL(WINAPI*)(_In_ HANDLE Process, _In_ PVOID BaseAddress, _In_ ULONG UnmapFlags);
|
||||
|
||||
template <typename T>
|
||||
static void GetFuncAddress(Common::DynamicLibrary& dll, const char* name, T& pfn) {
|
||||
if (!dll.getSymbol(name, &pfn)) {
|
||||
Helpers::warn("Failed to load %s", name);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
}
|
||||
|
||||
class HostMemory::Impl {
|
||||
public:
|
||||
explicit Impl(size_t backing_size_, size_t virtual_size_)
|
||||
: backing_size{backing_size_}, virtual_size{virtual_size_}, process{GetCurrentProcess()}, kernelbase_dll("Kernelbase") {
|
||||
if (!kernelbase_dll.isOpen()) {
|
||||
Helpers::warn("Failed to load Kernelbase.dll");
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
GetFuncAddress(kernelbase_dll, "CreateFileMapping2", pfn_CreateFileMapping2);
|
||||
GetFuncAddress(kernelbase_dll, "VirtualAlloc2", pfn_VirtualAlloc2);
|
||||
GetFuncAddress(kernelbase_dll, "MapViewOfFile3", pfn_MapViewOfFile3);
|
||||
GetFuncAddress(kernelbase_dll, "UnmapViewOfFile2", pfn_UnmapViewOfFile2);
|
||||
|
||||
// Allocate backing file map
|
||||
backing_handle = pfn_CreateFileMapping2(
|
||||
INVALID_HANDLE_VALUE, nullptr, FILE_MAP_WRITE | FILE_MAP_READ, PAGE_READWRITE, SEC_COMMIT, backing_size, nullptr, nullptr, 0
|
||||
);
|
||||
if (!backing_handle) {
|
||||
Helpers::warn("Failed to allocate %X MiB of backing memory", backing_size >> 20);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
// Allocate a virtual memory for the backing file map as placeholder
|
||||
backing_base =
|
||||
static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, backing_size, MEM_RESERVE | MEM_RESERVE_PLACEHOLDER, PAGE_NOACCESS, nullptr, 0));
|
||||
if (!backing_base) {
|
||||
Release();
|
||||
Helpers::warn("Failed to reserve %X MiB of virtual memory", backing_size >> 20);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
// Map backing placeholder
|
||||
void* const ret =
|
||||
pfn_MapViewOfFile3(backing_handle, process, backing_base, 0, backing_size, MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0);
|
||||
if (ret != backing_base) {
|
||||
Release();
|
||||
Helpers::warn("Failed to map %X MiB of virtual memory", backing_size >> 20);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
// Allocate virtual address placeholder
|
||||
virtual_base =
|
||||
static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, virtual_size, MEM_RESERVE | MEM_RESERVE_PLACEHOLDER, PAGE_NOACCESS, nullptr, 0));
|
||||
if (!virtual_base) {
|
||||
Release();
|
||||
Helpers::warn("Failed to reserve %X GiB of virtual memory", virtual_size >> 30);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
}
|
||||
|
||||
~Impl() { Release(); }
|
||||
|
||||
void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms) {
|
||||
std::unique_lock lock{placeholder_mutex};
|
||||
if (!IsNiechePlaceholder(virtual_offset, length)) {
|
||||
Split(virtual_offset, length);
|
||||
}
|
||||
ASSERT(placeholders.find({virtual_offset, virtual_offset + length}) == placeholders.end());
|
||||
TrackPlaceholder(virtual_offset, host_offset, length);
|
||||
|
||||
MapView(virtual_offset, host_offset, length);
|
||||
}
|
||||
|
||||
void Unmap(size_t virtual_offset, size_t length) {
|
||||
std::scoped_lock lock{placeholder_mutex};
|
||||
|
||||
// Unmap until there are no more placeholders
|
||||
while (UnmapOnePlaceholder(virtual_offset, length)) {
|
||||
}
|
||||
}
|
||||
|
||||
void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {
|
||||
DWORD new_flags{};
|
||||
if (read && write) {
|
||||
new_flags = PAGE_READWRITE;
|
||||
} else if (read && !write) {
|
||||
new_flags = PAGE_READONLY;
|
||||
} else if (!read && !write) {
|
||||
new_flags = PAGE_NOACCESS;
|
||||
} else {
|
||||
UNIMPLEMENTED_MSG("Protection flag combination read={} write={}", read, write);
|
||||
}
|
||||
const size_t virtual_end = virtual_offset + length;
|
||||
|
||||
std::scoped_lock lock{placeholder_mutex};
|
||||
auto [it, end] = placeholders.equal_range({virtual_offset, virtual_end});
|
||||
while (it != end) {
|
||||
const size_t offset = std::max(it->lower(), virtual_offset);
|
||||
const size_t protect_length = std::min(it->upper(), virtual_end) - offset;
|
||||
DWORD old_flags{};
|
||||
if (!VirtualProtect(virtual_base + offset, protect_length, new_flags, &old_flags)) {
|
||||
Helpers::warn("Failed to change virtual memory protect rules");
|
||||
}
|
||||
++it;
|
||||
}
|
||||
}
|
||||
|
||||
bool ClearBackingRegion(size_t physical_offset, size_t length) {
|
||||
// TODO: This does not seem to be possible on Windows.
