astc_decoder: Fix LDR CEM1 endpoint calculation

Per the spec, L1 is clamped to the value 0xff if it is greater than 0xff. An oversight caused us to take the maximum of L1 and 0xff, rather than the minimum.

Huge thanks to wwylele for finding this.

Co-Authored-By: Weiyi Wang <wwylele@gmail.com>

.ci/scripts/common/post-upload.sh

@@ -9,11 +9,5 @@ cp "${REV_NAME}-source.tar.xz" "$DIR_NAME"
 
 tar $COMPRESSION_FLAGS "$ARCHIVE_NAME" "$DIR_NAME"
 
-mv "$DIR_NAME" $RELEASE_NAME
-mv "${REV_NAME}-source.tar.xz" $RELEASE_NAME
-
-7z a "$REV_NAME.7z" $RELEASE_NAME
-
 # move the compiled archive into the artifacts directory to be uploaded by travis releases
 mv "$ARCHIVE_NAME" "${ARTIFACTS_DIR}/"
-mv "$REV_NAME.7z" "${ARTIFACTS_DIR}/"

.ci/scripts/windows/upload.sh

@@ -3,8 +3,8 @@
 . .ci/scripts/common/pre-upload.sh
 
 REV_NAME="yuzu-windows-mingw-${GITDATE}-${GITREV}"
-ARCHIVE_NAME="${REV_NAME}.tar.gz"
-COMPRESSION_FLAGS="-czvf"
+ARCHIVE_NAME="${REV_NAME}.tar.xz"
+COMPRESSION_FLAGS="-cJvf"
 
 if [ "${RELEASE_NAME}" = "mainline" ]; then
     DIR_NAME="${REV_NAME}"

CMakeLists.txt

@@ -23,6 +23,8 @@ option(ENABLE_WEB_SERVICE "Enable web services (telemetry, etc.)" ON)
 
 option(YUZU_USE_BUNDLED_BOOST "Download bundled Boost" OFF)
 
+option(YUZU_USE_BUNDLED_LIBUSB "Compile bundled libusb" OFF)
+
 CMAKE_DEPENDENT_OPTION(YUZU_USE_BUNDLED_FFMPEG "Download/Build bundled FFmpeg" ON "WIN32" OFF)
 
 option(YUZU_USE_QT_WEB_ENGINE "Use QtWebEngine for web applet implementation" OFF)
@@ -420,14 +422,22 @@ elseif (TARGET Boost::boost)
 endif()
 
 # Ensure libusb is properly configured (based on dolphin libusb include)
-if(NOT APPLE)
+if(NOT APPLE AND NOT YUZU_USE_BUNDLED_LIBUSB)
     include(FindPkgConfig)
-    find_package(LibUSB)
-endif()
-if (NOT LIBUSB_FOUND)
-    add_subdirectory(externals/libusb)
-    set(LIBUSB_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/externals/libusb/libusb/libusb")
-    set(LIBUSB_LIBRARIES usb)
+    if (PKG_CONFIG_FOUND)
+        pkg_check_modules(LIBUSB QUIET libusb-1.0>=1.0.24)
+    else()
+        find_package(LibUSB)
+    endif()
+
+    if (LIBUSB_FOUND)
+        add_library(usb INTERFACE)
+        target_include_directories(usb INTERFACE "${LIBUSB_INCLUDE_DIRS}")
+        target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARIES}")
+    else()
+        message(WARNING "libusb not found, falling back to externals")
+        set(YUZU_USE_BUNDLED_LIBUSB ON)
+    endif()
 endif()
 
 # List of all FFmpeg components required

externals/CMakeLists.txt

@@ -45,6 +45,11 @@ target_include_directories(microprofile INTERFACE ./microprofile)
 add_library(unicorn-headers INTERFACE)
 target_include_directories(unicorn-headers INTERFACE ./unicorn/include)
 
+# libusb
+if (NOT LIBUSB_FOUND OR YUZU_USE_BUNDLED_LIBUSB)
+    add_subdirectory(libusb)
+endif()
+
 # SDL2
 if (NOT SDL2_FOUND AND ENABLE_SDL2)
     if (NOT WIN32)

externals/libusb/CMakeLists.txt

@@ -1,10 +1,13 @@
-if (MINGW)
-    # The MinGW toolchain for some reason doesn't work with this CMakeLists file after updating to
-    # 1.0.24, so we do it the old-fashioned way for now. We may want to move native Linux toolchains
-    # to here, too (TODO lat9nq?).
+if (MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux"))
+    set(LIBUSB_FOUND ON CACHE BOOL "libusb is present" FORCE)
+    set(LIBUSB_VERSION "1.0.24" CACHE STRING "libusb version string" FORCE)
+
+    # GNU toolchains for some reason doesn't work with the later half of this CMakeLists after
+    # updating to 1.0.24, so we do it the old-fashioned way for now.
 
     set(LIBUSB_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/libusb")
     set(LIBUSB_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libusb")
+
     # Workarounds for MSYS/MinGW
     if (MSYS)
         # CMake on Windows passes `C:/`, but we need `/C/` or `/c/` to use `configure`
@@ -19,36 +22,42 @@ if (MINGW)
 
     set(LIBUSB_CONFIGURE "${LIBUSB_SRC_DIR}/configure")
     set(LIBUSB_MAKEFILE "${LIBUSB_PREFIX}/Makefile")
-    set(LIBUSB_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll.a")
-    set(LIBUSB_SHARED_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll")
-    set(LIBUSB_SHARED_LIBRARY_DEST "${CMAKE_BINARY_DIR}/bin/libusb-1.0.dll")
 
-    # Causes "externals/libusb/libusb/libusb/os/windows_winusb.c:1427:2: error: conversion to non-scalar type requested", so cannot statically link it for now.
-    # set(LIBUSB_CFLAGS "-DGUID_DEVINTERFACE_USB_DEVICE=\\(GUID\\){0xA5DCBF10,0x6530,0x11D2,{0x90,0x1F,0x00,0xC0,0x4F,0xB9,0x51,0xED}}")
+    if (MINGW)
+        set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll.a" CACHE PATH "libusb library path" FORCE)
+        set(LIBUSB_SHARED_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll")
+        set(LIBUSB_SHARED_LIBRARY_DEST "${CMAKE_BINARY_DIR}/bin/libusb-1.0.dll")
+
+        set(LIBUSB_CONFIGURE_ARGS --host=x86_64-w64-mingw32 --build=x86_64-windows)
+    else()
+        set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.a" CACHE PATH "libusb library path" FORCE)
+    endif()
+
+    set(LIBUSB_INCLUDE_DIRS "${LIBUSB_SRC_DIR}/libusb" CACHE PATH "libusb headers path" FORCE)
+
+    # MINGW: causes "externals/libusb/libusb/libusb/os/windows_winusb.c:1427:2: error: conversion to non-scalar type requested", so cannot statically link it for now.
+    if (NOT MINGW)
+        set(LIBUSB_CFLAGS "-DGUID_DEVINTERFACE_USB_DEVICE=\\(GUID\\){0xA5DCBF10,0x6530,0x11D2,{0x90,0x1F,0x00,0xC0,0x4F,0xB9,0x51,0xED}}")
+    endif()
 
     make_directory("${LIBUSB_PREFIX}")
 
     add_custom_command(
         OUTPUT
-            "${LIBUSB_LIBRARY}"
+            "${LIBUSB_LIBRARIES}"
         COMMAND
             make
         WORKING_DIRECTORY
             "${LIBUSB_PREFIX}"
     )
 
-    # We may use this path for other GNU toolchains, so put all of the MinGW-specific stuff here
-    if (MINGW)
-        set(LIBUSB_CONFIGURE_ARGS --host=x86_64-w64-mingw32 --build=x86_64-windows)
-    endif()
-
     add_custom_command(
         OUTPUT
             "${LIBUSB_MAKEFILE}"
         COMMAND
-            # /bin/env
-            #     CFLAGS="${LIBUSB_CFLAGS}"
-            /bin/sh "${LIBUSB_CONFIGURE}"
+            env
+                CFLAGS="${LIBUSB_CFLAGS}"
+            sh "${LIBUSB_CONFIGURE}"
                 ${LIBUSB_CONFIGURE_ARGS}
                 --srcdir="${LIBUSB_SRC_DIR}"
         WORKING_DIRECTORY
@@ -59,7 +68,7 @@ if (MINGW)
         OUTPUT
             "${LIBUSB_CONFIGURE}"
         COMMAND
-            /bin/sh "${LIBUSB_SRC_DIR}/bootstrap.sh"
+            sh "${LIBUSB_SRC_DIR}/bootstrap.sh"
         WORKING_DIRECTORY
             "${LIBUSB_SRC_DIR}"
     )
@@ -68,19 +77,30 @@ if (MINGW)
         OUTPUT
             "${LIBUSB_SHARED_LIBRARY_DEST}"
         COMMAND
-            /bin/cp "${LIBUSB_SHARED_LIBRARY}" "${LIBUSB_SHARED_LIBRARY_DEST}"
+            cp "${LIBUSB_SHARED_LIBRARY}" "${LIBUSB_SHARED_LIBRARY_DEST}"
     )
 
-    add_custom_target(usb-bootstrap ALL DEPENDS "${LIBUSB_CONFIGURE}")
-    add_custom_target(usb-configure ALL DEPENDS "${LIBUSB_MAKEFILE}" usb-bootstrap)
-    add_custom_target(usb-build ALL DEPENDS "${LIBUSB_LIBRARY}" usb-configure)
+    add_custom_target(usb-bootstrap DEPENDS "${LIBUSB_CONFIGURE}")
+    add_custom_target(usb-configure DEPENDS "${LIBUSB_MAKEFILE}" usb-bootstrap)
+    add_custom_target(usb-build ALL DEPENDS "${LIBUSB_LIBRARIES}" usb-configure)
     # Workaround since static linking didn't work out -- We need to copy the DLL to the bin directory
     add_custom_target(usb-copy ALL DEPENDS "${LIBUSB_SHARED_LIBRARY_DEST}" usb-build)
 
-    # Make `usb` alias to LIBUSB_LIBRARY
     add_library(usb INTERFACE)
-    target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARY}")
-else() # MINGW
+    add_dependencies(usb usb-copy)
+    target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARIES}")
+    target_include_directories(usb INTERFACE "${LIBUSB_INCLUDE_DIRS}")
+
+    if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+        Include(FindPkgConfig)
+        pkg_check_modules(LIBUDEV REQUIRED libudev)
+
+        if (LIBUDEV_FOUND)
+            target_include_directories(usb INTERFACE "${LIBUDEV_INCLUDE_DIRS}")
+            target_link_libraries(usb INTERFACE "${LIBUDEV_STATIC_LIBRARIES}")
+        endif()
+    endif()
+else() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     # Ensure libusb compiles with UTF-8 encoding on MSVC
     if(MSVC)
         add_compile_options(/utf-8)
@@ -236,4 +256,4 @@ else() # MINGW
 
 
     configure_file(config.h.in config.h)
-endif() # MINGW
+endif() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")

src/common/CMakeLists.txt

@@ -21,14 +21,14 @@ find_package(Git QUIET)
 
 add_custom_command(OUTPUT scm_rev.cpp
     COMMAND ${CMAKE_COMMAND}
-      -DSRC_DIR="${CMAKE_SOURCE_DIR}"
-      -DBUILD_REPOSITORY="${BUILD_REPOSITORY}"
-      -DTITLE_BAR_FORMAT_IDLE="${TITLE_BAR_FORMAT_IDLE}"
-      -DTITLE_BAR_FORMAT_RUNNING="${TITLE_BAR_FORMAT_RUNNING}"
-      -DBUILD_TAG="${BUILD_TAG}"
-      -DBUILD_ID="${DISPLAY_VERSION}"
-      -DGIT_EXECUTABLE="${GIT_EXECUTABLE}"
-      -P "${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake"
+      -DSRC_DIR=${CMAKE_SOURCE_DIR}
+      -DBUILD_REPOSITORY=${BUILD_REPOSITORY}
+      -DTITLE_BAR_FORMAT_IDLE=${TITLE_BAR_FORMAT_IDLE}
+      -DTITLE_BAR_FORMAT_RUNNING=${TITLE_BAR_FORMAT_RUNNING}
+      -DBUILD_TAG=${BUILD_TAG}
+      -DBUILD_ID=${DISPLAY_VERSION}
+      -DGIT_EXECUTABLE=${GIT_EXECUTABLE}
+      -P ${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake
     DEPENDS
       # WARNING! It was too much work to try and make a common location for this list,
       # so if you need to change it, please update CMakeModules/GenerateSCMRev.cmake as well
@@ -92,6 +92,7 @@ add_custom_command(OUTPUT scm_rev.cpp
       "${CMAKE_CURRENT_SOURCE_DIR}/scm_rev.h"
       # technically we should regenerate if the git version changed, but its not worth the effort imo
       "${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake"
+    VERBATIM
 )
 
 add_library(common STATIC
@@ -130,6 +131,8 @@ add_library(common STATIC
     hash.h
     hex_util.cpp
     hex_util.h
+    host_memory.cpp
+    host_memory.h
     intrusive_red_black_tree.h
     logging/backend.cpp
     logging/backend.h
@@ -138,6 +141,7 @@ add_library(common STATIC
     logging/log.h
     logging/text_formatter.cpp
     logging/text_formatter.h
+    logging/types.h
     lz4_compression.cpp
     lz4_compression.h
     math_util.h

src/common/fs/fs.cpp

@@ -321,7 +321,8 @@ bool RemoveDirContentsRecursively(const fs::path& path) {
 
     std::error_code ec;
 
-    for (const auto& entry : fs::recursive_directory_iterator(path, ec)) {
+    // TODO (Morph): Replace this with recursive_directory_iterator once it's fixed in MSVC.
+    for (const auto& entry : fs::directory_iterator(path, ec)) {
         if (ec) {
             LOG_ERROR(Common_Filesystem,
                       "Failed to completely enumerate the directory at path={}, ec_message={}",
@@ -337,6 +338,12 @@ bool RemoveDirContentsRecursively(const fs::path& path) {
                       PathToUTF8String(entry.path()), ec.message());
             break;
         }
+
+        // TODO (Morph): Remove this when MSVC fixes recursive_directory_iterator.
+        // recursive_directory_iterator throws an exception despite passing in a std::error_code.
+        if (entry.status().type() == fs::file_type::directory) {
+            return RemoveDirContentsRecursively(entry.path());
+        }
     }
 
     if (ec) {
@@ -475,7 +482,8 @@ void IterateDirEntriesRecursively(const std::filesystem::path& path,
 
     std::error_code ec;
 
-    for (const auto& entry : fs::recursive_directory_iterator(path, ec)) {
+    // TODO (Morph): Replace this with recursive_directory_iterator once it's fixed in MSVC.
+    for (const auto& entry : fs::directory_iterator(path, ec)) {
         if (ec) {
             break;
         }
@@ -495,6 +503,12 @@ void IterateDirEntriesRecursively(const std::filesystem::path& path,
                 break;
             }
         }
+
+        // TODO (Morph): Remove this when MSVC fixes recursive_directory_iterator.
+        // recursive_directory_iterator throws an exception despite passing in a std::error_code.
+        if (entry.status().type() == fs::file_type::directory) {
+            IterateDirEntriesRecursively(entry.path(), callback, filter);
+        }
     }
 
     if (callback_error || ec) {

src/common/fs/path_util.h

@@ -209,7 +209,7 @@ void SetYuzuPath(YuzuPath yuzu_path, const std::filesystem::path& new_path);
 
