Implement glDepthRangeIndexeddNV

ci: Add clang build scripts

.ci/scripts/clang/docker.sh

@@ -0,0 +1,18 @@
+#!/bin/bash -ex
+
+# Exit on error, rather than continuing with the rest of the script.
+set -e
+
+cd /yuzu
+
+ccache -s
+
+mkdir build || true && cd build
+cmake .. -DDISPLAY_VERSION=$1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/lib/ccache/clang -DCMAKE_CXX_COMPILER=/usr/lib/ccache/clang++ -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"} -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DUSE_DISCORD_PRESENCE=ON -DENABLE_QT_TRANSLATION=ON -DCMAKE_INSTALL_PREFIX="/usr"
+
+make -j$(nproc)
+
+ccache -s
+
+ctest -VV -C Release
+

.ci/scripts/clang/exec.sh

@@ -0,0 +1,8 @@
+#!/bin/bash -ex
+
+mkdir -p "ccache"  || true
+chmod a+x ./.ci/scripts/clang/docker.sh
+# the UID for the container yuzu user is 1027
+sudo chown -R 1027 ./
+docker run -e ENABLE_COMPATIBILITY_REPORTING -e CCACHE_DIR=/yuzu/ccache -v $(pwd):/yuzu yuzuemu/build-environments:linux-fresh /bin/bash /yuzu/.ci/scripts/clang/docker.sh $1
+sudo chown -R $UID ./

.ci/scripts/clang/upload.sh

@@ -0,0 +1,20 @@
+#!/bin/bash -ex
+
+. .ci/scripts/common/pre-upload.sh
+
+REV_NAME="yuzu-linux-${GITDATE}-${GITREV}"
+ARCHIVE_NAME="${REV_NAME}.tar.xz"
+COMPRESSION_FLAGS="-cJvf"
+
+if [ "${RELEASE_NAME}" = "mainline" ]; then
+    DIR_NAME="${REV_NAME}"
+else
+    DIR_NAME="${REV_NAME}_${RELEASE_NAME}"
+fi
+
+mkdir "$DIR_NAME"
+
+cp build/bin/yuzu-cmd "$DIR_NAME"
+cp build/bin/yuzu "$DIR_NAME"
+
+. .ci/scripts/common/post-upload.sh

.ci/templates/build-standard.yml

@@ -12,6 +12,9 @@ jobs:
       windows:
         BuildSuffix: 'windows-mingw'
         ScriptFolder: 'windows'
+      clang:
+        BuildSuffix: 'clang'
+        ScriptFolder: 'clang'
       linux:
         BuildSuffix: 'linux'
         ScriptFolder: 'linux'
@@ -24,4 +27,4 @@ jobs:
     parameters:
       artifactSource: 'false'
       cache: $(parameters.cache)
-      version: $(parameters.version)
+      version: $(parameters.version)

.gitmodules

@@ -37,6 +37,6 @@
 [submodule "opus"]
 	path = externals/opus/opus
 	url = https://github.com/xiph/opus.git
-[submodule "externals/ffmpeg"]
+[submodule "ffmpeg"]
 	path = externals/ffmpeg
 	url = https://git.ffmpeg.org/ffmpeg.git

CMakeLists.txt

@@ -504,7 +504,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
         endif()
     else() # WIN32
         # Use yuzu FFmpeg binaries
-        set(FFmpeg_EXT_NAME "ffmpeg-4.2.1")
+        set(FFmpeg_EXT_NAME "ffmpeg-4.3.1")
         set(FFmpeg_PATH "${CMAKE_BINARY_DIR}/externals/${FFmpeg_EXT_NAME}")
         download_bundled_external("ffmpeg/" ${FFmpeg_EXT_NAME} "")
         set(FFmpeg_FOUND YES)

CMakeModules/CopyYuzuFFmpegDeps.cmake

@@ -1,10 +1,6 @@
 function(copy_yuzu_FFmpeg_deps target_dir)
     include(WindowsCopyFiles)
     set(DLL_DEST "${CMAKE_BINARY_DIR}/bin/$<CONFIG>/")
-    windows_copy_files(${target_dir} ${FFmpeg_DLL_DIR} ${DLL_DEST}
-        avcodec-58.dll
-        avutil-56.dll
-        swresample-3.dll
-        swscale-5.dll
-    )
+    file(READ "${FFmpeg_PATH}/requirements.txt" FFmpeg_REQUIRED_DLLS)
+    windows_copy_files(${target_dir} ${FFmpeg_DLL_DIR} ${DLL_DEST} ${FFmpeg_REQUIRED_DLLS})
 endfunction(copy_yuzu_FFmpeg_deps)

dist/qt_themes/colorful_dark/icons/index.theme

@@ -1,7 +1,7 @@
 [Icon Theme]
 Name=colorful_dark
 Comment=Colorful theme (Dark style)
-Inherits=default
+Inherits=colorful
 Directories=16x16
  
 [16x16]

dist/qt_themes/colorful_midnight_blue/icons/index.theme

@@ -1,7 +1,7 @@
 [Icon Theme]
 Name=colorful_midnight_blue
 Comment=Colorful theme (Midnight Blue style)
-Inherits=default
+Inherits=colorful
 Directories=16x16
 
 [16x16]

dist/qt_themes/qdarkstyle_midnight_blue/style.qss

@@ -1257,10 +1257,6 @@ QComboBox::item:alternate {
   background: #19232D;
 }
 
-QComboBox::item:checked {
-  font-weight: bold;
-}
-
 QComboBox::item:selected {
   border: 0px solid transparent;
 }

externals/glad/include/glad/glad.h

@@ -5156,6 +5156,9 @@ GLAPI PFNGLDEPTHRANGEARRAYVPROC glad_glDepthRangeArrayv;
 typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDPROC)(GLuint index, GLdouble n, GLdouble f);
 GLAPI PFNGLDEPTHRANGEINDEXEDPROC glad_glDepthRangeIndexed;
 #define glDepthRangeIndexed glad_glDepthRangeIndexed
+typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDDNVPROC)(GLuint index, GLdouble n, GLdouble f);
+GLAPI PFNGLDEPTHRANGEINDEXEDDNVPROC glad_glDepthRangeIndexeddNV;
+#define glDepthRangeIndexeddNV glad_glDepthRangeIndexeddNV
 typedef void (APIENTRYP PFNGLGETFLOATI_VPROC)(GLenum target, GLuint index, GLfloat *data);
 GLAPI PFNGLGETFLOATI_VPROC glad_glGetFloati_v;
 #define glGetFloati_v glad_glGetFloati_v

externals/glad/src/glad.c

@@ -1044,6 +1044,7 @@ PFNGLDEPTHMASKPROC glad_glDepthMask = NULL;
 PFNGLDEPTHRANGEPROC glad_glDepthRange = NULL;
 PFNGLDEPTHRANGEARRAYVPROC glad_glDepthRangeArrayv = NULL;
 PFNGLDEPTHRANGEINDEXEDPROC glad_glDepthRangeIndexed = NULL;
+PFNGLDEPTHRANGEINDEXEDDNVPROC glad_glDepthRangeIndexeddNV = NULL;
 PFNGLDEPTHRANGEFPROC glad_glDepthRangef = NULL;
 PFNGLDETACHSHADERPROC glad_glDetachShader = NULL;
 PFNGLDISABLEPROC glad_glDisable = NULL;
@@ -7971,6 +7972,7 @@ static void load_GL_NV_depth_buffer_float(GLADloadproc load) {
 	glad_glDepthRangedNV = (PFNGLDEPTHRANGEDNVPROC)load("glDepthRangedNV");
 	glad_glClearDepthdNV = (PFNGLCLEARDEPTHDNVPROC)load("glClearDepthdNV");
 	glad_glDepthBoundsdNV = (PFNGLDEPTHBOUNDSDNVPROC)load("glDepthBoundsdNV");
+	glad_glDepthRangeIndexeddNV = (PFNGLDEPTHRANGEINDEXEDDNVPROC)load("glDepthRangeIndexeddNV");
 }
 static void load_GL_NV_draw_texture(GLADloadproc load) {
 	if(!GLAD_GL_NV_draw_texture) return;

src/audio_core/CMakeLists.txt

@@ -15,6 +15,8 @@ add_library(audio_core STATIC
     command_generator.cpp
     command_generator.h
     common.h
+    delay_line.cpp
+    delay_line.h
     effect_context.cpp
     effect_context.h
     info_updater.cpp

src/audio_core/command_generator.cpp

@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cmath>
+#include <numbers>
 #include "audio_core/algorithm/interpolate.h"
 #include "audio_core/command_generator.h"
 #include "audio_core/effect_context.h"
@@ -13,6 +15,20 @@ namespace AudioCore {
 namespace {
 constexpr std::size_t MIX_BUFFER_SIZE = 0x3f00;
 constexpr std::size_t SCALED_MIX_BUFFER_SIZE = MIX_BUFFER_SIZE << 15ULL;
+using DelayLineTimes = std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT>;
+
+constexpr DelayLineTimes FDN_MIN_DELAY_LINE_TIMES{5.0f, 6.0f, 13.0f, 14.0f};
+constexpr DelayLineTimes FDN_MAX_DELAY_LINE_TIMES{45.704f, 82.782f, 149.94f, 271.58f};
+constexpr DelayLineTimes DECAY0_MAX_DELAY_LINE_TIMES{17.0f, 13.0f, 9.0f, 7.0f};
+constexpr DelayLineTimes DECAY1_MAX_DELAY_LINE_TIMES{19.0f, 11.0f, 10.0f, 6.0f};
+constexpr std::array<f32, AudioCommon::I3DL2REVERB_TAPS> EARLY_TAP_TIMES{
+    0.017136f, 0.059154f, 0.161733f, 0.390186f, 0.425262f, 0.455411f, 0.689737f,
+    0.745910f, 0.833844f, 0.859502f, 0.000000f, 0.075024f, 0.168788f, 0.299901f,
+    0.337443f, 0.371903f, 0.599011f, 0.716741f, 0.817859f, 0.851664f};
+constexpr std::array<f32, AudioCommon::I3DL2REVERB_TAPS> EARLY_GAIN{
+    0.67096f, 0.61027f, 1.0f,     0.35680f, 0.68361f, 0.65978f, 0.51939f,
+    0.24712f, 0.45945f, 0.45021f, 0.64196f, 0.54879f, 0.92925f, 0.38270f,
+    0.72867f, 0.69794f, 0.5464f,  0.24563f, 0.45214f, 0.44042f};
 
 template <std::size_t N>
 void ApplyMix(s32* output, const s32* input, s32 gain, s32 sample_count) {
@@ -65,6 +81,154 @@ s32 ApplyMixDepop(s32* output, s32 first_sample, s32 delta, s32 sample_count) {
     }
 }
 
+float Pow10(float x) {
+    if (x >= 0.0f) {
+        return 1.0f;
+    } else if (x <= -5.3f) {
+        return 0.0f;
+    }
+    return std::pow(10.0f, x);
+}
+
+float SinD(float degrees) {
+    return std::sin(degrees * std::numbers::pi_v<float> / 180.0f);
+}
+
+float CosD(float degrees) {
+    return std::cos(degrees * std::numbers::pi_v<float> / 180.0f);
+}
+
+float ToFloat(s32 sample) {
+    return static_cast<float>(sample) / 65536.f;
+}
+
+s32 ToS32(float sample) {
+    constexpr auto min = -8388608.0f;
+    constexpr auto max = 8388607.f;
+    float rescaled_sample = sample * 65536.0f;
+    if (rescaled_sample < min) {
+        rescaled_sample = min;
+    }
+    if (rescaled_sample > max) {
+        rescaled_sample = max;
+    }
+    return static_cast<s32>(rescaled_sample);
+}
+
+constexpr std::array<std::size_t, 20> REVERB_TAP_INDEX_1CH{0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                                                           0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+constexpr std::array<std::size_t, 20> REVERB_TAP_INDEX_2CH{0, 0, 0, 1, 1, 1, 1, 0, 0, 0,
+                                                           1, 1, 1, 0, 0, 0, 0, 1, 1, 1};
+
+constexpr std::array<std::size_t, 20> REVERB_TAP_INDEX_4CH{0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
+                                                           1, 1, 1, 0, 0, 0, 0, 3, 3, 3};
+
+constexpr std::array<std::size_t, 20> REVERB_TAP_INDEX_6CH{4, 0, 0, 1, 1, 1, 1, 2, 2, 2,
+                                                           1, 1, 1, 0, 0, 0, 0, 3, 3, 3};
+
+template <std::size_t CHANNEL_COUNT>
+void ApplyReverbGeneric(I3dl2ReverbState& state,
+                        const std::array<const s32*, AudioCommon::MAX_CHANNEL_COUNT>& input,
+                        const std::array<s32*, AudioCommon::MAX_CHANNEL_COUNT>& output,
+                        s32 sample_count) {
+
+    auto GetTapLookup = []() {
+        if constexpr (CHANNEL_COUNT == 1) {
+            return REVERB_TAP_INDEX_1CH;
+        } else if constexpr (CHANNEL_COUNT == 2) {
+            return REVERB_TAP_INDEX_2CH;
+        } else if constexpr (CHANNEL_COUNT == 4) {
+            return REVERB_TAP_INDEX_4CH;
+        } else if constexpr (CHANNEL_COUNT == 6) {
+            return REVERB_TAP_INDEX_6CH;
+        }
+    };
+
+    const auto& tap_index_lut = GetTapLookup();
+    for (s32 sample = 0; sample < sample_count; sample++) {
+        std::array<f32, CHANNEL_COUNT> out_samples{};
+        std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> fsamp{};
+        std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> mixed{};
+        std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> osamp{};
+
+        // Mix everything into a single sample
+        s32 temp_mixed_sample = 0;
+        for (std::size_t i = 0; i < CHANNEL_COUNT; i++) {
+            temp_mixed_sample += input[i][sample];
+        }
+        const auto current_sample = ToFloat(temp_mixed_sample);
+        const auto early_tap = state.early_delay_line.TapOut(state.early_to_late_taps);
+
+        for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_TAPS; i++) {
+            const auto tapped_samp =
+                state.early_delay_line.TapOut(state.early_tap_steps[i]) * EARLY_GAIN[i];
+            out_samples[tap_index_lut[i]] += tapped_samp;
+
+            if constexpr (CHANNEL_COUNT == 6) {
+                // handle lfe
+                out_samples[5] += tapped_samp;
+            }
+        }
+
+        state.lowpass_0 = current_sample * state.lowpass_2 + state.lowpass_0 * state.lowpass_1;
+        state.early_delay_line.Tick(state.lowpass_0);
+
+        for (std::size_t i = 0; i < CHANNEL_COUNT; i++) {
+            out_samples[i] *= state.early_gain;
+        }
+
+        // Two channel seems to apply a latet gain, we require to save this
+        f32 filter{};
+        for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+            filter = state.fdn_delay_line[i].GetOutputSample();
+            const auto computed = filter * state.lpf_coefficients[0][i] + state.shelf_filter[i];
+            state.shelf_filter[i] =
+                filter * state.lpf_coefficients[1][i] + computed * state.lpf_coefficients[2][i];
+            fsamp[i] = computed;
+        }
+
+        // Mixing matrix
+        mixed[0] = fsamp[1] + fsamp[2];
+        mixed[1] = -fsamp[0] - fsamp[3];
+        mixed[2] = fsamp[0] - fsamp[3];
+        mixed[3] = fsamp[1] - fsamp[2];
+
+        if constexpr (CHANNEL_COUNT == 2) {
+            for (auto& mix : mixed) {
+                mix *= (filter * state.late_gain);
+            }
+        }
+
+        for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+            const auto late = early_tap * state.late_gain;
+            osamp[i] = state.decay_delay_line0[i].Tick(late + mixed[i]);
+            osamp[i] = state.decay_delay_line1[i].Tick(osamp[i]);
+            state.fdn_delay_line[i].Tick(osamp[i]);
+        }
+
+        if constexpr (CHANNEL_COUNT == 1) {
+            output[0][sample] = ToS32(state.dry_gain * ToFloat(input[0][sample]) +
+                                      (out_samples[0] + osamp[0] + osamp[1]));
+        } else if constexpr (CHANNEL_COUNT == 2 || CHANNEL_COUNT == 4) {
+            for (std::size_t i = 0; i < CHANNEL_COUNT; i++) {
+                output[i][sample] =
+                    ToS32(state.dry_gain * ToFloat(input[i][sample]) + (out_samples[i] + osamp[i]));
+            }
+        } else if constexpr (CHANNEL_COUNT == 6) {
+            const auto temp_center = state.center_delay_line.Tick(0.5f * (osamp[2] - osamp[3]));
+            for (std::size_t i = 0; i < 4; i++) {
+                output[i][sample] =
+                    ToS32(state.dry_gain * ToFloat(input[i][sample]) + (out_samples[i] + osamp[i]));
+            }
+            output[4][sample] =
+                ToS32(state.dry_gain * ToFloat(input[4][sample]) + (out_samples[4] + temp_center));
+            output[5][sample] =
+                ToS32(state.dry_gain * ToFloat(input[5][sample]) + (out_samples[5] + osamp[3]));
+        }
+    }
+}
+
 } // namespace
 
 CommandGenerator::CommandGenerator(AudioCommon::AudioRendererParameter& worker_params_,
@@ -271,11 +435,10 @@ void CommandGenerator::GenerateBiquadFilterCommandForVoice(ServerVoiceInfo& voic
         }
 
         // Generate biquad filter
-        //        GenerateBiquadFilterCommand(mix_buffer_count, biquad_filter,
-        //        dsp_state.biquad_filter_state,
-        //                                    mix_buffer_count + channel, mix_buffer_count +
-        //                                    channel, worker_params.sample_count,
-        //                                    voice_info.GetInParams().node_id);
+        // GenerateBiquadFilterCommand(mix_buffer_count, biquad_filter,
+        // dsp_state.biquad_filter_state,
+        //                            mix_buffer_count + channel, mix_buffer_count + channel,
+        //                            worker_params.sample_count, voice_info.GetInParams().node_id);
     }
 }
 
@@ -376,21 +539,54 @@ void CommandGenerator::GenerateEffectCommand(ServerMixInfo& mix_info) {
 
 void CommandGenerator::GenerateI3dl2ReverbEffectCommand(s32 mix_buffer_offset, EffectBase* info,
                                                         bool enabled) {
-    if (!enabled) {
+    auto* reverb = dynamic_cast<EffectI3dl2Reverb*>(info);
+    const auto& params = reverb->GetParams();
+    auto& state = reverb->GetState();
+    const auto channel_count = params.channel_count;
+
+    if (channel_count != 1 && channel_count != 2 && channel_count != 4 && channel_count != 6) {
         return;
     }
-    const auto& params = dynamic_cast<EffectI3dl2Reverb*>(info)->GetParams();
-    const auto channel_count = params.channel_count;
+
+    std::array<const s32*, AudioCommon::MAX_CHANNEL_COUNT> input{};
+    std::array<s32*, AudioCommon::MAX_CHANNEL_COUNT> output{};
+
+    const auto status = params.status;
     for (s32 i = 0; i < channel_count; i++) {
-        // TODO(ogniK): Actually implement reverb
-        /*
-        if (params.input[i] != params.output[i]) {
-            const auto* input = GetMixBuffer(mix_buffer_offset + params.input[i]);
-            auto* output = GetMixBuffer(mix_buffer_offset + params.output[i]);
-            ApplyMix<1>(output, input, 32768, worker_params.sample_count);
-        }*/
-        auto* output = GetMixBuffer(mix_buffer_offset + params.output[i]);
-        std::memset(output, 0, worker_params.sample_count * sizeof(s32));
+        input[i] = GetMixBuffer(mix_buffer_offset + params.input[i]);
+        output[i] = GetMixBuffer(mix_buffer_offset + params.output[i]);
+    }
+
+    if (enabled) {
+        if (status == ParameterStatus::Initialized) {
+            InitializeI3dl2Reverb(reverb->GetParams(), state, info->GetWorkBuffer());
+        } else if (status == ParameterStatus::Updating) {
+            UpdateI3dl2Reverb(reverb->GetParams(), state, false);
+        }
+    }
+
+    if (enabled) {
+        switch (channel_count) {
+        case 1:
+            ApplyReverbGeneric<1>(state, input, output, worker_params.sample_count);
+            break;
+        case 2:
+            ApplyReverbGeneric<2>(state, input, output, worker_params.sample_count);
+            break;
+        case 4:
+            ApplyReverbGeneric<4>(state, input, output, worker_params.sample_count);
+            break;
+        case 6:
+            ApplyReverbGeneric<6>(state, input, output, worker_params.sample_count);
+            break;
+        }
+    } else {
+        for (s32 i = 0; i < channel_count; i++) {
+            // Only copy if the buffer input and output do not match!
+            if ((mix_buffer_offset + params.input[i]) != (mix_buffer_offset + params.output[i])) {
+                std::memcpy(output[i], input[i], worker_params.sample_count * sizeof(s32));
+            }
+        }
     }
 }
 
@@ -528,6 +724,133 @@ s32 CommandGenerator::ReadAuxBuffer(AuxInfoDSP& recv_info, VAddr recv_buffer, u3
     return sample_count;
 }
 
+void CommandGenerator::InitializeI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbState& state,
+                                             std::vector<u8>& work_buffer) {
+    // Reset state
+    state.lowpass_0 = 0.0f;
+    state.lowpass_1 = 0.0f;
+    state.lowpass_2 = 0.0f;
+
+    state.early_delay_line.Reset();
+    state.early_tap_steps.fill(0);
+    state.early_gain = 0.0f;
+    state.late_gain = 0.0f;
+    state.early_to_late_taps = 0;
+    for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+        state.fdn_delay_line[i].Reset();
+        state.decay_delay_line0[i].Reset();
+        state.decay_delay_line1[i].Reset();
+    }
+    state.last_reverb_echo = 0.0f;
+    state.center_delay_line.Reset();
+    for (auto& coef : state.lpf_coefficients) {
+        coef.fill(0.0f);
+    }
+    state.shelf_filter.fill(0.0f);
+    state.dry_gain = 0.0f;
+
+    const auto sample_rate = info.sample_rate / 1000;
+    f32* work_buffer_ptr = reinterpret_cast<f32*>(work_buffer.data());
+
+    s32 delay_samples{};
+    for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+        delay_samples =
+            AudioCommon::CalculateDelaySamples(sample_rate, FDN_MAX_DELAY_LINE_TIMES[i]);
+        state.fdn_delay_line[i].Initialize(delay_samples, work_buffer_ptr);
+        work_buffer_ptr += delay_samples + 1;
+
+        delay_samples =
+            AudioCommon::CalculateDelaySamples(sample_rate, DECAY0_MAX_DELAY_LINE_TIMES[i]);
+        state.decay_delay_line0[i].Initialize(delay_samples, 0.0f, work_buffer_ptr);
+        work_buffer_ptr += delay_samples + 1;
+
+        delay_samples =
+            AudioCommon::CalculateDelaySamples(sample_rate, DECAY1_MAX_DELAY_LINE_TIMES[i]);
+        state.decay_delay_line1[i].Initialize(delay_samples, 0.0f, work_buffer_ptr);
+        work_buffer_ptr += delay_samples + 1;
+    }
+    delay_samples = AudioCommon::CalculateDelaySamples(sample_rate, 5.0f);
+    state.center_delay_line.Initialize(delay_samples, work_buffer_ptr);
+    work_buffer_ptr += delay_samples + 1;
+
+    delay_samples = AudioCommon::CalculateDelaySamples(sample_rate, 400.0f);
+    state.early_delay_line.Initialize(delay_samples, work_buffer_ptr);
+
+    UpdateI3dl2Reverb(info, state, true);
+}
+
+void CommandGenerator::UpdateI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbState& state,
+                                         bool should_clear) {
+
+    state.dry_gain = info.dry_gain;
+    state.shelf_filter.fill(0.0f);
+    state.lowpass_0 = 0.0f;
+    state.early_gain = Pow10(std::min(info.room + info.reflection, 5000.0f) / 2000.0f);
+    state.late_gain = Pow10(std::min(info.room + info.reverb, 5000.0f) / 2000.0f);
+
+    const auto sample_rate = info.sample_rate / 1000;
+    const f32 hf_gain = Pow10(info.room_hf / 2000.0f);
+    if (hf_gain >= 1.0f) {
+        state.lowpass_2 = 1.0f;
+        state.lowpass_1 = 0.0f;
+    } else {
+        const auto a = 1.0f - hf_gain;
+        const auto b = 2.0f * (1.0f - hf_gain * CosD(256.0f * info.hf_reference /
+                                                     static_cast<f32>(info.sample_rate)));
+        const auto c = std::sqrt(b * b - 4.0f * a * a);
+
+        state.lowpass_1 = (b - c) / (2.0f * a);
+        state.lowpass_2 = 1.0f - state.lowpass_1;
+    }
+    state.early_to_late_taps = AudioCommon::CalculateDelaySamples(
+        sample_rate, 1000.0f * (info.reflection_delay + info.reverb_delay));
+
+    state.last_reverb_echo = 0.6f * info.diffusion * 0.01f;
+    for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+        const auto length =
+            FDN_MIN_DELAY_LINE_TIMES[i] +
+            (info.density / 100.0f) * (FDN_MAX_DELAY_LINE_TIMES[i] - FDN_MIN_DELAY_LINE_TIMES[i]);
+        state.fdn_delay_line[i].SetDelay(AudioCommon::CalculateDelaySamples(sample_rate, length));
+
+        const auto delay_sample_counts = state.fdn_delay_line[i].GetDelay() +
+                                         state.decay_delay_line0[i].GetDelay() +
+                                         state.decay_delay_line1[i].GetDelay();
+
+        float a = (-60.0f * static_cast<f32>(delay_sample_counts)) /
+                  (info.decay_time * static_cast<f32>(info.sample_rate));
+        float b = a / info.hf_decay_ratio;
+        float c = CosD(128.0f * 0.5f * info.hf_reference / static_cast<f32>(info.sample_rate)) /
+                  SinD(128.0f * 0.5f * info.hf_reference / static_cast<f32>(info.sample_rate));
+        float d = Pow10((b - a) / 40.0f);
+        float e = Pow10((b + a) / 40.0f) * 0.7071f;
+
+        state.lpf_coefficients[0][i] = e * ((d * c) + 1.0f) / (c + d);
+        state.lpf_coefficients[1][i] = e * (1.0f - (d * c)) / (c + d);
+        state.lpf_coefficients[2][i] = (c - d) / (c + d);
+
+        state.decay_delay_line0[i].SetCoefficient(state.last_reverb_echo);
+        state.decay_delay_line1[i].SetCoefficient(-0.9f * state.last_reverb_echo);
+    }
+
+    if (should_clear) {
+        for (std::size_t i = 0; i < AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT; i++) {
+            state.fdn_delay_line[i].Clear();
+            state.decay_delay_line0[i].Clear();
+            state.decay_delay_line1[i].Clear();
+        }
+        state.early_delay_line.Clear();
+        state.center_delay_line.Clear();
+    }
+
+    const auto max_early_delay = state.early_delay_line.GetMaxDelay();
+    const auto reflection_time = 1000.0f * (0.0098f * info.reverb_delay + 0.02f);
+    for (std::size_t tap = 0; tap < AudioCommon::I3DL2REVERB_TAPS; tap++) {
+        const auto length = AudioCommon::CalculateDelaySamples(
+            sample_rate, 1000.0f * info.reflection_delay + reflection_time * EARLY_TAP_TIMES[tap]);
+        state.early_tap_steps[tap] = std::min(length, max_early_delay);
+    }
+}
+
 void CommandGenerator::GenerateVolumeRampCommand(float last_volume, float current_volume,
                                                  s32 channel, s32 node_id) {
     const auto last = static_cast<s32>(last_volume * 32768.0f);

src/audio_core/command_generator.h

@@ -21,6 +21,8 @@ class ServerMixInfo;
 class EffectContext;
 class EffectBase;
 struct AuxInfoDSP;
+struct I3dl2ReverbParams;
+struct I3dl2ReverbState;
 using MixVolumeBuffer = std::array<float, AudioCommon::MAX_MIX_BUFFERS>;
 
 class CommandGenerator {
@@ -80,6 +82,9 @@ private:
     s32 ReadAuxBuffer(AuxInfoDSP& recv_info, VAddr recv_buffer, u32 max_samples, s32* out_data,
                       u32 sample_count, u32 read_offset, u32 read_count);
 