|
||||
return false;
|
||||
}
|
||||
|
||||
void EnableDirectMappedAddress() {
|
||||
// TODO
|
||||
Helpers::panic("Unimplemented: EnableDirectMappedAddress on Windows");
|
||||
}
|
||||
|
||||
const size_t backing_size; ///< Size of the backing memory in bytes
|
||||
const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
|
||||
|
||||
u8* backing_base{};
|
||||
u8* virtual_base{};
|
||||
|
||||
private:
|
||||
/// Release all resources in the object
|
||||
void Release() {
|
||||
if (!placeholders.empty()) {
|
||||
for (const auto& placeholder : placeholders) {
|
||||
if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder.lower(), MEM_PRESERVE_PLACEHOLDER)) {
|
||||
Helpers::warn("Failed to unmap virtual memory placeholder");
|
||||
}
|
||||
}
|
||||
Coalesce(0, virtual_size);
|
||||
}
|
||||
if (virtual_base) {
|
||||
if (!VirtualFree(virtual_base, 0, MEM_RELEASE)) {
|
||||
Helpers::warn("Failed to free virtual memory");
|
||||
}
|
||||
}
|
||||
if (backing_base) {
|
||||
if (!pfn_UnmapViewOfFile2(process, backing_base, MEM_PRESERVE_PLACEHOLDER)) {
|
||||
Helpers::warn("Failed to unmap backing memory placeholder");
|
||||
}
|
||||
if (!VirtualFreeEx(process, backing_base, 0, MEM_RELEASE)) {
|
||||
Helpers::warn("Failed to free backing memory");
|
||||
}
|
||||
}
|
||||
if (!CloseHandle(backing_handle)) {
|
||||
Helpers::warn("Failed to free backing memory file handle");
|
||||
}
|
||||
}
|
||||
|
||||
/// Unmap one placeholder in the given range (partial unmaps are supported)
|
||||
/// Return true when there are no more placeholders to unmap
|
||||
bool UnmapOnePlaceholder(size_t virtual_offset, size_t length) {
|
||||
const auto it = placeholders.find({virtual_offset, virtual_offset + length});
|
||||
const auto begin = placeholders.begin();
|
||||
const auto end = placeholders.end();
|
||||
if (it == end) {
|
||||
return false;
|
||||
}
|
||||
const size_t placeholder_begin = it->lower();
|
||||
const size_t placeholder_end = it->upper();
|
||||
const size_t unmap_begin = std::max(virtual_offset, placeholder_begin);
|
||||
const size_t unmap_end = std::min(virtual_offset + length, placeholder_end);
|
||||
ASSERT(unmap_begin >= placeholder_begin && unmap_begin < placeholder_end);
|
||||
ASSERT(unmap_end <= placeholder_end && unmap_end > placeholder_begin);
|
||||
|
||||
const auto host_pointer_it = placeholder_host_pointers.find(placeholder_begin);
|
||||
ASSERT(host_pointer_it != placeholder_host_pointers.end());
|
||||
const size_t host_offset = host_pointer_it->second;
|
||||
|
||||
const bool split_left = unmap_begin > placeholder_begin;
|
||||
const bool split_right = unmap_end < placeholder_end;
|
||||
|
||||
if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder_begin, MEM_PRESERVE_PLACEHOLDER)) {
|
||||
Helpers::warn("Failed to unmap placeholder");
|
||||
}
|
||||
// If we have to remap memory regions due to partial unmaps, we are in a data race as
|
||||
// Windows doesn't support remapping memory without unmapping first. Avoid adding any extra
|
||||
// logic within the panic region described below.
|
||||
|
||||
// Panic region, we are in a data race right now
|
||||
if (split_left || split_right) {
|
||||
Split(unmap_begin, unmap_end - unmap_begin);
|
||||
}
|
||||
if (split_left) {
|
||||
MapView(placeholder_begin, host_offset, unmap_begin - placeholder_begin);
|
||||
}
|
||||
if (split_right) {
|
||||
MapView(unmap_end, host_offset + unmap_end - placeholder_begin, placeholder_end - unmap_end);
|
||||
}
|
||||
// End panic region
|
||||
|
||||
size_t coalesce_begin = unmap_begin;
|
||||
if (!split_left) {
|
||||
// Try to coalesce pages to the left
|
||||
coalesce_begin = it == begin ? 0 : std::prev(it)->upper();
|
||||
if (coalesce_begin != placeholder_begin) {
|
||||
Coalesce(coalesce_begin, unmap_end - coalesce_begin);
|
||||
}
|
||||
}
|
||||
if (!split_right) {
|
||||
// Try to coalesce pages to the right
|
||||
const auto next = std::next(it);
|
||||
const size_t next_begin = next == end ? virtual_size : next->lower();
|
||||
if (placeholder_end != next_begin) {
|
||||
// We can coalesce to the right
|
||||
Coalesce(coalesce_begin, next_begin - coalesce_begin);
|
||||
}
|
||||
}
|
||||
// Remove and reinsert placeholder trackers
|
||||
UntrackPlaceholder(it);
|
||||
if (split_left) {
|
||||
TrackPlaceholder(placeholder_begin, host_offset, unmap_begin - placeholder_begin);
|
||||
}
|
||||
if (split_right) {
|
||||
TrackPlaceholder(unmap_end, host_offset + unmap_end - placeholder_begin, placeholder_end - unmap_end);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
void MapView(size_t virtual_offset, size_t host_offset, size_t length) {
|
||||
if (!pfn_MapViewOfFile3(
|
||||
backing_handle, process, virtual_base + virtual_offset, host_offset, length, MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0
|
||||
)) {
|
||||
Helpers::warn("Failed to map placeholder");
|
||||
}
|
||||
}
|
||||
|
||||
void Split(size_t virtual_offset, size_t length) {
|
||||
if (!VirtualFreeEx(process, reinterpret_cast<LPVOID>(virtual_base + virtual_offset), length, MEM_RELEASE | MEM_PRESERVE_PLACEHOLDER)) {
|
||||
Helpers::warn("Failed to split placeholder");
|
||||
}
|
||||
}
|
||||
|
||||
void Coalesce(size_t virtual_offset, size_t length) {
|
||||
if (!VirtualFreeEx(process, reinterpret_cast<LPVOID>(virtual_base + virtual_offset), length, MEM_RELEASE | MEM_COALESCE_PLACEHOLDERS)) {
|
||||
Helpers::warn("Failed to coalesce placeholders");
|
||||
}
|
||||
}
|
||||
|
||||
void TrackPlaceholder(size_t virtual_offset, size_t host_offset, size_t length) {
|
||||
placeholders.insert({virtual_offset, virtual_offset + length});
|
||||
placeholder_host_pointers.emplace(virtual_offset, host_offset);
|
||||
}
|
||||
|
||||
void UntrackPlaceholder(boost::icl::separate_interval_set<size_t>::iterator it) {
|
||||
placeholder_host_pointers.erase(it->lower());
|
||||
placeholders.erase(it);
|
||||
}
|
||||
|
||||
/// Return true when a given memory region is a "nieche" and the placeholders don't have to be
|
||||
/// split.