 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] void SetYuzuPath(YuzuPath yuzu_path, const Path& new_path) {
+void SetYuzuPath(YuzuPath yuzu_path, const Path& new_path) {
     if constexpr (IsChar<typename Path::value_type>) {
         SetYuzuPath(yuzu_path, ToU8String(new_path));
     } else {

src/common/host_memory.cpp

@@ -0,0 +1,538 @@
+#ifdef _WIN32
+
+#include <iterator>
+#include <unordered_map>
+#include <boost/icl/separate_interval_set.hpp>
+#include <windows.h>
+#include "common/dynamic_library.h"
+
+#elif defined(__linux__) // ^^^ Windows ^^^ vvv Linux vvv
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#endif // ^^^ Linux ^^^
+
+#include <mutex>
+
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/host_memory.h"
+#include "common/logging/log.h"
+#include "common/scope_exit.h"
+
+namespace Common {
+
+constexpr size_t PageAlignment = 0x1000;
+constexpr size_t HugePageSize = 0x200000;
+
+#ifdef _WIN32
+
+// Manually imported for MinGW compatibility
+#ifndef MEM_RESERVE_PLACEHOLDER
+#define MEM_RESERVE_PLACEHOLDER 0x0004000
+#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)) {
+        LOG_CRITICAL(HW_Memory, "Failed to load {}", 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()) {
+            LOG_CRITICAL(HW_Memory, "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) {
+            LOG_CRITICAL(HW_Memory, "Failed to allocate {} 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();
+            LOG_CRITICAL(HW_Memory, "Failed to reserve {} 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();
+            LOG_CRITICAL(HW_Memory, "Failed to map {} 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();
+            LOG_CRITICAL(HW_Memory, "Failed to reserve {} 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) {
+        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::lock_guard 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) {
+        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::lock_guard 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)) {
+                LOG_CRITICAL(HW_Memory, "Failed to change virtual memory protect rules");
+            }
+            ++it;
+        }
+    }
+
+    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)) {
+                    LOG_CRITICAL(HW_Memory, "Failed to unmap virtual memory placeholder");
+                }
+            }
+            Coalesce(0, virtual_size);
+        }
+        if (virtual_base) {
+            if (!VirtualFree(virtual_base, 0, MEM_RELEASE)) {
+                LOG_CRITICAL(HW_Memory, "Failed to free virtual memory");
+            }
+        }
+        if (backing_base) {
+            if (!pfn_UnmapViewOfFile2(process, backing_base, MEM_PRESERVE_PLACEHOLDER)) {
+                LOG_CRITICAL(HW_Memory, "Failed to unmap backing memory placeholder");
+            }
+            if (!VirtualFreeEx(process, backing_base, 0, MEM_RELEASE)) {
+                LOG_CRITICAL(HW_Memory, "Failed to free backing memory");
+            }
+        }
+        if (!CloseHandle(backing_handle)) {
+            LOG_CRITICAL(HW_Memory, "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)) {
+            LOG_CRITICAL(HW_Memory, "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)) {
+            LOG_CRITICAL(HW_Memory, "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)) {
+            LOG_CRITICAL(HW_Memory, "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)) {
+            LOG_CRITICAL(HW_Memory, "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) {
+        placeholders.erase(it);
+        placeholder_host_pointers.erase(it->lower());
+    }
+
+    /// Return true when a given memory region is a "nieche" and the placeholders don't have to be
+    /// splitted.
+    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) {
+            const bool is_root = it == placeholders.begin() && virtual_offset == 0;
+            return is_root || 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__) // ^^^ Windows ^^^ vvv Linux vvv
+
+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();
+            }
+        });
+
+        // Backing memory initialization
+        fd = memfd_create("HostMemory", 0);
+        if (fd == -1) {
+            LOG_CRITICAL(HW_Memory, "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) {
+            LOG_CRITICAL(HW_Memory, "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) {
+            LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        // Virtual memory initialization
+        virtual_base = static_cast<u8*>(
+            mmap(nullptr, virtual_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+        if (virtual_base == MAP_FAILED) {
+            LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        good = true;
+    }
+
+    ~Impl() {
+        Release();
+    }
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
+
+        void* ret = mmap(virtual_base + virtual_offset, length, PROT_READ | PROT_WRITE,
+                         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.
+
+        void* ret = mmap(virtual_base + virtual_offset, length, 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) {
+        int flags = 0;
+        if (read) {
+            flags |= PROT_READ;
+        }
+        if (write) {
+            flags |= PROT_WRITE;
+        }
+        int ret = mprotect(virtual_base + virtual_offset, length, flags);
+        ASSERT_MSG(ret == 0, "mprotect failed: {}", strerror(errno));
+    }
+
+    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)};
+
+private:
+    /// Release all resources in the object
+    void Release() {
+        if (virtual_base != MAP_FAILED) {
+            int ret = munmap(virtual_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));
+        }
+    }
+
+    int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
+};
+
+#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 propper way on your platform.
+        throw std::bad_alloc{};
+    }
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length) {}
+
+    void Unmap(size_t virtual_offset, size_t length) {}
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {}
+
+    u8* backing_base{nullptr};
+    u8* virtual_base{nullptr};
+};
+
+#endif // ^^^ Generic ^^^
+
+HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
+    : backing_size(backing_size_), virtual_size(virtual_size_) {
+    try {
+        // Try to allocate a fastmem arena.
+        // The implementation will fail with std::bad_alloc on errors.
+        impl = std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment),
+                                                  AlignUp(virtual_size, PageAlignment) +
+                                                      3 * HugePageSize);
+        backing_base = impl->backing_base;
+        virtual_base = impl->virtual_base;
+
+        if (virtual_base) {
+            virtual_base += 2 * HugePageSize - 1;
+            virtual_base -= reinterpret_cast<size_t>(virtual_base) & (HugePageSize - 1);
+            virtual_base_offset = virtual_base - impl->virtual_base;
+        }
+
+    } catch (const std::bad_alloc&) {
+        LOG_CRITICAL(HW_Memory,
+                     "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) {
+    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);
+}
+
+void HostMemory::Unmap(size_t virtual_offset, size_t length) {
+    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, bool read, bool write) {
+    ASSERT(virtual_offset % PageAlignment == 0);
+    ASSERT(length % PageAlignment == 0);
+    ASSERT(virtual_offset + length <= virtual_size);
+    if (length == 0 || !virtual_base || !impl) {
+        return;
+    }
+    impl->Protect(virtual_offset + virtual_base_offset, length, read, write);
+}
+
+} // namespace Common

src/common/host_memory.h

@@ -0,0 +1,70 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include "common/common_types.h"
+#include "common/virtual_buffer.h"
+
+namespace Common {
+
+/**
+ * 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_);
+    ~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);
+
+    void Unmap(size_t virtual_offset, size_t length);
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write);
+
+    [[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;
+    }
+
+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

src/common/logging/backend.cpp

@@ -17,6 +17,7 @@
 #endif
 
 #include "common/assert.h"
+#include "common/fs/file.h"
 #include "common/fs/fs.h"
 #include "common/logging/backend.h"
 #include "common/logging/log.h"
@@ -140,10 +141,14 @@ private:
     std::chrono::steady_clock::time_point time_origin{std::chrono::steady_clock::now()};
 };
 
+ConsoleBackend::~ConsoleBackend() = default;
+
 void ConsoleBackend::Write(const Entry& entry) {
     PrintMessage(entry);
 }
 
+ColorConsoleBackend::~ColorConsoleBackend() = default;
+
 void ColorConsoleBackend::Write(const Entry& entry) {
     PrintColoredMessage(entry);
 }
@@ -157,16 +162,19 @@ FileBackend::FileBackend(const std::filesystem::path& filename) {
     void(FS::RemoveFile(old_filename));
     void(FS::RenameFile(filename, old_filename));
 
-    file = FS::IOFile(filename, FS::FileAccessMode::Write, FS::FileType::TextFile);
+    file =
+        std::make_unique<FS::IOFile>(filename, FS::FileAccessMode::Write, FS::FileType::TextFile);
 }
 
+FileBackend::~FileBackend() = default;
+
 void FileBackend::Write(const Entry& entry) {
     // prevent logs from going over the maximum size (in case its spamming and the user doesn't
     // know)
     constexpr std::size_t MAX_BYTES_WRITTEN = 100 * 1024 * 1024;
     constexpr std::size_t MAX_BYTES_WRITTEN_EXTENDED = 1024 * 1024 * 1024;
 
-    if (!file.IsOpen()) {
+    if (!file->IsOpen()) {
         return;
     }
 
@@ -176,147 +184,20 @@ void FileBackend::Write(const Entry& entry) {
         return;
     }
 
-    bytes_written += file.WriteString(FormatLogMessage(entry).append(1, '\n'));
+    bytes_written += file->WriteString(FormatLogMessage(entry).append(1, '\n'));
     if (entry.log_level >= Level::Error) {
-        void(file.Flush());
+        void(file->Flush());
     }
 }
 
+DebuggerBackend::~DebuggerBackend() = default;
+
 void DebuggerBackend::Write(const Entry& entry) {
 #ifdef _WIN32
     ::OutputDebugStringW(UTF8ToUTF16W(FormatLogMessage(entry).append(1, '\n')).c_str());
 #endif
 }
 
-/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
-#define ALL_LOG_CLASSES()                                                                          \
-    CLS(Log)                                                                                       \
-    CLS(Common)                                                                                    \
-    SUB(Common, Filesystem)                                                                        \
-    SUB(Common, Memory)                                                                            \
-    CLS(Core)                                                                                      \
-    SUB(Core, ARM)                                                                                 \
-    SUB(Core, Timing)                                                                              \
-    CLS(Config)                                                                                    \
-    CLS(Debug)                                                                                     \
-    SUB(Debug, Emulated)                                                                           \
-    SUB(Debug, GPU)                                                                                \
-    SUB(Debug, Breakpoint)                                                                         \
-    SUB(Debug, GDBStub)                                                                            \
-    CLS(Kernel)                                                                                    \
-    SUB(Kernel, SVC)                                                                               \
-    CLS(Service)                                                                                   \
-    SUB(Service, ACC)                                                                              \
-    SUB(Service, Audio)                                                                            \
-    SUB(Service, AM)                                                                               \
-    SUB(Service, AOC)                                                                              \
-    SUB(Service, APM)                                                                              \
-    SUB(Service, ARP)                                                                              \
-    SUB(Service, BCAT)                                                                             \
-    SUB(Service, BPC)                                                                              \
-    SUB(Service, BGTC)                                                                             \
-    SUB(Service, BTDRV)                                                                            \
-    SUB(Service, BTM)                                                                              \
-    SUB(Service, Capture)                                                                          \
-    SUB(Service, ERPT)                                                                             \
-    SUB(Service, ETicket)                                                                          \
-    SUB(Service, EUPLD)                                                                            \
-    SUB(Service, Fatal)                                                                            \
-    SUB(Service, FGM)                                                                              \
-    SUB(Service, Friend)                                                                           \
-    SUB(Service, FS)                                                                               \
-    SUB(Service, GRC)                                                                              \
-    SUB(Service, HID)                                                                              \
-    SUB(Service, IRS)                                                                              \
-    SUB(Service, LBL)                                                                              \
-    SUB(Service, LDN)                                                                              \
-    SUB(Service, LDR)                                                                              \
-    SUB(Service, LM)                                                                               \
-    SUB(Service, Migration)                                                                        \
-    SUB(Service, Mii)                                                                              \
-    SUB(Service, MM)                                                                               \
-    SUB(Service, NCM)                                                                              \
-    SUB(Service, NFC)                                                                              \
-    SUB(Service, NFP)                                                                              \
-    SUB(Service, NIFM)                                                                             \
-    SUB(Service, NIM)                                                                              \
-    SUB(Service, NPNS)                                                                             \
-    SUB(Service, NS)                                                                               \
-    SUB(Service, NVDRV)                                                                            \
-    SUB(Service, OLSC)                                                                             \
-    SUB(Service, PCIE)                                                                             \
-    SUB(Service, PCTL)                                                                             \
-    SUB(Service, PCV)                                                                              \
-    SUB(Service, PM)                                                                               \
-    SUB(Service, PREPO)                                                                            \
-    SUB(Service, PSC)                                                                              \
-    SUB(Service, PSM)                                                                              \
-    SUB(Service, SET)                                                                              \
-    SUB(Service, SM)                                                                               \
-    SUB(Service, SPL)                                                                              \
-    SUB(Service, SSL)                                                                              \
-    SUB(Service, TCAP)                                                                             \
-    SUB(Service, Time)                                                                             \
-    SUB(Service, USB)                                                                              \
-    SUB(Service, VI)                                                                               \
-    SUB(Service, WLAN)                                                                             \
-    CLS(HW)                                                                                        \
-    SUB(HW, Memory)                                                                                \
-    SUB(HW, LCD)                                                                                   \
-    SUB(HW, GPU)                                                                                   \
-    SUB(HW, AES)                                                                                   \
-    CLS(IPC)                                                                                       \
-    CLS(Frontend)                                                                                  \
-    CLS(Render)                                                                                    \
-    SUB(Render, Software)                                                                          \
-    SUB(Render, OpenGL)                                                                            \
-    SUB(Render, Vulkan)                                                                            \
-    CLS(Audio)                                                                                     \
-    SUB(Audio, DSP)                                                                                \
-    SUB(Audio, Sink)                                                                               \
-    CLS(Input)                                                                                     \
-    CLS(Network)                                                                                   \
-    CLS(Loader)                                                                                    \
-    CLS(CheatEngine)                                                                               \
-    CLS(Crypto)                                                                                    \
-    CLS(WebService)
-
-// GetClassName is a macro defined by Windows.h, grrr...
-const char* GetLogClassName(Class log_class) {
-    switch (log_class) {
-#define CLS(x)                                                                                     \
-    case Class::x:                                                                                 \
-        return #x;
-#define SUB(x, y)                                                                                  \
-    case Class::x##_##y:                                                                           \
-        return #x "." #y;
-        ALL_LOG_CLASSES()
-#undef CLS
-#undef SUB
-    case Class::Count:
-        break;
-    }
-    return "Invalid";
-}
-
-const char* GetLevelName(Level log_level) {
-#define LVL(x)                                                                                     \
-    case Level::x:                                                                                 \
-        return #x
-    switch (log_level) {
-        LVL(Trace);
-        LVL(Debug);
-        LVL(Info);
-        LVL(Warning);
-        LVL(Error);
-        LVL(Critical);
-    case Level::Count:
-        break;
-    }
-#undef LVL
-    return "Invalid";
-}
-
 void SetGlobalFilter(const Filter& filter) {
     Impl::Instance().SetGlobalFilter(filter);
 }

src/common/logging/backend.h

@@ -1,36 +1,24 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
+
 #pragma once
 
-#include <chrono>
 #include <filesystem>
 #include <memory>
 #include <string>
 #include <string_view>
-#include "common/fs/file.h"
 #include "common/logging/filter.h"
 #include "common/logging/log.h"
 
+namespace Common::FS {
+class IOFile;
+}
+
 namespace Common::Log {
 
 class Filter;
 
-/**
- * A log entry. Log entries are store in a structured format to permit more varied output
- * formatting on different frontends, as well as facilitating filtering and aggregation.
- */
-struct Entry {
-    std::chrono::microseconds timestamp;
-    Class log_class{};
-    Level log_level{};
-    const char* filename = nullptr;
-    unsigned int line_num = 0;
-    std::string function;
-    std::string message;
-    bool final_entry = false;
-};
-
 /**
  * Interface for logging backends. As loggers can be created and removed at runtime, this can be
  * used by a frontend for adding a custom logging backend as needed
@@ -38,6 +26,7 @@ struct Entry {
 class Backend {
 public:
     virtual ~Backend() = default;
+
     virtual void SetFilter(const Filter& new_filter) {
         filter = new_filter;
     }
@@ -53,6 +42,8 @@ private:
  */
 class ConsoleBackend : public Backend {
 public:
+    ~ConsoleBackend() override;
+
     static const char* Name() {
         return "console";
     }
@@ -67,6 +58,8 @@ public:
  */
 class ColorConsoleBackend : public Backend {
 public:
+    ~ColorConsoleBackend() override;
+
     static const char* Name() {
         return "color_console";
     }
@@ -83,6 +76,7 @@ public:
 class FileBackend : public Backend {
 public:
     explicit FileBackend(const std::filesystem::path& filename);
+    ~FileBackend() override;
 
     static const char* Name() {
         return "file";
@@ -95,7 +89,7 @@ public:
     void Write(const Entry& entry) override;
 
 private:
-    FS::IOFile file;
+    std::unique_ptr<FS::IOFile> file;
     std::size_t bytes_written = 0;
 };
 
@@ -104,6 +98,8 @@ private:
  */
 class DebuggerBackend : public Backend {
 public:
+    ~DebuggerBackend() override;
+
     static const char* Name() {
         return "debugger";
     }
@@ -119,17 +115,6 @@ void RemoveBackend(std::string_view backend_name);
 
 Backend* GetBackend(std::string_view backend_name);
 
-/**
- * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
- * instead of underscores as in the enumeration.
- */
-const char* GetLogClassName(Class log_class);
-
-/**
- * Returns the name of the passed log level as a C-string.
- */
-const char* GetLevelName(Level log_level);
-
 /**
  * The global filter will prevent any messages from even being processed if they are filtered. Each
  * backend can have a filter, but if the level is lower than the global filter, the backend will

src/common/logging/filter.cpp

@@ -3,7 +3,6 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
-#include "common/logging/backend.h"
 #include "common/logging/filter.h"
 #include "common/string_util.h"
 