+    void InitializeI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbState& state,
+                               std::vector<u8>& work_buffer);
+    void UpdateI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbState& state, bool should_clear);
     // DSP Code
     s32 DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_state, s32 sample_count,
                     s32 channel, std::size_t mix_offset);

src/audio_core/common.h

@@ -33,6 +33,29 @@ constexpr std::size_t TEMP_MIX_BASE_SIZE = 0x3f00; // TODO(ogniK): Work out this
 // and our const ends up being 0x3f04, the 4 bytes are most
 // likely the sample history
 constexpr std::size_t TOTAL_TEMP_MIX_SIZE = TEMP_MIX_BASE_SIZE + AudioCommon::MAX_SAMPLE_HISTORY;
+constexpr f32 I3DL2REVERB_MAX_LEVEL = 5000.0f;
+constexpr f32 I3DL2REVERB_MIN_REFLECTION_DURATION = 0.02f;
+constexpr std::size_t I3DL2REVERB_TAPS = 20;
+constexpr std::size_t I3DL2REVERB_DELAY_LINE_COUNT = 4;
+using Fractional = s32;
+
+template <typename T>
+constexpr Fractional ToFractional(T x) {
+    return static_cast<Fractional>(x * static_cast<T>(0x4000));
+}
+
+constexpr Fractional MultiplyFractional(Fractional lhs, Fractional rhs) {
+    return static_cast<Fractional>(static_cast<s64>(lhs) * rhs >> 14);
+}
+
+constexpr s32 FractionalToFixed(Fractional x) {
+    const auto s = x & (1 << 13);
+    return static_cast<s32>(x >> 14) + s;
+}
+
+constexpr s32 CalculateDelaySamples(s32 sample_rate_khz, float time) {
+    return FractionalToFixed(MultiplyFractional(ToFractional(sample_rate_khz), ToFractional(time)));
+}
 
 static constexpr u32 VersionFromRevision(u32_le rev) {
     // "REV7" -> 7

src/audio_core/delay_line.cpp

@@ -0,0 +1,104 @@
+#include <cstring>
+#include "audio_core/delay_line.h"
+
+namespace AudioCore {
+DelayLineBase::DelayLineBase() = default;
+DelayLineBase::~DelayLineBase() = default;
+
+void DelayLineBase::Initialize(s32 max_delay_, float* src_buffer) {
+    buffer = src_buffer;
+    buffer_end = buffer + max_delay_;
+    max_delay = max_delay_;
+    output = buffer;
+    SetDelay(max_delay_);
+    Clear();
+}
+
+void DelayLineBase::SetDelay(s32 new_delay) {
+    if (max_delay < new_delay) {
+        return;
+    }
+    delay = new_delay;
+    input = (buffer + ((output - buffer) + new_delay) % (max_delay + 1));
+}
+
+s32 DelayLineBase::GetDelay() const {
+    return delay;
+}
+
+s32 DelayLineBase::GetMaxDelay() const {
+    return max_delay;
+}
+
+f32 DelayLineBase::TapOut(s32 last_sample) {
+    const float* ptr = input - (last_sample + 1);
+    if (ptr < buffer) {
+        ptr += (max_delay + 1);
+    }
+
+    return *ptr;
+}
+
+f32 DelayLineBase::Tick(f32 sample) {
+    *(input++) = sample;
+    const auto out_sample = *(output++);
+
+    if (buffer_end < input) {
+        input = buffer;
+    }
+
+    if (buffer_end < output) {
+        output = buffer;
+    }
+
+    return out_sample;
+}
+
+float* DelayLineBase::GetInput() {
+    return input;
+}
+
+const float* DelayLineBase::GetInput() const {
+    return input;
+}
+
+f32 DelayLineBase::GetOutputSample() const {
+    return *output;
+}
+
+void DelayLineBase::Clear() {
+    std::memset(buffer, 0, sizeof(float) * max_delay);
+}
+
+void DelayLineBase::Reset() {
+    buffer = nullptr;
+    buffer_end = nullptr;
+    max_delay = 0;
+    input = nullptr;
+    output = nullptr;
+    delay = 0;
+}
+
+DelayLineAllPass::DelayLineAllPass() = default;
+DelayLineAllPass::~DelayLineAllPass() = default;
+
+void DelayLineAllPass::Initialize(u32 delay_, float coeffcient_, f32* src_buffer) {
+    DelayLineBase::Initialize(delay_, src_buffer);
+    SetCoefficient(coeffcient_);
+}
+
+void DelayLineAllPass::SetCoefficient(float coeffcient_) {
+    coefficient = coeffcient_;
+}
+
+f32 DelayLineAllPass::Tick(f32 sample) {
+    const auto temp = sample - coefficient * *output;
+    return coefficient * temp + DelayLineBase::Tick(temp);
+}
+
+void DelayLineAllPass::Reset() {
+    coefficient = 0.0f;
+    DelayLineBase::Reset();
+}
+
+} // namespace AudioCore

src/audio_core/delay_line.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include "common/common_types.h"
+
+namespace AudioCore {
+
+class DelayLineBase {
+public:
+    DelayLineBase();
+    ~DelayLineBase();
+
+    void Initialize(s32 max_delay_, float* src_buffer);
+    void SetDelay(s32 new_delay);
+    s32 GetDelay() const;
+    s32 GetMaxDelay() const;
+    f32 TapOut(s32 last_sample);
+    f32 Tick(f32 sample);
+    float* GetInput();
+    const float* GetInput() const;
+    f32 GetOutputSample() const;
+    void Clear();
+    void Reset();
+
+protected:
+    float* buffer{nullptr};
+    float* buffer_end{nullptr};
+    s32 max_delay{};
+    float* input{nullptr};
+    float* output{nullptr};
+    s32 delay{};
+};
+
+class DelayLineAllPass final : public DelayLineBase {
+public:
+    DelayLineAllPass();
+    ~DelayLineAllPass();
+
+    void Initialize(u32 delay, float coeffcient_, f32* src_buffer);
+    void SetCoefficient(float coeffcient_);
+    f32 Tick(f32 sample);
+    void Reset();
+
+private:
+    float coefficient{};
+};
+} // namespace AudioCore

src/audio_core/effect_context.cpp

@@ -90,6 +90,14 @@ s32 EffectBase::GetProcessingOrder() const {
     return processing_order;
 }
 
+std::vector<u8>& EffectBase::GetWorkBuffer() {
+    return work_buffer;
+}
+
+const std::vector<u8>& EffectBase::GetWorkBuffer() const {
+    return work_buffer;
+}
+
 EffectI3dl2Reverb::EffectI3dl2Reverb() : EffectGeneric(EffectType::I3dl2Reverb) {}
 EffectI3dl2Reverb::~EffectI3dl2Reverb() = default;
 
@@ -117,6 +125,12 @@ void EffectI3dl2Reverb::Update(EffectInfo::InParams& in_params) {
         usage = UsageState::Initialized;
         params.status = ParameterStatus::Initialized;
         skipped = in_params.buffer_address == 0 || in_params.buffer_size == 0;
+        if (!skipped) {
+            auto& cur_work_buffer = GetWorkBuffer();
+            // Has two buffers internally
+            cur_work_buffer.resize(in_params.buffer_size * 2);
+            std::fill(cur_work_buffer.begin(), cur_work_buffer.end(), 0);
+        }
     }
 }
 
@@ -129,6 +143,14 @@ void EffectI3dl2Reverb::UpdateForCommandGeneration() {
     GetParams().status = ParameterStatus::Updated;
 }
 
+I3dl2ReverbState& EffectI3dl2Reverb::GetState() {
+    return state;
+}
+
+const I3dl2ReverbState& EffectI3dl2Reverb::GetState() const {
+    return state;
+}
+
 EffectBiquadFilter::EffectBiquadFilter() : EffectGeneric(EffectType::BiquadFilter) {}
 EffectBiquadFilter::~EffectBiquadFilter() = default;
 

src/audio_core/effect_context.h

@@ -8,6 +8,7 @@
 #include <memory>
 #include <vector>
 #include "audio_core/common.h"
+#include "audio_core/delay_line.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
@@ -194,6 +195,8 @@ public:
     [[nodiscard]] bool IsEnabled() const;
     [[nodiscard]] s32 GetMixID() const;
     [[nodiscard]] s32 GetProcessingOrder() const;
+    [[nodiscard]] std::vector<u8>& GetWorkBuffer();
+    [[nodiscard]] const std::vector<u8>& GetWorkBuffer() const;
 
 protected:
     UsageState usage{UsageState::Invalid};
@@ -201,6 +204,7 @@ protected:
     s32 mix_id{};
     s32 processing_order{};
     bool enabled = false;
+    std::vector<u8> work_buffer{};
 };
 
 template <typename T>
@@ -212,7 +216,7 @@ public:
         return internal_params;
     }
 
-    const I3dl2ReverbParams& GetParams() const {
+    const T& GetParams() const {
         return internal_params;
     }
 
@@ -229,6 +233,27 @@ public:
     void UpdateForCommandGeneration() override;
 };
 
+struct I3dl2ReverbState {
+    f32 lowpass_0{};
+    f32 lowpass_1{};
+    f32 lowpass_2{};
+
+    DelayLineBase early_delay_line{};
+    std::array<u32, AudioCommon::I3DL2REVERB_TAPS> early_tap_steps{};
+    f32 early_gain{};
+    f32 late_gain{};
+
+    u32 early_to_late_taps{};
+    std::array<DelayLineBase, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> fdn_delay_line{};
+    std::array<DelayLineAllPass, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> decay_delay_line0{};
+    std::array<DelayLineAllPass, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> decay_delay_line1{};
+    f32 last_reverb_echo{};
+    DelayLineBase center_delay_line{};
+    std::array<std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT>, 3> lpf_coefficients{};
+    std::array<f32, AudioCommon::I3DL2REVERB_DELAY_LINE_COUNT> shelf_filter{};
+    f32 dry_gain{};
+};
+
 class EffectI3dl2Reverb : public EffectGeneric<I3dl2ReverbParams> {
 public:
     explicit EffectI3dl2Reverb();
@@ -237,8 +262,12 @@ public:
     void Update(EffectInfo::InParams& in_params) override;
     void UpdateForCommandGeneration() override;
 
+    I3dl2ReverbState& GetState();
+    const I3dl2ReverbState& GetState() const;
+
 private:
     bool skipped = false;
+    I3dl2ReverbState state{};
 };
 
 class EffectBiquadFilter : public EffectGeneric<BiquadFilterParams> {

src/common/CMakeLists.txt

@@ -168,7 +168,6 @@ add_library(common STATIC
     time_zone.cpp
     time_zone.h
     tree.h
-    uint128.cpp
     uint128.h
     uuid.cpp
     uuid.h

src/common/cityhash.cpp

@@ -28,8 +28,10 @@
 // compromising on hash quality.
 
 #include <algorithm>
-#include <string.h> // for memcpy and memset
-#include "cityhash.h"
+#include <cstring>
+#include <utility>
+
+#include "common/cityhash.h"
 #include "common/swap.h"
 
 // #include "config.h"
@@ -42,21 +44,17 @@
 
 using namespace std;
 
-typedef uint8_t uint8;
-typedef uint32_t uint32;
-typedef uint64_t uint64;
-
 namespace Common {
 
-static uint64 UNALIGNED_LOAD64(const char* p) {
-    uint64 result;
-    memcpy(&result, p, sizeof(result));
+static u64 unaligned_load64(const char* p) {
+    u64 result;
+    std::memcpy(&result, p, sizeof(result));
     return result;
 }
 
-static uint32 UNALIGNED_LOAD32(const char* p) {
-    uint32 result;
-    memcpy(&result, p, sizeof(result));
+static u32 unaligned_load32(const char* p) {
+    u32 result;
+    std::memcpy(&result, p, sizeof(result));
     return result;
 }
 
@@ -76,64 +74,64 @@ static uint32 UNALIGNED_LOAD32(const char* p) {
 #endif
 #endif
 
-static uint64 Fetch64(const char* p) {
-    return uint64_in_expected_order(UNALIGNED_LOAD64(p));
+static u64 Fetch64(const char* p) {
+    return uint64_in_expected_order(unaligned_load64(p));
 }
 
-static uint32 Fetch32(const char* p) {
-    return uint32_in_expected_order(UNALIGNED_LOAD32(p));
+static u32 Fetch32(const char* p) {
+    return uint32_in_expected_order(unaligned_load32(p));
 }
 
 // Some primes between 2^63 and 2^64 for various uses.
-static const uint64 k0 = 0xc3a5c85c97cb3127ULL;
-static const uint64 k1 = 0xb492b66fbe98f273ULL;
-static const uint64 k2 = 0x9ae16a3b2f90404fULL;
+static constexpr u64 k0 = 0xc3a5c85c97cb3127ULL;
+static constexpr u64 k1 = 0xb492b66fbe98f273ULL;
+static constexpr u64 k2 = 0x9ae16a3b2f90404fULL;
 
 // Bitwise right rotate.  Normally this will compile to a single
 // instruction, especially if the shift is a manifest constant.
-static uint64 Rotate(uint64 val, int shift) {
+static u64 Rotate(u64 val, int shift) {
     // Avoid shifting by 64: doing so yields an undefined result.
     return shift == 0 ? val : ((val >> shift) | (val << (64 - shift)));
 }
 
-static uint64 ShiftMix(uint64 val) {
+static u64 ShiftMix(u64 val) {
     return val ^ (val >> 47);
 }
 
-static uint64 HashLen16(uint64 u, uint64 v) {
-    return Hash128to64(uint128(u, v));
+static u64 HashLen16(u64 u, u64 v) {
+    return Hash128to64(u128{u, v});
 }
 
-static uint64 HashLen16(uint64 u, uint64 v, uint64 mul) {
+static u64 HashLen16(u64 u, u64 v, u64 mul) {
     // Murmur-inspired hashing.
-    uint64 a = (u ^ v) * mul;
+    u64 a = (u ^ v) * mul;
     a ^= (a >> 47);
-    uint64 b = (v ^ a) * mul;
+    u64 b = (v ^ a) * mul;
     b ^= (b >> 47);
     b *= mul;
     return b;
 }
 
-static uint64 HashLen0to16(const char* s, std::size_t len) {
+static u64 HashLen0to16(const char* s, size_t len) {
     if (len >= 8) {
-        uint64 mul = k2 + len * 2;
-        uint64 a = Fetch64(s) + k2;
-        uint64 b = Fetch64(s + len - 8);
-        uint64 c = Rotate(b, 37) * mul + a;
-        uint64 d = (Rotate(a, 25) + b) * mul;
+        u64 mul = k2 + len * 2;
+        u64 a = Fetch64(s) + k2;
+        u64 b = Fetch64(s + len - 8);
+        u64 c = Rotate(b, 37) * mul + a;
+        u64 d = (Rotate(a, 25) + b) * mul;
         return HashLen16(c, d, mul);
     }
     if (len >= 4) {
-        uint64 mul = k2 + len * 2;
-        uint64 a = Fetch32(s);
+        u64 mul = k2 + len * 2;
+        u64 a = Fetch32(s);
         return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul);
     }
     if (len > 0) {
-        uint8 a = s[0];
-        uint8 b = s[len >> 1];
-        uint8 c = s[len - 1];
-        uint32 y = static_cast<uint32>(a) + (static_cast<uint32>(b) << 8);
-        uint32 z = static_cast<uint32>(len) + (static_cast<uint32>(c) << 2);
+        u8 a = s[0];
+        u8 b = s[len >> 1];
+        u8 c = s[len - 1];
+        u32 y = static_cast<u32>(a) + (static_cast<u32>(b) << 8);
+        u32 z = static_cast<u32>(len) + (static_cast<u32>(c) << 2);
         return ShiftMix(y * k2 ^ z * k0) * k2;
     }
     return k2;
@@ -141,22 +139,21 @@ static uint64 HashLen0to16(const char* s, std::size_t len) {
 
 // This probably works well for 16-byte strings as well, but it may be overkill
 // in that case.
-static uint64 HashLen17to32(const char* s, std::size_t len) {
-    uint64 mul = k2 + len * 2;
-    uint64 a = Fetch64(s) * k1;
-    uint64 b = Fetch64(s + 8);
-    uint64 c = Fetch64(s + len - 8) * mul;
-    uint64 d = Fetch64(s + len - 16) * k2;
+static u64 HashLen17to32(const char* s, size_t len) {
+    u64 mul = k2 + len * 2;
+    u64 a = Fetch64(s) * k1;
+    u64 b = Fetch64(s + 8);
+    u64 c = Fetch64(s + len - 8) * mul;
+    u64 d = Fetch64(s + len - 16) * k2;
     return HashLen16(Rotate(a + b, 43) + Rotate(c, 30) + d, a + Rotate(b + k2, 18) + c, mul);
 }
 
 // Return a 16-byte hash for 48 bytes.  Quick and dirty.
 // Callers do best to use "random-looking" values for a and b.
-static pair<uint64, uint64> WeakHashLen32WithSeeds(uint64 w, uint64 x, uint64 y, uint64 z, uint64 a,
-                                                   uint64 b) {
+static pair<u64, u64> WeakHashLen32WithSeeds(u64 w, u64 x, u64 y, u64 z, u64 a, u64 b) {
     a += w;
     b = Rotate(b + a + z, 21);
-    uint64 c = a;
+    u64 c = a;
     a += x;
     a += y;
     b += Rotate(a, 44);
@@ -164,34 +161,34 @@ static pair<uint64, uint64> WeakHashLen32WithSeeds(uint64 w, uint64 x, uint64 y,
 }
 
 // Return a 16-byte hash for s[0] ... s[31], a, and b.  Quick and dirty.
-static pair<uint64, uint64> WeakHashLen32WithSeeds(const char* s, uint64 a, uint64 b) {
+static pair<u64, u64> WeakHashLen32WithSeeds(const char* s, u64 a, u64 b) {
     return WeakHashLen32WithSeeds(Fetch64(s), Fetch64(s + 8), Fetch64(s + 16), Fetch64(s + 24), a,
                                   b);
 }
 
 // Return an 8-byte hash for 33 to 64 bytes.
-static uint64 HashLen33to64(const char* s, std::size_t len) {
-    uint64 mul = k2 + len * 2;
-    uint64 a = Fetch64(s) * k2;
-    uint64 b = Fetch64(s + 8);
-    uint64 c = Fetch64(s + len - 24);
-    uint64 d = Fetch64(s + len - 32);
-    uint64 e = Fetch64(s + 16) * k2;
-    uint64 f = Fetch64(s + 24) * 9;
-    uint64 g = Fetch64(s + len - 8);
-    uint64 h = Fetch64(s + len - 16) * mul;
-    uint64 u = Rotate(a + g, 43) + (Rotate(b, 30) + c) * 9;
-    uint64 v = ((a + g) ^ d) + f + 1;
-    uint64 w = swap64((u + v) * mul) + h;
-    uint64 x = Rotate(e + f, 42) + c;
-    uint64 y = (swap64((v + w) * mul) + g) * mul;
-    uint64 z = e + f + c;
+static u64 HashLen33to64(const char* s, size_t len) {
+    u64 mul = k2 + len * 2;
+    u64 a = Fetch64(s) * k2;
+    u64 b = Fetch64(s + 8);
+    u64 c = Fetch64(s + len - 24);
+    u64 d = Fetch64(s + len - 32);
+    u64 e = Fetch64(s + 16) * k2;
+    u64 f = Fetch64(s + 24) * 9;
+    u64 g = Fetch64(s + len - 8);
+    u64 h = Fetch64(s + len - 16) * mul;
+    u64 u = Rotate(a + g, 43) + (Rotate(b, 30) + c) * 9;
+    u64 v = ((a + g) ^ d) + f + 1;
+    u64 w = swap64((u + v) * mul) + h;
+    u64 x = Rotate(e + f, 42) + c;
+    u64 y = (swap64((v + w) * mul) + g) * mul;
+    u64 z = e + f + c;
     a = swap64((x + z) * mul + y) + b;
     b = ShiftMix((z + a) * mul + d + h) * mul;
     return b + x;
 }
 
-uint64 CityHash64(const char* s, std::size_t len) {
+u64 CityHash64(const char* s, size_t len) {
     if (len <= 32) {
         if (len <= 16) {
             return HashLen0to16(s, len);
@@ -204,15 +201,15 @@ uint64 CityHash64(const char* s, std::size_t len) {
 
     // For strings over 64 bytes we hash the end first, and then as we
     // loop we keep 56 bytes of state: v, w, x, y, and z.
-    uint64 x = Fetch64(s + len - 40);
-    uint64 y = Fetch64(s + len - 16) + Fetch64(s + len - 56);
-    uint64 z = HashLen16(Fetch64(s + len - 48) + len, Fetch64(s + len - 24));
-    pair<uint64, uint64> v = WeakHashLen32WithSeeds(s + len - 64, len, z);
-    pair<uint64, uint64> w = WeakHashLen32WithSeeds(s + len - 32, y + k1, x);
+    u64 x = Fetch64(s + len - 40);
+    u64 y = Fetch64(s + len - 16) + Fetch64(s + len - 56);
+    u64 z = HashLen16(Fetch64(s + len - 48) + len, Fetch64(s + len - 24));
+    pair<u64, u64> v = WeakHashLen32WithSeeds(s + len - 64, len, z);
+    pair<u64, u64> w = WeakHashLen32WithSeeds(s + len - 32, y + k1, x);
     x = x * k1 + Fetch64(s);
 
     // Decrease len to the nearest multiple of 64, and operate on 64-byte chunks.
-    len = (len - 1) & ~static_cast<std::size_t>(63);
+    len = (len - 1) & ~static_cast<size_t>(63);
     do {
         x = Rotate(x + y + v.first + Fetch64(s + 8), 37) * k1;
         y = Rotate(y + v.second + Fetch64(s + 48), 42) * k1;
@@ -229,21 +226,21 @@ uint64 CityHash64(const char* s, std::size_t len) {
                      HashLen16(v.second, w.second) + x);
 }
 
-uint64 CityHash64WithSeed(const char* s, std::size_t len, uint64 seed) {
+u64 CityHash64WithSeed(const char* s, size_t len, u64 seed) {
     return CityHash64WithSeeds(s, len, k2, seed);
 }
 
-uint64 CityHash64WithSeeds(const char* s, std::size_t len, uint64 seed0, uint64 seed1) {
+u64 CityHash64WithSeeds(const char* s, size_t len, u64 seed0, u64 seed1) {
     return HashLen16(CityHash64(s, len) - seed0, seed1);
 }
 
 // A subroutine for CityHash128().  Returns a decent 128-bit hash for strings
 // of any length representable in signed long.  Based on City and Murmur.
-static uint128 CityMurmur(const char* s, std::size_t len, uint128 seed) {
-    uint64 a = Uint128Low64(seed);
-    uint64 b = Uint128High64(seed);
-    uint64 c = 0;
-    uint64 d = 0;
+static u128 CityMurmur(const char* s, size_t len, u128 seed) {
+    u64 a = seed[0];
+    u64 b = seed[1];
+    u64 c = 0;
+    u64 d = 0;
     signed long l = static_cast<long>(len) - 16;
     if (l <= 0) { // len <= 16
         a = ShiftMix(a * k1) * k1;
@@ -266,20 +263,20 @@ static uint128 CityMurmur(const char* s, std::size_t len, uint128 seed) {
     }
     a = HashLen16(a, c);
     b = HashLen16(d, b);
-    return uint128(a ^ b, HashLen16(b, a));
+    return u128{a ^ b, HashLen16(b, a)};
 }
 
-uint128 CityHash128WithSeed(const char* s, std::size_t len, uint128 seed) {
+u128 CityHash128WithSeed(const char* s, size_t len, u128 seed) {
     if (len < 128) {
         return CityMurmur(s, len, seed);
     }
 
     // We expect len >= 128 to be the common case.  Keep 56 bytes of state:
     // v, w, x, y, and z.
-    pair<uint64, uint64> v, w;
-    uint64 x = Uint128Low64(seed);
-    uint64 y = Uint128High64(seed);
-    uint64 z = len * k1;
+    pair<u64, u64> v, w;
+    u64 x = seed[0];
+    u64 y = seed[1];
+    u64 z = len * k1;
     v.first = Rotate(y ^ k1, 49) * k1 + Fetch64(s);
     v.second = Rotate(v.first, 42) * k1 + Fetch64(s + 8);
     w.first = Rotate(y + z, 35) * k1 + x;
@@ -313,7 +310,7 @@ uint128 CityHash128WithSeed(const char* s, std::size_t len, uint128 seed) {
     w.first *= 9;
     v.first *= k0;
     // If 0 < len < 128, hash up to 4 chunks of 32 bytes each from the end of s.
-    for (std::size_t tail_done = 0; tail_done < len;) {
+    for (size_t tail_done = 0; tail_done < len;) {
         tail_done += 32;
         y = Rotate(x + y, 42) * k0 + v.second;
         w.first += Fetch64(s + len - tail_done + 16);
@@ -328,13 +325,12 @@ uint128 CityHash128WithSeed(const char* s, std::size_t len, uint128 seed) {
     // different 56-byte-to-8-byte hashes to get a 16-byte final result.
     x = HashLen16(x, v.first);
     y = HashLen16(y + z, w.first);
-    return uint128(HashLen16(x + v.second, w.second) + y, HashLen16(x + w.second, y + v.second));
+    return u128{HashLen16(x + v.second, w.second) + y, HashLen16(x + w.second, y + v.second)};
 }
 
-uint128 CityHash128(const char* s, std::size_t len) {
-    return len >= 16
-               ? CityHash128WithSeed(s + 16, len - 16, uint128(Fetch64(s), Fetch64(s + 8) + k0))
-               : CityHash128WithSeed(s, len, uint128(k0, k1));
+u128 CityHash128(const char* s, size_t len) {
+    return len >= 16 ? CityHash128WithSeed(s + 16, len - 16, u128{Fetch64(s), Fetch64(s + 8) + k0})
+                     : CityHash128WithSeed(s, len, u128{k0, k1});
 }
 
 } // namespace Common

src/common/cityhash.h

@@ -61,50 +61,38 @@
 
 #pragma once
 
-#include <cstddef>
-#include <cstdint>
-#include <utility>
+#include "common/common_types.h"
 
 namespace Common {
 
-using uint128 = std::pair<uint64_t, uint64_t>;
-
-[[nodiscard]] inline uint64_t Uint128Low64(const uint128& x) {
-    return x.first;
-}
-[[nodiscard]] inline uint64_t Uint128High64(const uint128& x) {
-    return x.second;
-}
-
 // Hash function for a byte array.
-[[nodiscard]] uint64_t CityHash64(const char* buf, std::size_t len);
+[[nodiscard]] u64 CityHash64(const char* buf, size_t len);
 
 // Hash function for a byte array.  For convenience, a 64-bit seed is also
 // hashed into the result.
-[[nodiscard]] uint64_t CityHash64WithSeed(const char* buf, std::size_t len, uint64_t seed);
+[[nodiscard]] u64 CityHash64WithSeed(const char* buf, size_t len, u64 seed);
 
 // Hash function for a byte array.  For convenience, two seeds are also
 // hashed into the result.
-[[nodiscard]] uint64_t CityHash64WithSeeds(const char* buf, std::size_t len, uint64_t seed0,
-                                           uint64_t seed1);
+[[nodiscard]] u64 CityHash64WithSeeds(const char* buf, size_t len, u64 seed0, u64 seed1);
 
 // Hash function for a byte array.
-[[nodiscard]] uint128 CityHash128(const char* s, std::size_t len);
+[[nodiscard]] u128 CityHash128(const char* s, size_t len);
 
 // Hash function for a byte array.  For convenience, a 128-bit seed is also
 // hashed into the result.
-[[nodiscard]] uint128 CityHash128WithSeed(const char* s, std::size_t len, uint128 seed);
+[[nodiscard]] u128 CityHash128WithSeed(const char* s, size_t len, u128 seed);
 