|
||||
bool IsNiechePlaceholder(size_t virtual_offset, size_t length) const {
|
||||
const auto it = placeholders.upper_bound({virtual_offset, virtual_offset + length});
|
||||
if (it != placeholders.end() && it->lower() == virtual_offset + length) {
|
||||
return it == placeholders.begin() ? virtual_offset == 0 : std::prev(it)->upper() == virtual_offset;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
HANDLE process{}; ///< Current process handle
|
||||
HANDLE backing_handle{}; ///< File based backing memory
|
||||
|
||||
DynamicLibrary kernelbase_dll;
|
||||
PFN_CreateFileMapping2 pfn_CreateFileMapping2{};
|
||||
PFN_VirtualAlloc2 pfn_VirtualAlloc2{};
|
||||
PFN_MapViewOfFile3 pfn_MapViewOfFile3{};
|
||||
PFN_UnmapViewOfFile2 pfn_UnmapViewOfFile2{};
|
||||
|
||||
std::mutex placeholder_mutex; ///< Mutex for placeholders
|
||||
boost::icl::separate_interval_set<size_t> placeholders; ///< Mapped placeholders
|
||||
std::unordered_map<size_t, size_t> placeholder_host_pointers; ///< Placeholder backing offset
|
||||
};
|
||||
|
||||
#elif (defined(__linux__) || defined(__FreeBSD__)) && defined(PANDA3DS_HARDWARE_FASTMEM) // ^^^ Windows ^^^ vvv Linux vvv
|
||||
|
||||
#ifdef __ANDROID__
|
||||
#define ASHMEM_DEVICE "/dev/ashmem"
|
||||
// Android shared memory creation code from Dolphin
|
||||
static int AshmemCreateFileMapping(const char* name, size_t size) {
|
||||
// ASharedMemory path - works on API >= 26 and falls through on API < 26:
|
||||
|
||||
// We can't call ASharedMemory_create the normal way without increasing the
|
||||
// minimum version requirement to API 26, so we use dlopen/dlsym instead
|
||||
static void* libandroid = dlopen("libandroid.so", RTLD_LAZY | RTLD_LOCAL);
|
||||
static auto sharedMemoryCreate = reinterpret_cast<int (*)(const char*, size_t)>(dlsym(libandroid, "ASharedMemory_create"));
|
||||
if (sharedMemoryCreate) {
|
||||
return sharedMemoryCreate(name, size);
|
||||
}
|
||||
|
||||
// /dev/ashmem path - works on API < 29:
|
||||
|
||||
int fd, ret;
|
||||
fd = open(ASHMEM_DEVICE, O_RDWR);
|
||||
if (fd < 0) return fd;
|
||||
|
||||
// We don't really care if we can't set the name, it is optional
|
||||
ioctl(fd, ASHMEM_SET_NAME, name);
|
||||
|
||||
ret = ioctl(fd, ASHMEM_SET_SIZE, size);
|
||||
if (ret < 0) {
|
||||
close(fd);
|
||||
Helpers::warn("Ashmem allocation failed");
|
||||
return ret;
|
||||
}
|
||||
return fd;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef ARCHITECTURE_arm64
|
||||
static void* ChooseVirtualBase(size_t virtual_size) {
|
||||
constexpr uintptr_t Map39BitSize = (1ULL << 39);
|
||||
constexpr uintptr_t Map36BitSize = (1ULL << 36);
|
||||
|
||||
// This is not a cryptographic application, we just want something random.
|
||||
std::mt19937_64 rng;
|
||||
|
||||
// We want to ensure we are allocating at an address aligned to the L2 block size.
|
||||
// For Qualcomm devices, we must also allocate memory above 36 bits.
|
||||
const size_t lower = Map36BitSize / HugePageSize;
|
||||
const size_t upper = (Map39BitSize - virtual_size) / HugePageSize;
|
||||
const size_t range = upper - lower;
|
||||
|
||||
// Try up to 64 times to allocate memory at random addresses in the range.