@@ -22,7 +21,7 @@ Level GetLevelByName(const It begin, const It end) {
 
 template <typename It>
 Class GetClassByName(const It begin, const It end) {
-    for (ClassType i = 0; i < static_cast<ClassType>(Class::Count); ++i) {
+    for (u8 i = 0; i < static_cast<u8>(Class::Count); ++i) {
         const char* level_name = GetLogClassName(static_cast<Class>(i));
         if (Common::ComparePartialString(begin, end, level_name)) {
             return static_cast<Class>(i);
@@ -62,6 +61,135 @@ bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
 }
 } // Anonymous namespace
 
+/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
+#define ALL_LOG_CLASSES()                                                                          \
+    CLS(Log)                                                                                       \
+    CLS(Common)                                                                                    \
+    SUB(Common, Filesystem)                                                                        \
+    SUB(Common, Memory)                                                                            \
+    CLS(Core)                                                                                      \
+    SUB(Core, ARM)                                                                                 \
+    SUB(Core, Timing)                                                                              \
+    CLS(Config)                                                                                    \
+    CLS(Debug)                                                                                     \
+    SUB(Debug, Emulated)                                                                           \
+    SUB(Debug, GPU)                                                                                \
+    SUB(Debug, Breakpoint)                                                                         \
+    SUB(Debug, GDBStub)                                                                            \
+    CLS(Kernel)                                                                                    \
+    SUB(Kernel, SVC)                                                                               \
+    CLS(Service)                                                                                   \
+    SUB(Service, ACC)                                                                              \
+    SUB(Service, Audio)                                                                            \
+    SUB(Service, AM)                                                                               \
+    SUB(Service, AOC)                                                                              \
+    SUB(Service, APM)                                                                              \
+    SUB(Service, ARP)                                                                              \
+    SUB(Service, BCAT)                                                                             \
+    SUB(Service, BPC)                                                                              \
+    SUB(Service, BGTC)                                                                             \
+    SUB(Service, BTDRV)                                                                            \
+    SUB(Service, BTM)                                                                              \
+    SUB(Service, Capture)                                                                          \
+    SUB(Service, ERPT)                                                                             \
+    SUB(Service, ETicket)                                                                          \
+    SUB(Service, EUPLD)                                                                            \
+    SUB(Service, Fatal)                                                                            \
+    SUB(Service, FGM)                                                                              \
+    SUB(Service, Friend)                                                                           \
+    SUB(Service, FS)                                                                               \
+    SUB(Service, GRC)                                                                              \
+    SUB(Service, HID)                                                                              \
+    SUB(Service, IRS)                                                                              \
+    SUB(Service, LBL)                                                                              \
+    SUB(Service, LDN)                                                                              \
+    SUB(Service, LDR)                                                                              \
+    SUB(Service, LM)                                                                               \
+    SUB(Service, Migration)                                                                        \
+    SUB(Service, Mii)                                                                              \
+    SUB(Service, MM)                                                                               \
+    SUB(Service, NCM)                                                                              \
+    SUB(Service, NFC)                                                                              \
+    SUB(Service, NFP)                                                                              \
+    SUB(Service, NIFM)                                                                             \
+    SUB(Service, NIM)                                                                              \
+    SUB(Service, NPNS)                                                                             \
+    SUB(Service, NS)                                                                               \
+    SUB(Service, NVDRV)                                                                            \
+    SUB(Service, OLSC)                                                                             \
+    SUB(Service, PCIE)                                                                             \
+    SUB(Service, PCTL)                                                                             \
+    SUB(Service, PCV)                                                                              \
+    SUB(Service, PM)                                                                               \
+    SUB(Service, PREPO)                                                                            \
+    SUB(Service, PSC)                                                                              \
+    SUB(Service, PSM)                                                                              \
+    SUB(Service, SET)                                                                              \
+    SUB(Service, SM)                                                                               \
+    SUB(Service, SPL)                                                                              \
+    SUB(Service, SSL)                                                                              \
+    SUB(Service, TCAP)                                                                             \
+    SUB(Service, Time)                                                                             \
+    SUB(Service, USB)                                                                              \
+    SUB(Service, VI)                                                                               \
+    SUB(Service, WLAN)                                                                             \
+    CLS(HW)                                                                                        \
+    SUB(HW, Memory)                                                                                \
+    SUB(HW, LCD)                                                                                   \
+    SUB(HW, GPU)                                                                                   \
+    SUB(HW, AES)                                                                                   \
+    CLS(IPC)                                                                                       \
+    CLS(Frontend)                                                                                  \
+    CLS(Render)                                                                                    \
+    SUB(Render, Software)                                                                          \
+    SUB(Render, OpenGL)                                                                            \
+    SUB(Render, Vulkan)                                                                            \
+    CLS(Audio)                                                                                     \
+    SUB(Audio, DSP)                                                                                \
+    SUB(Audio, Sink)                                                                               \
+    CLS(Input)                                                                                     \
+    CLS(Network)                                                                                   \
+    CLS(Loader)                                                                                    \
+    CLS(CheatEngine)                                                                               \
+    CLS(Crypto)                                                                                    \
+    CLS(WebService)
+
+// GetClassName is a macro defined by Windows.h, grrr...
+const char* GetLogClassName(Class log_class) {
+    switch (log_class) {
+#define CLS(x)                                                                                     \
+    case Class::x:                                                                                 \
+        return #x;
+#define SUB(x, y)                                                                                  \
+    case Class::x##_##y:                                                                           \
+        return #x "." #y;
+        ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+    case Class::Count:
+        break;
+    }
+    return "Invalid";
+}
+
+const char* GetLevelName(Level log_level) {
+#define LVL(x)                                                                                     \
+    case Level::x:                                                                                 \
+        return #x
+    switch (log_level) {
+        LVL(Trace);
+        LVL(Debug);
+        LVL(Info);
+        LVL(Warning);
+        LVL(Error);
+        LVL(Critical);
+    case Level::Count:
+        break;
+    }
+#undef LVL
+    return "Invalid";
+}
+
 Filter::Filter(Level default_level) {
     ResetAll(default_level);
 }

src/common/logging/filter.h

@@ -5,12 +5,24 @@
 #pragma once
 
 #include <array>
+#include <chrono>
 #include <cstddef>
 #include <string_view>
 #include "common/logging/log.h"
 
 namespace Common::Log {
 
+/**
+ * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
+ * instead of underscores as in the enumeration.
+ */
+const char* GetLogClassName(Class log_class);
+
+/**
+ * Returns the name of the passed log level as a C-string.
+ */
+const char* GetLevelName(Level log_level);
+
 /**
  * Implements a log message filter which allows different log classes to have different minimum
  * severity levels. The filter can be changed at runtime and can be parsed from a string to allow

src/common/logging/log.h

@@ -5,7 +5,7 @@
 #pragma once
 
 #include <fmt/format.h>
-#include "common/common_types.h"
+#include "common/logging/types.h"
 
 namespace Common::Log {
 
@@ -18,124 +18,6 @@ constexpr const char* TrimSourcePath(std::string_view source) {
     return source.data() + idx;
 }
 
-/// Specifies the severity or level of detail of the log message.
-enum class Level : u8 {
-    Trace,    ///< Extremely detailed and repetitive debugging information that is likely to
-              ///< pollute logs.
-    Debug,    ///< Less detailed debugging information.
-    Info,     ///< Status information from important points during execution.
-    Warning,  ///< Minor or potential problems found during execution of a task.
-    Error,    ///< Major problems found during execution of a task that prevent it from being
-              ///< completed.
-    Critical, ///< Major problems during execution that threaten the stability of the entire
-              ///< application.
-
-    Count ///< Total number of logging levels
-};
-
-typedef u8 ClassType;
-
-/**
- * Specifies the sub-system that generated the log message.
- *
- * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
- * backend.cpp.
- */
-enum class Class : ClassType {
-    Log,               ///< Messages about the log system itself
-    Common,            ///< Library routines
-    Common_Filesystem, ///< Filesystem interface library
-    Common_Memory,     ///< Memory mapping and management functions
-    Core,              ///< LLE emulation core
-    Core_ARM,          ///< ARM CPU core
-    Core_Timing,       ///< CoreTiming functions
-    Config,            ///< Emulator configuration (including commandline)
-    Debug,             ///< Debugging tools
-    Debug_Emulated,    ///< Debug messages from the emulated programs
-    Debug_GPU,         ///< GPU debugging tools
-    Debug_Breakpoint,  ///< Logging breakpoints and watchpoints
-    Debug_GDBStub,     ///< GDB Stub
-    Kernel,            ///< The HLE implementation of the CTR kernel
-    Kernel_SVC,        ///< Kernel system calls
-    Service,           ///< HLE implementation of system services. Each major service
-                       ///< should have its own subclass.
-    Service_ACC,       ///< The ACC (Accounts) service
-    Service_AM,        ///< The AM (Applet manager) service
-    Service_AOC,       ///< The AOC (AddOn Content) service
-    Service_APM,       ///< The APM (Performance) service
-    Service_ARP,       ///< The ARP service
-    Service_Audio,     ///< The Audio (Audio control) service
-    Service_BCAT,      ///< The BCAT service
-    Service_BGTC,      ///< The BGTC (Background Task Controller) service
-    Service_BPC,       ///< The BPC service
-    Service_BTDRV,     ///< The Bluetooth driver service
-    Service_BTM,       ///< The BTM service
-    Service_Capture,   ///< The capture service
-    Service_ERPT,      ///< The error reporting service
-    Service_ETicket,   ///< The ETicket service
-    Service_EUPLD,     ///< The error upload service
-    Service_Fatal,     ///< The Fatal service
-    Service_FGM,       ///< The FGM service
-    Service_Friend,    ///< The friend service
-    Service_FS,        ///< The FS (Filesystem) service
-    Service_GRC,       ///< The game recording service
-    Service_HID,       ///< The HID (Human interface device) service
-    Service_IRS,       ///< The IRS service
-    Service_LBL,       ///< The LBL (LCD backlight) service
-    Service_LDN,       ///< The LDN (Local domain network) service
-    Service_LDR,       ///< The loader service
-    Service_LM,        ///< The LM (Logger) service
-    Service_Migration, ///< The migration service
-    Service_Mii,       ///< The Mii service
-    Service_MM,        ///< The MM (Multimedia) service
-    Service_NCM,       ///< The NCM service
-    Service_NFC,       ///< The NFC (Near-field communication) service
-    Service_NFP,       ///< The NFP service
-    Service_NIFM,      ///< The NIFM (Network interface) service
-    Service_NIM,       ///< The NIM service
-    Service_NPNS,      ///< The NPNS service
-    Service_NS,        ///< The NS services
-    Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
-    Service_OLSC,      ///< The OLSC service
-    Service_PCIE,      ///< The PCIe service
-    Service_PCTL,      ///< The PCTL (Parental control) service
-    Service_PCV,       ///< The PCV service
-    Service_PM,        ///< The PM service
-    Service_PREPO,     ///< The PREPO (Play report) service
-    Service_PSC,       ///< The PSC service
-    Service_PSM,       ///< The PSM service
-    Service_SET,       ///< The SET (Settings) service
-    Service_SM,        ///< The SM (Service manager) service
-    Service_SPL,       ///< The SPL service
-    Service_SSL,       ///< The SSL service
-    Service_TCAP,      ///< The TCAP service.
-    Service_Time,      ///< The time service
-    Service_USB,       ///< The USB (Universal Serial Bus) service
-    Service_VI,        ///< The VI (Video interface) service
-    Service_WLAN,      ///< The WLAN (Wireless local area network) service
-    HW,                ///< Low-level hardware emulation
-    HW_Memory,         ///< Memory-map and address translation
-    HW_LCD,            ///< LCD register emulation
-    HW_GPU,            ///< GPU control emulation
-    HW_AES,            ///< AES engine emulation
-    IPC,               ///< IPC interface
-    Frontend,          ///< Emulator UI
-    Render,            ///< Emulator video output and hardware acceleration
-    Render_Software,   ///< Software renderer backend
-    Render_OpenGL,     ///< OpenGL backend
-    Render_Vulkan,     ///< Vulkan backend
-    Audio,             ///< Audio emulation
-    Audio_DSP,         ///< The HLE implementation of the DSP
-    Audio_Sink,        ///< Emulator audio output backend
-    Loader,            ///< ROM loader
-    CheatEngine,       ///< Memory manipulation and engine VM functions
-    Crypto,            ///< Cryptographic engine/functions
-    Input,             ///< Input emulation
-    Network,           ///< Network emulation
-    WebService,        ///< Interface to yuzu Web Services
-    Count              ///< Total number of logging classes
-};
-
 /// Logs a message to the global logger, using fmt
 void FmtLogMessageImpl(Class log_class, Level log_level, const char* filename,
                        unsigned int line_num, const char* function, const char* format,

src/common/logging/text_formatter.cpp

@@ -11,7 +11,7 @@
 
 #include "common/assert.h"
 #include "common/common_funcs.h"
-#include "common/logging/backend.h"
+#include "common/logging/filter.h"
 #include "common/logging/log.h"
 #include "common/logging/text_formatter.h"
 #include "common/string_util.h"

src/common/logging/types.h

@@ -0,0 +1,142 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <chrono>
+
+#include "common/common_types.h"
+
+namespace Common::Log {
+
+/// Specifies the severity or level of detail of the log message.
+enum class Level : u8 {
+    Trace,    ///< Extremely detailed and repetitive debugging information that is likely to
+              ///< pollute logs.
+    Debug,    ///< Less detailed debugging information.
+    Info,     ///< Status information from important points during execution.
+    Warning,  ///< Minor or potential problems found during execution of a task.
+    Error,    ///< Major problems found during execution of a task that prevent it from being
+              ///< completed.
+    Critical, ///< Major problems during execution that threaten the stability of the entire
+              ///< application.
+
+    Count ///< Total number of logging levels
+};
+
+/**
+ * Specifies the sub-system that generated the log message.
+ *
+ * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
+ * filter.cpp.
+ */
+enum class Class : u8 {
+    Log,               ///< Messages about the log system itself
+    Common,            ///< Library routines
+    Common_Filesystem, ///< Filesystem interface library
+    Common_Memory,     ///< Memory mapping and management functions
+    Core,              ///< LLE emulation core
+    Core_ARM,          ///< ARM CPU core
+    Core_Timing,       ///< CoreTiming functions
+    Config,            ///< Emulator configuration (including commandline)
+    Debug,             ///< Debugging tools
+    Debug_Emulated,    ///< Debug messages from the emulated programs
+    Debug_GPU,         ///< GPU debugging tools
+    Debug_Breakpoint,  ///< Logging breakpoints and watchpoints
+    Debug_GDBStub,     ///< GDB Stub
+    Kernel,            ///< The HLE implementation of the CTR kernel
+    Kernel_SVC,        ///< Kernel system calls
+    Service,           ///< HLE implementation of system services. Each major service
+                       ///< should have its own subclass.
+    Service_ACC,       ///< The ACC (Accounts) service
+    Service_AM,        ///< The AM (Applet manager) service
+    Service_AOC,       ///< The AOC (AddOn Content) service
+    Service_APM,       ///< The APM (Performance) service
+    Service_ARP,       ///< The ARP service
+    Service_Audio,     ///< The Audio (Audio control) service
+    Service_BCAT,      ///< The BCAT service
+    Service_BGTC,      ///< The BGTC (Background Task Controller) service
+    Service_BPC,       ///< The BPC service
+    Service_BTDRV,     ///< The Bluetooth driver service
+    Service_BTM,       ///< The BTM service
+    Service_Capture,   ///< The capture service
+    Service_ERPT,      ///< The error reporting service
+    Service_ETicket,   ///< The ETicket service
+    Service_EUPLD,     ///< The error upload service
+    Service_Fatal,     ///< The Fatal service
+    Service_FGM,       ///< The FGM service
+    Service_Friend,    ///< The friend service
+    Service_FS,        ///< The FS (Filesystem) service
+    Service_GRC,       ///< The game recording service
+    Service_HID,       ///< The HID (Human interface device) service
+    Service_IRS,       ///< The IRS service
+    Service_LBL,       ///< The LBL (LCD backlight) service
+    Service_LDN,       ///< The LDN (Local domain network) service
+    Service_LDR,       ///< The loader service
+    Service_LM,        ///< The LM (Logger) service
+    Service_Migration, ///< The migration service
+    Service_Mii,       ///< The Mii service
+    Service_MM,        ///< The MM (Multimedia) service
+    Service_NCM,       ///< The NCM service
+    Service_NFC,       ///< The NFC (Near-field communication) service
+    Service_NFP,       ///< The NFP service
+    Service_NIFM,      ///< The NIFM (Network interface) service
+    Service_NIM,       ///< The NIM service
+    Service_NPNS,      ///< The NPNS service
+    Service_NS,        ///< The NS services
+    Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
+    Service_OLSC,      ///< The OLSC service
+    Service_PCIE,      ///< The PCIe service
+    Service_PCTL,      ///< The PCTL (Parental control) service
+    Service_PCV,       ///< The PCV service
+    Service_PM,        ///< The PM service
+    Service_PREPO,     ///< The PREPO (Play report) service
+    Service_PSC,       ///< The PSC service
+    Service_PSM,       ///< The PSM service
+    Service_SET,       ///< The SET (Settings) service
+    Service_SM,        ///< The SM (Service manager) service
+    Service_SPL,       ///< The SPL service
+    Service_SSL,       ///< The SSL service
+    Service_TCAP,      ///< The TCAP service.
+    Service_Time,      ///< The time service
+    Service_USB,       ///< The USB (Universal Serial Bus) service
+    Service_VI,        ///< The VI (Video interface) service
+    Service_WLAN,      ///< The WLAN (Wireless local area network) service
+    HW,                ///< Low-level hardware emulation
+    HW_Memory,         ///< Memory-map and address translation
+    HW_LCD,            ///< LCD register emulation
+    HW_GPU,            ///< GPU control emulation
+    HW_AES,            ///< AES engine emulation
+    IPC,               ///< IPC interface
+    Frontend,          ///< Emulator UI
+    Render,            ///< Emulator video output and hardware acceleration
+    Render_Software,   ///< Software renderer backend
+    Render_OpenGL,     ///< OpenGL backend
+    Render_Vulkan,     ///< Vulkan backend
+    Audio,             ///< Audio emulation
+    Audio_DSP,         ///< The HLE implementation of the DSP
+    Audio_Sink,        ///< Emulator audio output backend
+    Loader,            ///< ROM loader
+    CheatEngine,       ///< Memory manipulation and engine VM functions
+    Crypto,            ///< Cryptographic engine/functions
+    Input,             ///< Input emulation
+    Network,           ///< Network emulation
+    WebService,        ///< Interface to yuzu Web Services
+    Count              ///< Total number of logging classes
+};
+
+/**
+ * A log entry. Log entries are store in a structured format to permit more varied output
+ * formatting on different frontends, as well as facilitating filtering and aggregation.
+ */
+struct Entry {
+    std::chrono::microseconds timestamp;
+    Class log_class{};
+    Level log_level{};
+    const char* filename = nullptr;
+    unsigned int line_num = 0;
+    std::string function;
+    std::string message;
+    bool final_entry = false;
+};
+
+} // namespace Common::Log