 // Hash 128 input bits down to 64 bits of output.
 // This is intended to be a reasonably good hash function.
-[[nodiscard]] inline uint64_t Hash128to64(const uint128& x) {
+[[nodiscard]] inline u64 Hash128to64(const u128& x) {
     // Murmur-inspired hashing.
-    const uint64_t kMul = 0x9ddfea08eb382d69ULL;
-    uint64_t a = (Uint128Low64(x) ^ Uint128High64(x)) * kMul;
+    const u64 mul = 0x9ddfea08eb382d69ULL;
+    u64 a = (x[0] ^ x[1]) * mul;
     a ^= (a >> 47);
-    uint64_t b = (Uint128High64(x) ^ a) * kMul;
+    u64 b = (x[1] ^ a) * mul;
     b ^= (b >> 47);
-    b *= kMul;
+    b *= mul;
     return b;
 }
 

src/common/uint128.cpp

@@ -1,71 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#ifdef _MSC_VER
-#include <intrin.h>
-
-#pragma intrinsic(_umul128)
-#pragma intrinsic(_udiv128)
-#endif
-#include <cstring>
-#include "common/uint128.h"
-
-namespace Common {
-
-#ifdef _MSC_VER
-
-u64 MultiplyAndDivide64(u64 a, u64 b, u64 d) {
-    u128 r{};
-    r[0] = _umul128(a, b, &r[1]);
-    u64 remainder;
-#if _MSC_VER < 1923
-    return udiv128(r[1], r[0], d, &remainder);
-#else
-    return _udiv128(r[1], r[0], d, &remainder);
-#endif
-}
-
-#else
-
-u64 MultiplyAndDivide64(u64 a, u64 b, u64 d) {
-    const u64 diva = a / d;
-    const u64 moda = a % d;
-    const u64 divb = b / d;
-    const u64 modb = b % d;
-    return diva * b + moda * divb + moda * modb / d;
-}
-
-#endif
-
-u128 Multiply64Into128(u64 a, u64 b) {
-    u128 result;
-#ifdef _MSC_VER
-    result[0] = _umul128(a, b, &result[1]);
-#else
-    unsigned __int128 tmp = a;
-    tmp *= b;
-    std::memcpy(&result, &tmp, sizeof(u128));
-#endif
-    return result;
-}
-
-std::pair<u64, u64> Divide128On32(u128 dividend, u32 divisor) {
-    u64 remainder = dividend[0] % divisor;
-    u64 accum = dividend[0] / divisor;
-    if (dividend[1] == 0)
-        return {accum, remainder};
-    // We ignore dividend[1] / divisor as that overflows
-    const u64 first_segment = (dividend[1] % divisor) << 32;
-    accum += (first_segment / divisor) << 32;
-    const u64 second_segment = (first_segment % divisor) << 32;
-    accum += (second_segment / divisor);
-    remainder += second_segment % divisor;
-    if (remainder >= divisor) {
-        accum++;
-        remainder -= divisor;
-    }
-    return {accum, remainder};
-}
-
-} // namespace Common

src/common/uint128.h

@@ -4,19 +4,118 @@
 
 #pragma once
 
+#include <cstring>
 #include <utility>
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#pragma intrinsic(__umulh)
+#pragma intrinsic(_umul128)
+#pragma intrinsic(_udiv128)
+#else
+#include <x86intrin.h>
+#endif
+
 #include "common/common_types.h"
 
 namespace Common {
 
 // This function multiplies 2 u64 values and divides it by a u64 value.
-[[nodiscard]] u64 MultiplyAndDivide64(u64 a, u64 b, u64 d);
+[[nodiscard]] static inline u64 MultiplyAndDivide64(u64 a, u64 b, u64 d) {
+#ifdef _MSC_VER
+    u128 r{};
+    r[0] = _umul128(a, b, &r[1]);
+    u64 remainder;
+#if _MSC_VER < 1923
+    return udiv128(r[1], r[0], d, &remainder);
+#else
+    return _udiv128(r[1], r[0], d, &remainder);
+#endif
+#else
+    const u64 diva = a / d;
+    const u64 moda = a % d;
+    const u64 divb = b / d;
+    const u64 modb = b % d;
+    return diva * b + moda * divb + moda * modb / d;
+#endif
+}
 
 // This function multiplies 2 u64 values and produces a u128 value;
-[[nodiscard]] u128 Multiply64Into128(u64 a, u64 b);
+[[nodiscard]] static inline u128 Multiply64Into128(u64 a, u64 b) {
+    u128 result;
+#ifdef _MSC_VER
+    result[0] = _umul128(a, b, &result[1]);
+#else
+    unsigned __int128 tmp = a;
+    tmp *= b;
+    std::memcpy(&result, &tmp, sizeof(u128));
+#endif
+    return result;
+}
+
+[[nodiscard]] static inline u64 GetFixedPoint64Factor(u64 numerator, u64 divisor) {
+#ifdef __SIZEOF_INT128__
+    const auto base = static_cast<unsigned __int128>(numerator) << 64ULL;
+    return static_cast<u64>(base / divisor);
+#elif defined(_M_X64) || defined(_M_ARM64)
+    std::array<u64, 2> r = {0, numerator};
+    u64 remainder;
+#if _MSC_VER < 1923
+    return udiv128(r[1], r[0], divisor, &remainder);
+#else
+    return _udiv128(r[1], r[0], divisor, &remainder);
+#endif
+#else
+    // This one is bit more inaccurate.
+    return MultiplyAndDivide64(std::numeric_limits<u64>::max(), numerator, divisor);
+#endif
+}
+
+[[nodiscard]] static inline u64 MultiplyHigh(u64 a, u64 b) {
+#ifdef __SIZEOF_INT128__
+    return (static_cast<unsigned __int128>(a) * static_cast<unsigned __int128>(b)) >> 64;
+#elif defined(_M_X64) || defined(_M_ARM64)
+    return __umulh(a, b); // MSVC
+#else
+    // Generic fallback
+    const u64 a_lo = u32(a);
+    const u64 a_hi = a >> 32;
+    const u64 b_lo = u32(b);
+    const u64 b_hi = b >> 32;
+
+    const u64 a_x_b_hi = a_hi * b_hi;
+    const u64 a_x_b_mid = a_hi * b_lo;
+    const u64 b_x_a_mid = b_hi * a_lo;
+    const u64 a_x_b_lo = a_lo * b_lo;
+
+    const u64 carry_bit = (static_cast<u64>(static_cast<u32>(a_x_b_mid)) +
+                           static_cast<u64>(static_cast<u32>(b_x_a_mid)) + (a_x_b_lo >> 32)) >>
+                          32;
+
+    const u64 multhi = a_x_b_hi + (a_x_b_mid >> 32) + (b_x_a_mid >> 32) + carry_bit;
+
+    return multhi;
+#endif
+}
 
 // This function divides a u128 by a u32 value and produces two u64 values:
 // the result of division and the remainder
-[[nodiscard]] std::pair<u64, u64> Divide128On32(u128 dividend, u32 divisor);
+[[nodiscard]] static inline std::pair<u64, u64> Divide128On32(u128 dividend, u32 divisor) {
+    u64 remainder = dividend[0] % divisor;
+    u64 accum = dividend[0] / divisor;
+    if (dividend[1] == 0)
+        return {accum, remainder};
+    // We ignore dividend[1] / divisor as that overflows
+    const u64 first_segment = (dividend[1] % divisor) << 32;
+    accum += (first_segment / divisor) << 32;
+    const u64 second_segment = (first_segment % divisor) << 32;
+    accum += (second_segment / divisor);
+    remainder += second_segment % divisor;
+    if (remainder >= divisor) {
+        accum++;
+        remainder -= divisor;
+    }
+    return {accum, remainder};
+}
 
 } // namespace Common

src/common/wall_clock.cpp

@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cstdint>
+
 #include "common/uint128.h"
 #include "common/wall_clock.h"
 

src/common/x64/native_clock.cpp

@@ -8,68 +8,10 @@
 #include <mutex>
 #include <thread>
 
-#ifdef _MSC_VER
-#include <intrin.h>
-
-#pragma intrinsic(__umulh)
-#pragma intrinsic(_udiv128)
-#else
-#include <x86intrin.h>
-#endif
-
 #include "common/atomic_ops.h"
 #include "common/uint128.h"
 #include "common/x64/native_clock.h"
 
-namespace {
-
-[[nodiscard]] u64 GetFixedPoint64Factor(u64 numerator, u64 divisor) {
-#ifdef __SIZEOF_INT128__
-    const auto base = static_cast<unsigned __int128>(numerator) << 64ULL;
-    return static_cast<u64>(base / divisor);
-#elif defined(_M_X64) || defined(_M_ARM64)
-    std::array<u64, 2> r = {0, numerator};
-    u64 remainder;
-#if _MSC_VER < 1923
-    return udiv128(r[1], r[0], divisor, &remainder);
-#else
-    return _udiv128(r[1], r[0], divisor, &remainder);
-#endif
-#else
-    // This one is bit more inaccurate.
-    return MultiplyAndDivide64(std::numeric_limits<u64>::max(), numerator, divisor);
-#endif
-}
-
-[[nodiscard]] u64 MultiplyHigh(u64 a, u64 b) {
-#ifdef __SIZEOF_INT128__
-    return (static_cast<unsigned __int128>(a) * static_cast<unsigned __int128>(b)) >> 64;
-#elif defined(_M_X64) || defined(_M_ARM64)
-    return __umulh(a, b); // MSVC
-#else
-    // Generic fallback
-    const u64 a_lo = u32(a);
-    const u64 a_hi = a >> 32;
-    const u64 b_lo = u32(b);
-    const u64 b_hi = b >> 32;
-
-    const u64 a_x_b_hi = a_hi * b_hi;
-    const u64 a_x_b_mid = a_hi * b_lo;
-    const u64 b_x_a_mid = b_hi * a_lo;
-    const u64 a_x_b_lo = a_lo * b_lo;
-
-    const u64 carry_bit = (static_cast<u64>(static_cast<u32>(a_x_b_mid)) +
-                           static_cast<u64>(static_cast<u32>(b_x_a_mid)) + (a_x_b_lo >> 32)) >>
-                          32;
-
-    const u64 multhi = a_x_b_hi + (a_x_b_mid >> 32) + (b_x_a_mid >> 32) + carry_bit;
-
-    return multhi;
-#endif
-}
-
-} // namespace
-
 namespace Common {
 
 u64 EstimateRDTSCFrequency() {

src/core/CMakeLists.txt

@@ -19,7 +19,6 @@ add_library(core STATIC
     core.h
     core_timing.cpp
     core_timing.h
-    core_timing_util.cpp
     core_timing_util.h
     cpu_manager.cpp
     cpu_manager.h
@@ -148,7 +147,7 @@ add_library(core STATIC
     hle/kernel/client_session.h
     hle/kernel/code_set.cpp
     hle/kernel/code_set.h
-    hle/kernel/errors.h
+    hle/kernel/svc_results.h
     hle/kernel/global_scheduler_context.cpp
     hle/kernel/global_scheduler_context.h
     hle/kernel/handle_table.cpp
@@ -174,6 +173,7 @@ add_library(core STATIC
     hle/kernel/k_scheduler.h
     hle/kernel/k_scheduler_lock.h
     hle/kernel/k_scoped_lock.h
+    hle/kernel/k_scoped_resource_reservation.h
     hle/kernel/k_scoped_scheduler_lock_and_sleep.h
     hle/kernel/k_synchronization_object.cpp
     hle/kernel/k_synchronization_object.h
@@ -223,7 +223,6 @@ add_library(core STATIC
     hle/kernel/svc.cpp
     hle/kernel/svc.h
     hle/kernel/svc_common.h
-    hle/kernel/svc_results.h
     hle/kernel/svc_types.h
     hle/kernel/svc_wrap.h
     hle/kernel/time_manager.cpp
@@ -266,6 +265,7 @@ add_library(core STATIC
     hle/service/am/applets/software_keyboard.h
     hle/service/am/applets/web_browser.cpp
     hle/service/am/applets/web_browser.h
+    hle/service/am/applets/web_types.h
     hle/service/am/idle.cpp
     hle/service/am/idle.h
     hle/service/am/omm.cpp
@@ -400,6 +400,7 @@ add_library(core STATIC
     hle/service/hid/controllers/xpad.h
     hle/service/lbl/lbl.cpp
     hle/service/lbl/lbl.h
+    hle/service/ldn/errors.h
     hle/service/ldn/ldn.cpp
     hle/service/ldn/ldn.h
     hle/service/ldr/ldr.cpp
@@ -653,6 +654,8 @@ else()
         $<$<CXX_COMPILER_ID:GNU>:-Werror=unused-but-set-parameter>
         $<$<CXX_COMPILER_ID:GNU>:-Werror=unused-but-set-variable>
 
+        $<$<CXX_COMPILER_ID:Clang>:-fsized-deallocation>
+
         -Wno-sign-conversion
     )
 endif()

src/core/core.cpp

@@ -308,6 +308,9 @@ struct System::Impl {
         // Close all CPU/threading state
         cpu_manager.Shutdown();
 
+        // Release the Time Manager's resources
+        time_manager.Shutdown();
+
         // Shutdown kernel and core timing
         core_timing.Shutdown();
         kernel.Shutdown();

src/core/core_timing_util.cpp

@@ -1,84 +0,0 @@
-// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
-
-#include "core/core_timing_util.h"
-
-#include <cinttypes>
-#include <limits>
-#include "common/logging/log.h"
-#include "common/uint128.h"
-#include "core/hardware_properties.h"
-
-namespace Core::Timing {
-
-constexpr u64 MAX_VALUE_TO_MULTIPLY = std::numeric_limits<s64>::max() / Hardware::BASE_CLOCK_RATE;
-
-s64 msToCycles(std::chrono::milliseconds ms) {
-    if (static_cast<u64>(ms.count() / 1000) > MAX_VALUE_TO_MULTIPLY) {
-        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
-        return std::numeric_limits<s64>::max();
-    }
-    if (static_cast<u64>(ms.count()) > MAX_VALUE_TO_MULTIPLY) {
-        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
-        return Hardware::BASE_CLOCK_RATE * (ms.count() / 1000);
-    }
-    return (Hardware::BASE_CLOCK_RATE * ms.count()) / 1000;
-}
-
-s64 usToCycles(std::chrono::microseconds us) {
-    if (static_cast<u64>(us.count() / 1000000) > MAX_VALUE_TO_MULTIPLY) {
-        LOG_ERROR(Core_Timing, "Integer overflow, use max value");
-        return std::numeric_limits<s64>::max();
-    }
-    if (static_cast<u64>(us.count()) > MAX_VALUE_TO_MULTIPLY) {
-        LOG_DEBUG(Core_Timing, "Time very big, do rounding");
-        return Hardware::BASE_CLOCK_RATE * (us.count() / 1000000);
-    }
-    return (Hardware::BASE_CLOCK_RATE * us.count()) / 1000000;
-}
-
-s64 nsToCycles(std::chrono::nanoseconds ns) {
-    const u128 temporal = Common::Multiply64Into128(ns.count(), Hardware::BASE_CLOCK_RATE);
-    return Common::Divide128On32(temporal, static_cast<u32>(1000000000)).first;
-}
-
-u64 msToClockCycles(std::chrono::milliseconds ns) {
-    const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ);
-    return Common::Divide128On32(temp, 1000).first;
-}
-
-u64 usToClockCycles(std::chrono::microseconds ns) {
-    const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ);
-    return Common::Divide128On32(temp, 1000000).first;
-}
-
-u64 nsToClockCycles(std::chrono::nanoseconds ns) {
-    const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ);
-    return Common::Divide128On32(temp, 1000000000).first;
-}
-
-u64 CpuCyclesToClockCycles(u64 ticks) {
-    const u128 temporal = Common::Multiply64Into128(ticks, Hardware::CNTFREQ);
-    return Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
-}
-
-std::chrono::milliseconds CyclesToMs(s64 cycles) {
-    const u128 temporal = Common::Multiply64Into128(cycles, 1000);
-    u64 ms = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
-    return std::chrono::milliseconds(ms);
-}
-
-std::chrono::nanoseconds CyclesToNs(s64 cycles) {
-    const u128 temporal = Common::Multiply64Into128(cycles, 1000000000);
-    u64 ns = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
-    return std::chrono::nanoseconds(ns);
-}
-
-std::chrono::microseconds CyclesToUs(s64 cycles) {
-    const u128 temporal = Common::Multiply64Into128(cycles, 1000000);
-    u64 us = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
-    return std::chrono::microseconds(us);
-}
-
-} // namespace Core::Timing

src/core/core_timing_util.h

@@ -1,24 +1,59 @@
-// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project
-// Licensed under GPLv2+
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
 
 #include <chrono>
+
 #include "common/common_types.h"
+#include "core/hardware_properties.h"
 
 namespace Core::Timing {
 
-s64 msToCycles(std::chrono::milliseconds ms);
-s64 usToCycles(std::chrono::microseconds us);
-s64 nsToCycles(std::chrono::nanoseconds ns);
-u64 msToClockCycles(std::chrono::milliseconds ns);
-u64 usToClockCycles(std::chrono::microseconds ns);
-u64 nsToClockCycles(std::chrono::nanoseconds ns);
-std::chrono::milliseconds CyclesToMs(s64 cycles);
-std::chrono::nanoseconds CyclesToNs(s64 cycles);
-std::chrono::microseconds CyclesToUs(s64 cycles);
+namespace detail {
+constexpr u64 CNTFREQ_ADJUSTED = Hardware::CNTFREQ / 1000;
+constexpr u64 BASE_CLOCK_RATE_ADJUSTED = Hardware::BASE_CLOCK_RATE / 1000;
+} // namespace detail
 
-u64 CpuCyclesToClockCycles(u64 ticks);
+[[nodiscard]] constexpr s64 msToCycles(std::chrono::milliseconds ms) {
+    return ms.count() * detail::BASE_CLOCK_RATE_ADJUSTED;
+}
+
+[[nodiscard]] constexpr s64 usToCycles(std::chrono::microseconds us) {
+    return us.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000;
+}
+
+[[nodiscard]] constexpr s64 nsToCycles(std::chrono::nanoseconds ns) {
+    return ns.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000000;
+}
+
+[[nodiscard]] constexpr u64 msToClockCycles(std::chrono::milliseconds ms) {
+    return static_cast<u64>(ms.count()) * detail::CNTFREQ_ADJUSTED;
+}
+
+[[nodiscard]] constexpr u64 usToClockCycles(std::chrono::microseconds us) {
+    return us.count() * detail::CNTFREQ_ADJUSTED / 1000;
+}
+
+[[nodiscard]] constexpr u64 nsToClockCycles(std::chrono::nanoseconds ns) {
+    return ns.count() * detail::CNTFREQ_ADJUSTED / 1000000;
+}
+
+[[nodiscard]] constexpr u64 CpuCyclesToClockCycles(u64 ticks) {
+    return ticks * detail::CNTFREQ_ADJUSTED / detail::BASE_CLOCK_RATE_ADJUSTED;
+}
+
+[[nodiscard]] constexpr std::chrono::milliseconds CyclesToMs(s64 cycles) {
+    return std::chrono::milliseconds(cycles / detail::BASE_CLOCK_RATE_ADJUSTED);
+}
+
+[[nodiscard]] constexpr std::chrono::nanoseconds CyclesToNs(s64 cycles) {
+    return std::chrono::nanoseconds(cycles * 1000000 / detail::BASE_CLOCK_RATE_ADJUSTED);
+}
+
+[[nodiscard]] constexpr std::chrono::microseconds CyclesToUs(s64 cycles) {
+    return std::chrono::microseconds(cycles * 1000 / detail::BASE_CLOCK_RATE_ADJUSTED);
+}
 
 } // namespace Core::Timing

src/core/frontend/applets/controller.h

@@ -31,6 +31,7 @@ struct ControllerParameters {
     bool allow_dual_joycons{};
     bool allow_left_joycon{};
     bool allow_right_joycon{};
+    bool allow_gamecube_controller{};
 };
 
 class ControllerApplet {

src/core/hle/kernel/client_port.cpp

@@ -4,11 +4,11 @@
 
 #include "core/hle/kernel/client_port.h"
 #include "core/hle/kernel/client_session.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/server_port.h"
 #include "core/hle/kernel/session.h"
+#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 
@@ -21,7 +21,7 @@ std::shared_ptr<ServerPort> ClientPort::GetServerPort() const {
 
 ResultVal<std::shared_ptr<ClientSession>> ClientPort::Connect() {
     if (active_sessions >= max_sessions) {
-        return ERR_MAX_CONNECTIONS_REACHED;
+        return ResultMaxConnectionsReached;
     }
     active_sessions++;
 

src/core/hle/kernel/client_session.cpp

@@ -3,11 +3,11 @@
 // Refer to the license.txt file included.
 
 #include "core/hle/kernel/client_session.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/server_session.h"
 #include "core/hle/kernel/session.h"
+#include "core/hle/kernel/svc_results.h"
 #include "core/hle/result.h"
 
 namespace Kernel {
@@ -43,7 +43,7 @@ ResultCode ClientSession::SendSyncRequest(std::shared_ptr<KThread> thread,
                                           Core::Timing::CoreTiming& core_timing) {
     // Keep ServerSession alive until we're done working with it.
     if (!parent->Server()) {
-        return ERR_SESSION_CLOSED_BY_REMOTE;
+        return ResultSessionClosedByRemote;
     }
 
     // Signal the server session that new data is available

src/core/hle/kernel/errors.h

@@ -1,43 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "core/hle/result.h"
-
-namespace Kernel {
-
-// Confirmed Switch kernel error codes
-
-constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED{ErrorModule::Kernel, 7};
-constexpr ResultCode ERR_INVALID_CAPABILITY_DESCRIPTOR{ErrorModule::Kernel, 14};
-constexpr ResultCode ERR_THREAD_TERMINATING{ErrorModule::Kernel, 59};
-constexpr ResultCode ERR_TERMINATION_REQUESTED{ErrorModule::Kernel, 59};
-constexpr ResultCode ERR_INVALID_SIZE{ErrorModule::Kernel, 101};
-constexpr ResultCode ERR_INVALID_ADDRESS{ErrorModule::Kernel, 102};
-constexpr ResultCode ERR_OUT_OF_RESOURCES{ErrorModule::Kernel, 103};
-constexpr ResultCode ERR_OUT_OF_MEMORY{ErrorModule::Kernel, 104};
-constexpr ResultCode ERR_HANDLE_TABLE_FULL{ErrorModule::Kernel, 105};
-constexpr ResultCode ERR_INVALID_ADDRESS_STATE{ErrorModule::Kernel, 106};
-constexpr ResultCode ERR_INVALID_CURRENT_MEMORY{ErrorModule::Kernel, 106};
-constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS{ErrorModule::Kernel, 108};
-constexpr ResultCode ERR_INVALID_MEMORY_RANGE{ErrorModule::Kernel, 110};
-constexpr ResultCode ERR_INVALID_PROCESSOR_ID{ErrorModule::Kernel, 113};
-constexpr ResultCode ERR_INVALID_THREAD_PRIORITY{ErrorModule::Kernel, 112};
-constexpr ResultCode ERR_INVALID_HANDLE{ErrorModule::Kernel, 114};
-constexpr ResultCode ERR_INVALID_POINTER{ErrorModule::Kernel, 115};
-constexpr ResultCode ERR_INVALID_COMBINATION{ErrorModule::Kernel, 116};
-constexpr ResultCode RESULT_TIMEOUT{ErrorModule::Kernel, 117};
-constexpr ResultCode ERR_SYNCHRONIZATION_CANCELED{ErrorModule::Kernel, 118};
-constexpr ResultCode ERR_CANCELLED{ErrorModule::Kernel, 118};
-constexpr ResultCode ERR_OUT_OF_RANGE{ErrorModule::Kernel, 119};
-constexpr ResultCode ERR_INVALID_ENUM_VALUE{ErrorModule::Kernel, 120};
-constexpr ResultCode ERR_NOT_FOUND{ErrorModule::Kernel, 121};
-constexpr ResultCode ERR_BUSY{ErrorModule::Kernel, 122};
-constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE{ErrorModule::Kernel, 123};
-constexpr ResultCode ERR_INVALID_STATE{ErrorModule::Kernel, 125};
-constexpr ResultCode ERR_RESERVED_VALUE{ErrorModule::Kernel, 126};
-constexpr ResultCode ERR_RESOURCE_LIMIT_EXCEEDED{ErrorModule::Kernel, 132};
-
-} // namespace Kernel

src/core/hle/kernel/handle_table.cpp

@@ -6,12 +6,12 @@
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/core.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 namespace {
@@ -33,7 +33,7 @@ HandleTable::~HandleTable() = default;
 ResultCode HandleTable::SetSize(s32 handle_table_size) {
     if (static_cast<u32>(handle_table_size) > MAX_COUNT) {
         LOG_ERROR(Kernel, "Handle table size {} is greater than {}", handle_table_size, MAX_COUNT);
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     // Values less than or equal to zero indicate to use the maximum allowable
@@ -53,7 +53,7 @@ ResultVal<Handle> HandleTable::Create(std::shared_ptr<Object> obj) {
     const u16 slot = next_free_slot;
     if (slot >= table_size) {
         LOG_ERROR(Kernel, "Unable to allocate Handle, too many slots in use.");
-        return ERR_HANDLE_TABLE_FULL;
+        return ResultHandleTableFull;
     }
     next_free_slot = generations[slot];
 
@@ -76,7 +76,7 @@ ResultVal<Handle> HandleTable::Duplicate(Handle handle) {
     std::shared_ptr<Object> object = GetGeneric(handle);
     if (object == nullptr) {
         LOG_ERROR(Kernel, "Tried to duplicate invalid handle: {:08X}", handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
     return Create(std::move(object));
 }
@@ -84,7 +84,7 @@ ResultVal<Handle> HandleTable::Duplicate(Handle handle) {
 ResultCode HandleTable::Close(Handle handle) {
     if (!IsValid(handle)) {
         LOG_ERROR(Kernel, "Handle is not valid! handle={:08X}", handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     const u16 slot = GetSlot(handle);

src/core/hle/kernel/hle_ipc.cpp

@@ -14,7 +14,6 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "core/hle/ipc_helpers.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/k_readable_event.h"
@@ -26,6 +25,7 @@
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/server_session.h"
+#include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/time_manager.h"
 #include "core/memory.h"
 

src/core/hle/kernel/k_address_arbiter.cpp

@@ -120,10 +120,10 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
         s32 user_value{};
         if (!UpdateIfEqual(system, &user_value, addr, value, value + 1)) {
             LOG_ERROR(Kernel, "Invalid current memory!");
-            return Svc::ResultInvalidCurrentMemory;
+            return ResultInvalidCurrentMemory;
         }
         if (user_value != value) {
-            return Svc::ResultInvalidState;
+            return ResultInvalidState;
         }
 
         auto it = thread_tree.nfind_light({addr, -1});
@@ -189,10 +189,10 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
 
         if (!succeeded) {
             LOG_ERROR(Kernel, "Invalid current memory!");
-            return Svc::ResultInvalidCurrentMemory;
+            return ResultInvalidCurrentMemory;
         }
         if (user_value != value) {
-            return Svc::ResultInvalidState;
+            return ResultInvalidState;
         }
 
         while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
@@ -221,11 +221,11 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
         // Check that the thread isn't terminating.
         if (cur_thread->IsTerminationRequested()) {
             slp.CancelSleep();
-            return Svc::ResultTerminationRequested;
+            return ResultTerminationRequested;
         }
 
         // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, Svc::ResultTimedOut);
+        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
 
         // Read the value from userspace.
         s32 user_value{};
@@ -238,19 +238,19 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
 
         if (!succeeded) {
             slp.CancelSleep();
-            return Svc::ResultInvalidCurrentMemory;
+            return ResultInvalidCurrentMemory;
         }
 
         // Check that the value is less than the specified one.
         if (user_value >= value) {
             slp.CancelSleep();
-            return Svc::ResultInvalidState;
+            return ResultInvalidState;
         }
 
         // Check that the timeout is non-zero.
         if (timeout == 0) {
             slp.CancelSleep();
-            return Svc::ResultTimedOut;
+            return ResultTimedOut;
         }
 
         // Set the arbiter.
@@ -288,29 +288,29 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
         // Check that the thread isn't terminating.
         if (cur_thread->IsTerminationRequested()) {
             slp.CancelSleep();
-            return Svc::ResultTerminationRequested;
+            return ResultTerminationRequested;
         }
 
         // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, Svc::ResultTimedOut);
+        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
 
         // Read the value from userspace.
         s32 user_value{};
         if (!ReadFromUser(system, &user_value, addr)) {
             slp.CancelSleep();
-            return Svc::ResultInvalidCurrentMemory;
+            return ResultInvalidCurrentMemory;
         }
 
         // Check that the value is equal.
         if (value != user_value) {
             slp.CancelSleep();
-            return Svc::ResultInvalidState;
+            return ResultInvalidState;
         }
 
         // Check that the timeout is non-zero.
         if (timeout == 0) {
             slp.CancelSleep();
-            return Svc::ResultTimedOut;
+            return ResultTimedOut;
         }
 
         // Set the arbiter.

src/core/hle/kernel/k_condition_variable.cpp

@@ -92,10 +92,10 @@ ResultCode KConditionVariable::SignalToAddress(VAddr addr) {
         // Write the value to userspace.
         if (!WriteToUser(system, addr, std::addressof(next_value))) {
             if (next_owner_thread) {
-                next_owner_thread->SetSyncedObject(nullptr, Svc::ResultInvalidCurrentMemory);
+                next_owner_thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
             }
 
-            return Svc::ResultInvalidCurrentMemory;
+            return ResultInvalidCurrentMemory;
         }
     }
 
@@ -114,20 +114,20 @@ ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 val
             cur_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
 
             // Check if the thread should terminate.
-            R_UNLESS(!cur_thread->IsTerminationRequested(), Svc::ResultTerminationRequested);
+            R_UNLESS(!cur_thread->IsTerminationRequested(), ResultTerminationRequested);
 
             {
                 // Read the tag from userspace.
                 u32 test_tag{};
                 R_UNLESS(ReadFromUser(system, std::addressof(test_tag), addr),
-                         Svc::ResultInvalidCurrentMemory);
+                         ResultInvalidCurrentMemory);
 
                 // If the tag isn't the handle (with wait mask), we're done.
                 R_UNLESS(test_tag == (handle | Svc::HandleWaitMask), RESULT_SUCCESS);
 
                 // Get the lock owner thread.
                 owner_thread = kernel.CurrentProcess()->GetHandleTable().Get<KThread>(handle);
-                R_UNLESS(owner_thread, Svc::ResultInvalidHandle);
+                R_UNLESS(owner_thread, ResultInvalidHandle);
 