|
||||
for (int i = 0; i < 64; i++) {
|
||||
// Calculate a possible location.
|
||||
uintptr_t hint_address = ((rng() % range) + lower) * HugePageSize;
|
||||
|
||||
// Try to map.
|
||||
// Note: we may be able to take advantage of MAP_FIXED_NOREPLACE here.
|
||||
void* map_pointer =
|
||||
mmap(reinterpret_cast<void*>(hint_address), virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
|
||||
|
||||
// If we successfully mapped, we're done.
|
||||
if (reinterpret_cast<uintptr_t>(map_pointer) == hint_address) {
|
||||
return map_pointer;
|
||||
}
|
||||
|
||||
// Unmap if necessary, and try again.
|
||||
if (map_pointer != MAP_FAILED) {
|
||||
munmap(map_pointer, virtual_size);
|
||||
}
|
||||
}
|
||||
|
||||
return MAP_FAILED;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static void* ChooseVirtualBase(size_t virtual_size) {
|
||||
#if defined(__FreeBSD__)
|
||||
void* virtual_base =
|
||||
mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_ALIGNED_SUPER, -1, 0);
|
||||
|
||||
if (virtual_base != MAP_FAILED) {
|
||||
return virtual_base;
|
||||
}
|
||||
#endif
|
||||
|
||||
return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
class HostMemory::Impl {
|
||||
public:
|
||||
explicit Impl(size_t backing_size_, size_t virtual_size_) : backing_size{backing_size_}, virtual_size{virtual_size_} {
|
||||
bool good = false;
|
||||
SCOPE_EXIT {
|
||||
if (!good) {
|
||||
Release();
|
||||
}
|
||||
};
|
||||
|
||||
long page_size = sysconf(_SC_PAGESIZE);
|
||||
if (page_size != 0x1000) {
|
||||
Helpers::warn("page size {:#x} is incompatible with 4K paging", page_size);
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
// Backing memory initialization
|
||||
#if defined(__FreeBSD__) && __FreeBSD__ < 13
|
||||
// XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
|
||||
fd = shm_open(SHM_ANON, O_RDWR, 0600);
|
||||
#elif defined(__ANDROID__)
|
||||
fd = AshmemCreateFileMapping("HostMemory", 0);
|
||||
#else
|
||||
fd = memfd_create("HostMemory", 0);
|
||||
#endif
|
||||
|
||||
if (fd < 0) {
|
||||
Helpers::warn("memfd_create failed: {}", strerror(errno));
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
// Defined to extend the file with zeros
|
||||
int ret = ftruncate(fd, backing_size);
|
||||
if (ret != 0) {
|
||||
Helpers::warn("ftruncate failed with {}, are you out-of-memory?", strerror(errno));
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
backing_base = static_cast<u8*>(mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
|
||||
|
||||
if (backing_base == MAP_FAILED) {
|
||||
Helpers::warn("mmap failed: {}", strerror(errno));
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
// Virtual memory initialization
|
||||
virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size));
|
||||
if (virtual_base == MAP_FAILED) {
|
||||
Helpers::warn("mmap failed: {}", strerror(errno));
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
#if defined(__linux__)
|
||||
madvise(virtual_base, virtual_size, MADV_HUGEPAGE);
|
||||
#endif
|
||||
|
||||
free_manager.SetAddressSpace(virtual_base, virtual_size);
|
||||
good = true;
|
||||
}
|
||||
|
||||
~Impl() { Release(); }
|
||||
|
||||
void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms) {
|
||||
// Intersect the range with our address space.
|
||||
AdjustMap(&virtual_offset, &length);
|
||||
|
||||
// We are removing a placeholder.
|
||||
free_manager.AllocateBlock(virtual_base + virtual_offset, length);
|
||||
|
||||
// Deduce mapping protection flags.
|
||||
int flags = PROT_NONE;
|
||||
if (True(perms & MemoryPermission::Read)) {
|
||||
flags |= PROT_READ;
|
||||
}
|
||||
if (True(perms & MemoryPermission::Write)) {
|
||||
flags |= PROT_WRITE;
|
||||
}
|
||||
#ifdef ARCHITECTURE_arm64
|
||||
if (True(perms & MemoryPermission::Execute)) {
|
||||
flags |= PROT_EXEC;
|
||||
}
|
||||
#endif
|
||||
|
||||
void* ret = mmap(virtual_base + virtual_offset, length, flags, MAP_SHARED | MAP_FIXED, fd, host_offset);
|
||||
ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
|
||||
}
|
||||
|
||||
void Unmap(size_t virtual_offset, size_t length) {
|
||||
// The method name is wrong. We're still talking about the virtual range.
|
||||
// We don't want to unmap, we want to reserve this memory.
|
||||
|
||||
// Intersect the range with our address space.
|
||||
AdjustMap(&virtual_offset, &length);
|
||||
|
||||
// Merge with any adjacent placeholder mappings.
|
||||
auto [merged_pointer, merged_size] = free_manager.FreeBlock(virtual_base + virtual_offset, length);
|
||||
|
||||
void* ret = mmap(merged_pointer, merged_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
|
||||
ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
|
||||
}
|
||||
|
||||
void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {
|
||||
// Intersect the range with our address space.