src/common/page_table.h

@@ -111,6 +111,8 @@ struct PageTable {
     VirtualBuffer<u64> backing_addr;
 
     size_t current_address_space_width_in_bits;
+
+    u8* fastmem_arena;
 };
 
 } // namespace Common

src/common/settings.cpp

@@ -55,6 +55,7 @@ void LogSettings() {
     log_setting("Renderer_UseAsynchronousGpuEmulation",
                 values.use_asynchronous_gpu_emulation.GetValue());
     log_setting("Renderer_UseNvdecEmulation", values.use_nvdec_emulation.GetValue());
+    log_setting("Renderer_AccelerateASTC", values.accelerate_astc.GetValue());
     log_setting("Renderer_UseVsync", values.use_vsync.GetValue());
     log_setting("Renderer_UseAssemblyShaders", values.use_assembly_shaders.GetValue());
     log_setting("Renderer_UseAsynchronousShaders", values.use_asynchronous_shaders.GetValue());
@@ -90,6 +91,13 @@ bool IsGPULevelHigh() {
            values.gpu_accuracy.GetValue() == GPUAccuracy::High;
 }
 
+bool IsFastmemEnabled() {
+    if (values.cpu_accuracy.GetValue() == CPUAccuracy::DebugMode) {
+        return values.cpuopt_fastmem;
+    }
+    return true;
+}
+
 float Volume() {
     if (values.audio_muted) {
         return 0.0f;
@@ -115,6 +123,7 @@ void RestoreGlobalState(bool is_powered_on) {
     values.cpuopt_unsafe_unfuse_fma.SetGlobal(true);
     values.cpuopt_unsafe_reduce_fp_error.SetGlobal(true);
     values.cpuopt_unsafe_inaccurate_nan.SetGlobal(true);
+    values.cpuopt_unsafe_fastmem_check.SetGlobal(true);
 
     // Renderer
     values.renderer_backend.SetGlobal(true);
@@ -127,6 +136,7 @@ void RestoreGlobalState(bool is_powered_on) {
     values.gpu_accuracy.SetGlobal(true);
     values.use_asynchronous_gpu_emulation.SetGlobal(true);
     values.use_nvdec_emulation.SetGlobal(true);
+    values.accelerate_astc.SetGlobal(true);
     values.use_vsync.SetGlobal(true);
     values.use_assembly_shaders.SetGlobal(true);
     values.use_asynchronous_shaders.SetGlobal(true);

src/common/settings.h

@@ -125,10 +125,12 @@ struct Values {
     bool cpuopt_const_prop;
     bool cpuopt_misc_ir;
     bool cpuopt_reduce_misalign_checks;
+    bool cpuopt_fastmem;
 
     Setting<bool> cpuopt_unsafe_unfuse_fma;
     Setting<bool> cpuopt_unsafe_reduce_fp_error;
     Setting<bool> cpuopt_unsafe_inaccurate_nan;
+    Setting<bool> cpuopt_unsafe_fastmem_check;
 
     // Renderer
     Setting<RendererBackend> renderer_backend;
@@ -145,6 +147,7 @@ struct Values {
     Setting<GPUAccuracy> gpu_accuracy;
     Setting<bool> use_asynchronous_gpu_emulation;
     Setting<bool> use_nvdec_emulation;
+    Setting<bool> accelerate_astc;
     Setting<bool> use_vsync;
     Setting<bool> use_assembly_shaders;
     Setting<bool> use_asynchronous_shaders;
@@ -249,6 +252,8 @@ void SetConfiguringGlobal(bool is_global);
 bool IsGPULevelExtreme();
 bool IsGPULevelHigh();
 
+bool IsFastmemEnabled();
+
 float Volume();
 
 std::string GetTimeZoneString();

src/core/arm/dynarmic/arm_dynarmic_32.cpp

@@ -128,6 +128,7 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
     if (page_table) {
         config.page_table = reinterpret_cast<std::array<std::uint8_t*, NUM_PAGE_TABLE_ENTRIES>*>(
             page_table->pointers.data());
+        config.fastmem_pointer = page_table->fastmem_arena;
     }
     config.absolute_offset_page_table = true;
     config.page_table_pointer_mask_bits = Common::PageTable::ATTRIBUTE_BITS;
@@ -143,7 +144,7 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
 
     // Code cache size
     config.code_cache_size = 512 * 1024 * 1024;
-    config.far_code_offset = 256 * 1024 * 1024;
+    config.far_code_offset = 400 * 1024 * 1024;
 
     // Safe optimizations
     if (Settings::values.cpu_accuracy.GetValue() == Settings::CPUAccuracy::DebugMode) {
@@ -171,6 +172,9 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
         if (!Settings::values.cpuopt_reduce_misalign_checks) {
             config.only_detect_misalignment_via_page_table_on_page_boundary = false;
         }
+        if (!Settings::values.cpuopt_fastmem) {
+            config.fastmem_pointer = nullptr;
+        }
     }
 
     // Unsafe optimizations

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -160,6 +160,10 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
         config.absolute_offset_page_table = true;
         config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
         config.only_detect_misalignment_via_page_table_on_page_boundary = true;
+
+        config.fastmem_pointer = page_table->fastmem_arena;
+        config.fastmem_address_space_bits = address_space_bits;
+        config.silently_mirror_fastmem = false;
     }
 
     // Multi-process state
@@ -181,7 +185,7 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
 
     // Code cache size
     config.code_cache_size = 512 * 1024 * 1024;
-    config.far_code_offset = 256 * 1024 * 1024;
+    config.far_code_offset = 400 * 1024 * 1024;
 
     // Safe optimizations
     if (Settings::values.cpu_accuracy.GetValue() == Settings::CPUAccuracy::DebugMode) {
@@ -209,6 +213,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
         if (!Settings::values.cpuopt_reduce_misalign_checks) {
             config.only_detect_misalignment_via_page_table_on_page_boundary = false;
         }
+        if (!Settings::values.cpuopt_fastmem) {
+            config.fastmem_pointer = nullptr;
+        }
     }
 
     // Unsafe optimizations
@@ -223,6 +230,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
         if (Settings::values.cpuopt_unsafe_inaccurate_nan.GetValue()) {
             config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
         }
+        if (Settings::values.cpuopt_unsafe_fastmem_check.GetValue()) {
+            config.fastmem_address_space_bits = 64;
+        }
     }
 
     return std::make_shared<Dynarmic::A64::Jit>(config);

src/core/device_memory.cpp

@@ -6,7 +6,7 @@
 
 namespace Core {
 
-DeviceMemory::DeviceMemory() : buffer{DramMemoryMap::Size} {}
+DeviceMemory::DeviceMemory() : buffer{DramMemoryMap::Size, 1ULL << 39} {}
 DeviceMemory::~DeviceMemory() = default;
 
 } // namespace Core

src/core/device_memory.h

@@ -5,7 +5,7 @@
 #pragma once
 
 #include "common/common_types.h"
-#include "common/virtual_buffer.h"
+#include "common/host_memory.h"
 
 namespace Core {
 
@@ -21,27 +21,30 @@ enum : u64 {
 };
 }; // namespace DramMemoryMap
 
-class DeviceMemory : NonCopyable {
+class DeviceMemory {
 public:
     explicit DeviceMemory();
     ~DeviceMemory();
 
+    DeviceMemory& operator=(const DeviceMemory&) = delete;
+    DeviceMemory(const DeviceMemory&) = delete;
+
     template <typename T>
     PAddr GetPhysicalAddr(const T* ptr) const {
-        return (reinterpret_cast<uintptr_t>(ptr) - reinterpret_cast<uintptr_t>(buffer.data())) +
+        return (reinterpret_cast<uintptr_t>(ptr) -
+                reinterpret_cast<uintptr_t>(buffer.BackingBasePointer())) +
                DramMemoryMap::Base;
     }
 
     u8* GetPointer(PAddr addr) {
-        return buffer.data() + (addr - DramMemoryMap::Base);
+        return buffer.BackingBasePointer() + (addr - DramMemoryMap::Base);
     }
 
     const u8* GetPointer(PAddr addr) const {
-        return buffer.data() + (addr - DramMemoryMap::Base);
+        return buffer.BackingBasePointer() + (addr - DramMemoryMap::Base);
     }
 
-private:
-    Common::VirtualBuffer<u8> buffer;
+    Common::HostMemory buffer;
 };
 
 } // namespace Core

src/core/file_sys/program_metadata.cpp

@@ -150,7 +150,9 @@ void ProgramMetadata::Print() const {
     LOG_DEBUG(Service_FS, " > Is Retail:           {}", acid_header.is_retail ? "YES" : "NO");
     LOG_DEBUG(Service_FS, "Title ID Min:           0x{:016X}", acid_header.title_id_min);
     LOG_DEBUG(Service_FS, "Title ID Max:           0x{:016X}", acid_header.title_id_max);
-    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", acid_file_access.permissions);
+    u64_le permissions_l; // local copy to fix alignment error
+    std::memcpy(&permissions_l, &acid_file_access.permissions, sizeof(permissions_l));
+    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", permissions_l);
 
     // Begin ACI0 printing (actual perms, unsigned)
     LOG_DEBUG(Service_FS, "Magic:                  {:.4}", aci_header.magic.data());

src/core/file_sys/vfs.cpp

@@ -6,7 +6,6 @@
 #include <numeric>
 #include <string>
 #include "common/fs/path_util.h"
-#include "common/logging/backend.h"
 #include "core/file_sys/mode.h"
 #include "core/file_sys/vfs.h"
 

src/core/file_sys/vfs_libzip.cpp

@@ -14,7 +14,6 @@
 #endif
 
 #include "common/fs/path_util.h"
-#include "common/logging/backend.h"
 #include "core/file_sys/vfs.h"
 #include "core/file_sys/vfs_libzip.h"
 #include "core/file_sys/vfs_vector.h"

src/core/hle/kernel/hle_ipc.cpp

@@ -41,12 +41,27 @@ SessionRequestManager::SessionRequestManager(KernelCore& kernel_) : kernel{kerne
 
 SessionRequestManager::~SessionRequestManager() = default;
 
+bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& context) const {
+    if (IsDomain() && context.HasDomainMessageHeader()) {
+        const auto& message_header = context.GetDomainMessageHeader();
+        const auto object_id = message_header.object_id;
+
+        if (object_id > DomainHandlerCount()) {
+            LOG_CRITICAL(IPC, "object_id {} is too big!", object_id);
+            return false;
+        }
+        return DomainHandler(object_id - 1) != nullptr;
+    } else {
+        return session_handler != nullptr;
+    }
+}
+
 void SessionRequestHandler::ClientConnected(KServerSession* session) {
-    session->SetSessionHandler(shared_from_this());
+    session->ClientConnected(shared_from_this());
 }
 
 void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
-    session->SetSessionHandler(nullptr);
+    session->ClientDisconnected();
 }
 
 HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,

src/core/hle/kernel/hle_ipc.h

@@ -85,8 +85,8 @@ public:
      */
     void ClientDisconnected(KServerSession* session);
 
-    std::shared_ptr<ServiceThread> GetServiceThread() const {
-        return service_thread.lock();
+    std::weak_ptr<ServiceThread> GetServiceThread() const {
+        return service_thread;
     }
 
 protected:
@@ -152,10 +152,12 @@ public:
         session_handler = std::move(handler);
     }
 
-    std::shared_ptr<ServiceThread> GetServiceThread() const {
+    std::weak_ptr<ServiceThread> GetServiceThread() const {
         return session_handler->GetServiceThread();
     }
 
+    bool HasSessionRequestHandler(const HLERequestContext& context) const;
+
 private:
     bool is_domain{};
     SessionRequestHandlerPtr session_handler;
@@ -163,7 +165,6 @@ private:
 
 private:
     KernelCore& kernel;
-    std::weak_ptr<ServiceThread> service_thread;
 };
 
 /**

src/core/hle/kernel/k_client_port.cpp

@@ -28,6 +28,9 @@ void KClientPort::Initialize(KPort* parent_port_, s32 max_sessions_, std::string
 void KClientPort::OnSessionFinalized() {
     KScopedSchedulerLock sl{kernel};
 
+    // This might happen if a session was improperly used with this port.
+    ASSERT_MSG(num_sessions > 0, "num_sessions is invalid");
+
     const auto prev = num_sessions--;
     if (prev == max_sessions) {
         this->NotifyAvailable();
@@ -66,7 +69,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out,
     // Update the session counts.
     {
         // Atomically increment the number of sessions.
-        s32 new_sessions;
+        s32 new_sessions{};
         {
             const auto max = max_sessions;
             auto cur_sessions = num_sessions.load(std::memory_order_acquire);

src/core/hle/kernel/k_light_condition_variable.h

@@ -18,41 +18,58 @@ class KernelCore;
 
 class KLightConditionVariable {
 public:
-    explicit KLightConditionVariable(KernelCore& kernel_)
-        : thread_queue(kernel_), kernel(kernel_) {}
+    explicit KLightConditionVariable(KernelCore& kernel_) : kernel{kernel_} {}
 
-    void Wait(KLightLock* lock, s64 timeout = -1) {
-        WaitImpl(lock, timeout);
-        lock->Lock();
+    void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true) {
+        WaitImpl(lock, timeout, allow_terminating_thread);
     }
 
     void Broadcast() {
         KScopedSchedulerLock lk{kernel};
-        while (thread_queue.WakeupFrontThread() != nullptr) {
-            // We want to signal all threads, and so should continue waking up until there's nothing
-            // to wake.
+
+        // Signal all threads.
+        for (auto& thread : wait_list) {
+            thread.SetState(ThreadState::Runnable);
         }
     }
 
 private:
-    void WaitImpl(KLightLock* lock, s64 timeout) {
+    void WaitImpl(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
         KThread* owner = GetCurrentThreadPointer(kernel);
 