                 // Update the lock.
                 cur_thread->SetAddressKey(addr, value);
@@ -191,13 +191,13 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
                 thread_to_close = owner_thread.get();
             } else {
                 // The lock was tagged with a thread that doesn't exist.
-                thread->SetSyncedObject(nullptr, Svc::ResultInvalidState);
+                thread->SetSyncedObject(nullptr, ResultInvalidState);
                 thread->Wakeup();
             }
         }
     } else {
         // If the address wasn't accessible, note so.
-        thread->SetSyncedObject(nullptr, Svc::ResultInvalidCurrentMemory);
+        thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
         thread->Wakeup();
     }
 
@@ -263,12 +263,12 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
         KScopedSchedulerLockAndSleep slp{kernel, cur_thread, timeout};
 
         // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, Svc::ResultTimedOut);
+        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
 
         // Check that the thread isn't terminating.
         if (cur_thread->IsTerminationRequested()) {
             slp.CancelSleep();
-            return Svc::ResultTerminationRequested;
+            return ResultTerminationRequested;
         }
 
         // Update the value and process for the next owner.
@@ -302,7 +302,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
             // Write the value to userspace.
             if (!WriteToUser(system, addr, std::addressof(next_value))) {
                 slp.CancelSleep();
-                return Svc::ResultInvalidCurrentMemory;
+                return ResultInvalidCurrentMemory;
             }
         }
 

src/core/hle/kernel/k_readable_event.cpp

@@ -6,7 +6,6 @@
 #include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/logging/log.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_thread.h"
@@ -47,7 +46,7 @@ ResultCode KReadableEvent::Reset() {
     KScopedSchedulerLock lk{kernel};
 
     if (!is_signaled) {
-        return Svc::ResultInvalidState;
+        return ResultInvalidState;
     }
 
     is_signaled = false;

src/core/hle/kernel/k_resource_limit.cpp

@@ -75,7 +75,7 @@ s64 KResourceLimit::GetFreeValue(LimitableResource which) const {
 ResultCode KResourceLimit::SetLimitValue(LimitableResource which, s64 value) {
     const auto index = static_cast<std::size_t>(which);
     KScopedLightLock lk(lock);
-    R_UNLESS(current_values[index] <= value, Svc::ResultInvalidState);
+    R_UNLESS(current_values[index] <= value, ResultInvalidState);
 
     limit_values[index] = value;
 

src/core/hle/kernel/k_scoped_resource_reservation.h

@@ -0,0 +1,67 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+// This file references various implementation details from Atmosphere, an open-source firmware for
+// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_resource_limit.h"
+#include "core/hle/kernel/process.h"
+
+namespace Kernel {
+
+class KScopedResourceReservation {
+public:
+    explicit KScopedResourceReservation(std::shared_ptr<KResourceLimit> l, LimitableResource r,
+                                        s64 v, s64 timeout)
+        : resource_limit(std::move(l)), value(v), resource(r) {
+        if (resource_limit && value) {
+            success = resource_limit->Reserve(resource, value, timeout);
+        } else {
+            success = true;
+        }
+    }
+
+    explicit KScopedResourceReservation(std::shared_ptr<KResourceLimit> l, LimitableResource r,
+                                        s64 v = 1)
+        : resource_limit(std::move(l)), value(v), resource(r) {
+        if (resource_limit && value) {
+            success = resource_limit->Reserve(resource, value);
+        } else {
+            success = true;
+        }
+    }
+
+    explicit KScopedResourceReservation(const Process* p, LimitableResource r, s64 v, s64 t)
+        : KScopedResourceReservation(p->GetResourceLimit(), r, v, t) {}
+
+    explicit KScopedResourceReservation(const Process* p, LimitableResource r, s64 v = 1)
+        : KScopedResourceReservation(p->GetResourceLimit(), r, v) {}
+
+    ~KScopedResourceReservation() noexcept {
+        if (resource_limit && value && success) {
+            // resource was not committed, release the reservation.
+            resource_limit->Release(resource, value);
+        }
+    }
+
+    /// Commit the resource reservation, destruction of this object does not release the resource
+    void Commit() {
+        resource_limit = nullptr;
+    }
+
+    [[nodiscard]] bool Succeeded() const {
+        return success;
+    }
+
+private:
+    std::shared_ptr<KResourceLimit> resource_limit;
+    s64 value;
+    LimitableResource resource;
+    bool success;
+};
+
+} // namespace Kernel

src/core/hle/kernel/k_synchronization_object.cpp

@@ -40,20 +40,20 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index,
         // Check if the timeout is zero.
         if (timeout == 0) {
             slp.CancelSleep();
-            return Svc::ResultTimedOut;
+            return ResultTimedOut;
         }
 
         // Check if the thread should terminate.
         if (thread->IsTerminationRequested()) {
             slp.CancelSleep();
-            return Svc::ResultTerminationRequested;
+            return ResultTerminationRequested;
         }
 
         // Check if waiting was canceled.
         if (thread->IsWaitCancelled()) {
             slp.CancelSleep();
             thread->ClearWaitCancelled();
-            return Svc::ResultCancelled;
+            return ResultCancelled;
         }
 
         // Add the waiters.
@@ -75,7 +75,7 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index,
 
         // Mark the thread as waiting.
         thread->SetCancellable();
-        thread->SetSyncedObject(nullptr, Svc::ResultTimedOut);
+        thread->SetSyncedObject(nullptr, ResultTimedOut);
         thread->SetState(ThreadState::Waiting);
         thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Synchronization);
     }

src/core/hle/kernel/k_thread.cpp

@@ -18,7 +18,6 @@
 #include "core/core.h"
 #include "core/cpu_manager.h"
 #include "core/hardware_properties.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/k_condition_variable.h"
 #include "core/hle/kernel/k_resource_limit.h"
@@ -127,7 +126,7 @@ ResultCode KThread::Initialize(KThreadFunction func, uintptr_t arg, VAddr user_s
 
     // Set core ID and wait result.
     core_id = phys_core;
-    wait_result = Svc::ResultNoSynchronizationObject;
+    wait_result = ResultNoSynchronizationObject;
 
     // Set priorities.
     priority = prio;
@@ -238,7 +237,7 @@ void KThread::Finalize() {
         while (it != waiter_list.end()) {
             // The thread shouldn't be a kernel waiter.
             it->SetLockOwner(nullptr);
-            it->SetSyncedObject(nullptr, Svc::ResultInvalidState);
+            it->SetSyncedObject(nullptr, ResultInvalidState);
             it->Wakeup();
             it = waiter_list.erase(it);
         }
@@ -447,7 +446,7 @@ ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
         // If the core id is no-update magic, preserve the ideal core id.
         if (core_id == Svc::IdealCoreNoUpdate) {
             core_id = virtual_ideal_core_id;
-            R_UNLESS(((1ULL << core_id) & v_affinity_mask) != 0, Svc::ResultInvalidCombination);
+            R_UNLESS(((1ULL << core_id) & v_affinity_mask) != 0, ResultInvalidCombination);
         }
 
         // Set the virtual core/affinity mask.
@@ -526,7 +525,7 @@ ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
                 if (GetStackParameters().is_pinned) {
                     // Verify that the current thread isn't terminating.
                     R_UNLESS(!GetCurrentThread(kernel).IsTerminationRequested(),
-                             Svc::ResultTerminationRequested);
+                             ResultTerminationRequested);
 
                     // Note that the thread was pinned.
                     thread_is_pinned = true;
@@ -604,7 +603,7 @@ void KThread::WaitCancel() {
             sleeping_queue->WakeupThread(this);
             wait_cancelled = true;
         } else {
-            SetSyncedObject(nullptr, Svc::ResultCancelled);
+            SetSyncedObject(nullptr, ResultCancelled);
             SetState(ThreadState::Runnable);
             wait_cancelled = false;
         }
@@ -663,12 +662,12 @@ ResultCode KThread::SetActivity(Svc::ThreadActivity activity) {
         // Verify our state.
         const auto cur_state = GetState();
         R_UNLESS((cur_state == ThreadState::Waiting || cur_state == ThreadState::Runnable),
-                 Svc::ResultInvalidState);
+                 ResultInvalidState);
 
         // Either pause or resume.
         if (activity == Svc::ThreadActivity::Paused) {
             // Verify that we're not suspended.
-            R_UNLESS(!IsSuspendRequested(SuspendType::Thread), Svc::ResultInvalidState);
+            R_UNLESS(!IsSuspendRequested(SuspendType::Thread), ResultInvalidState);
 
             // Suspend.
             RequestSuspend(SuspendType::Thread);
@@ -676,7 +675,7 @@ ResultCode KThread::SetActivity(Svc::ThreadActivity activity) {
             ASSERT(activity == Svc::ThreadActivity::Runnable);
 
             // Verify that we're suspended.
-            R_UNLESS(IsSuspendRequested(SuspendType::Thread), Svc::ResultInvalidState);
+            R_UNLESS(IsSuspendRequested(SuspendType::Thread), ResultInvalidState);
 
             // Resume.
             Resume(SuspendType::Thread);
@@ -698,7 +697,7 @@ ResultCode KThread::SetActivity(Svc::ThreadActivity activity) {
             if (GetStackParameters().is_pinned) {
                 // Verify that the current thread isn't terminating.
                 R_UNLESS(!GetCurrentThread(kernel).IsTerminationRequested(),
-                         Svc::ResultTerminationRequested);
+                         ResultTerminationRequested);
 
                 // Note that the thread was pinned and not current.
                 thread_is_pinned = true;
@@ -745,7 +744,7 @@ ResultCode KThread::GetThreadContext3(std::vector<u8>& out) {
         KScopedSchedulerLock sl{kernel};
 
         // Verify that we're suspended.
-        R_UNLESS(IsSuspendRequested(SuspendType::Thread), Svc::ResultInvalidState);
+        R_UNLESS(IsSuspendRequested(SuspendType::Thread), ResultInvalidState);
 
         // If we're not terminating, get the thread's user context.
         if (!IsTerminationRequested()) {
@@ -905,12 +904,11 @@ ResultCode KThread::Run() {
         KScopedSchedulerLock lk{kernel};
 
         // If either this thread or the current thread are requesting termination, note it.
-        R_UNLESS(!IsTerminationRequested(), Svc::ResultTerminationRequested);
-        R_UNLESS(!GetCurrentThread(kernel).IsTerminationRequested(),
-                 Svc::ResultTerminationRequested);
+        R_UNLESS(!IsTerminationRequested(), ResultTerminationRequested);
+        R_UNLESS(!GetCurrentThread(kernel).IsTerminationRequested(), ResultTerminationRequested);
 
         // Ensure our thread state is correct.
-        R_UNLESS(GetState() == ThreadState::Initialized, Svc::ResultInvalidState);
+        R_UNLESS(GetState() == ThreadState::Initialized, ResultInvalidState);
 
         // If the current thread has been asked to suspend, suspend it and retry.
         if (GetCurrentThread(kernel).IsSuspended()) {
@@ -962,7 +960,7 @@ ResultCode KThread::Sleep(s64 timeout) {
         // Check if the thread should terminate.
         if (IsTerminationRequested()) {
             slp.CancelSleep();
-            return Svc::ResultTerminationRequested;
+            return ResultTerminationRequested;
         }
 
         // Mark the thread as waiting.

src/core/hle/kernel/kernel.cpp

@@ -26,7 +26,6 @@
 #include "core/device_memory.h"
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/client_port.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_scheduler.h"
@@ -39,6 +38,7 @@
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/service_thread.h"
 #include "core/hle/kernel/shared_memory.h"
+#include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/time_manager.h"
 #include "core/hle/lock.h"
 #include "core/hle/result.h"
@@ -101,8 +101,6 @@ struct KernelCore::Impl {
 
         current_process = nullptr;
 
-        system_resource_limit = nullptr;
-
         global_handle_table.Clear();
 
         preemption_event = nullptr;
@@ -111,6 +109,13 @@ struct KernelCore::Impl {
 
         exclusive_monitor.reset();
 
+        hid_shared_mem = nullptr;
+        font_shared_mem = nullptr;
+        irs_shared_mem = nullptr;
+        time_shared_mem = nullptr;
+
+        system_resource_limit = nullptr;
+
         // Next host thead ID to use, 0-3 IDs represent core threads, >3 represent others
         next_host_thread_id = Core::Hardware::NUM_CPU_CORES;
     }
@@ -141,11 +146,17 @@ struct KernelCore::Impl {
         ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Events, 700).IsSuccess());
         ASSERT(system_resource_limit->SetLimitValue(LimitableResource::TransferMemory, 200)
                    .IsSuccess());
-        ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Sessions, 900).IsSuccess());
+        ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Sessions, 933).IsSuccess());
 
-        if (!system_resource_limit->Reserve(LimitableResource::PhysicalMemory, 0x60000)) {
+        // Derived from recent software updates. The kernel reserves 27MB
+        constexpr u64 kernel_size{0x1b00000};
+        if (!system_resource_limit->Reserve(LimitableResource::PhysicalMemory, kernel_size)) {
             UNREACHABLE();
         }
+        // Reserve secure applet memory, introduced in firmware 5.0.0
+        constexpr u64 secure_applet_memory_size{0x400000};
+        ASSERT(system_resource_limit->Reserve(LimitableResource::PhysicalMemory,
+                                              secure_applet_memory_size));
     }
 
     void InitializePreemption(KernelCore& kernel) {
@@ -302,8 +313,11 @@ struct KernelCore::Impl {
         // Allocate slab heaps
         user_slab_heap_pages = std::make_unique<Memory::SlabHeap<Memory::Page>>();
 
+        constexpr u64 user_slab_heap_size{0x1ef000};
+        // Reserve slab heaps
+        ASSERT(
+            system_resource_limit->Reserve(LimitableResource::PhysicalMemory, user_slab_heap_size));
         // Initialize slab heaps
-        constexpr u64 user_slab_heap_size{0x3de000};
         user_slab_heap_pages->Initialize(
             system.DeviceMemory().GetPointer(Core::DramMemoryMap::SlabHeapBase),
             user_slab_heap_size);

src/core/hle/kernel/memory/memory_manager.cpp

@@ -8,9 +8,9 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/scope_exit.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/memory/memory_manager.h"
 #include "core/hle/kernel/memory/page_linked_list.h"
+#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel::Memory {
 
@@ -95,7 +95,7 @@ ResultCode MemoryManager::Allocate(PageLinkedList& page_list, std::size_t num_pa
     // Choose a heap based on our page size request
     const s32 heap_index{PageHeap::GetBlockIndex(num_pages)};
     if (heap_index < 0) {
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     // TODO (bunnei): Support multiple managers
@@ -140,7 +140,7 @@ ResultCode MemoryManager::Allocate(PageLinkedList& page_list, std::size_t num_pa
 
     // Only succeed if we allocated as many pages as we wanted
     if (num_pages) {
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     // We succeeded!

src/core/hle/kernel/memory/page_table.cpp

@@ -6,8 +6,7 @@
 #include "common/assert.h"
 #include "common/scope_exit.h"
 #include "core/core.h"
-#include "core/hle/kernel/errors.h"
-#include "core/hle/kernel/k_resource_limit.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/memory/address_space_info.h"
 #include "core/hle/kernel/memory/memory_block.h"
@@ -16,6 +15,7 @@
 #include "core/hle/kernel/memory/page_table.h"
 #include "core/hle/kernel/memory/system_control.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/kernel/svc_results.h"
 #include "core/memory.h"
 
 namespace Kernel::Memory {
@@ -141,7 +141,7 @@ ResultCode PageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_t
         (alias_region_size + heap_region_size + stack_region_size + kernel_map_region_size)};
     if (alloc_size < needed_size) {
         UNREACHABLE();
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     const std::size_t remaining_size{alloc_size - needed_size};
@@ -277,11 +277,11 @@ ResultCode PageTable::MapProcessCode(VAddr addr, std::size_t num_pages, MemorySt
     const u64 size{num_pages * PageSize};
 
     if (!CanContain(addr, size, state)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (IsRegionMapped(addr, size)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     PageLinkedList page_linked_list;
@@ -307,7 +307,7 @@ ResultCode PageTable::MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::
                                   MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped));
 
     if (IsRegionMapped(dst_addr, size)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     PageLinkedList page_linked_list;
@@ -409,27 +409,25 @@ ResultCode PageTable::MapPhysicalMemory(VAddr addr, std::size_t size) {
         return RESULT_SUCCESS;
     }
 
-    auto process{system.Kernel().CurrentProcess()};
     const std::size_t remaining_size{size - mapped_size};
     const std::size_t remaining_pages{remaining_size / PageSize};
 
-    if (process->GetResourceLimit() &&
-        !process->GetResourceLimit()->Reserve(LimitableResource::PhysicalMemory, remaining_size)) {
-        return ERR_RESOURCE_LIMIT_EXCEEDED;
+    // Reserve the memory from the process resource limit.
+    KScopedResourceReservation memory_reservation(
+        system.Kernel().CurrentProcess()->GetResourceLimit(), LimitableResource::PhysicalMemory,
+        remaining_size);
+    if (!memory_reservation.Succeeded()) {
+        LOG_ERROR(Kernel, "Could not reserve remaining {:X} bytes", remaining_size);
+        return ResultResourceLimitedExceeded;
     }
 
     PageLinkedList page_linked_list;
-    {
-        auto block_guard = detail::ScopeExit([&] {
-            system.Kernel().MemoryManager().Free(page_linked_list, remaining_pages, memory_pool);
-            process->GetResourceLimit()->Release(LimitableResource::PhysicalMemory, remaining_size);
-        });
 
-        CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages,
-                                                              memory_pool));
+    CASCADE_CODE(
+        system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages, memory_pool));
 
-        block_guard.Cancel();
-    }
+    // We succeeded, so commit the memory reservation.
+    memory_reservation.Commit();
 
     MapPhysicalMemory(page_linked_list, addr, end_addr);
 
@@ -454,12 +452,12 @@ ResultCode PageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) {
     block_manager->IterateForRange(addr, end_addr, [&](const MemoryInfo& info) {
         if (info.state == MemoryState::Normal) {
             if (info.attribute != MemoryAttribute::None) {
-                result = ERR_INVALID_ADDRESS_STATE;
+                result = ResultInvalidCurrentMemory;
                 return;
             }
             mapped_size += GetSizeInRange(info, addr, end_addr);
         } else if (info.state != MemoryState::Free) {
-            result = ERR_INVALID_ADDRESS_STATE;
+            result = ResultInvalidCurrentMemory;
         }
     });
 
@@ -526,7 +524,7 @@ ResultCode PageTable::Map(VAddr dst_addr, VAddr src_addr, std::size_t size) {
         MemoryAttribute::Mask, MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped));
 
     if (IsRegionMapped(dst_addr, size)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     PageLinkedList page_linked_list;
@@ -577,7 +575,7 @@ ResultCode PageTable::Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size) {
     AddRegionToPages(dst_addr, num_pages, dst_pages);
 
     if (!dst_pages.IsEqual(src_pages)) {
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     {
@@ -626,11 +624,11 @@ ResultCode PageTable::MapPages(VAddr addr, PageLinkedList& page_linked_list, Mem
     const std::size_t size{num_pages * PageSize};
 
     if (!CanContain(addr, size, state)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (IsRegionMapped(addr, num_pages * PageSize)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     CASCADE_CODE(MapPages(addr, page_linked_list, perm));
@@ -768,7 +766,7 @@ ResultCode PageTable::SetHeapCapacity(std::size_t new_heap_capacity) {
 ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) {
 
     if (size > heap_region_end - heap_region_start) {
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     const u64 previous_heap_size{GetHeapSize()};
@@ -781,10 +779,14 @@ ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) {
 
         const u64 delta{size - previous_heap_size};
 
-        auto process{system.Kernel().CurrentProcess()};
-        if (process->GetResourceLimit() && delta != 0 &&
-            !process->GetResourceLimit()->Reserve(LimitableResource::PhysicalMemory, delta)) {
-            return ERR_RESOURCE_LIMIT_EXCEEDED;
+        // Reserve memory for the heap extension.
+        KScopedResourceReservation memory_reservation(
+            system.Kernel().CurrentProcess()->GetResourceLimit(), LimitableResource::PhysicalMemory,
+            delta);
+
+        if (!memory_reservation.Succeeded()) {
+            LOG_ERROR(Kernel, "Could not reserve heap extension of size {:X} bytes", delta);
+            return ResultResourceLimitedExceeded;
         }
 
         PageLinkedList page_linked_list;
@@ -794,12 +796,15 @@ ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) {
             system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool));
 
         if (IsRegionMapped(current_heap_addr, delta)) {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidCurrentMemory;
         }
 
         CASCADE_CODE(
             Operate(current_heap_addr, num_pages, page_linked_list, OperationType::MapGroup));
 
+        // Succeeded in allocation, commit the resource reservation
+        memory_reservation.Commit();
+
         block_manager->Update(current_heap_addr, num_pages, MemoryState::Normal,
                               MemoryPermission::ReadAndWrite);
 
@@ -816,17 +821,17 @@ ResultVal<VAddr> PageTable::AllocateAndMapMemory(std::size_t needed_num_pages, s
     std::lock_guard lock{page_table_lock};
 
     if (!CanContain(region_start, region_num_pages * PageSize, state)) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (region_num_pages <= needed_num_pages) {
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     const VAddr addr{
         AllocateVirtualMemory(region_start, region_num_pages, needed_num_pages, align)};
     if (!addr) {
-        return ERR_OUT_OF_MEMORY;
+        return ResultOutOfMemory;
     }
 
     if (is_map_only) {
@@ -1105,13 +1110,13 @@ constexpr ResultCode PageTable::CheckMemoryState(const MemoryInfo& info, MemoryS
                                                  MemoryAttribute attr) const {
     // Validate the states match expectation
     if ((info.state & state_mask) != state) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
     if ((info.perm & perm_mask) != perm) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
     if ((info.attribute & attr_mask) != attr) {
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     return RESULT_SUCCESS;
@@ -1138,14 +1143,14 @@ ResultCode PageTable::CheckMemoryState(MemoryState* out_state, MemoryPermission*
     while (true) {
         // Validate the current block
         if (!(info.state == first_state)) {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidCurrentMemory;
         }
         if (!(info.perm == first_perm)) {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidCurrentMemory;
         }
         if (!((info.attribute | static_cast<MemoryAttribute>(ignore_attr)) ==
               (first_attr | static_cast<MemoryAttribute>(ignore_attr)))) {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidCurrentMemory;
         }
 
         // Validate against the provided masks

src/core/hle/kernel/process.cpp

@@ -14,9 +14,9 @@
 #include "core/device_memory.h"
 #include "core/file_sys/program_metadata.h"
 #include "core/hle/kernel/code_set.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/memory/memory_block_manager.h"
@@ -39,6 +39,7 @@ namespace {
  */
 void SetupMainThread(Core::System& system, Process& owner_process, u32 priority, VAddr stack_top) {
     const VAddr entry_point = owner_process.PageTable().GetCodeRegionStart();
+    ASSERT(owner_process.GetResourceLimit()->Reserve(LimitableResource::Threads, 1));
     auto thread_res = KThread::Create(system, ThreadType::User, "main", entry_point, priority, 0,
                                       owner_process.GetIdealCoreId(), stack_top, &owner_process);
 
@@ -117,6 +118,9 @@ std::shared_ptr<Process> Process::Create(Core::System& system, std::string name,
 
     std::shared_ptr<Process> process = std::make_shared<Process>(system);
     process->name = std::move(name);
+
+    // TODO: This is inaccurate
+    // The process should hold a reference to the kernel-wide resource limit.
     process->resource_limit = std::make_shared<KResourceLimit>(kernel, system);
     process->status = ProcessStatus::Created;
     process->program_id = 0;
@@ -155,6 +159,9 @@ void Process::DecrementThreadCount() {
 }
 
 u64 Process::GetTotalPhysicalMemoryAvailable() const {
+    // TODO: This is expected to always return the application memory pool size after accurately
+    // reserving kernel resources. The current workaround uses a process-local resource limit of
+    // application memory pool size, which is inaccurate.
     const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) +
                        page_table->GetTotalHeapSize() + GetSystemResourceSize() + image_size +
                        main_thread_stack_size};
@@ -248,8 +255,8 @@ ResultCode Process::Reset() {
     KScopedSchedulerLock sl{kernel};
 
     // Validate that we're in a state that we can reset.
-    R_UNLESS(status != ProcessStatus::Exited, Svc::ResultInvalidState);
-    R_UNLESS(is_signaled, Svc::ResultInvalidState);
+    R_UNLESS(status != ProcessStatus::Exited, ResultInvalidState);
+    R_UNLESS(is_signaled, ResultInvalidState);
 
     // Clear signaled.
     is_signaled = false;
@@ -264,6 +271,17 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
     system_resource_size = metadata.GetSystemResourceSize();
     image_size = code_size;
 
+    // Set initial resource limits
+    resource_limit->SetLimitValue(
+        LimitableResource::PhysicalMemory,
+        kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application));
+    KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory,
+                                                  code_size + system_resource_size);
+    if (!memory_reservation.Succeeded()) {
+        LOG_ERROR(Kernel, "Could not reserve process memory requirements of size {:X} bytes",
+                  code_size + system_resource_size);
+        return ResultResourceLimitedExceeded;
+    }
     // Initialize proces address space
     if (const ResultCode result{
             page_table->InitializeForProcess(metadata.GetAddressSpaceType(), false, 0x8000000,
@@ -305,24 +323,22 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
         UNREACHABLE();
     }
 
-    // Set initial resource limits
-    resource_limit->SetLimitValue(
-        LimitableResource::PhysicalMemory,
-        kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application));
     resource_limit->SetLimitValue(LimitableResource::Threads, 608);
     resource_limit->SetLimitValue(LimitableResource::Events, 700);
     resource_limit->SetLimitValue(LimitableResource::TransferMemory, 128);
     resource_limit->SetLimitValue(LimitableResource::Sessions, 894);
-    ASSERT(resource_limit->Reserve(LimitableResource::PhysicalMemory, code_size));
 
     // Create TLS region
     tls_region_address = CreateTLSRegion();
+    memory_reservation.Commit();
 
     return handle_table.SetSize(capabilities.GetHandleTableSize());
 }
 
 void Process::Run(s32 main_thread_priority, u64 stack_size) {
     AllocateMainThreadStack(stack_size);
+    resource_limit->Reserve(LimitableResource::Threads, 1);
+    resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
 
     const std::size_t heap_capacity{memory_usage_capacity - main_thread_stack_size - image_size};
     ASSERT(!page_table->SetHeapCapacity(heap_capacity).IsError());
@@ -330,8 +346,6 @@ void Process::Run(s32 main_thread_priority, u64 stack_size) {
     ChangeStatus(ProcessStatus::Running);
 
     SetupMainThread(system, *this, main_thread_priority, main_thread_stack_top);
-    resource_limit->Reserve(LimitableResource::Threads, 1);
-    resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
 }
 
 void Process::PrepareForTermination() {
@@ -358,6 +372,11 @@ void Process::PrepareForTermination() {
     FreeTLSRegion(tls_region_address);
     tls_region_address = 0;
 
+    if (resource_limit) {
+        resource_limit->Release(LimitableResource::PhysicalMemory,
+                                main_thread_stack_size + image_size);
+    }
+
     ChangeStatus(ProcessStatus::Exited);
 }
 

src/core/hle/kernel/process_capability.cpp

@@ -6,10 +6,10 @@
 
 #include "common/bit_util.h"
 #include "common/logging/log.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/memory/page_table.h"
 #include "core/hle/kernel/process_capability.h"
+#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 namespace {
@@ -123,13 +123,13 @@ ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities,
             // If there's only one, then there's a problem.
             if (i >= num_capabilities) {
                 LOG_ERROR(Kernel, "Invalid combination! i={}", i);
-                return ERR_INVALID_COMBINATION;
+                return ResultInvalidCombination;
             }
 
             const auto size_flags = capabilities[i];
             if (GetCapabilityType(size_flags) != CapabilityType::MapPhysical) {
                 LOG_ERROR(Kernel, "Invalid capability type! size_flags={}", size_flags);
-                return ERR_INVALID_COMBINATION;
+                return ResultInvalidCombination;
             }
 
             const auto result = HandleMapPhysicalFlags(descriptor, size_flags, page_table);
@@ -159,7 +159,7 @@ ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& s
     const auto type = GetCapabilityType(flag);
 
     if (type == CapabilityType::Unset) {
-        return ERR_INVALID_CAPABILITY_DESCRIPTOR;
+        return ResultInvalidCapabilityDescriptor;
     }
 
     // Bail early on ignorable entries, as one would expect,
@@ -176,7 +176,7 @@ ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& s
         LOG_ERROR(Kernel,
                   "Attempted to initialize flags that may only be initialized once. set_flags={}",
                   set_flags);
-        return ERR_INVALID_COMBINATION;
+        return ResultInvalidCombination;
     }
     set_flags |= set_flag;
 
@@ -202,7 +202,7 @@ ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& s
     }
 