|
||||
AdjustMap(&virtual_offset, &length);
|
||||
|
||||
int flags = PROT_NONE;
|
||||
if (read) {
|
||||
flags |= PROT_READ;
|
||||
}
|
||||
if (write) {
|
||||
flags |= PROT_WRITE;
|
||||
}
|
||||
#ifdef HAS_NCE
|
||||
if (execute) {
|
||||
flags |= PROT_EXEC;
|
||||
}
|
||||
#endif
|
||||
int ret = mprotect(virtual_base + virtual_offset, length, flags);
|
||||
ASSERT_MSG(ret == 0, "mprotect failed: {}", strerror(errno));
|
||||
}
|
||||
|
||||
bool ClearBackingRegion(size_t physical_offset, size_t length) {
|
||||
#ifdef __linux__
|
||||
// Set MADV_REMOVE on backing map to destroy it instantly.
|
||||
// This also deletes the area from the backing file.
|
||||
int ret = madvise(backing_base + physical_offset, length, MADV_REMOVE);
|
||||
ASSERT_MSG(ret == 0, "madvise failed: {}", strerror(errno));
|
||||
|
||||
return true;
|
||||
#else
|
||||
return false;
|
||||
#endif
|
||||
}
|
||||
|
||||
void EnableDirectMappedAddress() { virtual_base = nullptr; }
|
||||
|
||||
const size_t backing_size; ///< Size of the backing memory in bytes
|
||||
const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
|
||||
|
||||
u8* backing_base{reinterpret_cast<u8*>(MAP_FAILED)};
|
||||
u8* virtual_base{reinterpret_cast<u8*>(MAP_FAILED)};
|
||||
u8* virtual_map_base{reinterpret_cast<u8*>(MAP_FAILED)};
|
||||
|
||||
private:
|
||||
/// Release all resources in the object
|
||||
void Release() {
|
||||
if (virtual_map_base != MAP_FAILED) {
|
||||
int ret = munmap(virtual_map_base, virtual_size);
|
||||
ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
|
||||
}
|
||||
|
||||
if (backing_base != MAP_FAILED) {
|
||||
int ret = munmap(backing_base, backing_size);
|
||||
ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
|
||||
}
|
||||
|
||||
if (fd != -1) {
|
||||
int ret = close(fd);
|
||||
ASSERT_MSG(ret == 0, "close failed: {}", strerror(errno));
|
||||
}
|
||||
}
|
||||
|
||||
void AdjustMap(size_t* virtual_offset, size_t* length) {
|
||||
if (virtual_base != nullptr) {
|
||||
return;
|
||||
}
|
||||
|
||||
// If we are direct mapped, we want to make sure we are operating on a region
|
||||
// that is in range of our virtual mapping.
|
||||
size_t intended_start = *virtual_offset;
|
||||
size_t intended_end = intended_start + *length;
|
||||
size_t address_space_start = reinterpret_cast<size_t>(virtual_map_base);
|
||||
size_t address_space_end = address_space_start + virtual_size;
|
||||
|
||||
if (address_space_start > intended_end || intended_start > address_space_end) {
|
||||
*virtual_offset = 0;
|
||||
*length = 0;
|
||||
} else {
|
||||
*virtual_offset = std::max(intended_start, address_space_start);
|
||||
*length = std::min(intended_end, address_space_end) - *virtual_offset;
|
||||
}
|
||||
}
|
||||
|
||||
int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
|
||||
FreeRegionManager free_manager{};
|
||||
};
|
||||
|
||||
#else // ^^^ Linux ^^^ vvv Generic vvv
|
||||
|
||||
class HostMemory::Impl {
|
||||
public:
|
||||
explicit Impl(size_t /*backing_size */, size_t /* virtual_size */) {
|
||||
// This is just a place holder.
|
||||
// Please implement fastmem in a proper way on your platform.
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perm) {}
|
||||
void Unmap(size_t virtual_offset, size_t length) {}
|
||||
void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {}
|
||||
bool ClearBackingRegion(size_t physical_offset, size_t length) { return false; }
|
||||
void EnableDirectMappedAddress() {}
|
||||
|
||||
u8* backing_base{nullptr};
|
||||
u8* virtual_base{nullptr};
|
||||
};
|
||||
|
||||
#endif // ^^^ Generic ^^^
|
||||
|
||||
HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_, bool enableFastmem) : backing_size(backing_size_), virtual_size(virtual_size_) {
|
||||
try {
|
||||
// Fastmem is disabled, just throw bad alloc and use the VirtualBuffer fallback.
|
||||
if (!enableFastmem) {
|
||||
throw std::bad_alloc{};
|
||||
}
|
||||
|
||||
// Try to allocate a fastmem arena.
|
||||
// The implementation will fail with std::bad_alloc on errors.
|
||||
impl = std::make_unique<HostMemory::Impl>(
|
||||
Common::alignUp(backing_size, PageAlignment), Common::alignUp(virtual_size, PageAlignment) + HugePageSize
|
||||
);
|
||||
backing_base = impl->backing_base;
|
||||
virtual_base = impl->virtual_base;
|
||||
|
||||
if (virtual_base) {
|
||||
// Ensure the virtual base is aligned to the L2 block size.