         // Sleep the thread.
         {
-            KScopedSchedulerLockAndSleep lk(kernel, owner, timeout);
-            lock->Unlock();
+            KScopedSchedulerLockAndSleep lk{kernel, owner, timeout};
 
-            if (!thread_queue.SleepThread(owner)) {
+            if (!allow_terminating_thread && owner->IsTerminationRequested()) {
                 lk.CancelSleep();
                 return;
             }
+
+            lock->Unlock();
+
+            // Set the thread as waiting.
+            GetCurrentThread(kernel).SetState(ThreadState::Waiting);
+
+            // Add the thread to the queue.
+            wait_list.push_back(GetCurrentThread(kernel));
+        }
+
+        // Remove the thread from the wait list.
+        {
+            KScopedSchedulerLock sl{kernel};
+
+            wait_list.erase(wait_list.iterator_to(GetCurrentThread(kernel)));
         }
 
         // Cancel the task that the sleep setup.
         kernel.TimeManager().UnscheduleTimeEvent(owner);
+
+        // Re-acquire the lock.
+        lock->Lock();
     }
-    KThreadQueue thread_queue;
+
     KernelCore& kernel;
+    KThread::WaiterList wait_list{};
 };
 } // namespace Kernel

src/core/hle/kernel/k_light_lock.cpp

@@ -59,11 +59,7 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
         owner_thread->AddWaiter(cur_thread);
 
         // Set thread states.
-        if (cur_thread->GetState() == ThreadState::Runnable) {
-            cur_thread->SetState(ThreadState::Waiting);
-        } else {
-            KScheduler::SetSchedulerUpdateNeeded(kernel);
-        }
+        cur_thread->SetState(ThreadState::Waiting);
 
         if (owner_thread->IsSuspended()) {
             owner_thread->ContinueIfHasKernelWaiters();
@@ -73,10 +69,9 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
     // We're no longer waiting on the lock owner.
     {
         KScopedSchedulerLock sl{kernel};
-        KThread* owner_thread = cur_thread->GetLockOwner();
-        if (owner_thread) {
+
+        if (KThread* owner_thread = cur_thread->GetLockOwner(); owner_thread != nullptr) {
             owner_thread->RemoveWaiter(cur_thread);
-            KScheduler::SetSchedulerUpdateNeeded(kernel);
         }
     }
 }
@@ -95,17 +90,13 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
 
         // Pass the lock to the next owner.
         uintptr_t next_tag = 0;
-        if (next_owner) {
+        if (next_owner != nullptr) {
             next_tag = reinterpret_cast<uintptr_t>(next_owner);
             if (num_waiters > 1) {
                 next_tag |= 0x1;
             }
 
-            if (next_owner->GetState() == ThreadState::Waiting) {
-                next_owner->SetState(ThreadState::Runnable);
-            } else {
-                KScheduler::SetSchedulerUpdateNeeded(kernel);
-            }
+            next_owner->SetState(ThreadState::Runnable);
 
             if (next_owner->IsSuspended()) {
                 next_owner->ContinueIfHasKernelWaiters();

src/core/hle/kernel/k_process.cpp

@@ -201,17 +201,15 @@ bool KProcess::ReleaseUserException(KThread* thread) {
 
         // Remove waiter thread.
         s32 num_waiters{};
-        KThread* next = thread->RemoveWaiterByKey(
-            std::addressof(num_waiters),
-            reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
-        if (next != nullptr) {
-            if (next->GetState() == ThreadState::Waiting) {
-                next->SetState(ThreadState::Runnable);
-            } else {
-                KScheduler::SetSchedulerUpdateNeeded(kernel);
-            }
+        if (KThread* next = thread->RemoveWaiterByKey(
+                std::addressof(num_waiters),
+                reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
+            next != nullptr) {
+            next->SetState(ThreadState::Runnable);
         }
 
+        KScheduler::SetSchedulerUpdateNeeded(kernel);
+
         return true;
     } else {
         return false;

src/core/hle/kernel/k_resource_limit.cpp

@@ -117,7 +117,7 @@ bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) {
         if (current_hints[index] + value <= limit_values[index] &&
             (timeout < 0 || core_timing->GetGlobalTimeNs().count() < timeout)) {
             waiter_count++;
-            cond_var.Wait(&lock, timeout);
+            cond_var.Wait(&lock, timeout, false);
             waiter_count--;
         } else {
             break;

src/core/hle/kernel/k_server_session.cpp

@@ -8,6 +8,7 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
+#include "common/scope_exit.h"
 #include "core/core_timing.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/hle_ipc.h"
@@ -119,11 +120,25 @@ ResultCode KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memor
 
     context->PopulateFromIncomingCommandBuffer(kernel.CurrentProcess()->GetHandleTable(), cmd_buf);
 
-    if (auto strong_ptr = manager->GetServiceThread(); strong_ptr) {
-        strong_ptr->QueueSyncRequest(*parent, std::move(context));
-        return ResultSuccess;
+    // In the event that something fails here, stub a result to prevent the game from crashing.
+    // This is a work-around in the event that somehow we process a service request after the
+    // session has been closed by the game. This has been observed to happen rarely in Pokemon
+    // Sword/Shield and is likely a result of us using host threads/scheduling for services.
+    // TODO(bunnei): Find a better solution here.
+    auto error_guard = SCOPE_GUARD({ CompleteSyncRequest(*context); });
+
+    // Ensure we have a session request handler
+    if (manager->HasSessionRequestHandler(*context)) {
+        if (auto strong_ptr = manager->GetServiceThread().lock()) {
+            strong_ptr->QueueSyncRequest(*parent, std::move(context));
+
+            // We succeeded.
+            error_guard.Cancel();
+        } else {
+            ASSERT_MSG(false, "strong_ptr is nullptr!");
+        }
     } else {
-        ASSERT_MSG(false, "strong_ptr was nullptr!");
+        ASSERT_MSG(false, "handler is invalid!");
     }
 
     return ResultSuccess;
@@ -131,13 +146,20 @@ ResultCode KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memor
 
 ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
     ResultCode result = ResultSuccess;
+
     // If the session has been converted to a domain, handle the domain request
-    if (IsDomain() && context.HasDomainMessageHeader()) {
-        result = HandleDomainSyncRequest(context);
-        // If there is no domain header, the regular session handler is used
-    } else if (manager->HasSessionHandler()) {
-        // If this ServerSession has an associated HLE handler, forward the request to it.
-        result = manager->SessionHandler().HandleSyncRequest(*this, context);
+    if (manager->HasSessionRequestHandler(context)) {
+        if (IsDomain() && context.HasDomainMessageHeader()) {
+            result = HandleDomainSyncRequest(context);
+            // If there is no domain header, the regular session handler is used
+        } else if (manager->HasSessionHandler()) {
+            // If this ServerSession has an associated HLE handler, forward the request to it.
+            result = manager->SessionHandler().HandleSyncRequest(*this, context);
+        }
+    } else {
+        ASSERT_MSG(false, "Session handler is invalid, stubbing response!");
+        IPC::ResponseBuilder rb(context, 2);
+        rb.Push(ResultSuccess);
     }
 
     if (convert_to_domain) {

src/core/hle/kernel/k_server_session.h

@@ -62,15 +62,14 @@ public:
 
     void OnClientClosed();
 
-    /**
-     * Sets the HLE handler for the session. This handler will be called to service IPC requests
-     * instead of the regular IPC machinery. (The regular IPC machinery is currently not
-     * implemented.)
-     */
-    void SetSessionHandler(SessionRequestHandlerPtr handler) {
+    void ClientConnected(SessionRequestHandlerPtr handler) {
         manager->SetSessionHandler(std::move(handler));
     }
 
+    void ClientDisconnected() {
+        manager = nullptr;
+    }
+
     /**
      * Handle a sync request from the emulated application.
      *

src/core/hle/kernel/kernel.cpp

@@ -63,8 +63,6 @@ struct KernelCore::Impl {
         global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
         global_handle_table = std::make_unique<Kernel::KHandleTable>(kernel);
 
-        service_thread_manager =
-            std::make_unique<Common::ThreadWorker>(1, "yuzu:ServiceThreadManager");
         is_phantom_mode_for_singlecore = false;
 
         InitializePhysicalCores();
@@ -96,7 +94,6 @@ struct KernelCore::Impl {
         process_list.clear();
 
         // Ensures all service threads gracefully shutdown
-        service_thread_manager.reset();
         service_threads.clear();
 
         next_object_id = 0;
@@ -680,10 +677,6 @@ struct KernelCore::Impl {
     // Threads used for services
     std::unordered_set<std::shared_ptr<Kernel::ServiceThread>> service_threads;
 
-    // Service threads are managed by a worker thread, so that a calling service thread can queue up
-    // the release of itself
-    std::unique_ptr<Common::ThreadWorker> service_thread_manager;
-
     std::array<KThread*, Core::Hardware::NUM_CPU_CORES> suspend_threads;
     std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES> interrupts{};
     std::array<std::unique_ptr<Kernel::KScheduler>, Core::Hardware::NUM_CPU_CORES> schedulers{};
@@ -986,17 +979,14 @@ void KernelCore::ExitSVCProfile() {
 
 std::weak_ptr<Kernel::ServiceThread> KernelCore::CreateServiceThread(const std::string& name) {
     auto service_thread = std::make_shared<Kernel::ServiceThread>(*this, 1, name);
-    impl->service_thread_manager->QueueWork(
-        [this, service_thread] { impl->service_threads.emplace(service_thread); });
+    impl->service_threads.emplace(service_thread);
     return service_thread;
 }
 
 void KernelCore::ReleaseServiceThread(std::weak_ptr<Kernel::ServiceThread> service_thread) {
-    impl->service_thread_manager->QueueWork([this, service_thread] {
-        if (auto strong_ptr = service_thread.lock()) {
-            impl->service_threads.erase(strong_ptr);
-        }
-    });
+    if (auto strong_ptr = service_thread.lock()) {
+        impl->service_threads.erase(strong_ptr);
+    }
 }
 
 Init::KSlabResourceCounts& KernelCore::SlabResourceCounts() {

src/core/hle/kernel/svc.cpp

@@ -449,8 +449,8 @@ static ResultCode CancelSynchronization(Core::System& system, Handle handle) {
 
     // Get the thread from its handle.
     KScopedAutoObject thread =
-        system.Kernel().CurrentProcess()->GetHandleTable().GetObject<KThread>(
-            static_cast<Handle>(handle));
+        system.Kernel().CurrentProcess()->GetHandleTable().GetObject<KThread>(handle);
+    R_UNLESS(thread.IsNotNull(), ResultInvalidHandle);
 
     // Cancel the thread's wait.
     thread->WaitCancel();

src/core/hle/service/bcat/backend/boxcat.cpp

@@ -19,7 +19,6 @@
 #include "common/fs/fs.h"
 #include "common/fs/path_util.h"
 #include "common/hex_util.h"
-#include "common/logging/backend.h"
 #include "common/logging/log.h"
 #include "common/settings.h"
 #include "core/core.h"

src/core/hle/service/hid/hid.cpp

@@ -236,7 +236,7 @@ Hid::Hid(Core::System& system_) : ServiceFramework{system_, "hid"} {
         {80, &Hid::GetGyroscopeZeroDriftMode, "GetGyroscopeZeroDriftMode"},
         {81, &Hid::ResetGyroscopeZeroDriftMode, "ResetGyroscopeZeroDriftMode"},
         {82, &Hid::IsSixAxisSensorAtRest, "IsSixAxisSensorAtRest"},
-        {83, nullptr, "IsFirmwareUpdateAvailableForSixAxisSensor"},
+        {83, &Hid::IsFirmwareUpdateAvailableForSixAxisSensor, "IsFirmwareUpdateAvailableForSixAxisSensor"},
         {91, &Hid::ActivateGesture, "ActivateGesture"},
         {100, &Hid::SetSupportedNpadStyleSet, "SetSupportedNpadStyleSet"},
         {101, &Hid::GetSupportedNpadStyleSet, "GetSupportedNpadStyleSet"},
@@ -710,6 +710,27 @@ void Hid::IsSixAxisSensorAtRest(Kernel::HLERequestContext& ctx) {
                 .IsSixAxisSensorAtRest());
 }
 
+void Hid::IsFirmwareUpdateAvailableForSixAxisSensor(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    struct Parameters {
+        Controller_NPad::DeviceHandle sixaxis_handle;
+        INSERT_PADDING_WORDS_NOINIT(1);
+        u64 applet_resource_user_id;
+    };
+
+    const auto parameters{rp.PopRaw<Parameters>()};
+
+    LOG_WARNING(
+        Service_HID,
+        "(STUBBED) called, npad_type={}, npad_id={}, device_index={}, applet_resource_user_id={}",
+        parameters.sixaxis_handle.npad_type, parameters.sixaxis_handle.npad_id,
+        parameters.sixaxis_handle.device_index, parameters.applet_resource_user_id);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(false);
+}
+
 void Hid::ActivateGesture(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     struct Parameters {

src/core/hle/service/hid/hid.h

@@ -100,6 +100,7 @@ private:
     void GetGyroscopeZeroDriftMode(Kernel::HLERequestContext& ctx);
     void ResetGyroscopeZeroDriftMode(Kernel::HLERequestContext& ctx);
     void IsSixAxisSensorAtRest(Kernel::HLERequestContext& ctx);
+    void IsFirmwareUpdateAvailableForSixAxisSensor(Kernel::HLERequestContext& ctx);
     void ActivateGesture(Kernel::HLERequestContext& ctx);
     void SetSupportedNpadStyleSet(Kernel::HLERequestContext& ctx);
     void GetSupportedNpadStyleSet(Kernel::HLERequestContext& ctx);

src/core/hle/service/lm/lm.cpp

@@ -51,6 +51,24 @@ struct hash<Service::LM::LogPacketHeaderEntry> {
 } // namespace std
 
 namespace Service::LM {
+namespace {
+std::string_view NameOf(LogSeverity severity) {
+    switch (severity) {
+    case LogSeverity::Trace:
+        return "TRACE";
+    case LogSeverity::Info:
+        return "INFO";
+    case LogSeverity::Warning:
+        return "WARNING";
+    case LogSeverity::Error:
+        return "ERROR";
+    case LogSeverity::Fatal:
+        return "FATAL";
+    default:
+        return "UNKNOWN";
+    }
+}
+} // Anonymous namespace
 
 enum class LogDestination : u32 {
     TargetManager = 1 << 0,
@@ -262,33 +280,8 @@ private:
         if (text_log) {
             output_log += fmt::format("Log Text: {}\n", *text_log);
         }
-
-        switch (entry.severity) {
-        case LogSeverity::Trace:
-            LOG_DEBUG(Service_LM, "LogManager TRACE ({}):\n{}", DestinationToString(destination),
-                      output_log);
-            break;
-        case LogSeverity::Info:
-            LOG_INFO(Service_LM, "LogManager INFO ({}):\n{}", DestinationToString(destination),
-                     output_log);
-            break;
-        case LogSeverity::Warning:
-            LOG_WARNING(Service_LM, "LogManager WARNING ({}):\n{}",
-                        DestinationToString(destination), output_log);
-            break;
-        case LogSeverity::Error:
-            LOG_ERROR(Service_LM, "LogManager ERROR ({}):\n{}", DestinationToString(destination),
-                      output_log);
-            break;
-        case LogSeverity::Fatal:
-            LOG_CRITICAL(Service_LM, "LogManager FATAL ({}):\n{}", DestinationToString(destination),
-                         output_log);
-            break;
-        default:
-            LOG_CRITICAL(Service_LM, "LogManager UNKNOWN ({}):\n{}",
-                         DestinationToString(destination), output_log);
-            break;
-        }
+        LOG_DEBUG(Service_LM, "LogManager {} ({}):\n{}", NameOf(entry.severity),
+                  DestinationToString(destination), output_log);
     }
 
     static std::string DestinationToString(LogDestination destination) {

src/core/hle/service/service.h

@@ -40,9 +40,11 @@ namespace SM {
 class ServiceManager;
 }
 
-static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters)
-/// Arbitrary default number of maximum connections to an HLE service.
-static const u32 DefaultMaxSessions = 64;
+/// Default number of maximum connections to a server session.
+static constexpr u32 ServerSessionCountMax = 0x40;
+static_assert(ServerSessionCountMax == 0x40,
+              "ServerSessionCountMax isn't 0x40 somehow, this assert is a reminder that this will "
+              "break lots of things");
 