     LOG_ERROR(Kernel, "Invalid capability type! type={}", type);
-    return ERR_INVALID_CAPABILITY_DESCRIPTOR;
+    return ResultInvalidCapabilityDescriptor;
 }
 
 void ProcessCapabilities::Clear() {
@@ -225,7 +225,7 @@ ResultCode ProcessCapabilities::HandlePriorityCoreNumFlags(u32 flags) {
     if (priority_mask != 0 || core_mask != 0) {
         LOG_ERROR(Kernel, "Core or priority mask are not zero! priority_mask={}, core_mask={}",
                   priority_mask, core_mask);
-        return ERR_INVALID_CAPABILITY_DESCRIPTOR;
+        return ResultInvalidCapabilityDescriptor;
     }
 
     const u32 core_num_min = (flags >> 16) & 0xFF;
@@ -233,7 +233,7 @@ ResultCode ProcessCapabilities::HandlePriorityCoreNumFlags(u32 flags) {
     if (core_num_min > core_num_max) {
         LOG_ERROR(Kernel, "Core min is greater than core max! core_num_min={}, core_num_max={}",
                   core_num_min, core_num_max);
-        return ERR_INVALID_COMBINATION;
+        return ResultInvalidCombination;
     }
 
     const u32 priority_min = (flags >> 10) & 0x3F;
@@ -242,13 +242,13 @@ ResultCode ProcessCapabilities::HandlePriorityCoreNumFlags(u32 flags) {
         LOG_ERROR(Kernel,
                   "Priority min is greater than priority max! priority_min={}, priority_max={}",
                   core_num_min, priority_max);
-        return ERR_INVALID_COMBINATION;
+        return ResultInvalidCombination;
     }
 
     // The switch only has 4 usable cores.
     if (core_num_max >= 4) {
         LOG_ERROR(Kernel, "Invalid max cores specified! core_num_max={}", core_num_max);
-        return ERR_INVALID_PROCESSOR_ID;
+        return ResultInvalidCoreId;
     }
 
     const auto make_mask = [](u64 min, u64 max) {
@@ -269,7 +269,7 @@ ResultCode ProcessCapabilities::HandleSyscallFlags(u32& set_svc_bits, u32 flags)
 
     // If we've already set this svc before, bail.
     if ((set_svc_bits & svc_bit) != 0) {
-        return ERR_INVALID_COMBINATION;
+        return ResultInvalidCombination;
     }
     set_svc_bits |= svc_bit;
 
@@ -283,7 +283,7 @@ ResultCode ProcessCapabilities::HandleSyscallFlags(u32& set_svc_bits, u32 flags)
 
         if (svc_number >= svc_capabilities.size()) {
             LOG_ERROR(Kernel, "Process svc capability is out of range! svc_number={}", svc_number);
-            return ERR_OUT_OF_RANGE;
+            return ResultOutOfRange;
         }
 
         svc_capabilities[svc_number] = true;
@@ -321,7 +321,7 @@ ResultCode ProcessCapabilities::HandleInterruptFlags(u32 flags) {
         if (interrupt >= interrupt_capabilities.size()) {
             LOG_ERROR(Kernel, "Process interrupt capability is out of range! svc_number={}",
                       interrupt);
-            return ERR_OUT_OF_RANGE;
+            return ResultOutOfRange;
         }
 
         interrupt_capabilities[interrupt] = true;
@@ -334,7 +334,7 @@ ResultCode ProcessCapabilities::HandleProgramTypeFlags(u32 flags) {
     const u32 reserved = flags >> 17;
     if (reserved != 0) {
         LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
-        return ERR_RESERVED_VALUE;
+        return ResultReservedValue;
     }
 
     program_type = static_cast<ProgramType>((flags >> 14) & 0b111);
@@ -354,7 +354,7 @@ ResultCode ProcessCapabilities::HandleKernelVersionFlags(u32 flags) {
         LOG_ERROR(Kernel,
                   "Kernel version is non zero or flags are too small! major_version={}, flags={}",
                   major_version, flags);
-        return ERR_INVALID_CAPABILITY_DESCRIPTOR;
+        return ResultInvalidCapabilityDescriptor;
     }
 
     kernel_version = flags;
@@ -365,7 +365,7 @@ ResultCode ProcessCapabilities::HandleHandleTableFlags(u32 flags) {
     const u32 reserved = flags >> 26;
     if (reserved != 0) {
         LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
-        return ERR_RESERVED_VALUE;
+        return ResultReservedValue;
     }
 
     handle_table_size = static_cast<s32>((flags >> 16) & 0x3FF);
@@ -376,7 +376,7 @@ ResultCode ProcessCapabilities::HandleDebugFlags(u32 flags) {
     const u32 reserved = flags >> 19;
     if (reserved != 0) {
         LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
-        return ERR_RESERVED_VALUE;
+        return ResultReservedValue;
     }
 
     is_debuggable = (flags & 0x20000) != 0;

src/core/hle/kernel/server_port.cpp

@@ -5,11 +5,11 @@
 #include <tuple>
 #include "common/assert.h"
 #include "core/hle/kernel/client_port.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/server_port.h"
 #include "core/hle/kernel/server_session.h"
+#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 
@@ -18,7 +18,7 @@ ServerPort::~ServerPort() = default;
 
 ResultVal<std::shared_ptr<ServerSession>> ServerPort::Accept() {
     if (pending_sessions.empty()) {
-        return ERR_NOT_FOUND;
+        return ResultNotFound;
     }
 
     auto session = std::move(pending_sessions.back());

src/core/hle/kernel/session.cpp

@@ -4,15 +4,23 @@
 
 #include "common/assert.h"
 #include "core/hle/kernel/client_session.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/server_session.h"
 #include "core/hle/kernel/session.h"
 
 namespace Kernel {
 
 Session::Session(KernelCore& kernel) : KSynchronizationObject{kernel} {}
-Session::~Session() = default;
+Session::~Session() {
+    // Release reserved resource when the Session pair was created.
+    kernel.GetSystemResourceLimit()->Release(LimitableResource::Sessions, 1);
+}
 
 Session::SessionPair Session::Create(KernelCore& kernel, std::string name) {
+    // Reserve a new session from the resource limit.
+    KScopedResourceReservation session_reservation(kernel.GetSystemResourceLimit(),
+                                                   LimitableResource::Sessions);
+    ASSERT(session_reservation.Succeeded());
     auto session{std::make_shared<Session>(kernel)};
     auto client_session{Kernel::ClientSession::Create(kernel, session, name + "_Client").Unwrap()};
     auto server_session{Kernel::ServerSession::Create(kernel, session, name + "_Server").Unwrap()};
@@ -21,6 +29,7 @@ Session::SessionPair Session::Create(KernelCore& kernel, std::string name) {
     session->client = client_session;
     session->server = server_session;
 
+    session_reservation.Commit();
     return std::make_pair(std::move(client_session), std::move(server_session));
 }
 

src/core/hle/kernel/shared_memory.cpp

@@ -4,6 +4,7 @@
 
 #include "common/assert.h"
 #include "core/core.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/memory/page_table.h"
 #include "core/hle/kernel/shared_memory.h"
@@ -13,7 +14,9 @@ namespace Kernel {
 SharedMemory::SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory)
     : Object{kernel}, device_memory{device_memory} {}
 
-SharedMemory::~SharedMemory() = default;
+SharedMemory::~SharedMemory() {
+    kernel.GetSystemResourceLimit()->Release(LimitableResource::PhysicalMemory, size);
+}
 
 std::shared_ptr<SharedMemory> SharedMemory::Create(
     KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process,
@@ -21,6 +24,11 @@ std::shared_ptr<SharedMemory> SharedMemory::Create(
     Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size,
     std::string name) {
 
+    const auto resource_limit = kernel.GetSystemResourceLimit();
+    KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory,
+                                                  size);
+    ASSERT(memory_reservation.Succeeded());
+
     std::shared_ptr<SharedMemory> shared_memory{
         std::make_shared<SharedMemory>(kernel, device_memory)};
 
@@ -32,6 +40,7 @@ std::shared_ptr<SharedMemory> SharedMemory::Create(
     shared_memory->size = size;
     shared_memory->name = name;
 
+    memory_reservation.Commit();
     return shared_memory;
 }
 

src/core/hle/kernel/svc.cpp

@@ -23,7 +23,6 @@
 #include "core/cpu_manager.h"
 #include "core/hle/kernel/client_port.h"
 #include "core/hle/kernel/client_session.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/k_address_arbiter.h"
 #include "core/hle/kernel/k_condition_variable.h"
@@ -31,6 +30,7 @@
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/k_thread.h"
@@ -71,49 +71,49 @@ ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr ds
                                       VAddr src_addr, u64 size) {
     if (!Common::Is4KBAligned(dst_addr)) {
         LOG_ERROR(Kernel_SVC, "Destination address is not aligned to 4KB, 0x{:016X}", dst_addr);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(src_addr)) {
         LOG_ERROR(Kernel_SVC, "Source address is not aligned to 4KB, 0x{:016X}", src_addr);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is 0");
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:016X}", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!IsValidAddressRange(dst_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Destination is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
                   dst_addr, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!IsValidAddressRange(src_addr, size)) {
         LOG_ERROR(Kernel_SVC, "Source is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
                   src_addr, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!manager.IsInsideAddressSpace(src_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Source is not within the address space, addr=0x{:016X}, size=0x{:016X}",
                   src_addr, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (manager.IsOutsideStackRegion(dst_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Destination is not within the stack region, addr=0x{:016X}, size=0x{:016X}",
                   dst_addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (manager.IsInsideHeapRegion(dst_addr, size)) {
@@ -121,7 +121,7 @@ ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr ds
                   "Destination does not fit within the heap region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   dst_addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (manager.IsInsideAliasRegion(dst_addr, size)) {
@@ -129,7 +129,7 @@ ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr ds
                   "Destination does not fit within the map region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   dst_addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     return RESULT_SUCCESS;
@@ -138,6 +138,7 @@ ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr ds
 enum class ResourceLimitValueType {
     CurrentValue,
     LimitValue,
+    PeakValue,
 };
 
 ResultVal<s64> RetrieveResourceLimitValue(Core::System& system, Handle resource_limit,
@@ -146,7 +147,7 @@ ResultVal<s64> RetrieveResourceLimitValue(Core::System& system, Handle resource_
     const auto type = static_cast<LimitableResource>(resource_type);
     if (!IsValidResourceType(type)) {
         LOG_ERROR(Kernel_SVC, "Invalid resource limit type: '{}'", resource_type);
-        return ERR_INVALID_ENUM_VALUE;
+        return ResultInvalidEnumValue;
     }
 
     const auto* const current_process = system.Kernel().CurrentProcess();
@@ -157,14 +158,20 @@ ResultVal<s64> RetrieveResourceLimitValue(Core::System& system, Handle resource_
     if (!resource_limit_object) {
         LOG_ERROR(Kernel_SVC, "Handle to non-existent resource limit instance used. Handle={:08X}",
                   resource_limit);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
-    if (value_type == ResourceLimitValueType::CurrentValue) {
+    switch (value_type) {
+    case ResourceLimitValueType::CurrentValue:
         return MakeResult(resource_limit_object->GetCurrentValue(type));
+    case ResourceLimitValueType::LimitValue:
+        return MakeResult(resource_limit_object->GetLimitValue(type));
+    case ResourceLimitValueType::PeakValue:
+        return MakeResult(resource_limit_object->GetPeakValue(type));
+    default:
+        LOG_ERROR(Kernel_SVC, "Invalid resource value_type: '{}'", value_type);
+        return ResultInvalidEnumValue;
     }
-
-    return MakeResult(resource_limit_object->GetLimitValue(type));
 }
 } // Anonymous namespace
 
@@ -177,12 +184,12 @@ static ResultCode SetHeapSize(Core::System& system, VAddr* heap_addr, u64 heap_s
     if ((heap_size % 0x200000) != 0) {
         LOG_ERROR(Kernel_SVC, "The heap size is not a multiple of 2MB, heap_size=0x{:016X}",
                   heap_size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (heap_size >= 0x200000000) {
         LOG_ERROR(Kernel_SVC, "The heap size is not less than 8GB, heap_size=0x{:016X}", heap_size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
@@ -208,19 +215,19 @@ static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 si
 
     if (!Common::Is4KBAligned(address)) {
         LOG_ERROR(Kernel_SVC, "Address not page aligned (0x{:016X})", address);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (size == 0 || !Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Invalid size (0x{:X}). Size must be non-zero and page aligned.",
                   size);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!IsValidAddressRange(address, size)) {
         LOG_ERROR(Kernel_SVC, "Address range overflowed (Address: 0x{:016X}, Size: 0x{:016X})",
                   address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     const auto attributes{static_cast<Memory::MemoryAttribute>(mask | attribute)};
@@ -229,7 +236,7 @@ static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 si
         LOG_ERROR(Kernel_SVC,
                   "Memory attribute doesn't match the given mask (Attribute: 0x{:X}, Mask: {:X}",
                   attribute, mask);
-        return ERR_INVALID_COMBINATION;
+        return ResultInvalidCombination;
     }
 
     auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
@@ -293,7 +300,7 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle,
         LOG_ERROR(Kernel_SVC,
                   "Port Name Address is not a valid virtual address, port_name_address=0x{:016X}",
                   port_name_address);
-        return ERR_NOT_FOUND;
+        return ResultNotFound;
     }
 
     static constexpr std::size_t PortNameMaxLength = 11;
@@ -302,7 +309,7 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle,
     if (port_name.size() > PortNameMaxLength) {
         LOG_ERROR(Kernel_SVC, "Port name is too long, expected {} but got {}", PortNameMaxLength,
                   port_name.size());
-        return ERR_OUT_OF_RANGE;
+        return ResultOutOfRange;
     }
 
     LOG_TRACE(Kernel_SVC, "called port_name={}", port_name);
@@ -311,11 +318,9 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle,
     const auto it = kernel.FindNamedPort(port_name);
     if (!kernel.IsValidNamedPort(it)) {
         LOG_WARNING(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
-        return ERR_NOT_FOUND;
+        return ResultNotFound;
     }
 
-    ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(LimitableResource::Sessions, 1));
-
     auto client_port = it->second;
 
     std::shared_ptr<ClientSession> client_session;
@@ -340,7 +345,7 @@ static ResultCode SendSyncRequest(Core::System& system, Handle handle) {
     std::shared_ptr<ClientSession> session = handle_table.Get<ClientSession>(handle);
     if (!session) {
         LOG_ERROR(Kernel_SVC, "called with invalid handle=0x{:08X}", handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
@@ -405,7 +410,7 @@ static ResultCode GetProcessId(Core::System& system, u64* process_id, Handle han
         const Process* const owner_process = thread->GetOwnerProcess();
         if (!owner_process) {
             LOG_ERROR(Kernel_SVC, "Non-existent owning process encountered.");
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         *process_id = owner_process->GetProcessID();
@@ -415,7 +420,7 @@ static ResultCode GetProcessId(Core::System& system, u64* process_id, Handle han
     // NOTE: This should also handle debug objects before returning.
 
     LOG_ERROR(Kernel_SVC, "Handle does not exist, handle=0x{:08X}", handle);
-    return ERR_INVALID_HANDLE;
+    return ResultInvalidHandle;
 }
 
 static ResultCode GetProcessId32(Core::System& system, u32* process_id_low, u32* process_id_high,
@@ -438,7 +443,7 @@ static ResultCode WaitSynchronization(Core::System& system, s32* index, VAddr ha
         LOG_ERROR(Kernel_SVC,
                   "Handle address is not a valid virtual address, handle_address=0x{:016X}",
                   handles_address);
-        return ERR_INVALID_POINTER;
+        return ResultInvalidPointer;
     }
 
     static constexpr u64 MaxHandles = 0x40;
@@ -446,7 +451,7 @@ static ResultCode WaitSynchronization(Core::System& system, s32* index, VAddr ha
     if (handle_count > MaxHandles) {
         LOG_ERROR(Kernel_SVC, "Handle count specified is too large, expected {} but got {}",
                   MaxHandles, handle_count);
-        return ERR_OUT_OF_RANGE;
+        return ResultOutOfRange;
     }
 
     auto& kernel = system.Kernel();
@@ -459,7 +464,7 @@ static ResultCode WaitSynchronization(Core::System& system, s32* index, VAddr ha
 
         if (object == nullptr) {
             LOG_ERROR(Kernel_SVC, "Object is a nullptr");
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         objects[i] = object.get();
@@ -481,6 +486,7 @@ static ResultCode CancelSynchronization(Core::System& system, Handle thread_hand
     // Get the thread from its handle.
     const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
     std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle);
+
     if (!thread) {
         LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", thread_handle);
         return ResultInvalidHandle;
@@ -525,6 +531,7 @@ static ResultCode ArbitrateUnlock(Core::System& system, VAddr address) {
     LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address);
 
     // Validate the input address.
+
     if (Memory::IsKernelAddress(address)) {
         LOG_ERROR(Kernel_SVC,
                   "Attempting to arbitrate an unlock on a kernel address (address={:08X})",
@@ -735,7 +742,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         if (info_sub_id != 0) {
             LOG_ERROR(Kernel_SVC, "Info sub id is non zero! info_id={}, info_sub_id={}", info_id,
                       info_sub_id);
-            return ERR_INVALID_ENUM_VALUE;
+            return ResultInvalidEnumValue;
         }
 
         const auto& current_process_handle_table =
@@ -744,7 +751,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         if (!process) {
             LOG_ERROR(Kernel_SVC, "Process is not valid! info_id={}, info_sub_id={}, handle={:08X}",
                       info_id, info_sub_id, handle);
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         switch (info_id_type) {
@@ -826,7 +833,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         }
 
         LOG_ERROR(Kernel_SVC, "Unimplemented svcGetInfo id=0x{:016X}", info_id);
-        return ERR_INVALID_ENUM_VALUE;
+        return ResultInvalidEnumValue;
     }
 
     case GetInfoType::IsCurrentProcessBeingDebugged:
@@ -836,13 +843,13 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
     case GetInfoType::RegisterResourceLimit: {
         if (handle != 0) {
             LOG_ERROR(Kernel, "Handle is non zero! handle={:08X}", handle);
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         if (info_sub_id != 0) {
             LOG_ERROR(Kernel, "Info sub id is non zero! info_id={}, info_sub_id={}", info_id,
                       info_sub_id);
-            return ERR_INVALID_COMBINATION;
+            return ResultInvalidCombination;
         }
 
         Process* const current_process = system.Kernel().CurrentProcess();
@@ -867,13 +874,13 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         if (handle != 0) {
             LOG_ERROR(Kernel_SVC, "Process Handle is non zero, expected 0 result but got {:016X}",
                       handle);
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         if (info_sub_id >= Process::RANDOM_ENTROPY_SIZE) {
             LOG_ERROR(Kernel_SVC, "Entropy size is out of range, expected {} but got {}",
                       Process::RANDOM_ENTROPY_SIZE, info_sub_id);
-            return ERR_INVALID_COMBINATION;
+            return ResultInvalidCombination;
         }
 
         *result = system.Kernel().CurrentProcess()->GetRandomEntropy(info_sub_id);
@@ -890,7 +897,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id >= num_cpus) {
             LOG_ERROR(Kernel_SVC, "Core count is out of range, expected {} but got {}", num_cpus,
                       info_sub_id);
-            return ERR_INVALID_COMBINATION;
+            return ResultInvalidCombination;
         }
 
         const auto thread = system.Kernel().CurrentProcess()->GetHandleTable().Get<KThread>(
@@ -898,7 +905,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
         if (!thread) {
             LOG_ERROR(Kernel_SVC, "Thread handle does not exist, handle=0x{:08X}",
                       static_cast<Handle>(handle));
-            return ERR_INVALID_HANDLE;
+            return ResultInvalidHandle;
         }
 
         const auto& core_timing = system.CoreTiming();
@@ -922,7 +929,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
 
     default:
         LOG_ERROR(Kernel_SVC, "Unimplemented svcGetInfo id=0x{:016X}", info_id);
-        return ERR_INVALID_ENUM_VALUE;
+        return ResultInvalidEnumValue;
     }
 }
 
@@ -945,22 +952,22 @@ static ResultCode MapPhysicalMemory(Core::System& system, VAddr addr, u64 size)
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, 0x{:016X}", addr);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:X}", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is zero");
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!(addr < addr + size)) {
         LOG_ERROR(Kernel_SVC, "Size causes 64-bit overflow of address");
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     Process* const current_process{system.Kernel().CurrentProcess()};
@@ -968,21 +975,21 @@ static ResultCode MapPhysicalMemory(Core::System& system, VAddr addr, u64 size)
 
     if (current_process->GetSystemResourceSize() == 0) {
         LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
-        return ERR_INVALID_STATE;
+        return ResultInvalidState;
     }
 
     if (!page_table.IsInsideAddressSpace(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (page_table.IsOutsideAliasRegion(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     return page_table.MapPhysicalMemory(addr, size);
@@ -999,22 +1006,22 @@ static ResultCode UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, 0x{:016X}", addr);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:X}", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is zero");
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!(addr < addr + size)) {
         LOG_ERROR(Kernel_SVC, "Size causes 64-bit overflow of address");
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     Process* const current_process{system.Kernel().CurrentProcess()};
@@ -1022,21 +1029,21 @@ static ResultCode UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size
 
     if (current_process->GetSystemResourceSize() == 0) {
         LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
-        return ERR_INVALID_STATE;
+        return ResultInvalidState;
     }
 
     if (!page_table.IsInsideAddressSpace(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (page_table.IsOutsideAliasRegion(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     return page_table.UnmapPhysicalMemory(addr, size);
@@ -1206,23 +1213,23 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, addr=0x{:016X}", addr);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is 0");
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, size=0x{:016X}", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!IsValidAddressRange(addr, size)) {
         LOG_ERROR(Kernel_SVC, "Region is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
                   addr, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     const auto permission_type = static_cast<Memory::MemoryPermission>(permissions);
@@ -1230,7 +1237,7 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
         Memory::MemoryPermission::ReadAndWrite) {
         LOG_ERROR(Kernel_SVC, "Expected Read or ReadWrite permission but got permissions=0x{:08X}",
                   permissions);
-        return ERR_INVALID_MEMORY_PERMISSIONS;
+        return ResultInvalidMemoryPermissions;
     }
 
     auto* const current_process{system.Kernel().CurrentProcess()};
@@ -1241,7 +1248,7 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
                   "Addr does not fit within the valid region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (page_table.IsInsideHeapRegion(addr, size)) {
@@ -1249,7 +1256,7 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
                   "Addr does not fit within the heap region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     if (page_table.IsInsideAliasRegion(addr, size)) {
@@ -1257,14 +1264,14 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han
                   "Address does not fit within the map region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   addr, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     auto shared_memory{current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle)};
     if (!shared_memory) {
         LOG_ERROR(Kernel_SVC, "Shared memory does not exist, shared_memory_handle=0x{:08X}",
                   shared_memory_handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     return shared_memory->Map(*current_process, addr, size, permission_type);
@@ -1285,7 +1292,7 @@ static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_add
     if (!process) {
         LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}",
                   process_handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     auto& memory{system.Memory()};
@@ -1332,18 +1339,18 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
     if (!Common::Is4KBAligned(src_address)) {
         LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
                   src_address);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(dst_address)) {
         LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
                   dst_address);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (size == 0 || !Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X})", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!IsValidAddressRange(dst_address, size)) {
@@ -1351,7 +1358,7 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
                   "Destination address range overflows the address space (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!IsValidAddressRange(src_address, size)) {
@@ -1359,7 +1366,7 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
                   "Source address range overflows the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
@@ -1367,7 +1374,7 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
     if (!process) {
         LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
                   process_handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     auto& page_table = process->PageTable();
@@ -1376,7 +1383,7 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
                   "Source address range is not within the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!page_table.IsInsideASLRRegion(dst_address, size)) {
@@ -1384,7 +1391,7 @@ static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_hand
                   "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     return page_table.MapProcessCodeMemory(dst_address, src_address, size);
@@ -1400,18 +1407,18 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
     if (!Common::Is4KBAligned(dst_address)) {
         LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
                   dst_address);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(src_address)) {
         LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
                   src_address);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (size == 0 || Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size);
-        return ERR_INVALID_SIZE;
+        return ResultInvalidSize;
     }
 
     if (!IsValidAddressRange(dst_address, size)) {
@@ -1419,7 +1426,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
                   "Destination address range overflows the address space (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!IsValidAddressRange(src_address, size)) {
@@ -1427,7 +1434,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
                   "Source address range overflows the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
@@ -1435,7 +1442,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
     if (!process) {
         LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
                   process_handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     auto& page_table = process->PageTable();
@@ -1444,7 +1451,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
                   "Source address range is not within the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     if (!page_table.IsInsideASLRRegion(dst_address, size)) {
@@ -1452,7 +1459,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
                   "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ERR_INVALID_MEMORY_RANGE;
+        return ResultInvalidMemoryRange;
     }
 
     return page_table.UnmapProcessCodeMemory(dst_address, src_address, size);
@@ -1515,8 +1522,13 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
         return ResultInvalidPriority;
     }
 
-    ASSERT(process.GetResourceLimit()->Reserve(
-        LimitableResource::Threads, 1, system.CoreTiming().GetGlobalTimeNs().count() + 100000000));
+    KScopedResourceReservation thread_reservation(
+        kernel.CurrentProcess(), LimitableResource::Threads, 1,
+        system.CoreTiming().GetGlobalTimeNs().count() + 100000000);
+    if (!thread_reservation.Succeeded()) {
+        LOG_ERROR(Kernel_SVC, "Could not reserve a new thread");
+        return ResultResourceLimitedExceeded;
+    }
 
     std::shared_ptr<KThread> thread;
     {
@@ -1536,6 +1548,7 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
     // Set the thread name for debugging purposes.
     thread->SetName(
         fmt::format("thread[entry_point={:X}, handle={:X}]", entry_point, *new_thread_handle));
+    thread_reservation.Commit();
 
     return RESULT_SUCCESS;
 }
@@ -1844,7 +1857,7 @@ static ResultCode ResetSignal(Core::System& system, Handle handle) {
 
     LOG_ERROR(Kernel_SVC, "invalid handle (0x{:08X})", handle);
 
-    return Svc::ResultInvalidHandle;
+    return ResultInvalidHandle;
 }
 
 static ResultCode ResetSignal32(Core::System& system, Handle handle) {
@@ -1860,18 +1873,18 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address ({:016X}) is not page aligned!", addr);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!Common::Is4KBAligned(size) || size == 0) {
         LOG_ERROR(Kernel_SVC, "Size ({:016X}) is not page aligned or equal to zero!", size);
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     if (!IsValidAddressRange(addr, size)) {
         LOG_ERROR(Kernel_SVC, "Address and size cause overflow! (address={:016X}, size={:016X})",
                   addr, size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     const auto perms{static_cast<Memory::MemoryPermission>(permissions)};
@@ -1879,10 +1892,17 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
         perms == Memory::MemoryPermission::Write) {
         LOG_ERROR(Kernel_SVC, "Invalid memory permissions for transfer memory! (perms={:08X})",
                   permissions);
-        return ERR_INVALID_MEMORY_PERMISSIONS;
+        return ResultInvalidMemoryPermissions;
     }
 
     auto& kernel = system.Kernel();
+    // Reserve a new transfer memory from the process resource limit.
+    KScopedResourceReservation trmem_reservation(kernel.CurrentProcess(),
+                                                 LimitableResource::TransferMemory);
+    if (!trmem_reservation.Succeeded()) {
+        LOG_ERROR(Kernel_SVC, "Could not reserve a new transfer memory");
+        return ResultResourceLimitedExceeded;
+    }
     auto transfer_mem_handle = TransferMemory::Create(kernel, system.Memory(), addr, size, perms);
 
     if (const auto reserve_result{transfer_mem_handle->Reserve()}; reserve_result.IsError()) {
@@ -1894,6 +1914,7 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
     if (result.Failed()) {
         return result.Code();
     }
+    trmem_reservation.Commit();
 
     *handle = *result;
     return RESULT_SUCCESS;
@@ -1989,7 +2010,6 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle,
         LOG_ERROR(Kernel_SVC, "Unable to successfully set core mask (result={})", set_result.raw);
         return set_result;
     }
-
     return RESULT_SUCCESS;
 }
 
@@ -2002,8 +2022,17 @@ static ResultCode SetThreadCoreMask32(Core::System& system, Handle thread_handle
 static ResultCode SignalEvent(Core::System& system, Handle event_handle) {
     LOG_DEBUG(Kernel_SVC, "called, event_handle=0x{:08X}", event_handle);
 
+    auto& kernel = system.Kernel();
     // Get the current handle table.
-    const HandleTable& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
+    const HandleTable& handle_table = kernel.CurrentProcess()->GetHandleTable();
+
+    // Reserve a new event from the process resource limit.
+    KScopedResourceReservation event_reservation(kernel.CurrentProcess(),
+                                                 LimitableResource::Events);
+    if (!event_reservation.Succeeded()) {
+        LOG_ERROR(Kernel, "Could not reserve a new event");
+        return ResultResourceLimitedExceeded;
+    }
 
     // Get the writable event.
     auto writable_event = handle_table.Get<KWritableEvent>(event_handle);
@@ -2012,6 +2041,9 @@ static ResultCode SignalEvent(Core::System& system, Handle event_handle) {
         return ResultInvalidHandle;
     }
 