|
||||
virtual_base = reinterpret_cast<u8*>(Common::alignUp(reinterpret_cast<uintptr_t>(virtual_base), HugePageSize));
|
||||
virtual_base_offset = virtual_base - impl->virtual_base;
|
||||
}
|
||||
|
||||
} catch (const std::bad_alloc&) {
|
||||
if (enableFastmem) {
|
||||
Helpers::warn("Fastmem unavailable, falling back to VirtualBuffer for memory allocation");
|
||||
}
|
||||
|
||||
fallback_buffer = std::make_unique<Common::VirtualBuffer<u8>>(backing_size);
|
||||
backing_base = fallback_buffer->data();
|
||||
virtual_base = nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
HostMemory::~HostMemory() = default;
|
||||
HostMemory::HostMemory(HostMemory&&) noexcept = default;
|
||||
HostMemory& HostMemory::operator=(HostMemory&&) noexcept = default;
|
||||
|
||||
void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms, bool separate_heap) {
|
||||
ASSERT(virtual_offset % PageAlignment == 0);
|
||||
ASSERT(host_offset % PageAlignment == 0);
|
||||
ASSERT(length % PageAlignment == 0);
|
||||
ASSERT(virtual_offset + length <= virtual_size);
|
||||
ASSERT(host_offset + length <= backing_size);
|
||||
if (length == 0 || !virtual_base || !impl) {
|
||||
return;
|
||||
}
|
||||
impl->Map(virtual_offset + virtual_base_offset, host_offset, length, perms);
|
||||
}
|
||||
|
||||
void HostMemory::Unmap(size_t virtual_offset, size_t length, bool separate_heap) {
|
||||
ASSERT(virtual_offset % PageAlignment == 0);
|
||||
ASSERT(length % PageAlignment == 0);
|
||||
ASSERT(virtual_offset + length <= virtual_size);
|
||||
if (length == 0 || !virtual_base || !impl) {
|
||||
return;
|
||||
}
|
||||
impl->Unmap(virtual_offset + virtual_base_offset, length);
|
||||
}
|
||||
|
||||
void HostMemory::Protect(size_t virtual_offset, size_t length, MemoryPermission perm) {
|
||||
ASSERT(virtual_offset % PageAlignment == 0);
|
||||
ASSERT(length % PageAlignment == 0);
|
||||
ASSERT(virtual_offset + length <= virtual_size);
|
||||
if (length == 0 || !virtual_base || !impl) {
|
||||
return;
|
||||
}
|
||||
const bool read = True(perm & MemoryPermission::Read);
|
||||
const bool write = True(perm & MemoryPermission::Write);
|
||||
const bool execute = True(perm & MemoryPermission::Execute);
|
||||
impl->Protect(virtual_offset + virtual_base_offset, length, read, write, execute);
|
||||
}
|
||||
|
||||
void HostMemory::ClearBackingRegion(size_t physical_offset, size_t length, u32 fill_value) {
|
||||
if (!impl || fill_value != 0 || !impl->ClearBackingRegion(physical_offset, length)) {
|
||||
std::memset(backing_base + physical_offset, fill_value, length);
|
||||
}
|
||||
}
|
||||
|
||||
void HostMemory::EnableDirectMappedAddress() {
|
||||
if (impl) {
|
||||
impl->EnableDirectMappedAddress();
|
||||
virtual_size += reinterpret_cast<uintptr_t>(virtual_base);
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace Common
|
||||
55
third_party/host_memory/include/host_memory/free_region_manager.h
vendored
Normal file
55
third_party/host_memory/include/host_memory/free_region_manager.h
vendored
Normal file
|
|
@ -0,0 +1,55 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <mutex>
|
||||
#include <boost/icl/interval_set.hpp>
|
||||
|
||||
namespace Common {
|
||||
|
||||
class FreeRegionManager {
|
||||
public:
|
||||
explicit FreeRegionManager() = default;
|
||||
~FreeRegionManager() = default;
|
||||
|
||||
void SetAddressSpace(void* start, size_t size) {
|
||||
this->FreeBlock(start, size);
|
||||
}
|
||||
|
||||
std::pair<void*, size_t> FreeBlock(void* block_ptr, size_t size) {
|
||||
std::scoped_lock lk(m_mutex);
|
||||
|
||||
// Check to see if we are adjacent to any regions.
|
||||
auto start_address = reinterpret_cast<uintptr_t>(block_ptr);
|
||||
auto end_address = start_address + size;
|
||||
auto it = m_free_regions.find({start_address - 1, end_address + 1});
|
||||
|
||||
// If we are, join with them, ensuring we stay in bounds.
|
||||
if (it != m_free_regions.end()) {
|
||||
start_address = std::min(start_address, it->lower());
|
||||
end_address = std::max(end_address, it->upper());
|
||||
}
|
||||
|
||||
// Free the relevant region.
|
||||
m_free_regions.insert({start_address, end_address});
|
||||
|
||||
// Return the adjusted pointers.
|
||||
block_ptr = reinterpret_cast<void*>(start_address);
|
||||
size = end_address - start_address;
|
||||
return {block_ptr, size};
|
||||
}
|
||||
|
||||
void AllocateBlock(void* block_ptr, size_t size) {
|
||||
std::scoped_lock lk(m_mutex);
|
||||
|
||||
auto address = reinterpret_cast<uintptr_t>(block_ptr);
|
||||
m_free_regions.subtract({address, address + size});
|
||||
}
|
||||
|
||||
private:
|
||||
std::mutex m_mutex;
|
||||
boost::icl::interval_set<uintptr_t> m_free_regions;
|
||||
};
|
||||
|
||||
} // namespace Common
|
||||
75
third_party/host_memory/include/host_memory/host_memory.h
vendored
Normal file
75
third_party/host_memory/include/host_memory/host_memory.h
vendored
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <memory>
|
||||
|
||||
#include "enum_flag_ops.hpp"
|
||||
#include "helpers.hpp"
|
||||
#include "host_memory/virtual_buffer.h"
|
||||
|
||||
namespace Common {
|
||||
|
||||
enum class MemoryPermission : u32 {
|
||||
Read = 1 << 0,
|
||||
Write = 1 << 1,
|
||||
ReadWrite = Read | Write,
|
||||
Execute = 1 << 2,
|
||||
};
|
||||
DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission)
|
||||
|
||||
/**
|
||||
* A low level linear memory buffer, which supports multiple mappings
|
||||
* Its purpose is to rebuild a given sparse memory layout, including mirrors.