 /**
  * This is an non-templated base of ServiceFramework to reduce code bloat and compilation times, it
@@ -178,7 +180,7 @@ protected:
      *                      connected to this service at the same time.
      */
     explicit ServiceFramework(Core::System& system_, const char* service_name_,
-                              u32 max_sessions_ = DefaultMaxSessions)
+                              u32 max_sessions_ = ServerSessionCountMax)
         : ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {}
 
     /// Registers handlers in the service.

src/core/hle/service/sm/sm.cpp

@@ -151,31 +151,23 @@ ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext&
     std::string name(PopServiceName(rp));
 
     // Find the named port.
-    auto result = service_manager.GetServicePort(name);
-    if (result.Failed()) {
-        LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, result.Code().raw);
-        return result.Code();
+    auto port_result = service_manager.GetServicePort(name);
+    if (port_result.Failed()) {
+        LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, port_result.Code().raw);
+        return port_result.Code();
     }
-    auto* port = result.Unwrap();
-
-    // Reserve a new session from the process resource limit.
-    Kernel::KScopedResourceReservation session_reservation(
-        kernel.CurrentProcess()->GetResourceLimit(), Kernel::LimitableResource::Sessions);
-    R_UNLESS(session_reservation.Succeeded(), Kernel::ResultLimitReached);
+    auto& port = port_result.Unwrap()->GetClientPort();
 
     // Create a new session.
-    auto* session = Kernel::KSession::Create(kernel);
-    session->Initialize(&port->GetClientPort(), std::move(name));
-
-    // Commit the session reservation.
-    session_reservation.Commit();
-
-    // Enqueue the session with the named port.
-    port->EnqueueSession(&session->GetServerSession());
+    Kernel::KClientSession* session{};
+    if (const auto result = port.CreateSession(std::addressof(session)); result.IsError()) {
+        LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, result.raw);
+        return result;
+    }
 
     LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
 
-    return MakeResult(&session->GetClientSession());
+    return MakeResult(session);
 }
 
 void SM::RegisterService(Kernel::HLERequestContext& ctx) {

src/core/memory.cpp

@@ -12,6 +12,7 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "common/page_table.h"
+#include "common/settings.h"
 #include "common/swap.h"
 #include "core/arm/arm_interface.h"
 #include "core/core.h"
@@ -32,6 +33,7 @@ struct Memory::Impl {
 
     void SetCurrentPageTable(Kernel::KProcess& process, u32 core_id) {
         current_page_table = &process.PageTable().PageTableImpl();
+        current_page_table->fastmem_arena = system.DeviceMemory().buffer.VirtualBasePointer();
 
         const std::size_t address_space_width = process.PageTable().GetAddressSpaceWidth();
 
@@ -41,13 +43,23 @@ struct Memory::Impl {
     void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) {
         ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
         ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
+        ASSERT_MSG(target >= DramMemoryMap::Base && target < DramMemoryMap::End,
+                   "Out of bounds target: {:016X}", target);
         MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory);
+
+        if (Settings::IsFastmemEnabled()) {
+            system.DeviceMemory().buffer.Map(base, target - DramMemoryMap::Base, size);
+        }
     }
 
     void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
         ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
         ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
         MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, 0, Common::PageType::Unmapped);
+
+        if (Settings::IsFastmemEnabled()) {
+            system.DeviceMemory().buffer.Unmap(base, size);
+        }
     }
 
     bool IsValidVirtualAddress(const Kernel::KProcess& process, const VAddr vaddr) const {
@@ -466,6 +478,12 @@ struct Memory::Impl {
         if (vaddr == 0) {
             return;
         }
+
+        if (Settings::IsFastmemEnabled()) {
+            const bool is_read_enable = Settings::IsGPULevelHigh() || !cached;
+            system.DeviceMemory().buffer.Protect(vaddr, size, is_read_enable, !cached);
+        }
+
         // Iterate over a contiguous CPU address space, which corresponds to the specified GPU
         // address space, marking the region as un/cached. The region is marked un/cached at a
         // granularity of CPU pages, hence why we iterate on a CPU page basis (note: GPU page size

src/core/telemetry_session.cpp

@@ -230,6 +230,7 @@ void TelemetrySession::AddInitialInfo(Loader::AppLoader& app_loader,
              Settings::values.use_asynchronous_gpu_emulation.GetValue());
     AddField(field_type, "Renderer_UseNvdecEmulation",
              Settings::values.use_nvdec_emulation.GetValue());
+    AddField(field_type, "Renderer_AccelerateASTC", Settings::values.accelerate_astc.GetValue());
     AddField(field_type, "Renderer_UseVsync", Settings::values.use_vsync.GetValue());
     AddField(field_type, "Renderer_UseAssemblyShaders",
              Settings::values.use_assembly_shaders.GetValue());

src/input_common/CMakeLists.txt

@@ -71,8 +71,7 @@ if (ENABLE_SDL2)
     target_compile_definitions(input_common PRIVATE HAVE_SDL2)
 endif()
 
-target_include_directories(input_common SYSTEM PRIVATE ${LIBUSB_INCLUDE_DIR})
-target_link_libraries(input_common PRIVATE ${LIBUSB_LIBRARIES})
+target_link_libraries(input_common PRIVATE usb)
 
 create_target_directory_groups(input_common)
 target_link_libraries(input_common PUBLIC core PRIVATE common Boost::boost)

src/tests/CMakeLists.txt

@@ -2,6 +2,7 @@ add_executable(tests
     common/bit_field.cpp
     common/cityhash.cpp
     common/fibers.cpp
+    common/host_memory.cpp
     common/param_package.cpp
     common/ring_buffer.cpp
     core/core_timing.cpp

src/tests/common/host_memory.cpp

@@ -0,0 +1,183 @@
+// Copyright 2021 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <catch2/catch.hpp>
+
+#include "common/host_memory.h"
+
+using Common::HostMemory;
+
+static constexpr size_t VIRTUAL_SIZE = 1ULL << 39;
+static constexpr size_t BACKING_SIZE = 4ULL * 1024 * 1024 * 1024;
+
+TEST_CASE("HostMemory: Initialize and deinitialize", "[common]") {
+    { HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE); }
+    { HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE); }
+}
+
+TEST_CASE("HostMemory: Simple map", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x5000, 0x8000, 0x1000);
+
+    volatile u8* const data = mem.VirtualBasePointer() + 0x5000;
+    data[0] = 50;
+    REQUIRE(data[0] == 50);
+}
+
+TEST_CASE("HostMemory: Simple mirror map", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x5000, 0x3000, 0x2000);
+    mem.Map(0x8000, 0x4000, 0x1000);
+
+    volatile u8* const mirror_a = mem.VirtualBasePointer() + 0x5000;
+    volatile u8* const mirror_b = mem.VirtualBasePointer() + 0x8000;
+    mirror_b[0] = 76;
+    REQUIRE(mirror_a[0x1000] == 76);
+}
+
+TEST_CASE("HostMemory: Simple unmap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x5000, 0x3000, 0x2000);
+
+    volatile u8* const data = mem.VirtualBasePointer() + 0x5000;
+    data[75] = 50;
+    REQUIRE(data[75] == 50);
+
+    mem.Unmap(0x5000, 0x2000);
+}
+
+TEST_CASE("HostMemory: Simple unmap and remap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x5000, 0x3000, 0x2000);
+
+    volatile u8* const data = mem.VirtualBasePointer() + 0x5000;
+    data[0] = 50;
+    REQUIRE(data[0] == 50);
+
+    mem.Unmap(0x5000, 0x2000);
+
+    mem.Map(0x5000, 0x3000, 0x2000);
+    REQUIRE(data[0] == 50);
+
+    mem.Map(0x7000, 0x2000, 0x5000);
+    REQUIRE(data[0x3000] == 50);
+}
+
+TEST_CASE("HostMemory: Nieche allocation", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x0000, 0, 0x20000);
+    mem.Unmap(0x0000, 0x4000);
+    mem.Map(0x1000, 0, 0x2000);
+    mem.Map(0x3000, 0, 0x1000);
+    mem.Map(0, 0, 0x1000);
+}
+
+TEST_CASE("HostMemory: Full unmap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x8000, 0, 0x4000);
+    mem.Unmap(0x8000, 0x4000);
+    mem.Map(0x6000, 0, 0x16000);
+}
+
+TEST_CASE("HostMemory: Right out of bounds unmap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x0000, 0, 0x4000);
+    mem.Unmap(0x2000, 0x4000);
+    mem.Map(0x2000, 0x80000, 0x4000);
+}
+
+TEST_CASE("HostMemory: Left out of bounds unmap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x8000, 0, 0x4000);
+    mem.Unmap(0x6000, 0x4000);
+    mem.Map(0x8000, 0, 0x2000);
+}
+
+TEST_CASE("HostMemory: Multiple placeholder unmap", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x0000, 0, 0x4000);
+    mem.Map(0x4000, 0, 0x1b000);
+    mem.Unmap(0x3000, 0x1c000);
+    mem.Map(0x3000, 0, 0x20000);
+}
+
+TEST_CASE("HostMemory: Unmap between placeholders", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x0000, 0, 0x4000);
+    mem.Map(0x4000, 0, 0x4000);
+    mem.Unmap(0x2000, 0x4000);
+    mem.Map(0x2000, 0, 0x4000);
+}
+
+TEST_CASE("HostMemory: Unmap to origin", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0, 0x4000);
+    mem.Map(0x8000, 0, 0x4000);
+    mem.Unmap(0x4000, 0x4000);
+    mem.Map(0, 0, 0x4000);
+    mem.Map(0x4000, 0, 0x4000);
+}
+
+TEST_CASE("HostMemory: Unmap to right", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0, 0x4000);
+    mem.Map(0x8000, 0, 0x4000);
+    mem.Unmap(0x8000, 0x4000);
+    mem.Map(0x8000, 0, 0x4000);
+}
+
+TEST_CASE("HostMemory: Partial right unmap check bindings", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0x10000, 0x4000);
+
+    volatile u8* const ptr = mem.VirtualBasePointer() + 0x4000;
+    ptr[0x1000] = 17;
+
+    mem.Unmap(0x6000, 0x2000);
+
+    REQUIRE(ptr[0x1000] == 17);
+}
+
+TEST_CASE("HostMemory: Partial left unmap check bindings", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0x10000, 0x4000);
+
+    volatile u8* const ptr = mem.VirtualBasePointer() + 0x4000;
+    ptr[0x3000] = 19;
+    ptr[0x3fff] = 12;
+
+    mem.Unmap(0x4000, 0x2000);
+
+    REQUIRE(ptr[0x3000] == 19);
+    REQUIRE(ptr[0x3fff] == 12);
+}
+
+TEST_CASE("HostMemory: Partial middle unmap check bindings", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0x10000, 0x4000);
+
+    volatile u8* const ptr = mem.VirtualBasePointer() + 0x4000;
+    ptr[0x0000] = 19;
+    ptr[0x3fff] = 12;
+
+    mem.Unmap(0x1000, 0x2000);
+
+    REQUIRE(ptr[0x0000] == 19);
+    REQUIRE(ptr[0x3fff] == 12);
+}
+
+TEST_CASE("HostMemory: Partial sparse middle unmap and check bindings", "[common]") {
+    HostMemory mem(BACKING_SIZE, VIRTUAL_SIZE);
+    mem.Map(0x4000, 0x10000, 0x2000);
+    mem.Map(0x6000, 0x20000, 0x2000);
+
+    volatile u8* const ptr = mem.VirtualBasePointer() + 0x4000;
+    ptr[0x0000] = 19;
+    ptr[0x3fff] = 12;
+
+    mem.Unmap(0x5000, 0x2000);
+
+    REQUIRE(ptr[0x0000] == 19);
+    REQUIRE(ptr[0x3fff] == 12);
+}

src/video_core/CMakeLists.txt

@@ -237,6 +237,7 @@ add_library(video_core STATIC
     texture_cache/util.cpp
     texture_cache/util.h
     textures/astc.h
+    textures/astc.cpp
     textures/decoders.cpp
     textures/decoders.h
     textures/texture.cpp

src/video_core/buffer_cache/buffer_base.h

@@ -476,6 +476,9 @@ private:
                     current_size = 0;
                     on_going = false;
                 }
+                if (empty_bits == PAGES_PER_WORD) {
+                    break;
+                }
                 page += empty_bits;
 
                 const int continuous_bits = std::countr_one(word >> page);

src/video_core/gpu_thread.cpp

@@ -99,25 +99,13 @@ void ThreadManager::FlushRegion(VAddr addr, u64 size) {
         PushCommand(FlushRegionCommand(addr, size));
         return;
     }
-
-    // Asynchronous GPU mode
-    switch (Settings::values.gpu_accuracy.GetValue()) {
-    case Settings::GPUAccuracy::Normal:
-        PushCommand(FlushRegionCommand(addr, size));
-        break;
-    case Settings::GPUAccuracy::High:
-        // TODO(bunnei): Is this right? Preserving existing behavior for now
-        break;
-    case Settings::GPUAccuracy::Extreme: {
-        auto& gpu = system.GPU();
-        u64 fence = gpu.RequestFlush(addr, size);
-        PushCommand(GPUTickCommand(), true);
-        ASSERT(fence <= gpu.CurrentFlushRequestFence());
-        break;
-    }
-    default:
-        UNIMPLEMENTED_MSG("Unsupported gpu_accuracy {}", Settings::values.gpu_accuracy.GetValue());
+    if (!Settings::IsGPULevelExtreme()) {
+        return;
     }
+    auto& gpu = system.GPU();
+    u64 fence = gpu.RequestFlush(addr, size);
+    PushCommand(GPUTickCommand(), true);
+    ASSERT(fence <= gpu.CurrentFlushRequestFence());
 }
 
 void ThreadManager::InvalidateRegion(VAddr addr, u64 size) {

src/video_core/host_shaders/astc_decoder.comp

@@ -763,7 +763,7 @@ void ComputeEndpoints(out uvec4 ep1, out uvec4 ep2, uint color_endpoint_mode) {
     case 1: {
         READ_UINT_VALUES(2)
         uint L0 = (v[0] >> 2) | (v[1] & 0xC0);
-        uint L1 = max(L0 + (v[1] & 0x3F), 0xFFU);
+        uint L1 = min(L0 + (v[1] & 0x3F), 0xFFU);
         ep1 = uvec4(0xFF, L0, L0, L0);
         ep2 = uvec4(0xFF, L1, L1, L1);
         break;

src/video_core/rasterizer_accelerated.cpp

@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <atomic>
+
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/div_ceil.h"
@@ -10,35 +12,59 @@
 
 namespace VideoCore {
 
-RasterizerAccelerated::RasterizerAccelerated(Core::Memory::Memory& cpu_memory_)
-    : cpu_memory{cpu_memory_} {}
+using namespace Core::Memory;
+
+RasterizerAccelerated::RasterizerAccelerated(Memory& cpu_memory_) : cpu_memory{cpu_memory_} {}
 
 RasterizerAccelerated::~RasterizerAccelerated() = default;
 
 void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
-    const auto page_end = Common::DivCeil(addr + size, Core::Memory::PAGE_SIZE);
-    for (auto page = addr >> Core::Memory::PAGE_BITS; page != page_end; ++page) {
-        auto& count = cached_pages.at(page >> 2).Count(page);
+    u64 uncache_begin = 0;
+    u64 cache_begin = 0;
+    u64 uncache_bytes = 0;
+    u64 cache_bytes = 0;
+
+    std::atomic_thread_fence(std::memory_order_acquire);
+    const u64 page_end = Common::DivCeil(addr + size, PAGE_SIZE);
+    for (u64 page = addr >> PAGE_BITS; page != page_end; ++page) {
+        std::atomic_uint16_t& count = cached_pages.at(page >> 2).Count(page);
 
         if (delta > 0) {
-            ASSERT_MSG(count < UINT16_MAX, "Count may overflow!");
+            ASSERT_MSG(count.load(std::memory_order::relaxed) < UINT16_MAX, "Count may overflow!");
         } else if (delta < 0) {
-            ASSERT_MSG(count > 0, "Count may underflow!");
+            ASSERT_MSG(count.load(std::memory_order::relaxed) > 0, "Count may underflow!");
         } else {
-            ASSERT_MSG(true, "Delta must be non-zero!");
+            ASSERT_MSG(false, "Delta must be non-zero!");
         }
 
         // Adds or subtracts 1, as count is a unsigned 8-bit value
-        count += static_cast<u16>(delta);
+        count.fetch_add(static_cast<u16>(delta), std::memory_order_release);
 