+    // Commit the successfuly reservation.
+    event_reservation.Commit();
+
     return writable_event->Signal();
 }
 
@@ -2043,7 +2075,7 @@ static ResultCode ClearEvent(Core::System& system, Handle event_handle) {
 
     LOG_ERROR(Kernel_SVC, "Event handle does not exist, event_handle=0x{:08X}", event_handle);
 
-    return Svc::ResultInvalidHandle;
+    return ResultInvalidHandle;
 }
 
 static ResultCode ClearEvent32(Core::System& system, Handle event_handle) {
@@ -2106,13 +2138,13 @@ static ResultCode GetProcessInfo(Core::System& system, u64* out, Handle process_
     if (!process) {
         LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}",
                   process_handle);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     const auto info_type = static_cast<InfoType>(type);
     if (info_type != InfoType::Status) {
         LOG_ERROR(Kernel_SVC, "Expected info_type to be Status but got {} instead", type);
-        return ERR_INVALID_ENUM_VALUE;
+        return ResultInvalidEnumValue;
     }
 
     *out = static_cast<u64>(process->GetStatus());
@@ -2174,7 +2206,7 @@ static ResultCode SetResourceLimitLimitValue(Core::System& system, Handle resour
     const auto type = static_cast<LimitableResource>(resource_type);
     if (!IsValidResourceType(type)) {
         LOG_ERROR(Kernel_SVC, "Invalid resource limit type: '{}'", resource_type);
-        return ERR_INVALID_ENUM_VALUE;
+        return ResultInvalidEnumValue;
     }
 
     auto* const current_process = system.Kernel().CurrentProcess();
@@ -2185,16 +2217,16 @@ static ResultCode SetResourceLimitLimitValue(Core::System& system, Handle resour
     if (!resource_limit_object) {
         LOG_ERROR(Kernel_SVC, "Handle to non-existent resource limit instance used. Handle={:08X}",
                   resource_limit);
-        return ERR_INVALID_HANDLE;
+        return ResultInvalidHandle;
     }
 
     const auto set_result = resource_limit_object->SetLimitValue(type, static_cast<s64>(value));
     if (set_result.IsError()) {
-        LOG_ERROR(
-            Kernel_SVC,
-            "Attempted to lower resource limit ({}) for category '{}' below its current value ({})",
-            resource_limit_object->GetLimitValue(type), resource_type,
-            resource_limit_object->GetCurrentValue(type));
+        LOG_ERROR(Kernel_SVC,
+                  "Attempted to lower resource limit ({}) for category '{}' below its current "
+                  "value ({})",
+                  resource_limit_object->GetLimitValue(type), resource_type,
+                  resource_limit_object->GetCurrentValue(type));
         return set_result;
     }
 
@@ -2211,7 +2243,7 @@ static ResultCode GetProcessList(Core::System& system, u32* out_num_processes,
         LOG_ERROR(Kernel_SVC,
                   "Supplied size outside [0, 0x0FFFFFFF] range. out_process_ids_size={}",
                   out_process_ids_size);
-        return ERR_OUT_OF_RANGE;
+        return ResultOutOfRange;
     }
 
     const auto& kernel = system.Kernel();
@@ -2221,7 +2253,7 @@ static ResultCode GetProcessList(Core::System& system, u32* out_num_processes,
                                         out_process_ids, total_copy_size)) {
         LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
                   out_process_ids, out_process_ids + total_copy_size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     auto& memory = system.Memory();
@@ -2250,7 +2282,7 @@ static ResultCode GetThreadList(Core::System& system, u32* out_num_threads, VAdd
     if ((out_thread_ids_size & 0xF0000000) != 0) {
         LOG_ERROR(Kernel_SVC, "Supplied size outside [0, 0x0FFFFFFF] range. size={}",
                   out_thread_ids_size);
-        return ERR_OUT_OF_RANGE;
+        return ResultOutOfRange;
     }
 
     const auto* const current_process = system.Kernel().CurrentProcess();
@@ -2260,7 +2292,7 @@ static ResultCode GetThreadList(Core::System& system, u32* out_num_threads, VAdd
         !current_process->PageTable().IsInsideAddressSpace(out_thread_ids, total_copy_size)) {
         LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
                   out_thread_ids, out_thread_ids + total_copy_size);
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidCurrentMemory;
     }
 
     auto& memory = system.Memory();

src/core/hle/kernel/svc_results.h

@@ -1,4 +1,4 @@
-// Copyright 2020 yuzu emulator team
+// Copyright 2018 yuzu emulator team
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -6,21 +6,36 @@
 
 #include "core/hle/result.h"
 
-namespace Kernel::Svc {
+namespace Kernel {
 
+// Confirmed Switch kernel error codes
+
+constexpr ResultCode ResultMaxConnectionsReached{ErrorModule::Kernel, 7};
+constexpr ResultCode ResultInvalidCapabilityDescriptor{ErrorModule::Kernel, 14};
 constexpr ResultCode ResultNoSynchronizationObject{ErrorModule::Kernel, 57};
 constexpr ResultCode ResultTerminationRequested{ErrorModule::Kernel, 59};
+constexpr ResultCode ResultInvalidSize{ErrorModule::Kernel, 101};
 constexpr ResultCode ResultInvalidAddress{ErrorModule::Kernel, 102};
 constexpr ResultCode ResultOutOfResource{ErrorModule::Kernel, 103};
+constexpr ResultCode ResultOutOfMemory{ErrorModule::Kernel, 104};
+constexpr ResultCode ResultHandleTableFull{ErrorModule::Kernel, 105};
 constexpr ResultCode ResultInvalidCurrentMemory{ErrorModule::Kernel, 106};
+constexpr ResultCode ResultInvalidMemoryPermissions{ErrorModule::Kernel, 108};
+constexpr ResultCode ResultInvalidMemoryRange{ErrorModule::Kernel, 110};
 constexpr ResultCode ResultInvalidPriority{ErrorModule::Kernel, 112};
 constexpr ResultCode ResultInvalidCoreId{ErrorModule::Kernel, 113};
 constexpr ResultCode ResultInvalidHandle{ErrorModule::Kernel, 114};
+constexpr ResultCode ResultInvalidPointer{ErrorModule::Kernel, 115};
 constexpr ResultCode ResultInvalidCombination{ErrorModule::Kernel, 116};
 constexpr ResultCode ResultTimedOut{ErrorModule::Kernel, 117};
 constexpr ResultCode ResultCancelled{ErrorModule::Kernel, 118};
+constexpr ResultCode ResultOutOfRange{ErrorModule::Kernel, 119};
 constexpr ResultCode ResultInvalidEnumValue{ErrorModule::Kernel, 120};
+constexpr ResultCode ResultNotFound{ErrorModule::Kernel, 121};
 constexpr ResultCode ResultBusy{ErrorModule::Kernel, 122};
+constexpr ResultCode ResultSessionClosedByRemote{ErrorModule::Kernel, 123};
 constexpr ResultCode ResultInvalidState{ErrorModule::Kernel, 125};
+constexpr ResultCode ResultReservedValue{ErrorModule::Kernel, 126};
+constexpr ResultCode ResultResourceLimitedExceeded{ErrorModule::Kernel, 132};
 
-} // namespace Kernel::Svc
+} // namespace Kernel

src/core/hle/kernel/transfer_memory.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/memory/page_table.h"
 #include "core/hle/kernel/process.h"
@@ -17,6 +18,7 @@ TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory)
 TransferMemory::~TransferMemory() {
     // Release memory region when transfer memory is destroyed
     Reset();
+    owner_process->GetResourceLimit()->Release(LimitableResource::TransferMemory, 1);
 }
 
 std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel,

src/core/hle/service/am/am.cpp

@@ -1047,20 +1047,21 @@ void IStorageAccessor::Write(Kernel::HLERequestContext& ctx) {
 
     const u64 offset{rp.Pop<u64>()};
     const std::vector<u8> data{ctx.ReadBuffer()};
+    const std::size_t size{std::min(data.size(), backing.GetSize() - offset)};
 
-    LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, data.size());
+    LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size);
 
-    if (data.size() > backing.GetSize() - offset) {
+    if (offset > backing.GetSize()) {
         LOG_ERROR(Service_AM,
                   "offset is out of bounds, backing_buffer_sz={}, data_size={}, offset={}",
-                  backing.GetSize(), data.size(), offset);
+                  backing.GetSize(), size, offset);
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(ERR_SIZE_OUT_OF_BOUNDS);
         return;
     }
 
-    std::memcpy(backing.GetData().data() + offset, data.data(), data.size());
+    std::memcpy(backing.GetData().data() + offset, data.data(), size);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -1070,11 +1071,11 @@ void IStorageAccessor::Read(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
 
     const u64 offset{rp.Pop<u64>()};
-    const std::size_t size{ctx.GetWriteBufferSize()};
+    const std::size_t size{std::min(ctx.GetWriteBufferSize(), backing.GetSize() - offset)};
 
     LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size);
 
-    if (size > backing.GetSize() - offset) {
+    if (offset > backing.GetSize()) {
         LOG_ERROR(Service_AM, "offset is out of bounds, backing_buffer_sz={}, size={}, offset={}",
                   backing.GetSize(), size, offset);
 

src/core/hle/service/am/applets/controller.cpp

@@ -211,7 +211,8 @@ void Controller::Execute() {
     case ControllerSupportMode::ShowControllerFirmwareUpdate:
         UNIMPLEMENTED_MSG("ControllerSupportMode={} is not implemented",
                           controller_private_arg.mode);
-        [[fallthrough]];
+        ConfigurationComplete();
+        break;
     default: {
         ConfigurationComplete();
         break;

src/core/hle/service/am/applets/software_keyboard.cpp

@@ -121,6 +121,10 @@ void SoftwareKeyboard::ExecuteInteractive() {
         std::memcpy(&request, data.data(), sizeof(Request));
 
         switch (request) {
+        case Request::Finalize:
+            complete = true;
+            broker.SignalStateChanged();
+            break;
         case Request::Calc: {
             broker.PushNormalDataFromApplet(std::make_shared<IStorage>(system, std::vector<u8>{1}));
             broker.SignalStateChanged();

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

@@ -21,6 +21,7 @@
 
 namespace Service::HID {
 constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
+constexpr s32 HID_TRIGGER_MAX = 0x7fff;
 [[maybe_unused]] constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
 constexpr std::size_t NPAD_OFFSET = 0x9A00;
 constexpr u32 BATTERY_FULL = 2;
@@ -48,6 +49,8 @@ Controller_NPad::NPadControllerType Controller_NPad::MapSettingsTypeToNPad(
         return NPadControllerType::JoyRight;
     case Settings::ControllerType::Handheld:
         return NPadControllerType::Handheld;
+    case Settings::ControllerType::GameCube:
+        return NPadControllerType::GameCube;
     default:
         UNREACHABLE();
         return NPadControllerType::ProController;
@@ -67,6 +70,8 @@ Settings::ControllerType Controller_NPad::MapNPadToSettingsType(
         return Settings::ControllerType::RightJoycon;
     case NPadControllerType::Handheld:
         return Settings::ControllerType::Handheld;
+    case NPadControllerType::GameCube:
+        return Settings::ControllerType::GameCube;
     default:
         UNREACHABLE();
         return Settings::ControllerType::ProController;
@@ -209,6 +214,13 @@ void Controller_NPad::InitNewlyAddedController(std::size_t controller_idx) {
         controller.assignment_mode = NpadAssignments::Single;
         controller.footer_type = AppletFooterUiType::JoyRightHorizontal;
         break;
+    case NPadControllerType::GameCube:
+        controller.style_set.gamecube.Assign(1);
+        // The GC Controller behaves like a wired Pro Controller
+        controller.device_type.fullkey.Assign(1);
+        controller.system_properties.is_vertical.Assign(1);
+        controller.system_properties.use_plus.Assign(1);
+        break;
     case NPadControllerType::Pokeball:
         controller.style_set.palma.Assign(1);
         controller.device_type.palma.Assign(1);
@@ -259,6 +271,7 @@ void Controller_NPad::OnInit() {
         style.joycon_right.Assign(1);
         style.joycon_dual.Assign(1);
         style.fullkey.Assign(1);
+        style.gamecube.Assign(1);
         style.palma.Assign(1);
     }
 
@@ -339,6 +352,7 @@ void Controller_NPad::RequestPadStateUpdate(u32 npad_id) {
     auto& pad_state = npad_pad_states[controller_idx].pad_states;
     auto& lstick_entry = npad_pad_states[controller_idx].l_stick;
     auto& rstick_entry = npad_pad_states[controller_idx].r_stick;
+    auto& trigger_entry = npad_trigger_states[controller_idx];
     const auto& button_state = buttons[controller_idx];
     const auto& analog_state = sticks[controller_idx];
     const auto [stick_l_x_f, stick_l_y_f] =
@@ -404,6 +418,17 @@ void Controller_NPad::RequestPadStateUpdate(u32 npad_id) {
         pad_state.left_sl.Assign(button_state[SL - BUTTON_HID_BEGIN]->GetStatus());
         pad_state.left_sr.Assign(button_state[SR - BUTTON_HID_BEGIN]->GetStatus());
     }
+
+    if (controller_type == NPadControllerType::GameCube) {
+        trigger_entry.l_analog = static_cast<s32>(
+            button_state[ZL - BUTTON_HID_BEGIN]->GetStatus() ? HID_TRIGGER_MAX : 0);
+        trigger_entry.r_analog = static_cast<s32>(
+            button_state[ZR - BUTTON_HID_BEGIN]->GetStatus() ? HID_TRIGGER_MAX : 0);
+        pad_state.zl.Assign(false);
+        pad_state.zr.Assign(button_state[R - BUTTON_HID_BEGIN]->GetStatus());
+        pad_state.l.Assign(button_state[ZL - BUTTON_HID_BEGIN]->GetStatus());
+        pad_state.r.Assign(button_state[ZR - BUTTON_HID_BEGIN]->GetStatus());
+    }
 }
 
 void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
@@ -418,6 +443,11 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
             &npad.joy_left_states,  &npad.joy_right_states, &npad.palma_states,
             &npad.system_ext_states};
 
+        // There is the posibility to have more controllers with analog triggers
+        const std::array<TriggerGeneric*, 1> controller_triggers{
+            &npad.gc_trigger_states,
+        };
+
         for (auto* main_controller : controller_npads) {
             main_controller->common.entry_count = 16;
             main_controller->common.total_entry_count = 17;
@@ -435,6 +465,21 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
             cur_entry.timestamp2 = cur_entry.timestamp;
         }
 
+        for (auto* analog_trigger : controller_triggers) {
+            analog_trigger->entry_count = 16;
+            analog_trigger->total_entry_count = 17;
+
+            const auto& last_entry = analog_trigger->trigger[analog_trigger->last_entry_index];
+
+            analog_trigger->timestamp = core_timing.GetCPUTicks();
+            analog_trigger->last_entry_index = (analog_trigger->last_entry_index + 1) % 17;
+
+            auto& cur_entry = analog_trigger->trigger[analog_trigger->last_entry_index];
+
+            cur_entry.timestamp = last_entry.timestamp + 1;
+            cur_entry.timestamp2 = cur_entry.timestamp;
+        }
+
         const auto& controller_type = connected_controllers[i].type;
 
         if (controller_type == NPadControllerType::None || !connected_controllers[i].is_connected) {
@@ -444,6 +489,7 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
 
         RequestPadStateUpdate(npad_index);
         auto& pad_state = npad_pad_states[npad_index];
+        auto& trigger_state = npad_trigger_states[npad_index];
 
         auto& main_controller =
             npad.fullkey_states.npad[npad.fullkey_states.common.last_entry_index];
@@ -456,6 +502,8 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
         auto& pokeball_entry = npad.palma_states.npad[npad.palma_states.common.last_entry_index];
         auto& libnx_entry =
             npad.system_ext_states.npad[npad.system_ext_states.common.last_entry_index];
+        auto& trigger_entry =
+            npad.gc_trigger_states.trigger[npad.gc_trigger_states.last_entry_index];
 
         libnx_entry.connection_status.raw = 0;
         libnx_entry.connection_status.is_connected.Assign(1);
@@ -524,6 +572,18 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
 
             libnx_entry.connection_status.is_right_connected.Assign(1);
             break;
+        case NPadControllerType::GameCube:
+            main_controller.connection_status.raw = 0;
+            main_controller.connection_status.is_connected.Assign(1);
+            main_controller.connection_status.is_wired.Assign(1);
+            main_controller.pad.pad_states.raw = pad_state.pad_states.raw;
+            main_controller.pad.l_stick = pad_state.l_stick;
+            main_controller.pad.r_stick = pad_state.r_stick;
+            trigger_entry.l_analog = trigger_state.l_analog;
+            trigger_entry.r_analog = trigger_state.r_analog;
+
+            libnx_entry.connection_status.is_wired.Assign(1);
+            break;
         case NPadControllerType::Pokeball:
             pokeball_entry.connection_status.raw = 0;
             pokeball_entry.connection_status.is_connected.Assign(1);
@@ -674,6 +734,7 @@ void Controller_NPad::OnMotionUpdate(const Core::Timing::CoreTiming& core_timing
                 right_sixaxis_entry.orientation = motion_devices[1].orientation;
             }
             break;
+        case NPadControllerType::GameCube:
         case NPadControllerType::Pokeball:
             break;
         }
@@ -1135,6 +1196,8 @@ bool Controller_NPad::IsControllerSupported(NPadControllerType controller) const
             return style.joycon_left;
         case NPadControllerType::JoyRight:
             return style.joycon_right;
+        case NPadControllerType::GameCube:
+            return style.gamecube;
         case NPadControllerType::Pokeball:
             return style.palma;
         default:

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

@@ -51,6 +51,7 @@ public:
         JoyDual,
         JoyLeft,
         JoyRight,
+        GameCube,
         Pokeball,
     };
 
@@ -60,6 +61,7 @@ public:
         JoyconDual = 5,
         JoyconLeft = 6,
         JoyconRight = 7,
+        GameCube = 8,
         Pokeball = 9,
         MaxNpadType = 10,
     };
@@ -389,6 +391,25 @@ private:
     };
     static_assert(sizeof(SixAxisGeneric) == 0x708, "SixAxisGeneric is an invalid size");
 
+    struct TriggerState {
+        s64_le timestamp{};
+        s64_le timestamp2{};
+        s32_le l_analog{};
+        s32_le r_analog{};
+    };
+    static_assert(sizeof(TriggerState) == 0x18, "TriggerState is an invalid size");
+
+    struct TriggerGeneric {
+        INSERT_PADDING_BYTES(0x4);
+        s64_le timestamp;
+        INSERT_PADDING_BYTES(0x4);
+        s64_le total_entry_count;
+        s64_le last_entry_index;
+        s64_le entry_count;
+        std::array<TriggerState, 17> trigger{};
+    };
+    static_assert(sizeof(TriggerGeneric) == 0x1C8, "TriggerGeneric is an invalid size");
+
     struct NPadSystemProperties {
         union {
             s64_le raw{};
@@ -509,7 +530,9 @@ private:
         AppletFooterUiType footer_type;
         // nfc_states needs to be checked switchbrew does not match with HW
         NfcXcdHandle nfc_states;
-        INSERT_PADDING_BYTES(0xdef);
+        INSERT_PADDING_BYTES(0x8); // Mutex
+        TriggerGeneric gc_trigger_states;
+        INSERT_PADDING_BYTES(0xc1f);
     };
     static_assert(sizeof(NPadEntry) == 0x5000, "NPadEntry is an invalid size");
 
@@ -560,6 +583,7 @@ private:
     f32 sixaxis_fusion_parameter2{};
     bool sixaxis_at_rest{true};
     std::array<ControllerPad, 10> npad_pad_states{};
+    std::array<TriggerState, 10> npad_trigger_states{};
     bool is_in_lr_assignment_mode{false};
     Core::System& system;
 };

src/core/hle/service/ldn/errors.h

@@ -0,0 +1,13 @@
+// Copyright 2021 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::LDN {
+
+constexpr ResultCode ERROR_DISABLED{ErrorModule::LDN, 22};
+
+} // namespace Service::LDN

src/core/hle/service/ldn/ldn.cpp

@@ -6,6 +6,7 @@
 
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/result.h"
+#include "core/hle/service/ldn/errors.h"
 #include "core/hle/service/ldn/ldn.h"
 #include "core/hle/service/sm/sm.h"
 
@@ -103,7 +104,7 @@ public:
         : ServiceFramework{system_, "IUserLocalCommunicationService"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, nullptr, "GetState"},
+            {0, &IUserLocalCommunicationService::GetState, "GetState"},
             {1, nullptr, "GetNetworkInfo"},
             {2, nullptr, "GetIpv4Address"},
             {3, nullptr, "GetDisconnectReason"},
@@ -138,13 +139,38 @@ public:
         RegisterHandlers(functions);
     }
 
-    void Initialize2(Kernel::HLERequestContext& ctx) {
+    void GetState(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_LDN, "(STUBBED) called");
-        // Result success seem make this services start network and continue.
-        // If we just pass result error then it will stop and maybe try again and again.
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(RESULT_UNKNOWN);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+
+        // Indicate a network error, as we do not actually emulate LDN
+        rb.Push(static_cast<u32>(State::Error));
+
+        rb.Push(RESULT_SUCCESS);
     }
+
+    void Initialize2(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LDN, "called");
+
+        is_initialized = true;
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+private:
+    enum class State {
+        None,
+        Initialized,
+        AccessPointOpened,
+        AccessPointCreated,
+        StationOpened,
+        StationConnected,
+        Error,
+    };
+
+    bool is_initialized{};
 };
 
 class LDNS final : public ServiceFramework<LDNS> {

src/core/hle/service/ldr/ldr.cpp

@@ -11,10 +11,10 @@
 #include "common/scope_exit.h"
 #include "core/core.h"
 #include "core/hle/ipc_helpers.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/memory/page_table.h"
 #include "core/hle/kernel/memory/system_control.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/kernel/svc_results.h"
 #include "core/hle/service/ldr/ldr.h"
 #include "core/hle/service/service.h"
 #include "core/loader/nro.h"
@@ -330,7 +330,7 @@ public:
             const VAddr addr{GetRandomMapRegion(page_table, size)};
             const ResultCode result{page_table.MapProcessCodeMemory(addr, baseAddress, size)};
 
-            if (result == Kernel::ERR_INVALID_ADDRESS_STATE) {
+            if (result == Kernel::ResultInvalidCurrentMemory) {
                 continue;
             }
 
@@ -361,7 +361,7 @@ public:
                 const ResultCode result{
                     page_table.MapProcessCodeMemory(addr + nro_size, bss_addr, bss_size)};
 
-                if (result == Kernel::ERR_INVALID_ADDRESS_STATE) {
+                if (result == Kernel::ResultInvalidCurrentMemory) {
                     continue;
                 }
 

src/core/hle/service/nfp/nfp.cpp

@@ -215,7 +215,7 @@ private:
         const auto& amiibo = nfp_interface.GetAmiiboBuffer();
         const TagInfo tag_info{
             .uuid = amiibo.uuid,
-            .uuid_length = static_cast<u8>(tag_info.uuid.size()),
+            .uuid_length = static_cast<u8>(amiibo.uuid.size()),
             .padding_1 = {},
             .protocol = 1, // TODO(ogniK): Figure out actual values
             .tag_type = 2,

src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp

@@ -34,8 +34,7 @@ NvResult nvhost_nvdec::Ioctl1(Ioctl command, const std::vector<u8>& input,
         case 0xa: {
             if (command.length == 0x1c) {
                 LOG_INFO(Service_NVDRV, "NVDEC video stream ended");
-                Tegra::ChCommandHeaderList cmdlist(1);
-                cmdlist[0] = Tegra::ChCommandHeader{0xDEADB33F};
+                Tegra::ChCommandHeaderList cmdlist{{0xDEADB33F}};
                 system.GPU().PushCommandBuffer(cmdlist);
             }
             return UnmapBuffer(input, output);

src/core/hle/service/nvdrv/devices/nvhost_vic.cpp

@@ -28,8 +28,13 @@ NvResult nvhost_vic::Ioctl1(Ioctl command, const std::vector<u8>& input, std::ve
             return GetWaitbase(input, output);
         case 0x9:
             return MapBuffer(input, output);
-        case 0xa:
+        case 0xa: {
+            if (command.length == 0x1c) {
+                Tegra::ChCommandHeaderList cmdlist{{0xDEADB33F}};
+                system.GPU().PushCommandBuffer(cmdlist);
+            }
             return UnmapBuffer(input, output);
+        }
         default:
             break;
         }

src/core/hle/service/sockets/bsd.cpp

@@ -453,7 +453,8 @@ std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protoco
         return {-1, Errno::MFILE};
     }
 
-    FileDescriptor& descriptor = file_descriptors[fd].emplace();
+    file_descriptors[fd] = FileDescriptor{};
+    FileDescriptor& descriptor = *file_descriptors[fd];
     // ENONMEM might be thrown here
 
     LOG_INFO(Service, "New socket fd={}", fd);
@@ -548,7 +549,8 @@ std::pair<s32, Errno> BSD::AcceptImpl(s32 fd, std::vector<u8>& write_buffer) {
         return {-1, Translate(bsd_errno)};
     }
 
-    FileDescriptor& new_descriptor = file_descriptors[new_fd].emplace();
+    file_descriptors[new_fd] = FileDescriptor{};
+    FileDescriptor& new_descriptor = *file_descriptors[new_fd];
     new_descriptor.socket = std::move(result.socket);
     new_descriptor.is_connection_based = descriptor.is_connection_based;
 

src/core/hle/service/time/time_manager.cpp

@@ -279,6 +279,10 @@ const SharedMemory& TimeManager::GetSharedMemory() const {
     return impl->shared_memory;
 }
 
+void TimeManager::Shutdown() {
+    impl.reset();
+}
+
 void TimeManager::UpdateLocalSystemClockTime(s64 posix_time) {
     impl->UpdateLocalSystemClockTime(system, posix_time);
 }

src/core/hle/service/time/time_manager.h

@@ -61,6 +61,8 @@ public:
 
     const SharedMemory& GetSharedMemory() const;
 
+    void Shutdown();
+
     void SetupTimeZoneManager(std::string location_name,
                               Clock::SteadyClockTimePoint time_zone_updated_time_point,
                               std::size_t total_location_name_count, u128 time_zone_rule_version,

src/core/settings.h

@@ -181,12 +181,13 @@ struct Values {
     std::string motion_device;
     std::string udp_input_servers;
 
-    bool emulate_analog_keyboard;
-
+    bool mouse_panning;
+    float mouse_panning_sensitivity;
     bool mouse_enabled;
     std::string mouse_device;
     MouseButtonsRaw mouse_buttons;
 
+    bool emulate_analog_keyboard;
     bool keyboard_enabled;
     KeyboardKeysRaw keyboard_keys;
     KeyboardModsRaw keyboard_mods;

src/input_common/mouse/mouse_input.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#include "core/settings.h"
 #include "input_common/mouse/mouse_input.h"
 
 namespace MouseInput {
@@ -32,10 +33,18 @@ void Mouse::UpdateThread() {
             info.motion.UpdateOrientation(update_time * 1000);
             info.tilt_speed = 0;
             info.data.motion = info.motion.GetMotion();
+            if (Settings::values.mouse_panning) {
+                info.last_mouse_change *= 0.96f;
+                info.data.axis = {static_cast<int>(16 * info.last_mouse_change.x),
+                                  static_cast<int>(16 * -info.last_mouse_change.y)};
+            }
         }
         if (configuring) {
             UpdateYuzuSettings();
         }
+        if (mouse_panning_timout++ > 20) {
+            StopPanning();
+        }
         std::this_thread::sleep_for(std::chrono::milliseconds(update_time));
     }
 }
@@ -65,8 +74,45 @@ void Mouse::PressButton(int x, int y, int button_) {
     mouse_info[button_index].data.pressed = true;
 }
 
-void Mouse::MouseMove(int x, int y) {
+void Mouse::StopPanning() {
     for (MouseInfo& info : mouse_info) {
+        if (Settings::values.mouse_panning) {
+            info.data.axis = {};
+            info.tilt_speed = 0;
+            info.last_mouse_change = {};
+        }
+    }
+}
+
+void Mouse::MouseMove(int x, int y, int center_x, int center_y) {
+    for (MouseInfo& info : mouse_info) {
+        if (Settings::values.mouse_panning) {
+            auto mouse_change =
+                (Common::MakeVec(x, y) - Common::MakeVec(center_x, center_y)).Cast<float>();
+            mouse_panning_timout = 0;
+
+            if (mouse_change.y == 0 && mouse_change.x == 0) {
+                continue;
+            }
+            const auto mouse_change_length = mouse_change.Length();
+            if (mouse_change_length < 3.0f) {
+                mouse_change /= mouse_change_length / 3.0f;
+            }
+
+            info.last_mouse_change = (info.last_mouse_change * 0.91f) + (mouse_change * 0.09f);
+
+            const auto last_mouse_change_length = info.last_mouse_change.Length();
+            if (last_mouse_change_length > 8.0f) {
+                info.last_mouse_change /= last_mouse_change_length / 8.0f;
+            } else if (last_mouse_change_length < 1.0f) {
+                info.last_mouse_change = mouse_change / mouse_change.Length();
+            }
+
+            info.tilt_direction = info.last_mouse_change;
+            info.tilt_speed = info.tilt_direction.Normalize() * info.sensitivity;
+            continue;
+        }
+
         if (info.data.pressed) {
             const auto mouse_move = Common::MakeVec(x, y) - info.mouse_origin;
             const auto mouse_change = Common::MakeVec(x, y) - info.last_mouse_position;

src/input_common/mouse/mouse_input.h

@@ -57,8 +57,10 @@ public:
      * Signals that mouse has moved.
      * @param x the x-coordinate of the cursor
      * @param y the y-coordinate of the cursor
+     * @param center_x the x-coordinate of the middle of the screen
+     * @param center_y the y-coordinate of the middle of the screen
      */
-    void MouseMove(int x, int y);
+    void MouseMove(int x, int y, int center_x, int center_y);
 