|
||||
*/
|
||||
class HostMemory {
|
||||
public:
|
||||
explicit HostMemory(size_t backing_size_, size_t virtual_size_, bool useFastmem);
|
||||
~HostMemory();
|
||||
|
||||
/**
|
||||
* Copy constructors. They shall return a copy of the buffer without the mappings.
|
||||
* TODO: Implement them with COW if needed.
|
||||
*/
|
||||
HostMemory(const HostMemory& other) = delete;
|
||||
HostMemory& operator=(const HostMemory& other) = delete;
|
||||
|
||||
/**
|
||||
* Move constructors. They will move the buffer and the mappings to the new object.
|
||||
*/
|
||||
HostMemory(HostMemory&& other) noexcept;
|
||||
HostMemory& operator=(HostMemory&& other) noexcept;
|
||||
|
||||
void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms, bool separate_heap);
|
||||
void Unmap(size_t virtual_offset, size_t length, bool separate_heap);
|
||||
void Protect(size_t virtual_offset, size_t length, MemoryPermission perms);
|
||||
|
||||
void EnableDirectMappedAddress();
|
||||
|
||||
void ClearBackingRegion(size_t physical_offset, size_t length, u32 fill_value);
|
||||
|
||||
[[nodiscard]] u8* BackingBasePointer() noexcept { return backing_base; }
|
||||
[[nodiscard]] const u8* BackingBasePointer() const noexcept { return backing_base; }
|
||||
|
||||
[[nodiscard]] u8* VirtualBasePointer() noexcept { return virtual_base; }
|
||||
[[nodiscard]] const u8* VirtualBasePointer() const noexcept { return virtual_base; }
|
||||
|
||||
bool IsInVirtualRange(void* address) const noexcept { return address >= virtual_base && address < virtual_base + virtual_size; }
|
||||
|
||||
private:
|
||||
size_t backing_size{};
|
||||
size_t virtual_size{};
|
||||
|
||||
// Low level handler for the platform dependent memory routines
|
||||
class Impl;
|
||||
std::unique_ptr<Impl> impl;
|
||||
u8* backing_base{};
|
||||
u8* virtual_base{};
|
||||
size_t virtual_base_offset{};
|
||||
|
||||
// Fallback if fastmem is not supported on this platform
|
||||
std::unique_ptr<Common::VirtualBuffer<u8>> fallback_buffer;
|
||||
};
|
||||
|
||||
} // namespace Common
|
||||
78
third_party/host_memory/include/host_memory/scope_exit.h
vendored
Normal file
78
third_party/host_memory/include/host_memory/scope_exit.h
vendored
Normal file
|
|
@ -0,0 +1,78 @@
|
|||
// SPDX-FileCopyrightText: 2014 Citra Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <utility>
|
||||
|
||||
namespace detail {
|
||||
template <class F>
|
||||
class ScopeGuard {
|
||||
ScopeGuard(const ScopeGuard&) = delete;
|
||||
ScopeGuard& operator=(const ScopeGuard&) = delete;
|
||||
|
||||
private:
|
||||
F f;
|
||||
bool active;
|
||||
|
||||
public:
|
||||
constexpr ScopeGuard(F f_) : f(std::move(f_)), active(true) {}
|
||||
constexpr ~ScopeGuard() {
|
||||
if (active) {
|
||||
f();
|
||||
}
|
||||
}
|
||||
|
||||
constexpr void Cancel() { active = false; }
|
||||
constexpr ScopeGuard(ScopeGuard&& rhs) : f(std::move(rhs.f)), active(rhs.active) { rhs.Cancel(); }
|
||||
|
||||
ScopeGuard& operator=(ScopeGuard&& rhs) = delete;
|
||||
};
|
||||
|
||||
template <class F>
|
||||
constexpr ScopeGuard<F> MakeScopeGuard(F f) {
|
||||
return ScopeGuard<F>(std::move(f));
|
||||
}
|
||||
|
||||
enum class ScopeGuardOnExit {};
|
||||
|
||||
template <typename F>
|
||||
constexpr ScopeGuard<F> operator+(ScopeGuardOnExit, F&& f) {
|
||||
return ScopeGuard<F>(std::forward<F>(f));
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
#define CONCATENATE_IMPL(s1, s2) s1##s2
|
||||
#define CONCATENATE(s1, s2) CONCATENATE_IMPL(s1, s2)
|
||||
|
||||
#ifdef __COUNTER__
|
||||
#define ANONYMOUS_VARIABLE(pref) CONCATENATE(pref, __COUNTER__)
|
||||
#else
|
||||
#define ANONYMOUS_VARIABLE(pref) CONCATENATE(pref, __LINE__)
|
||||
#endif
|
||||
|
||||
/**
|
||||
* This macro is similar to SCOPE_EXIT, except the object is caller managed. This is intended to be
|
||||
* used when the caller might want to cancel the ScopeExit.