         // Assume delta is either -1 or 1
-        if (count == 0) {
-            cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
-                                                  Core::Memory::PAGE_SIZE, false);
-        } else if (count == 1 && delta > 0) {
-            cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
-                                                  Core::Memory::PAGE_SIZE, true);
+        if (count.load(std::memory_order::relaxed) == 0) {
+            if (uncache_bytes == 0) {
+                uncache_begin = page;
+            }
+            uncache_bytes += PAGE_SIZE;
+        } else if (uncache_bytes > 0) {
+            cpu_memory.RasterizerMarkRegionCached(uncache_begin << PAGE_BITS, uncache_bytes, false);
+            uncache_bytes = 0;
         }
+        if (count.load(std::memory_order::relaxed) == 1 && delta > 0) {
+            if (cache_bytes == 0) {
+                cache_begin = page;
+            }
+            cache_bytes += PAGE_SIZE;
+        } else if (cache_bytes > 0) {
+            cpu_memory.RasterizerMarkRegionCached(cache_begin << PAGE_BITS, cache_bytes, true);
+            cache_bytes = 0;
+        }
+    }
+    if (uncache_bytes > 0) {
+        cpu_memory.RasterizerMarkRegionCached(uncache_begin << PAGE_BITS, uncache_bytes, false);
+    }
+    if (cache_bytes > 0) {
+        cpu_memory.RasterizerMarkRegionCached(cache_begin << PAGE_BITS, cache_bytes, true);
     }
 }
 

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -9,6 +9,8 @@
 
 #include <glad/glad.h>
 
+#include "common/settings.h"
+
 #include "video_core/renderer_opengl/gl_device.h"
 #include "video_core/renderer_opengl/gl_shader_manager.h"
 #include "video_core/renderer_opengl/gl_state_tracker.h"
@@ -307,7 +309,9 @@ void ApplySwizzle(GLuint handle, PixelFormat format, std::array<SwizzleSource, 4
 
 [[nodiscard]] bool CanBeAccelerated(const TextureCacheRuntime& runtime,
                                     const VideoCommon::ImageInfo& info) {
-    return !runtime.HasNativeASTC() && IsPixelFormatASTC(info.format);
+    if (IsPixelFormatASTC(info.format)) {
+        return !runtime.HasNativeASTC() && Settings::values.accelerate_astc.GetValue();
+    }
     // Disable other accelerated uploads for now as they don't implement swizzled uploads
     return false;
     switch (info.type) {

src/video_core/renderer_vulkan/vk_texture_cache.cpp

@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "common/bit_cast.h"
+#include "common/settings.h"
 
 #include "video_core/engines/fermi_2d.h"
 #include "video_core/renderer_vulkan/blit_image.h"
@@ -828,7 +829,11 @@ Image::Image(TextureCacheRuntime& runtime, const ImageInfo& info_, GPUVAddr gpu_
         commit = runtime.memory_allocator.Commit(buffer, MemoryUsage::DeviceLocal);
     }
     if (IsPixelFormatASTC(info.format) && !runtime.device.IsOptimalAstcSupported()) {
-        flags |= VideoCommon::ImageFlagBits::AcceleratedUpload;
+        if (Settings::values.accelerate_astc.GetValue()) {
+            flags |= VideoCommon::ImageFlagBits::AcceleratedUpload;
+        } else {
+            flags |= VideoCommon::ImageFlagBits::Converted;
+        }
     }
     if (runtime.device.HasDebuggingToolAttached()) {
         if (image) {

src/video_core/texture_cache/util.cpp

@@ -47,6 +47,7 @@
 #include "video_core/texture_cache/formatter.h"
 #include "video_core/texture_cache/samples_helper.h"
 #include "video_core/texture_cache/util.h"
+#include "video_core/textures/astc.h"
 #include "video_core/textures/decoders.h"
 
 namespace VideoCommon {
@@ -647,6 +648,9 @@ u32 CalculateLayerSize(const ImageInfo& info) noexcept {
 }
 
 LevelArray CalculateMipLevelOffsets(const ImageInfo& info) noexcept {
+    if (info.type == ImageType::Linear) {
+        return {};
+    }
     ASSERT(info.resources.levels <= static_cast<s32>(MAX_MIP_LEVELS));
     const LevelInfo level_info = MakeLevelInfo(info);
     LevelArray offsets{};
@@ -881,8 +885,16 @@ void ConvertImage(std::span<const u8> input, const ImageInfo& info, std::span<u8
         ASSERT(copy.image_extent == mip_size);
         ASSERT(copy.buffer_row_length == Common::AlignUp(mip_size.width, tile_size.width));
         ASSERT(copy.buffer_image_height == Common::AlignUp(mip_size.height, tile_size.height));
-        DecompressBC4(input.subspan(copy.buffer_offset), copy.image_extent,
-                      output.subspan(output_offset));
+        if (IsPixelFormatASTC(info.format)) {
+            ASSERT(copy.image_extent.depth == 1);
+            Tegra::Texture::ASTC::Decompress(input.subspan(copy.buffer_offset),
+                                             copy.image_extent.width, copy.image_extent.height,
+                                             copy.image_subresource.num_layers, tile_size.width,
+                                             tile_size.height, output.subspan(output_offset));
+        } else {
+            DecompressBC4(input.subspan(copy.buffer_offset), copy.image_extent,
+                          output.subspan(output_offset));
+        }
         copy.buffer_offset = output_offset;
         copy.buffer_row_length = mip_size.width;
         copy.buffer_image_height = mip_size.height;

src/video_core/textures/astc.h

@@ -129,4 +129,7 @@ struct AstcBufferData {
     decltype(REPLICATE_BYTE_TO_16_TABLE) replicate_byte_to_16 = REPLICATE_BYTE_TO_16_TABLE;
 } constexpr ASTC_BUFFER_DATA;
 
+void Decompress(std::span<const uint8_t> data, uint32_t width, uint32_t height, uint32_t depth,
+                uint32_t block_width, uint32_t block_height, std::span<uint8_t> output);
+
 } // namespace Tegra::Texture::ASTC

src/yuzu/configuration/config.cpp

@@ -756,6 +756,8 @@ void Config::ReadCpuValues() {
                       QStringLiteral("cpuopt_unsafe_reduce_fp_error"), true);
     ReadSettingGlobal(Settings::values.cpuopt_unsafe_inaccurate_nan,
                       QStringLiteral("cpuopt_unsafe_inaccurate_nan"), true);
+    ReadSettingGlobal(Settings::values.cpuopt_unsafe_fastmem_check,
+                      QStringLiteral("cpuopt_unsafe_fastmem_check"), true);
 
     if (global) {
         Settings::values.cpuopt_page_tables =
@@ -774,6 +776,8 @@ void Config::ReadCpuValues() {
             ReadSetting(QStringLiteral("cpuopt_misc_ir"), true).toBool();
         Settings::values.cpuopt_reduce_misalign_checks =
             ReadSetting(QStringLiteral("cpuopt_reduce_misalign_checks"), true).toBool();
+        Settings::values.cpuopt_fastmem =
+            ReadSetting(QStringLiteral("cpuopt_fastmem"), true).toBool();
     }
 
     qt_config->endGroup();
@@ -803,6 +807,7 @@ void Config::ReadRendererValues() {
                       QStringLiteral("use_asynchronous_gpu_emulation"), true);
     ReadSettingGlobal(Settings::values.use_nvdec_emulation, QStringLiteral("use_nvdec_emulation"),
                       true);
+    ReadSettingGlobal(Settings::values.accelerate_astc, QStringLiteral("accelerate_astc"), true);
     ReadSettingGlobal(Settings::values.use_vsync, QStringLiteral("use_vsync"), true);
     ReadSettingGlobal(Settings::values.use_assembly_shaders, QStringLiteral("use_assembly_shaders"),
                       false);
@@ -1332,6 +1337,8 @@ void Config::SaveCpuValues() {
                        Settings::values.cpuopt_unsafe_reduce_fp_error, true);
     WriteSettingGlobal(QStringLiteral("cpuopt_unsafe_inaccurate_nan"),
                        Settings::values.cpuopt_unsafe_inaccurate_nan, true);
+    WriteSettingGlobal(QStringLiteral("cpuopt_unsafe_fastmem_check"),
+                       Settings::values.cpuopt_unsafe_fastmem_check, true);
 
     if (global) {
         WriteSetting(QStringLiteral("cpuopt_page_tables"), Settings::values.cpuopt_page_tables,
@@ -1348,6 +1355,7 @@ void Config::SaveCpuValues() {
         WriteSetting(QStringLiteral("cpuopt_misc_ir"), Settings::values.cpuopt_misc_ir, true);
         WriteSetting(QStringLiteral("cpuopt_reduce_misalign_checks"),
                      Settings::values.cpuopt_reduce_misalign_checks, true);
+        WriteSetting(QStringLiteral("cpuopt_fastmem"), Settings::values.cpuopt_fastmem, true);
     }
 
     qt_config->endGroup();
@@ -1381,6 +1389,7 @@ void Config::SaveRendererValues() {
                        Settings::values.use_asynchronous_gpu_emulation, true);
     WriteSettingGlobal(QStringLiteral("use_nvdec_emulation"), Settings::values.use_nvdec_emulation,
                        true);
+    WriteSettingGlobal(QStringLiteral("accelerate_astc"), Settings::values.accelerate_astc, true);
     WriteSettingGlobal(QStringLiteral("use_vsync"), Settings::values.use_vsync, true);
     WriteSettingGlobal(QStringLiteral("use_assembly_shaders"),
                        Settings::values.use_assembly_shaders, false);

src/yuzu/configuration/configure_cpu.cpp

@@ -35,12 +35,15 @@ void ConfigureCpu::SetConfiguration() {
     ui->cpuopt_unsafe_unfuse_fma->setEnabled(runtime_lock);
     ui->cpuopt_unsafe_reduce_fp_error->setEnabled(runtime_lock);
     ui->cpuopt_unsafe_inaccurate_nan->setEnabled(runtime_lock);
+    ui->cpuopt_unsafe_fastmem_check->setEnabled(runtime_lock);
 
     ui->cpuopt_unsafe_unfuse_fma->setChecked(Settings::values.cpuopt_unsafe_unfuse_fma.GetValue());
     ui->cpuopt_unsafe_reduce_fp_error->setChecked(
         Settings::values.cpuopt_unsafe_reduce_fp_error.GetValue());
     ui->cpuopt_unsafe_inaccurate_nan->setChecked(
         Settings::values.cpuopt_unsafe_inaccurate_nan.GetValue());
+    ui->cpuopt_unsafe_fastmem_check->setChecked(
+        Settings::values.cpuopt_unsafe_fastmem_check.GetValue());
 
     if (Settings::IsConfiguringGlobal()) {
         ui->accuracy->setCurrentIndex(static_cast<int>(Settings::values.cpu_accuracy.GetValue()));
@@ -84,6 +87,9 @@ void ConfigureCpu::ApplyConfiguration() {
     ConfigurationShared::ApplyPerGameSetting(&Settings::values.cpuopt_unsafe_inaccurate_nan,
                                              ui->cpuopt_unsafe_inaccurate_nan,
                                              cpuopt_unsafe_inaccurate_nan);
+    ConfigurationShared::ApplyPerGameSetting(&Settings::values.cpuopt_unsafe_fastmem_check,
+                                             ui->cpuopt_unsafe_fastmem_check,
+                                             cpuopt_unsafe_fastmem_check);
 
     if (Settings::IsConfiguringGlobal()) {
         // Guard if during game and set to game-specific value
@@ -134,4 +140,7 @@ void ConfigureCpu::SetupPerGameUI() {
     ConfigurationShared::SetColoredTristate(ui->cpuopt_unsafe_inaccurate_nan,
                                             Settings::values.cpuopt_unsafe_inaccurate_nan,
                                             cpuopt_unsafe_inaccurate_nan);
+    ConfigurationShared::SetColoredTristate(ui->cpuopt_unsafe_fastmem_check,
+                                            Settings::values.cpuopt_unsafe_fastmem_check,
+                                            cpuopt_unsafe_fastmem_check);
 }

src/yuzu/configuration/configure_cpu.h

@@ -41,4 +41,5 @@ private:
     ConfigurationShared::CheckState cpuopt_unsafe_unfuse_fma;
     ConfigurationShared::CheckState cpuopt_unsafe_reduce_fp_error;
     ConfigurationShared::CheckState cpuopt_unsafe_inaccurate_nan;
+    ConfigurationShared::CheckState cpuopt_unsafe_fastmem_check;
 };

src/yuzu/configuration/configure_cpu.ui

@@ -123,6 +123,18 @@
           </property>
          </widget>
         </item>
+        <item>
+         <widget class="QCheckBox" name="cpuopt_unsafe_fastmem_check">
+          <property name="toolTip">
+           <string>
+            &lt;div&gt;This option improves speed by eliminating a safety check before every memory read/write in guest. Disabling it may allow a game to read/write the emulator's memory.&lt;/div&gt;
+           </string>
+          </property>
+          <property name="text">
+           <string>Disable address space checks</string>
+          </property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>

src/yuzu/configuration/configure_cpu_debug.cpp

@@ -39,6 +39,8 @@ void ConfigureCpuDebug::SetConfiguration() {
     ui->cpuopt_misc_ir->setChecked(Settings::values.cpuopt_misc_ir);
     ui->cpuopt_reduce_misalign_checks->setEnabled(runtime_lock);
     ui->cpuopt_reduce_misalign_checks->setChecked(Settings::values.cpuopt_reduce_misalign_checks);
+    ui->cpuopt_fastmem->setEnabled(runtime_lock);
+    ui->cpuopt_fastmem->setChecked(Settings::values.cpuopt_fastmem);
 }
 
 void ConfigureCpuDebug::ApplyConfiguration() {
@@ -50,6 +52,7 @@ void ConfigureCpuDebug::ApplyConfiguration() {
     Settings::values.cpuopt_const_prop = ui->cpuopt_const_prop->isChecked();
     Settings::values.cpuopt_misc_ir = ui->cpuopt_misc_ir->isChecked();
     Settings::values.cpuopt_reduce_misalign_checks = ui->cpuopt_reduce_misalign_checks->isChecked();
+    Settings::values.cpuopt_fastmem = ui->cpuopt_fastmem->isChecked();
 }
 
 void ConfigureCpuDebug::changeEvent(QEvent* event) {

src/yuzu/configuration/configure_cpu_debug.ui

@@ -34,7 +34,7 @@
             <br>
             If you're not sure what these do, keep all of these enabled.
             <br>
-            These settings only take effect when CPU Accuracy is "Debug Mode".
+            These settings, when disabled, only take effect when CPU Accuracy is "Debug Mode".
             </div>
            </string>
           </property>
@@ -139,6 +139,20 @@
           </property>
          </widget>
         </item>
+        <item>
+         <widget class="QCheckBox" name="cpuopt_fastmem">
+          <property name="text">
+           <string>Enable Host MMU Emulation</string>
+          </property>
+          <property name="toolTip">
+           <string>
+            &lt;div style="white-space: nowrap"&gt;This optimization speeds up memory accesses by the guest program.&lt;/div&gt;
+            &lt;div style="white-space: nowrap"&gt;Enabling it causes guest memory reads/writes to be done directly into memory and make use of Host's MMU.&lt;/div&gt;
+            &lt;div style="white-space: nowrap"&gt;Disabling this forces all memory accesses to use Software MMU Emulation.&lt;/div&gt;
+           </string>
+          </property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>

src/yuzu/configuration/configure_graphics.cpp

@@ -70,10 +70,12 @@ void ConfigureGraphics::SetConfiguration() {
     ui->use_asynchronous_gpu_emulation->setEnabled(runtime_lock);
     ui->use_disk_shader_cache->setEnabled(runtime_lock);
     ui->use_nvdec_emulation->setEnabled(runtime_lock);
+    ui->accelerate_astc->setEnabled(runtime_lock);
     ui->use_disk_shader_cache->setChecked(Settings::values.use_disk_shader_cache.GetValue());
     ui->use_asynchronous_gpu_emulation->setChecked(
         Settings::values.use_asynchronous_gpu_emulation.GetValue());
     ui->use_nvdec_emulation->setChecked(Settings::values.use_nvdec_emulation.GetValue());
+    ui->accelerate_astc->setChecked(Settings::values.accelerate_astc.GetValue());
 
     if (Settings::IsConfiguringGlobal()) {
         ui->api->setCurrentIndex(static_cast<int>(Settings::values.renderer_backend.GetValue()));
@@ -118,6 +120,8 @@ void ConfigureGraphics::ApplyConfiguration() {
                                              use_asynchronous_gpu_emulation);
     ConfigurationShared::ApplyPerGameSetting(&Settings::values.use_nvdec_emulation,
                                              ui->use_nvdec_emulation, use_nvdec_emulation);
+    ConfigurationShared::ApplyPerGameSetting(&Settings::values.accelerate_astc, ui->accelerate_astc,
+                                             accelerate_astc);
 
     if (Settings::IsConfiguringGlobal()) {
         // Guard if during game and set to game-specific value
@@ -254,6 +258,7 @@ void ConfigureGraphics::SetupPerGameUI() {
         ui->use_asynchronous_gpu_emulation->setEnabled(
             Settings::values.use_asynchronous_gpu_emulation.UsingGlobal());
         ui->use_nvdec_emulation->setEnabled(Settings::values.use_nvdec_emulation.UsingGlobal());
+        ui->accelerate_astc->setEnabled(Settings::values.accelerate_astc.UsingGlobal());
         ui->use_disk_shader_cache->setEnabled(Settings::values.use_disk_shader_cache.UsingGlobal());
         ui->bg_button->setEnabled(Settings::values.bg_red.UsingGlobal());
 