     /**
      * Signals that a motion sensor tilt has ended.
@@ -74,11 +76,13 @@ public:
 private:
     void UpdateThread();
     void UpdateYuzuSettings();
+    void StopPanning();
 
     struct MouseInfo {
         InputCommon::MotionInput motion{0.0f, 0.0f, 0.0f};
         Common::Vec2<int> mouse_origin;
         Common::Vec2<int> last_mouse_position;
+        Common::Vec2<float> last_mouse_change;
         bool is_tilting = false;
         float sensitivity{0.120f};
 
@@ -94,5 +98,6 @@ private:
     Common::SPSCQueue<MouseStatus> mouse_queue;
     bool configuring{false};
     bool update_thread_running{true};
+    int mouse_panning_timout{};
 };
 } // namespace MouseInput

src/input_common/mouse/mouse_poller.cpp

@@ -6,6 +6,7 @@
 #include <utility>
 
 #include "common/threadsafe_queue.h"
+#include "core/settings.h"
 #include "input_common/mouse/mouse_input.h"
 #include "input_common/mouse/mouse_poller.h"
 
@@ -71,7 +72,7 @@ public:
         std::lock_guard lock{mutex};
         const auto axis_value =
             static_cast<float>(mouse_input->GetMouseState(button).axis.at(axis));
-        return axis_value / (100.0f * range);
+        return axis_value * Settings::values.mouse_panning_sensitivity / (100.0f * range);
     }
 
     std::pair<float, float> GetAnalog(u32 analog_axis_x, u32 analog_axis_y) const {

src/input_common/settings.h

@@ -340,6 +340,7 @@ enum class ControllerType {
     LeftJoycon,
     RightJoycon,
     Handheld,
+    GameCube,
 };
 
 struct PlayerInput {

src/tests/CMakeLists.txt

@@ -1,5 +1,6 @@
 add_executable(tests
     common/bit_field.cpp
+    common/cityhash.cpp
     common/fibers.cpp
     common/param_package.cpp
     common/ring_buffer.cpp

src/tests/common/cityhash.cpp

@@ -0,0 +1,22 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <catch2/catch.hpp>
+
+#include "common/cityhash.h"
+
+constexpr char msg[] = "The blue frogs are singing under the crimson sky.\n"
+                       "It is time to run, Robert.";
+
+using namespace Common;
+
+TEST_CASE("CityHash", "[common]") {
+    // These test results were built against a known good version.
+    REQUIRE(CityHash64(msg, sizeof(msg)) == 0x92d5c2e9cbfbbc01);
+    REQUIRE(CityHash64WithSeed(msg, sizeof(msg), 0xdead) == 0xbfbe93f21a2820dd);
+    REQUIRE(CityHash64WithSeeds(msg, sizeof(msg), 0xbeef, 0xcafe) == 0xb343317955fc8a06);
+    REQUIRE(CityHash128(msg, sizeof(msg)) == u128{0x98e60d0423747eaa, 0xd8694c5b6fcaede9});
+    REQUIRE(CityHash128WithSeed(msg, sizeof(msg), {0xdead, 0xbeef}) ==
+            u128{0xf0307dba81199ebe, 0xd77764e0c4a9eb74});
+}

src/tests/video_core/buffer_base.cpp

@@ -471,3 +471,79 @@ TEST_CASE("BufferBase: Unaligned page region query") {
     REQUIRE(buffer.IsRegionCpuModified(c + 4000, 1000));
     REQUIRE(buffer.IsRegionCpuModified(c + 4000, 1));
 }
+
+TEST_CASE("BufferBase: Cached write") {
+    RasterizerInterface rasterizer;
+    BufferBase buffer(rasterizer, c, WORD);
+    buffer.UnmarkRegionAsCpuModified(c, WORD);
+    buffer.CachedCpuWrite(c + PAGE, PAGE);
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.FlushCachedWrites();
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.MarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 0);
+}
+
+TEST_CASE("BufferBase: Multiple cached write") {
+    RasterizerInterface rasterizer;
+    BufferBase buffer(rasterizer, c, WORD);
+    buffer.UnmarkRegionAsCpuModified(c, WORD);
+    buffer.CachedCpuWrite(c + PAGE, PAGE);
+    buffer.CachedCpuWrite(c + PAGE * 3, PAGE);
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE * 3, PAGE));
+    buffer.FlushCachedWrites();
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE * 3, PAGE));
+    buffer.MarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 0);
+}
+
+TEST_CASE("BufferBase: Cached write unmarked") {
+    RasterizerInterface rasterizer;
+    BufferBase buffer(rasterizer, c, WORD);
+    buffer.UnmarkRegionAsCpuModified(c, WORD);
+    buffer.CachedCpuWrite(c + PAGE, PAGE);
+    buffer.UnmarkRegionAsCpuModified(c + PAGE, PAGE);
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.FlushCachedWrites();
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.MarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 0);
+}
+
+TEST_CASE("BufferBase: Cached write iterated") {
+    RasterizerInterface rasterizer;
+    BufferBase buffer(rasterizer, c, WORD);
+    buffer.UnmarkRegionAsCpuModified(c, WORD);
+    buffer.CachedCpuWrite(c + PAGE, PAGE);
+    int num = 0;
+    buffer.ForEachUploadRange(c, WORD, [&](u64 offset, u64 size) { ++num; });
+    REQUIRE(num == 0);
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.FlushCachedWrites();
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    buffer.MarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 0);
+}
+
+TEST_CASE("BufferBase: Cached write downloads") {
+    RasterizerInterface rasterizer;
+    BufferBase buffer(rasterizer, c, WORD);
+    buffer.UnmarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 64);
+    buffer.CachedCpuWrite(c + PAGE, PAGE);
+    REQUIRE(rasterizer.Count() == 63);
+    buffer.MarkRegionAsGpuModified(c + PAGE, PAGE);
+    int num = 0;
+    buffer.ForEachDownloadRange(c, WORD, [&](u64 offset, u64 size) { ++num; });
+    buffer.ForEachUploadRange(c, WORD, [&](u64 offset, u64 size) { ++num; });
+    REQUIRE(num == 0);
+    REQUIRE(!buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    REQUIRE(!buffer.IsRegionGpuModified(c + PAGE, PAGE));
+    buffer.FlushCachedWrites();
+    REQUIRE(buffer.IsRegionCpuModified(c + PAGE, PAGE));
+    REQUIRE(!buffer.IsRegionGpuModified(c + PAGE, PAGE));
+    buffer.MarkRegionAsCpuModified(c, WORD);
+    REQUIRE(rasterizer.Count() == 0);
+}

src/video_core/CMakeLists.txt

@@ -2,10 +2,8 @@ add_subdirectory(host_shaders)
 
 add_library(video_core STATIC
     buffer_cache/buffer_base.h
-    buffer_cache/buffer_block.h
+    buffer_cache/buffer_cache.cpp
     buffer_cache/buffer_cache.h
-    buffer_cache/map_interval.cpp
-    buffer_cache/map_interval.h
     cdma_pusher.cpp
     cdma_pusher.h
     command_classes/codecs/codec.cpp
@@ -152,8 +150,6 @@ add_library(video_core STATIC
     renderer_vulkan/vk_staging_buffer_pool.h
     renderer_vulkan/vk_state_tracker.cpp
     renderer_vulkan/vk_state_tracker.h
-    renderer_vulkan/vk_stream_buffer.cpp
-    renderer_vulkan/vk_stream_buffer.h
     renderer_vulkan/vk_swapchain.cpp
     renderer_vulkan/vk_swapchain.h
     renderer_vulkan/vk_texture_cache.cpp

src/video_core/buffer_cache/buffer_base.h

@@ -19,6 +19,7 @@ namespace VideoCommon {
 
 enum class BufferFlagBits {
     Picked = 1 << 0,
+    CachedWrites = 1 << 1,
 };
 DECLARE_ENUM_FLAG_OPERATORS(BufferFlagBits)
 
@@ -40,7 +41,7 @@ class BufferBase {
     static constexpr u64 BYTES_PER_WORD = PAGES_PER_WORD * BYTES_PER_PAGE;
 
     /// Vector tracking modified pages tightly packed with small vector optimization
-    union WrittenWords {
+    union WordsArray {
         /// Returns the pointer to the words state
         [[nodiscard]] const u64* Pointer(bool is_short) const noexcept {
             return is_short ? &stack : heap;
@@ -55,49 +56,59 @@ class BufferBase {
         u64* heap;     ///< Not-small buffers pointer to the storage
     };
 
-    struct GpuCpuWords {
-        explicit GpuCpuWords() = default;
-        explicit GpuCpuWords(u64 size_bytes_) : size_bytes{size_bytes_} {
+    struct Words {
+        explicit Words() = default;
+        explicit Words(u64 size_bytes_) : size_bytes{size_bytes_} {
             if (IsShort()) {
                 cpu.stack = ~u64{0};
                 gpu.stack = 0;
+                cached_cpu.stack = 0;
+                untracked.stack = ~u64{0};
             } else {
                 // Share allocation between CPU and GPU pages and set their default values
                 const size_t num_words = NumWords();
-                u64* const alloc = new u64[num_words * 2];
+                u64* const alloc = new u64[num_words * 4];
                 cpu.heap = alloc;
                 gpu.heap = alloc + num_words;
+                cached_cpu.heap = alloc + num_words * 2;
+                untracked.heap = alloc + num_words * 3;
                 std::fill_n(cpu.heap, num_words, ~u64{0});
                 std::fill_n(gpu.heap, num_words, 0);
+                std::fill_n(cached_cpu.heap, num_words, 0);
+                std::fill_n(untracked.heap, num_words, ~u64{0});
             }
             // Clean up tailing bits
-            const u64 last_local_page =
-                Common::DivCeil(size_bytes % BYTES_PER_WORD, BYTES_PER_PAGE);
+            const u64 last_word_size = size_bytes % BYTES_PER_WORD;
+            const u64 last_local_page = Common::DivCeil(last_word_size, BYTES_PER_PAGE);
             const u64 shift = (PAGES_PER_WORD - last_local_page) % PAGES_PER_WORD;
-            u64& last_word = cpu.Pointer(IsShort())[NumWords() - 1];
-            last_word = (last_word << shift) >> shift;
+            const u64 last_word = (~u64{0} << shift) >> shift;
+            cpu.Pointer(IsShort())[NumWords() - 1] = last_word;
+            untracked.Pointer(IsShort())[NumWords() - 1] = last_word;
         }
 
-        ~GpuCpuWords() {
+        ~Words() {
             Release();
         }
 
-        GpuCpuWords& operator=(GpuCpuWords&& rhs) noexcept {
+        Words& operator=(Words&& rhs) noexcept {
             Release();
             size_bytes = rhs.size_bytes;
             cpu = rhs.cpu;
             gpu = rhs.gpu;
+            cached_cpu = rhs.cached_cpu;
+            untracked = rhs.untracked;
             rhs.cpu.heap = nullptr;
             return *this;
         }
 
-        GpuCpuWords(GpuCpuWords&& rhs) noexcept
-            : size_bytes{rhs.size_bytes}, cpu{rhs.cpu}, gpu{rhs.gpu} {
+        Words(Words&& rhs) noexcept
+            : size_bytes{rhs.size_bytes}, cpu{rhs.cpu}, gpu{rhs.gpu},
+              cached_cpu{rhs.cached_cpu}, untracked{rhs.untracked} {
             rhs.cpu.heap = nullptr;
         }
 
-        GpuCpuWords& operator=(const GpuCpuWords&) = delete;
-        GpuCpuWords(const GpuCpuWords&) = delete;
+        Words& operator=(const Words&) = delete;
+        Words(const Words&) = delete;
 
         /// Returns true when the buffer fits in the small vector optimization
         [[nodiscard]] bool IsShort() const noexcept {
@@ -118,8 +129,17 @@ class BufferBase {
         }
 
         u64 size_bytes = 0;
-        WrittenWords cpu;
-        WrittenWords gpu;
+        WordsArray cpu;
+        WordsArray gpu;
+        WordsArray cached_cpu;
+        WordsArray untracked;
+    };
+
+    enum class Type {
+        CPU,
+        GPU,
+        CachedCPU,
+        Untracked,
     };
 
 public:
@@ -132,68 +152,93 @@ public:
     BufferBase& operator=(const BufferBase&) = delete;
     BufferBase(const BufferBase&) = delete;
 
+    BufferBase& operator=(BufferBase&&) = default;
+    BufferBase(BufferBase&&) = default;
+
     /// Returns the inclusive CPU modified range in a begin end pair
     [[nodiscard]] std::pair<u64, u64> ModifiedCpuRegion(VAddr query_cpu_addr,
                                                         u64 query_size) const noexcept {
         const u64 offset = query_cpu_addr - cpu_addr;
-        return ModifiedRegion<false>(offset, query_size);
+        return ModifiedRegion<Type::CPU>(offset, query_size);
     }
 
     /// Returns the inclusive GPU modified range in a begin end pair
     [[nodiscard]] std::pair<u64, u64> ModifiedGpuRegion(VAddr query_cpu_addr,
                                                         u64 query_size) const noexcept {
         const u64 offset = query_cpu_addr - cpu_addr;
-        return ModifiedRegion<true>(offset, query_size);
+        return ModifiedRegion<Type::GPU>(offset, query_size);
     }
 
     /// Returns true if a region has been modified from the CPU
     [[nodiscard]] bool IsRegionCpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept {
         const u64 offset = query_cpu_addr - cpu_addr;
-        return IsRegionModified<false>(offset, query_size);
+        return IsRegionModified<Type::CPU>(offset, query_size);
     }
 
     /// Returns true if a region has been modified from the GPU
     [[nodiscard]] bool IsRegionGpuModified(VAddr query_cpu_addr, u64 query_size) const noexcept {
         const u64 offset = query_cpu_addr - cpu_addr;
-        return IsRegionModified<true>(offset, query_size);
+        return IsRegionModified<Type::GPU>(offset, query_size);
     }
 
     /// Mark region as CPU modified, notifying the rasterizer about this change
     void MarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) {
-        ChangeRegionState<true, true>(words.cpu, dirty_cpu_addr, size);
+        ChangeRegionState<Type::CPU, true>(dirty_cpu_addr, size);
     }
 
     /// Unmark region as CPU modified, notifying the rasterizer about this change
     void UnmarkRegionAsCpuModified(VAddr dirty_cpu_addr, u64 size) {
-        ChangeRegionState<false, true>(words.cpu, dirty_cpu_addr, size);
+        ChangeRegionState<Type::CPU, false>(dirty_cpu_addr, size);
     }
 
     /// Mark region as modified from the host GPU
     void MarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept {
-        ChangeRegionState<true, false>(words.gpu, dirty_cpu_addr, size);
+        ChangeRegionState<Type::GPU, true>(dirty_cpu_addr, size);
     }
 
     /// Unmark region as modified from the host GPU
     void UnmarkRegionAsGpuModified(VAddr dirty_cpu_addr, u64 size) noexcept {
-        ChangeRegionState<false, false>(words.gpu, dirty_cpu_addr, size);
+        ChangeRegionState<Type::GPU, false>(dirty_cpu_addr, size);
+    }
+
+    /// Mark region as modified from the CPU
+    /// but don't mark it as modified until FlusHCachedWrites is called.
+    void CachedCpuWrite(VAddr dirty_cpu_addr, u64 size) {
+        flags |= BufferFlagBits::CachedWrites;
+        ChangeRegionState<Type::CachedCPU, true>(dirty_cpu_addr, size);
+    }
+
+    /// Flushes cached CPU writes, and notify the rasterizer about the deltas
+    void FlushCachedWrites() noexcept {
+        flags &= ~BufferFlagBits::CachedWrites;
+        const u64 num_words = NumWords();
+        const u64* const cached_words = Array<Type::CachedCPU>();
+        u64* const untracked_words = Array<Type::Untracked>();
+        u64* const cpu_words = Array<Type::CPU>();
+        for (u64 word_index = 0; word_index < num_words; ++word_index) {
+            const u64 cached_bits = cached_words[word_index];
+            NotifyRasterizer<false>(word_index, untracked_words[word_index], cached_bits);
+            untracked_words[word_index] |= cached_bits;
+            cpu_words[word_index] |= cached_bits;
+        }
     }
 
     /// Call 'func' for each CPU modified range and unmark those pages as CPU modified
     template <typename Func>
     void ForEachUploadRange(VAddr query_cpu_range, u64 size, Func&& func) {
-        ForEachModifiedRange<false, true>(query_cpu_range, size, func);
+        ForEachModifiedRange<Type::CPU>(query_cpu_range, size, func);
     }
 
     /// Call 'func' for each GPU modified range and unmark those pages as GPU modified
     template <typename Func>
     void ForEachDownloadRange(VAddr query_cpu_range, u64 size, Func&& func) {
-        ForEachModifiedRange<true, false>(query_cpu_range, size, func);
+        ForEachModifiedRange<Type::GPU>(query_cpu_range, size, func);
     }
 
     /// Call 'func' for each GPU modified range and unmark those pages as GPU modified
     template <typename Func>
     void ForEachDownloadRange(Func&& func) {
-        ForEachModifiedRange<true, false>(cpu_addr, SizeBytes(), func);
+        ForEachModifiedRange<Type::GPU>(cpu_addr, SizeBytes(), func);
     }
 
     /// Mark buffer as picked
@@ -206,6 +251,16 @@ public:
         flags &= ~BufferFlagBits::Picked;
     }
 
+    /// Increases the likeliness of this being a stream buffer
+    void IncreaseStreamScore(int score) noexcept {
+        stream_score += score;
+    }
+
+    /// Returns the likeliness of this being a stream buffer
+    [[nodiscard]] int StreamScore() const noexcept {
+        return stream_score;
+    }
+
     /// Returns true when vaddr -> vaddr+size is fully contained in the buffer
     [[nodiscard]] bool IsInBounds(VAddr addr, u64 size) const noexcept {
         return addr >= cpu_addr && addr + size <= cpu_addr + SizeBytes();
@@ -216,6 +271,11 @@ public:
         return True(flags & BufferFlagBits::Picked);
     }
 
+    /// Returns true when the buffer has pending cached writes
+    [[nodiscard]] bool HasCachedWrites() const noexcept {
+        return True(flags & BufferFlagBits::CachedWrites);
+    }
+
     /// Returns the base CPU address of the buffer
     [[nodiscard]] VAddr CpuAddr() const noexcept {
         return cpu_addr;
@@ -233,26 +293,48 @@ public:
     }
 
 private:
+    template <Type type>
+    u64* Array() noexcept {
+        if constexpr (type == Type::CPU) {
+            return words.cpu.Pointer(IsShort());
+        } else if constexpr (type == Type::GPU) {
+            return words.gpu.Pointer(IsShort());
+        } else if constexpr (type == Type::CachedCPU) {
+            return words.cached_cpu.Pointer(IsShort());
+        } else if constexpr (type == Type::Untracked) {
+            return words.untracked.Pointer(IsShort());
+        }
+    }
+
+    template <Type type>
+    const u64* Array() const noexcept {
+        if constexpr (type == Type::CPU) {
+            return words.cpu.Pointer(IsShort());
+        } else if constexpr (type == Type::GPU) {
+            return words.gpu.Pointer(IsShort());
+        } else if constexpr (type == Type::CachedCPU) {
+            return words.cached_cpu.Pointer(IsShort());
+        } else if constexpr (type == Type::Untracked) {
+            return words.untracked.Pointer(IsShort());
+        }
+    }
+
     /**
      * Change the state of a range of pages
      *
-     * @param written_words Pages to be marked or unmarked as modified
      * @param dirty_addr    Base address to mark or unmark as modified
      * @param size          Size in bytes to mark or unmark as modified
-     *
-     * @tparam enable            True when the bits will be set to one, false for zero
-     * @tparam notify_rasterizer True when the rasterizer has to be notified about the changes
      */
-    template <bool enable, bool notify_rasterizer>
-    void ChangeRegionState(WrittenWords& written_words, u64 dirty_addr,
-                           s64 size) noexcept(!notify_rasterizer) {
+    template <Type type, bool enable>
+    void ChangeRegionState(u64 dirty_addr, s64 size) noexcept(type == Type::GPU) {
         const s64 difference = dirty_addr - cpu_addr;
         const u64 offset = std::max<s64>(difference, 0);
         size += std::min<s64>(difference, 0);
         if (offset >= SizeBytes() || size < 0) {
             return;
         }
-        u64* const state_words = written_words.Pointer(IsShort());
+        u64* const untracked_words = Array<Type::Untracked>();
+        u64* const state_words = Array<type>();
         const u64 offset_end = std::min(offset + size, SizeBytes());
         const u64 begin_page_index = offset / BYTES_PER_PAGE;
         const u64 begin_word_index = begin_page_index / PAGES_PER_WORD;
@@ -268,13 +350,19 @@ private:
             u64 bits = ~u64{0};
             bits = (bits >> right_offset) << right_offset;
             bits = (bits << left_offset) >> left_offset;
-            if constexpr (notify_rasterizer) {
-                NotifyRasterizer<!enable>(word_index, state_words[word_index], bits);
+            if constexpr (type == Type::CPU || type == Type::CachedCPU) {
+                NotifyRasterizer<!enable>(word_index, untracked_words[word_index], bits);
             }
             if constexpr (enable) {
                 state_words[word_index] |= bits;
+                if constexpr (type == Type::CPU || type == Type::CachedCPU) {
+                    untracked_words[word_index] |= bits;
+                }
             } else {
                 state_words[word_index] &= ~bits;
+                if constexpr (type == Type::CPU || type == Type::CachedCPU) {
+                    untracked_words[word_index] &= ~bits;
+                }
             }
             page_index = 0;
             ++word_index;
@@ -291,7 +379,7 @@ private:
      * @tparam add_to_rasterizer True when the rasterizer should start tracking the new pages
      */
     template <bool add_to_rasterizer>
-    void NotifyRasterizer(u64 word_index, u64 current_bits, u64 new_bits) {
+    void NotifyRasterizer(u64 word_index, u64 current_bits, u64 new_bits) const {
         u64 changed_bits = (add_to_rasterizer ? current_bits : ~current_bits) & new_bits;
         VAddr addr = cpu_addr + word_index * BYTES_PER_WORD;
         while (changed_bits != 0) {
@@ -315,21 +403,20 @@ private:
      * @param query_cpu_range Base CPU address to loop over
      * @param size            Size in bytes of the CPU range to loop over
      * @param func            Function to call for each turned off region
-     *
-     * @tparam gpu               True for host GPU pages, false for CPU pages
-     * @tparam notify_rasterizer True when the rasterizer should be notified about state changes
      */
-    template <bool gpu, bool notify_rasterizer, typename Func>
+    template <Type type, typename Func>
     void ForEachModifiedRange(VAddr query_cpu_range, s64 size, Func&& func) {
+        static_assert(type != Type::Untracked);
+
         const s64 difference = query_cpu_range - cpu_addr;
         const u64 query_begin = std::max<s64>(difference, 0);
         size += std::min<s64>(difference, 0);
         if (query_begin >= SizeBytes() || size < 0) {
             return;
         }
-        const u64* const cpu_words = words.cpu.Pointer(IsShort());
+        u64* const untracked_words = Array<Type::Untracked>();
+        u64* const state_words = Array<type>();
         const u64 query_end = query_begin + std::min(static_cast<u64>(size), SizeBytes());
-        u64* const state_words = (gpu ? words.gpu : words.cpu).Pointer(IsShort());
         u64* const words_begin = state_words + query_begin / BYTES_PER_WORD;
         u64* const words_end = state_words + Common::DivCeil(query_end, BYTES_PER_WORD);
 
@@ -345,7 +432,8 @@ private:
         const u64 word_index_end = std::distance(state_words, last_modified_word);
 
         const unsigned local_page_begin = std::countr_zero(*first_modified_word);
-        const unsigned local_page_end = PAGES_PER_WORD - std::countl_zero(last_modified_word[-1]);
+        const unsigned local_page_end =
+            static_cast<unsigned>(PAGES_PER_WORD) - std::countl_zero(last_modified_word[-1]);
         const u64 word_page_begin = word_index_begin * PAGES_PER_WORD;
         const u64 word_page_end = (word_index_end - 1) * PAGES_PER_WORD;
         const u64 query_page_begin = query_begin / BYTES_PER_PAGE;
@@ -371,11 +459,13 @@ private:
             const u64 current_word = state_words[word_index] & bits;
             state_words[word_index] &= ~bits;
 
-            // Exclude CPU modified pages when visiting GPU pages
-            const u64 word = current_word & ~(gpu ? cpu_words[word_index] : 0);
-            if constexpr (notify_rasterizer) {
-                NotifyRasterizer<true>(word_index, word, ~u64{0});
+            if constexpr (type == Type::CPU) {
+                const u64 current_bits = untracked_words[word_index] & bits;
+                untracked_words[word_index] &= ~bits;
+                NotifyRasterizer<true>(word_index, current_bits, ~u64{0});
             }
+            // Exclude CPU modified pages when visiting GPU pages
+            const u64 word = current_word & ~(type == Type::GPU ? untracked_words[word_index] : 0);
             u64 page = page_begin;
             page_begin = 0;
 
@@ -416,17 +506,20 @@ private:
      * @param offset Offset in bytes from the start of the buffer
      * @param size   Size in bytes of the region to query for modifications
      */
-    template <bool gpu>
+    template <Type type>
     [[nodiscard]] bool IsRegionModified(u64 offset, u64 size) const noexcept {
-        const u64* const cpu_words = words.cpu.Pointer(IsShort());
-        const u64* const state_words = (gpu ? words.gpu : words.cpu).Pointer(IsShort());
+        static_assert(type != Type::Untracked);
+
+        const u64* const untracked_words = Array<Type::Untracked>();
+        const u64* const state_words = Array<type>();
         const u64 num_query_words = size / BYTES_PER_WORD + 1;
         const u64 word_begin = offset / BYTES_PER_WORD;
         const u64 word_end = std::min(word_begin + num_query_words, NumWords());
         const u64 page_limit = Common::DivCeil(offset + size, BYTES_PER_PAGE);
         u64 page_index = (offset / BYTES_PER_PAGE) % PAGES_PER_WORD;
         for (u64 word_index = word_begin; word_index < word_end; ++word_index, page_index = 0) {
-            const u64 word = state_words[word_index] & ~(gpu ? cpu_words[word_index] : 0);
+            const u64 off_word = type == Type::GPU ? untracked_words[word_index] : 0;
+            const u64 word = state_words[word_index] & ~off_word;
             if (word == 0) {
                 continue;
             }
@@ -445,13 +538,13 @@ private:
      *
      * @param offset Offset in bytes from the start of the buffer
      * @param size   Size in bytes of the region to query for modifications
-     *
-     * @tparam gpu True to query GPU modified pages, false for CPU pages
      */
-    template <bool gpu>
+    template <Type type>
     [[nodiscard]] std::pair<u64, u64> ModifiedRegion(u64 offset, u64 size) const noexcept {
-        const u64* const cpu_words = words.cpu.Pointer(IsShort());
-        const u64* const state_words = (gpu ? words.gpu : words.cpu).Pointer(IsShort());
+        static_assert(type != Type::Untracked);
+
+        const u64* const untracked_words = Array<Type::Untracked>();
+        const u64* const state_words = Array<type>();
         const u64 num_query_words = size / BYTES_PER_WORD + 1;
         const u64 word_begin = offset / BYTES_PER_WORD;
         const u64 word_end = std::min(word_begin + num_query_words, NumWords());
@@ -460,7 +553,8 @@ private:
         u64 begin = std::numeric_limits<u64>::max();
         u64 end = 0;
         for (u64 word_index = word_begin; word_index < word_end; ++word_index) {
-            const u64 word = state_words[word_index] & ~(gpu ? cpu_words[word_index] : 0);
+            const u64 off_word = type == Type::GPU ? untracked_words[word_index] : 0;
+            const u64 word = state_words[word_index] & ~off_word;
             if (word == 0) {
                 continue;
             }
@@ -488,8 +582,9 @@ private:
 