|
||||
*/
|
||||
#define SCOPE_GUARD detail::ScopeGuardOnExit() + [&]()
|
||||
|
||||
/**
|
||||
* This macro allows you to conveniently specify a block of code that will run on scope exit. Handy
|
||||
* for doing ad-hoc clean-up tasks in a function with multiple returns.
|
||||
*
|
||||
* Example usage:
|
||||
* \code
|
||||
* const int saved_val = g_foo;
|
||||
* g_foo = 55;
|
||||
* SCOPE_EXIT{ g_foo = saved_val; };
|
||||
*
|
||||
* if (Bar()) {
|
||||
* return 0;
|
||||
* } else {
|
||||
* return 20;
|
||||
* }
|
||||
* \endcode
|
||||
*/
|
||||
#define SCOPE_EXIT auto ANONYMOUS_VARIABLE(SCOPE_EXIT_STATE_) = SCOPE_GUARD
|
||||
68
third_party/host_memory/include/host_memory/virtual_buffer.h
vendored
Normal file
68
third_party/host_memory/include/host_memory/virtual_buffer.h
vendored
Normal file
|
|
@ -0,0 +1,68 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "helpers.hpp"
|
||||
#include <utility>
|
||||
|
||||
namespace Common {
|
||||
|
||||
void* AllocateMemoryPages(std::size_t size) noexcept;
|
||||
void FreeMemoryPages(void* base, std::size_t size) noexcept;
|
||||
|
||||
template <typename T>
|
||||
class VirtualBuffer final {
|
||||
public:
|
||||
// TODO: Uncomment this and change Common::PageTable::PageInfo to be trivially constructible
|
||||
// using std::atomic_ref once libc++ has support for it
|
||||
// static_assert(
|
||||
// std::is_trivially_constructible_v<T>,
|
||||
// "T must be trivially constructible, as non-trivial constructors will not be executed "
|
||||
// "with the current allocator");
|
||||
|
||||
constexpr VirtualBuffer() = default;
|
||||
explicit VirtualBuffer(std::size_t count) : alloc_size{count * sizeof(T)} {
|
||||
base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
|
||||
}
|
||||
|
||||
~VirtualBuffer() noexcept { FreeMemoryPages(base_ptr, alloc_size); }
|
||||
|
||||
VirtualBuffer(const VirtualBuffer&) = delete;
|
||||
VirtualBuffer& operator=(const VirtualBuffer&) = delete;
|
||||
|
||||
VirtualBuffer(VirtualBuffer&& other) noexcept
|
||||
: alloc_size{std::exchange(other.alloc_size, 0)}, base_ptr{std::exchange(other.base_ptr), nullptr} {}
|
||||
|
||||
VirtualBuffer& operator=(VirtualBuffer&& other) noexcept {
|
||||
alloc_size = std::exchange(other.alloc_size, 0);
|
||||
base_ptr = std::exchange(other.base_ptr, nullptr);
|
||||
return *this;
|
||||
}
|
||||
|
||||
void resize(std::size_t count) {
|
||||
const auto new_size = count * sizeof(T);
|
||||
if (new_size == alloc_size) {
|
||||
return;
|
||||
}
|
||||
|
||||
FreeMemoryPages(base_ptr, alloc_size);
|
||||
|
||||
alloc_size = new_size;
|
||||
base_ptr = reinterpret_cast<T*>(AllocateMemoryPages(alloc_size));
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr const T& operator[](std::size_t index) const { return base_ptr[index]; }
|
||||
[[nodiscard]] constexpr T& operator[](std::size_t index) { return base_ptr[index]; }
|
||||
|
||||
[[nodiscard]] constexpr T* data() { return base_ptr; }
|
||||
[[nodiscard]] constexpr const T* data() const { return base_ptr; }
|
||||
|
||||
[[nodiscard]] constexpr std::size_t size() const { return alloc_size / sizeof(T); }
|
||||
|
||||
private:
|
||||
std::size_t alloc_size{};
|
||||
T* base_ptr{};
|
||||
};
|
||||
|
||||
} // namespace Common
|
||||
47
third_party/host_memory/virtual_buffer.cpp
vendored
Normal file
47
third_party/host_memory/virtual_buffer.cpp
vendored
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <windows.h>
|
||||
#else
|
||||
#include <sys/mman.h>
|
||||
#endif
|
||||
|
||||
#include "host_memory/virtual_buffer.h"
|
||||
|
||||
namespace Common {
|
||||
|
||||
void* AllocateMemoryPages(std::size_t size) noexcept {
|
||||
#ifdef _WIN32
|
||||
void* base{VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE)};
|
||||
#else
|
||||
void* base{mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0)};
|
||||
|
||||
if (base == MAP_FAILED) {
|
||||
base = nullptr;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!base) {
|
||||
Helpers::panic("Failed to allocate memory pages");
|
||||
}
|
||||
|
||||
return base;
|
||||
}
|
||||
|
||||
void FreeMemoryPages(void* base, [[maybe_unused]] std::size_t size) noexcept {
|
||||
if (!base) {
|
||||
return;
|
||||
}
|
||||
#ifdef _WIN32
|
||||
if (!VirtualFree(base, 0, MEM_RELEASE)) {
|
||||
Helpers::panic("Failed to free memory pages");
|
||||
}
|
||||
#else
|
||||
if (munmap(base, size) != 0) {
|
||||
Helpers::panic("Failed to free memory pages");
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
} // namespace Common
|
||||
Loading…
Add table
Reference in a new issue