@@ -269,6 +274,8 @@ void ConfigureGraphics::SetupPerGameUI() {
         ui->use_disk_shader_cache, Settings::values.use_disk_shader_cache, use_disk_shader_cache);
     ConfigurationShared::SetColoredTristate(
         ui->use_nvdec_emulation, Settings::values.use_nvdec_emulation, use_nvdec_emulation);
+    ConfigurationShared::SetColoredTristate(ui->accelerate_astc, Settings::values.accelerate_astc,
+                                            accelerate_astc);
     ConfigurationShared::SetColoredTristate(ui->use_asynchronous_gpu_emulation,
                                             Settings::values.use_asynchronous_gpu_emulation,
                                             use_asynchronous_gpu_emulation);

src/yuzu/configuration/configure_graphics.h

@@ -47,6 +47,7 @@ private:
     QColor bg_color;
 
     ConfigurationShared::CheckState use_nvdec_emulation;
+    ConfigurationShared::CheckState accelerate_astc;
     ConfigurationShared::CheckState use_disk_shader_cache;
     ConfigurationShared::CheckState use_asynchronous_gpu_emulation;
 

src/yuzu/configuration/configure_graphics.ui

@@ -104,6 +104,13 @@
           </property>
          </widget>
         </item>
+        <item>
+          <widget class="QCheckBox" name="accelerate_astc">
+            <property name="text">
+              <string>Accelerate ASTC texture decoding</string>
+            </property>
+          </widget>
+        </item>
         <item>
          <widget class="QWidget" name="fullscreen_mode_layout" native="true">
           <layout class="QHBoxLayout" name="horizontalLayout_1">

src/yuzu/configuration/configure_input_player.cpp

@@ -1395,7 +1395,8 @@ void ConfigureInputPlayer::keyPressEvent(QKeyEvent* event) {
 
 void ConfigureInputPlayer::CreateProfile() {
     const auto profile_name =
-        LimitableInputDialog::GetText(this, tr("New Profile"), tr("Enter a profile name:"), 1, 20);
+        LimitableInputDialog::GetText(this, tr("New Profile"), tr("Enter a profile name:"), 1, 20,
+                                      LimitableInputDialog::InputLimiter::Filesystem);
 
     if (profile_name.isEmpty()) {
         return;

src/yuzu/configuration/configure_ui.cpp

@@ -17,17 +17,30 @@
 
 namespace {
 constexpr std::array default_icon_sizes{
-    std::make_pair(0, QT_TR_NOOP("None")),
-    std::make_pair(32, QT_TR_NOOP("Small (32x32)")),
-    std::make_pair(64, QT_TR_NOOP("Standard (64x64)")),
-    std::make_pair(128, QT_TR_NOOP("Large (128x128)")),
-    std::make_pair(256, QT_TR_NOOP("Full Size (256x256)")),
+    std::make_pair(0, QT_TRANSLATE_NOOP("ConfigureUI", "None")),
+    std::make_pair(32, QT_TRANSLATE_NOOP("ConfigureUI", "Small (32x32)")),
+    std::make_pair(64, QT_TRANSLATE_NOOP("ConfigureUI", "Standard (64x64)")),
+    std::make_pair(128, QT_TRANSLATE_NOOP("ConfigureUI", "Large (128x128)")),
+    std::make_pair(256, QT_TRANSLATE_NOOP("ConfigureUI", "Full Size (256x256)")),
 };
 
+// clang-format off
 constexpr std::array row_text_names{
-    QT_TR_NOOP("Filename"),   QT_TR_NOOP("Filetype"), QT_TR_NOOP("Title ID"),
-    QT_TR_NOOP("Title Name"), QT_TR_NOOP("None"),
+    QT_TRANSLATE_NOOP("ConfigureUI", "Filename"),
+    QT_TRANSLATE_NOOP("ConfigureUI", "Filetype"),
+    QT_TRANSLATE_NOOP("ConfigureUI", "Title ID"),
+    QT_TRANSLATE_NOOP("ConfigureUI", "Title Name"),
+    QT_TRANSLATE_NOOP("ConfigureUI", "None"),
 };
+// clang-format on
+
+QString GetTranslatedIconSize(size_t index) {
+    return QCoreApplication::translate("ConfigureUI", default_icon_sizes[index].second);
+}
+
+QString GetTranslatedRowTextName(size_t index) {
+    return QCoreApplication::translate("ConfigureUI", row_text_names[index]);
+}
 } // Anonymous namespace
 
 ConfigureUi::ConfigureUi(QWidget* parent) : QWidget(parent), ui(new Ui::ConfigureUi) {
@@ -121,11 +134,11 @@ void ConfigureUi::RetranslateUI() {
     ui->retranslateUi(this);
 
     for (int i = 0; i < ui->icon_size_combobox->count(); i++) {
-        ui->icon_size_combobox->setItemText(i, tr(default_icon_sizes[i].second));
+        ui->icon_size_combobox->setItemText(i, GetTranslatedIconSize(static_cast<size_t>(i)));
     }
 
     for (int i = 0; i < ui->row_1_text_combobox->count(); i++) {
-        const QString name = tr(row_text_names[i]);
+        const QString name = GetTranslatedRowTextName(static_cast<size_t>(i));
 
         ui->row_1_text_combobox->setItemText(i, name);
         ui->row_2_text_combobox->setItemText(i, name);
@@ -152,8 +165,9 @@ void ConfigureUi::InitializeLanguageComboBox() {
 }
 
 void ConfigureUi::InitializeIconSizeComboBox() {
-    for (const auto& size : default_icon_sizes) {
-        ui->icon_size_combobox->addItem(QString::fromUtf8(size.second), size.first);
+    for (size_t i = 0; i < default_icon_sizes.size(); i++) {
+        const auto size = default_icon_sizes[i].first;
+        ui->icon_size_combobox->addItem(GetTranslatedIconSize(i), size);
     }
 }
 
@@ -170,7 +184,7 @@ void ConfigureUi::UpdateFirstRowComboBox(bool init) {
     ui->row_1_text_combobox->clear();
 
     for (std::size_t i = 0; i < row_text_names.size(); i++) {
-        const QString row_text_name = QString::fromUtf8(row_text_names[i]);
+        const QString row_text_name = GetTranslatedRowTextName(i);
         ui->row_1_text_combobox->addItem(row_text_name, QVariant::fromValue(i));
     }
 
@@ -189,7 +203,7 @@ void ConfigureUi::UpdateSecondRowComboBox(bool init) {
     ui->row_2_text_combobox->clear();
 
     for (std::size_t i = 0; i < row_text_names.size(); ++i) {
-        const QString row_text_name = QString::fromUtf8(row_text_names[i]);
+        const QString row_text_name = GetTranslatedRowTextName(i);
         ui->row_2_text_combobox->addItem(row_text_name, QVariant::fromValue(i));
     }
 

src/yuzu/main.cpp

@@ -1946,6 +1946,18 @@ void GMainWindow::OnGameListDumpRomFS(u64 program_id, const std::string& game_pa
     const auto full = res == selections.constFirst();
     const auto entry_size = CalculateRomFSEntrySize(extracted, full);
 
+    // The minimum required space is the size of the extracted RomFS + 1 GiB
+    const auto minimum_free_space = extracted->GetSize() + 0x40000000;
+
+    if (full && Common::FS::GetFreeSpaceSize(path) < minimum_free_space) {
+        QMessageBox::warning(this, tr("RomFS Extraction Failed!"),
+                             tr("There is not enough free space at %1 to extract the RomFS. Please "
+                                "free up space or select a different dump directory at "
+                                "Emulation > Configure > System > Filesystem > Dump Root")
+                                 .arg(QString::fromStdString(path)));
+        return;
+    }
+
     QProgressDialog progress(tr("Extracting RomFS..."), tr("Cancel"), 0,
                              static_cast<s32>(entry_size), this);
     progress.setWindowModality(Qt::WindowModal);

src/yuzu/util/limitable_input_dialog.cpp

@@ -21,11 +21,13 @@ void LimitableInputDialog::CreateUI() {
 
     text_label = new QLabel(this);
     text_entry = new QLineEdit(this);
+    text_label_invalid = new QLabel(this);
     buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
 
     auto* const layout = new QVBoxLayout;
     layout->addWidget(text_label);
     layout->addWidget(text_entry);
+    layout->addWidget(text_label_invalid);
     layout->addWidget(buttons);
 
     setLayout(layout);
@@ -37,18 +39,36 @@ void LimitableInputDialog::ConnectEvents() {
 }
 
 QString LimitableInputDialog::GetText(QWidget* parent, const QString& title, const QString& text,
-                                      int min_character_limit, int max_character_limit) {
+                                      int min_character_limit, int max_character_limit,
+                                      InputLimiter limit_type) {
     Q_ASSERT(min_character_limit <= max_character_limit);
 
     LimitableInputDialog dialog{parent};
     dialog.setWindowTitle(title);
     dialog.text_label->setText(text);
     dialog.text_entry->setMaxLength(max_character_limit);
+    dialog.text_label_invalid->show();
+
+    switch (limit_type) {
+    case InputLimiter::Filesystem:
+        dialog.invalid_characters = QStringLiteral("<>:;\"/\\|,.!?*");
+        break;
+    default:
+        dialog.invalid_characters.clear();
+        dialog.text_label_invalid->hide();
+        break;
+    }
+    dialog.text_label_invalid->setText(
+        tr("The text can't contain any of the following characters:\n%1")
+            .arg(dialog.invalid_characters));
 
     auto* const ok_button = dialog.buttons->button(QDialogButtonBox::Ok);
     ok_button->setEnabled(false);
-    connect(dialog.text_entry, &QLineEdit::textEdited, [&](const QString& new_text) {
-        ok_button->setEnabled(new_text.length() >= min_character_limit);
+    connect(dialog.text_entry, &QLineEdit::textEdited, [&] {
+        if (!dialog.invalid_characters.isEmpty()) {
+            dialog.RemoveInvalidCharacters();
+        }
+        ok_button->setEnabled(dialog.text_entry->text().length() >= min_character_limit);
     });
 
     if (dialog.exec() != QDialog::Accepted) {
@@ -57,3 +77,15 @@ QString LimitableInputDialog::GetText(QWidget* parent, const QString& title, con
 
     return dialog.text_entry->text();
 }
+
+void LimitableInputDialog::RemoveInvalidCharacters() {
+    auto cpos = text_entry->cursorPosition();
+    for (int i = 0; i < text_entry->text().length(); i++) {
+        if (invalid_characters.contains(text_entry->text().at(i))) {
+            text_entry->setText(text_entry->text().remove(i, 1));
+            i--;
+            cpos--;
+        }
+    }
+    text_entry->setCursorPosition(cpos);
+}

src/yuzu/util/limitable_input_dialog.h

@@ -18,14 +18,24 @@ public:
     explicit LimitableInputDialog(QWidget* parent = nullptr);
     ~LimitableInputDialog() override;
 
+    enum class InputLimiter {
+        None,
+        Filesystem,
+    };
+
     static QString GetText(QWidget* parent, const QString& title, const QString& text,
-                           int min_character_limit, int max_character_limit);
+                           int min_character_limit, int max_character_limit,
+                           InputLimiter limit_type = InputLimiter::None);
 
 private:
     void CreateUI();
     void ConnectEvents();
 
+    void RemoveInvalidCharacters();
+    QString invalid_characters;
+
     QLabel* text_label;
     QLineEdit* text_entry;
+    QLabel* text_label_invalid;
     QDialogButtonBox* buttons;
 };

src/yuzu_cmd/config.cpp

@@ -447,8 +447,10 @@ void Config::ReadValues() {
         sdl2_config->GetBoolean("Renderer", "use_assembly_shaders", true));
     Settings::values.use_asynchronous_shaders.SetValue(
         sdl2_config->GetBoolean("Renderer", "use_asynchronous_shaders", false));
-    Settings::values.use_asynchronous_shaders.SetValue(
-        sdl2_config->GetBoolean("Renderer", "use_asynchronous_shaders", false));
+    Settings::values.use_nvdec_emulation.SetValue(
+        sdl2_config->GetBoolean("Renderer", "use_nvdec_emulation", true));
+    Settings::values.accelerate_astc.SetValue(
+        sdl2_config->GetBoolean("Renderer", "accelerate_astc", true));
     Settings::values.use_fast_gpu_time.SetValue(
         sdl2_config->GetBoolean("Renderer", "use_fast_gpu_time", true));
 

src/yuzu_cmd/default_ini.h

@@ -150,6 +150,10 @@ cpuopt_misc_ir =
 # 0: Disabled, 1 (default): Enabled
 cpuopt_reduce_misalign_checks =
 
+# Enable Host MMU Emulation (faster guest memory access)
+# 0: Disabled, 1 (default): Enabled
+cpuopt_fastmem =
+
 [Renderer]
 # Which backend API to use.
 # 0 (default): OpenGL, 1: Vulkan
@@ -190,6 +194,14 @@ use_assembly_shaders =
 # 0 (default): Off, 1: On
 use_asynchronous_shaders =
 
+# Enable NVDEC emulation.
+# 0: Off, 1 (default): On
+use_nvdec_emulation =
+
+# Accelerate ASTC texture decoding.
+# 0: Off, 1 (default): On
+accelerate_astc =
+
 # Turns on the frame limiter, which will limit frames output to the target game speed
 # 0: Off, 1: On (default)
 use_frame_limit =

src/yuzu_cmd/emu_window/emu_window_sdl2_gl.cpp

@@ -32,17 +32,17 @@
 
 class SDLGLContext : public Core::Frontend::GraphicsContext {
 public:
-    explicit SDLGLContext() {
-        // create a hidden window to make the shared context against
-        window = SDL_CreateWindow(NULL, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0,
-                                  SDL_WINDOW_HIDDEN | SDL_WINDOW_OPENGL);
+    explicit SDLGLContext(SDL_Window* window_) : window{window_} {
         context = SDL_GL_CreateContext(window);
     }
 
     ~SDLGLContext() {
         DoneCurrent();
         SDL_GL_DeleteContext(context);
-        SDL_DestroyWindow(window);
+    }
+
+    void SwapBuffers() override {
+        SDL_GL_SwapWindow(window);
     }
 
     void MakeCurrent() override {
@@ -114,9 +114,6 @@ EmuWindow_SDL2_GL::EmuWindow_SDL2_GL(InputCommon::InputSubsystem* input_subsyste
         exit(1);
     }
 
-    dummy_window = SDL_CreateWindow(NULL, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0,
-                                    SDL_WINDOW_HIDDEN | SDL_WINDOW_OPENGL);
-
     SetWindowIcon();
 
     if (fullscreen) {
@@ -159,5 +156,5 @@ EmuWindow_SDL2_GL::~EmuWindow_SDL2_GL() {
 }
 
 std::unique_ptr<Core::Frontend::GraphicsContext> EmuWindow_SDL2_GL::CreateSharedContext() const {
-    return std::make_unique<SDLGLContext>();
+    return std::make_unique<SDLGLContext>(render_window);
 }

src/yuzu_cmd/emu_window/emu_window_sdl2_gl.h

@@ -20,9 +20,6 @@ public:
     std::unique_ptr<Core::Frontend::GraphicsContext> CreateSharedContext() const override;
 
 private:
-    /// Fake hidden window for the core context
-    SDL_Window* dummy_window{};
-
     /// Whether the GPU and driver supports the OpenGL extension required
     bool SupportsRequiredGLExtensions();