     RasterizerInterface* rasterizer = nullptr;
     VAddr cpu_addr = 0;
-    GpuCpuWords words;
+    Words words;
     BufferFlagBits flags{};
+    int stream_score = 0;
 };
 
 } // namespace VideoCommon

src/video_core/buffer_cache/buffer_block.h

@@ -1,62 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/common_types.h"
-
-namespace VideoCommon {
-
-class BufferBlock {
-public:
-    [[nodiscard]] bool Overlaps(VAddr start, VAddr end) const {
-        return (cpu_addr < end) && (cpu_addr_end > start);
-    }
-
-    [[nodiscard]] bool IsInside(VAddr other_start, VAddr other_end) const {
-        return cpu_addr <= other_start && other_end <= cpu_addr_end;
-    }
-
-    [[nodiscard]] std::size_t Offset(VAddr in_addr) const {
-        return static_cast<std::size_t>(in_addr - cpu_addr);
-    }
-
-    [[nodiscard]] VAddr CpuAddr() const {
-        return cpu_addr;
-    }
-
-    [[nodiscard]] VAddr CpuAddrEnd() const {
-        return cpu_addr_end;
-    }
-
-    void SetCpuAddr(VAddr new_addr) {
-        cpu_addr = new_addr;
-        cpu_addr_end = new_addr + size;
-    }
-
-    [[nodiscard]] std::size_t Size() const {
-        return size;
-    }
-
-    [[nodiscard]] u64 Epoch() const {
-        return epoch;
-    }
-
-    void SetEpoch(u64 new_epoch) {
-        epoch = new_epoch;
-    }
-
-protected:
-    explicit BufferBlock(VAddr cpu_addr_, std::size_t size_) : size{size_} {
-        SetCpuAddr(cpu_addr_);
-    }
-
-private:
-    VAddr cpu_addr{};
-    VAddr cpu_addr_end{};
-    std::size_t size{};
-    u64 epoch{};
-};
-
-} // namespace VideoCommon

src/video_core/buffer_cache/buffer_cache.cpp

@@ -0,0 +1,13 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/microprofile.h"
+
+namespace VideoCommon {
+
+MICROPROFILE_DEFINE(GPU_PrepareBuffers, "GPU", "Prepare buffers", MP_RGB(224, 128, 128));
+MICROPROFILE_DEFINE(GPU_BindUploadBuffers, "GPU", "Bind and upload buffers", MP_RGB(224, 128, 128));
+MICROPROFILE_DEFINE(GPU_DownloadMemory, "GPU", "Download buffers", MP_RGB(224, 128, 128));
+
+} // namespace VideoCommon

src/video_core/buffer_cache/map_interval.cpp

@@ -1,33 +0,0 @@
-// Copyright 2020 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <array>
-#include <cstddef>
-#include <memory>
-
-#include "video_core/buffer_cache/map_interval.h"
-
-namespace VideoCommon {
-
-MapIntervalAllocator::MapIntervalAllocator() {
-    FillFreeList(first_chunk);
-}
-
-MapIntervalAllocator::~MapIntervalAllocator() = default;
-
-void MapIntervalAllocator::AllocateNewChunk() {
-    *new_chunk = std::make_unique<Chunk>();
-    FillFreeList(**new_chunk);
-    new_chunk = &(*new_chunk)->next;
-}
-
-void MapIntervalAllocator::FillFreeList(Chunk& chunk) {
-    const std::size_t old_size = free_list.size();
-    free_list.resize(old_size + chunk.data.size());
-    std::transform(chunk.data.rbegin(), chunk.data.rend(), free_list.begin() + old_size,
-                   [](MapInterval& interval) { return &interval; });
-}
-
-} // namespace VideoCommon

src/video_core/buffer_cache/map_interval.h

@@ -1,93 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <array>
-#include <cstddef>
-#include <memory>
-#include <vector>
-
-#include <boost/intrusive/set_hook.hpp>
-
-#include "common/common_types.h"
-#include "video_core/gpu.h"
-
-namespace VideoCommon {
-
-struct MapInterval : public boost::intrusive::set_base_hook<boost::intrusive::optimize_size<true>> {
-    MapInterval() = default;
-
-    /*implicit*/ MapInterval(VAddr start_) noexcept : start{start_} {}
-
-    explicit MapInterval(VAddr start_, VAddr end_, GPUVAddr gpu_addr_) noexcept
-        : start{start_}, end{end_}, gpu_addr{gpu_addr_} {}
-
-    bool IsInside(VAddr other_start, VAddr other_end) const noexcept {
-        return start <= other_start && other_end <= end;
-    }
-
-    bool Overlaps(VAddr other_start, VAddr other_end) const noexcept {
-        return start < other_end && other_start < end;
-    }
-
-    void MarkAsModified(bool is_modified_, u64 ticks_) noexcept {
-        is_modified = is_modified_;
-        ticks = ticks_;
-    }
-
-    boost::intrusive::set_member_hook<> member_hook_;
-    VAddr start = 0;
-    VAddr end = 0;
-    GPUVAddr gpu_addr = 0;
-    u64 ticks = 0;
-    bool is_written = false;
-    bool is_modified = false;
-    bool is_registered = false;
-    bool is_memory_marked = false;
-    bool is_sync_pending = false;
-};
-
-struct MapIntervalCompare {
-    constexpr bool operator()(const MapInterval& lhs, const MapInterval& rhs) const noexcept {
-        return lhs.start < rhs.start;
-    }
-};
-
-class MapIntervalAllocator {
-public:
-    MapIntervalAllocator();
-    ~MapIntervalAllocator();
-
-    MapInterval* Allocate() {
-        if (free_list.empty()) {
-            AllocateNewChunk();
-        }
-        MapInterval* const interval = free_list.back();
-        free_list.pop_back();
-        return interval;
-    }
-
-    void Release(MapInterval* interval) {
-        free_list.push_back(interval);
-    }
-
-private:
-    struct Chunk {
-        std::unique_ptr<Chunk> next;
-        std::array<MapInterval, 0x8000> data;
-    };
-
-    void AllocateNewChunk();
-
-    void FillFreeList(Chunk& chunk);
-
-    std::vector<MapInterval*> free_list;
-
-    Chunk first_chunk;
-
-    std::unique_ptr<Chunk>* new_chunk = &first_chunk.next;
-};
-
-} // namespace VideoCommon

src/video_core/cdma_pusher.cpp

@@ -37,59 +37,43 @@ CDmaPusher::CDmaPusher(GPU& gpu_)
 
 CDmaPusher::~CDmaPusher() = default;
 
-void CDmaPusher::Push(ChCommandHeaderList&& entries) {
-    cdma_queue.push(std::move(entries));
-}
-
-void CDmaPusher::DispatchCalls() {
-    while (!cdma_queue.empty()) {
-        Step();
-    }
-}
-
-void CDmaPusher::Step() {
-    const auto entries{cdma_queue.front()};
-    cdma_queue.pop();
-
-    std::vector<u32> values(entries.size());
-    std::memcpy(values.data(), entries.data(), entries.size() * sizeof(u32));
-
-    for (const u32 value : values) {
+void CDmaPusher::ProcessEntries(ChCommandHeaderList&& entries) {
+    for (const auto& value : entries) {
         if (mask != 0) {
             const auto lbs = static_cast<u32>(std::countr_zero(mask));
             mask &= ~(1U << lbs);
-            ExecuteCommand(static_cast<u32>(offset + lbs), value);
+            ExecuteCommand(offset + lbs, value.raw);
             continue;
         } else if (count != 0) {
             --count;
-            ExecuteCommand(static_cast<u32>(offset), value);
+            ExecuteCommand(offset, value.raw);
             if (incrementing) {
                 ++offset;
             }
             continue;
         }
-        const auto mode = static_cast<ChSubmissionMode>((value >> 28) & 0xf);
+        const auto mode = value.submission_mode.Value();
         switch (mode) {
         case ChSubmissionMode::SetClass: {
-            mask = value & 0x3f;
-            offset = (value >> 16) & 0xfff;
-            current_class = static_cast<ChClassId>((value >> 6) & 0x3ff);
+            mask = value.value & 0x3f;
+            offset = value.method_offset;
+            current_class = static_cast<ChClassId>((value.value >> 6) & 0x3ff);
             break;
         }
         case ChSubmissionMode::Incrementing:
         case ChSubmissionMode::NonIncrementing:
-            count = value & 0xffff;
-            offset = (value >> 16) & 0xfff;
+            count = value.value;
+            offset = value.method_offset;
             incrementing = mode == ChSubmissionMode::Incrementing;
             break;
         case ChSubmissionMode::Mask:
-            mask = value & 0xffff;
-            offset = (value >> 16) & 0xfff;
+            mask = value.value;
+            offset = value.method_offset;
             break;
         case ChSubmissionMode::Immediate: {
-            const u32 data = value & 0xfff;
-            offset = (value >> 16) & 0xfff;
-            ExecuteCommand(static_cast<u32>(offset), data);
+            const u32 data = value.value & 0xfff;
+            offset = value.method_offset;
+            ExecuteCommand(offset, data);
             break;
         }
         default:
@@ -102,8 +86,8 @@ void CDmaPusher::Step() {
 void CDmaPusher::ExecuteCommand(u32 state_offset, u32 data) {
     switch (current_class) {
     case ChClassId::NvDec:
-        ThiStateWrite(nvdec_thi_state, state_offset, {data});
-        switch (static_cast<ThiMethod>(state_offset)) {
+        ThiStateWrite(nvdec_thi_state, offset, data);
+        switch (static_cast<ThiMethod>(offset)) {
         case ThiMethod::IncSyncpt: {
             LOG_DEBUG(Service_NVDRV, "NVDEC Class IncSyncpt Method");
             const auto syncpoint_id = static_cast<u32>(data & 0xFF);
@@ -120,7 +104,7 @@ void CDmaPusher::ExecuteCommand(u32 state_offset, u32 data) {
             LOG_DEBUG(Service_NVDRV, "NVDEC method 0x{:X}",
                       static_cast<u32>(nvdec_thi_state.method_0));
             nvdec_processor->ProcessMethod(static_cast<Nvdec::Method>(nvdec_thi_state.method_0),
-                                           {data});
+                                           data);
             break;
         default:
             break;
@@ -144,7 +128,7 @@ void CDmaPusher::ExecuteCommand(u32 state_offset, u32 data) {
         case ThiMethod::SetMethod1:
             LOG_DEBUG(Service_NVDRV, "VIC method 0x{:X}, Args=({})",
                       static_cast<u32>(vic_thi_state.method_0), data);
-            vic_processor->ProcessMethod(static_cast<Vic::Method>(vic_thi_state.method_0), {data});
+            vic_processor->ProcessMethod(static_cast<Vic::Method>(vic_thi_state.method_0), data);
             break;
         default:
             break;
@@ -153,7 +137,7 @@ void CDmaPusher::ExecuteCommand(u32 state_offset, u32 data) {
     case ChClassId::Host1x:
         // This device is mainly for syncpoint synchronization
         LOG_DEBUG(Service_NVDRV, "Host1X Class Method");
-        host1x_processor->ProcessMethod(static_cast<Host1x::Method>(state_offset), {data});
+        host1x_processor->ProcessMethod(static_cast<Host1x::Method>(offset), data);
         break;
     default:
         UNIMPLEMENTED_MSG("Current class not implemented {:X}", static_cast<u32>(current_class));
@@ -161,10 +145,9 @@ void CDmaPusher::ExecuteCommand(u32 state_offset, u32 data) {
     }
 }
 
-void CDmaPusher::ThiStateWrite(ThiRegisters& state, u32 state_offset,
-                               const std::vector<u32>& arguments) {
-    u8* const state_offset_ptr = reinterpret_cast<u8*>(&state) + sizeof(u32) * state_offset;
-    std::memcpy(state_offset_ptr, arguments.data(), sizeof(u32) * arguments.size());
+void CDmaPusher::ThiStateWrite(ThiRegisters& state, u32 state_offset, u32 argument) {
+    u8* const offset_ptr = reinterpret_cast<u8*>(&state) + sizeof(u32) * state_offset;
+    std::memcpy(offset_ptr, &argument, sizeof(u32));
 }
 
 } // namespace Tegra

src/video_core/cdma_pusher.h

@@ -5,9 +5,7 @@
 #pragma once
 
 #include <memory>
-#include <unordered_map>
 #include <vector>
-#include <queue>
 
 #include "common/bit_field.h"
 #include "common/common_types.h"
@@ -16,9 +14,9 @@
 namespace Tegra {
 
 class GPU;
+class Host1x;
 class Nvdec;
 class Vic;
-class Host1x;
 
 enum class ChSubmissionMode : u32 {
     SetClass = 0,
@@ -48,16 +46,10 @@ enum class ChClassId : u32 {
     NvDec = 0xf0
 };
 
-enum class ChMethod : u32 {
-    Empty = 0,
-    SetMethod = 0x10,
-    SetData = 0x11,
-};
-
 union ChCommandHeader {
     u32 raw;
     BitField<0, 16, u32> value;
-    BitField<16, 12, ChMethod> method_offset;
+    BitField<16, 12, u32> method_offset;
     BitField<28, 4, ChSubmissionMode> submission_mode;
 };
 static_assert(sizeof(ChCommandHeader) == sizeof(u32), "ChCommand header is an invalid size");
@@ -99,21 +91,15 @@ public:
     explicit CDmaPusher(GPU& gpu_);
     ~CDmaPusher();
 
-    /// Push NVDEC command buffer entries into queue
-    void Push(ChCommandHeaderList&& entries);
-
-    /// Process queued command buffer entries
-    void DispatchCalls();
-
-    /// Process one queue element
-    void Step();
+    /// Process the command entry
+    void ProcessEntries(ChCommandHeaderList&& entries);
 
+private:
     /// Invoke command class devices to execute the command based on the current state
     void ExecuteCommand(u32 state_offset, u32 data);
 
-private:
     /// Write arguments value to the ThiRegisters member at the specified offset
-    void ThiStateWrite(ThiRegisters& state, u32 state_offset, const std::vector<u32>& arguments);
+    void ThiStateWrite(ThiRegisters& state, u32 offset, u32 argument);
 
     GPU& gpu;
     std::shared_ptr<Tegra::Nvdec> nvdec_processor;
@@ -124,13 +110,10 @@ private:
     ThiRegisters vic_thi_state{};
     ThiRegisters nvdec_thi_state{};
 
-    s32 count{};
-    s32 offset{};
+    u32 count{};
+    u32 offset{};
     u32 mask{};
     bool incrementing{};
-
-    // Queue of command lists to be processed
-    std::queue<ChCommandHeaderList> cdma_queue;
 };
 
 } // namespace Tegra

src/video_core/command_classes/codecs/codec.cpp

@@ -44,8 +44,10 @@ Codec::~Codec() {
 }
 
 void Codec::SetTargetCodec(NvdecCommon::VideoCodec codec) {
-    LOG_INFO(Service_NVDRV, "NVDEC video codec initialized to {}", codec);
-    current_codec = codec;
+    if (current_codec != codec) {
+        LOG_INFO(Service_NVDRV, "NVDEC video codec initialized to {}", static_cast<u32>(codec));
+        current_codec = codec;
+    }
 }
 
 void Codec::StateWrite(u32 offset, u64 arguments) {
@@ -55,7 +57,6 @@ void Codec::StateWrite(u32 offset, u64 arguments) {
 
 void Codec::Decode() {
     bool is_first_frame = false;
-
     if (!initialized) {
         if (current_codec == NvdecCommon::VideoCodec::H264) {
             av_codec = avcodec_find_decoder(AV_CODEC_ID_H264);

src/video_core/command_classes/nvdec.cpp

@@ -12,16 +12,16 @@ Nvdec::Nvdec(GPU& gpu_) : gpu(gpu_), codec(std::make_unique<Codec>(gpu)) {}
 
 Nvdec::~Nvdec() = default;
 
-void Nvdec::ProcessMethod(Method method, const std::vector<u32>& arguments) {
+void Nvdec::ProcessMethod(Method method, u32 argument) {
     if (method == Method::SetVideoCodec) {
-        codec->StateWrite(static_cast<u32>(method), arguments[0]);
+        codec->StateWrite(static_cast<u32>(method), argument);
     } else {
-        codec->StateWrite(static_cast<u32>(method), static_cast<u64>(arguments[0]) << 8);
+        codec->StateWrite(static_cast<u32>(method), static_cast<u64>(argument) << 8);
     }
 
     switch (method) {
     case Method::SetVideoCodec:
-        codec->SetTargetCodec(static_cast<NvdecCommon::VideoCodec>(arguments[0]));
+        codec->SetTargetCodec(static_cast<NvdecCommon::VideoCodec>(argument));
         break;
     case Method::Execute:
         Execute();

src/video_core/command_classes/nvdec.h

@@ -23,7 +23,7 @@ public:
     ~Nvdec();
 
     /// Writes the method into the state, Invoke Execute() if encountered
-    void ProcessMethod(Method method, const std::vector<u32>& arguments);
+    void ProcessMethod(Method method, u32 argument);
 
     /// Return most recently decoded frame
     [[nodiscard]] AVFramePtr GetFrame();

src/video_core/command_classes/vic.cpp

@@ -18,18 +18,14 @@ extern "C" {
 namespace Tegra {
 
 Vic::Vic(GPU& gpu_, std::shared_ptr<Nvdec> nvdec_processor_)
-    : gpu(gpu_), nvdec_processor(std::move(nvdec_processor_)) {}
+    : gpu(gpu_),
+      nvdec_processor(std::move(nvdec_processor_)), converted_frame_buffer{nullptr, av_free} {}
+
 Vic::~Vic() = default;
 
-void Vic::VicStateWrite(u32 offset, u32 arguments) {
-    u8* const state_offset = reinterpret_cast<u8*>(&vic_state) + offset * sizeof(u32);
-    std::memcpy(state_offset, &arguments, sizeof(u32));
-}
-
-void Vic::ProcessMethod(Method method, const std::vector<u32>& arguments) {
-    LOG_DEBUG(HW_GPU, "Vic method 0x{:X}", method);
-    VicStateWrite(static_cast<u32>(method), arguments[0]);
-    const u64 arg = static_cast<u64>(arguments[0]) << 8;
+void Vic::ProcessMethod(Method method, u32 argument) {
+    LOG_DEBUG(HW_GPU, "Vic method 0x{:X}", static_cast<u32>(method));
+    const u64 arg = static_cast<u64>(argument) << 8;
     switch (method) {
     case Method::Execute:
         Execute();
@@ -53,8 +49,7 @@ void Vic::ProcessMethod(Method method, const std::vector<u32>& arguments) {
 
 void Vic::Execute() {
     if (output_surface_luma_address == 0) {
-        LOG_ERROR(Service_NVDRV, "VIC Luma address not set. Received 0x{:X}",
-                  vic_state.output_surface.luma_offset);
+        LOG_ERROR(Service_NVDRV, "VIC Luma address not set.");
         return;
     }
     const VicConfig config{gpu.MemoryManager().Read<u64>(config_struct_address + 0x20)};
@@ -89,8 +84,10 @@ void Vic::Execute() {
         // Get Converted frame
         const std::size_t linear_size = frame->width * frame->height * 4;
 
-        using AVMallocPtr = std::unique_ptr<u8, decltype(&av_free)>;
-        AVMallocPtr converted_frame_buffer{static_cast<u8*>(av_malloc(linear_size)), av_free};
+        // Only allocate frame_buffer once per stream, as the size is not expected to change
+        if (!converted_frame_buffer) {
+            converted_frame_buffer = AVMallocPtr{static_cast<u8*>(av_malloc(linear_size)), av_free};
+        }
 
         const int converted_stride{frame->width * 4};
         u8* const converted_frame_buf_addr{converted_frame_buffer.get()};
@@ -104,18 +101,16 @@ void Vic::Execute() {
             const u32 block_height = static_cast<u32>(config.block_linear_height_log2);
             const auto size = Tegra::Texture::CalculateSize(true, 4, frame->width, frame->height, 1,
                                                             block_height, 0);
-            std::vector<u8> swizzled_data(size);
+            luma_buffer.resize(size);
             Tegra::Texture::SwizzleSubrect(frame->width, frame->height, frame->width * 4,
-                                           frame->width, 4, swizzled_data.data(),
+                                           frame->width, 4, luma_buffer.data(),
                                            converted_frame_buffer.get(), block_height, 0, 0);
 
-            gpu.MemoryManager().WriteBlock(output_surface_luma_address, swizzled_data.data(), size);
-            gpu.Maxwell3D().OnMemoryWrite();
+            gpu.MemoryManager().WriteBlock(output_surface_luma_address, luma_buffer.data(), size);
         } else {
             // send pitch linear frame
             gpu.MemoryManager().WriteBlock(output_surface_luma_address, converted_frame_buf_addr,
                                            linear_size);
-            gpu.Maxwell3D().OnMemoryWrite();
         }
         break;
     }
@@ -134,15 +129,15 @@ void Vic::Execute() {
         const auto stride = frame->linesize[0];
         const auto half_stride = frame->linesize[1];
 
-        std::vector<u8> luma_buffer(aligned_width * surface_height);
-        std::vector<u8> chroma_buffer(aligned_width * half_height);
+        luma_buffer.resize(aligned_width * surface_height);
+        chroma_buffer.resize(aligned_width * half_height);
 
         // Populate luma buffer
         for (std::size_t y = 0; y < surface_height - 1; ++y) {
-            std::size_t src = y * stride;
-            std::size_t dst = y * aligned_width;
+            const std::size_t src = y * stride;
+            const std::size_t dst = y * aligned_width;
 
-            std::size_t size = surface_width;
+            const std::size_t size = surface_width;
 
             for (std::size_t offset = 0; offset < size; ++offset) {
                 luma_buffer[dst + offset] = luma_ptr[src + offset];
@@ -153,8 +148,8 @@ void Vic::Execute() {
 
         // Populate chroma buffer from both channels with interleaving.
         for (std::size_t y = 0; y < half_height; ++y) {
-            std::size_t src = y * half_stride;
-            std::size_t dst = y * aligned_width;
+            const std::size_t src = y * half_stride;
+            const std::size_t dst = y * aligned_width;
 
             for (std::size_t x = 0; x < half_width; ++x) {
                 chroma_buffer[dst + x * 2] = chroma_b_ptr[src + x];
@@ -163,7 +158,6 @@ void Vic::Execute() {
         }
         gpu.MemoryManager().WriteBlock(output_surface_chroma_u_address, chroma_buffer.data(),
                                        chroma_buffer.size());
-        gpu.Maxwell3D().OnMemoryWrite();
         break;
     }
     default:

src/video_core/command_classes/vic.h

@@ -15,43 +15,6 @@ namespace Tegra {
 class GPU;
 class Nvdec;
 
-struct PlaneOffsets {
-    u32 luma_offset{};
-    u32 chroma_u_offset{};
-    u32 chroma_v_offset{};
-};
-
-struct VicRegisters {
-    INSERT_PADDING_WORDS(64);
-    u32 nop{};
-    INSERT_PADDING_WORDS(15);
-    u32 pm_trigger{};
-    INSERT_PADDING_WORDS(47);
-    u32 set_application_id{};
-    u32 set_watchdog_timer{};
-    INSERT_PADDING_WORDS(17);
-    u32 context_save_area{};
-    u32 context_switch{};
-    INSERT_PADDING_WORDS(43);
-    u32 execute{};
-    INSERT_PADDING_WORDS(63);
-    std::array<std::array<PlaneOffsets, 8>, 8> surfacex_slots{};
-    u32 picture_index{};
-    u32 control_params{};
-    u32 config_struct_offset{};
-    u32 filter_struct_offset{};
-    u32 palette_offset{};
-    u32 hist_offset{};
-    u32 context_id{};
-    u32 fce_ucode_size{};
-    PlaneOffsets output_surface{};
-    u32 fce_ucode_offset{};
-    INSERT_PADDING_WORDS(4);
-    std::array<u32, 8> slot_context_id{};
-    INSERT_PADDING_WORDS(16);
-};
-static_assert(sizeof(VicRegisters) == 0x7A0, "VicRegisters is an invalid size");
-
 class Vic {
 public:
     enum class Method : u32 {
@@ -67,14 +30,11 @@ public:
     ~Vic();
 
     /// Write to the device state.
-    void ProcessMethod(Method method, const std::vector<u32>& arguments);
+    void ProcessMethod(Method method, u32 argument);
 
 private:
     void Execute();
 
-    void VicStateWrite(u32 offset, u32 arguments);
-    VicRegisters vic_state{};
-
     enum class VideoPixelFormat : u64_le {
         RGBA8 = 0x1f,
         BGRA8 = 0x20,
@@ -88,8 +48,6 @@ private:
         BitField<9, 2, u64_le> chroma_loc_vert;
         BitField<11, 4, u64_le> block_linear_kind;
         BitField<15, 4, u64_le> block_linear_height_log2;
-        BitField<19, 3, u64_le> reserved0;
-        BitField<22, 10, u64_le> reserved1;
         BitField<32, 14, u64_le> surface_width_minus1;
         BitField<46, 14, u64_le> surface_height_minus1;
     };
@@ -97,6 +55,13 @@ private:
     GPU& gpu;
     std::shared_ptr<Tegra::Nvdec> nvdec_processor;
 
+    /// Avoid reallocation of the following buffers every frame, as their
+    /// size does not change during a stream
+    using AVMallocPtr = std::unique_ptr<u8, decltype(&av_free)>;
+    AVMallocPtr converted_frame_buffer;
+    std::vector<u8> luma_buffer;
+    std::vector<u8> chroma_buffer;
+
     GPUVAddr config_struct_address{};
     GPUVAddr output_surface_luma_address{};
     GPUVAddr output_surface_chroma_u_address{};

src/video_core/dirty_flags.cpp

@@ -12,13 +12,30 @@
 #define NUM(field_name) (sizeof(::Tegra::Engines::Maxwell3D::Regs::field_name) / (sizeof(u32)))
 
 namespace VideoCommon::Dirty {
-
+namespace {
 using Tegra::Engines::Maxwell3D;
 
-void SetupDirtyRenderTargets(Tegra::Engines::Maxwell3D::DirtyState::Tables& tables) {
+void SetupDirtyVertexBuffers(Maxwell3D::DirtyState::Tables& tables) {
+    static constexpr std::size_t num_array = 3;
+    for (std::size_t i = 0; i < Maxwell3D::Regs::NumVertexArrays; ++i) {
+        const std::size_t array_offset = OFF(vertex_array) + i * NUM(vertex_array[0]);
+        const std::size_t limit_offset = OFF(vertex_array_limit) + i * NUM(vertex_array_limit[0]);
+
+        FillBlock(tables, array_offset, num_array, VertexBuffer0 + i, VertexBuffers);
+        FillBlock(tables, limit_offset, NUM(vertex_array_limit), VertexBuffer0 + i, VertexBuffers);
+    }
+}
+
+void SetupIndexBuffer(Maxwell3D::DirtyState::Tables& tables) {
+    FillBlock(tables[0], OFF(index_array), NUM(index_array), IndexBuffer);
+}
+
+void SetupDirtyDescriptors(Maxwell3D::DirtyState::Tables& tables) {
     FillBlock(tables[0], OFF(tic), NUM(tic), Descriptors);
     FillBlock(tables[0], OFF(tsc), NUM(tsc), Descriptors);
+}
 
+void SetupDirtyRenderTargets(Maxwell3D::DirtyState::Tables& tables) {
     static constexpr std::size_t num_per_rt = NUM(rt[0]);
     static constexpr std::size_t begin = OFF(rt);
     static constexpr std::size_t num = num_per_rt * Maxwell3D::Regs::NumRenderTargets;
@@ -41,5 +58,13 @@ void SetupDirtyRenderTargets(Tegra::Engines::Maxwell3D::DirtyState::Tables& tabl
         FillBlock(table, OFF(zeta), NUM(zeta), flag);
     }
 }
+} // Anonymous namespace
+
+void SetupDirtyFlags(Maxwell3D::DirtyState::Tables& tables) {
+    SetupDirtyVertexBuffers(tables);
+    SetupIndexBuffer(tables);
+    SetupDirtyDescriptors(tables);
+    SetupDirtyRenderTargets(tables);
+}
 
 } // namespace VideoCommon::Dirty

src/video_core/dirty_flags.h

@@ -30,6 +30,12 @@ enum : u8 {
     ColorBuffer7,
     ZetaBuffer,
 
+    VertexBuffers,
+    VertexBuffer0,
+    VertexBuffer31 = VertexBuffer0 + 31,
+
+    IndexBuffer,
+
     LastCommonEntry,
 };
 
@@ -47,6 +53,6 @@ void FillBlock(Tegra::Engines::Maxwell3D::DirtyState::Tables& tables, std::size_
     FillBlock(tables[1], begin, num, index_b);
 }
 
-void SetupDirtyRenderTargets(Tegra::Engines::Maxwell3D::DirtyState::Tables& tables);
+void SetupDirtyFlags(Tegra::Engines::Maxwell3D::DirtyState::Tables& tables);
 
 } // namespace VideoCommon::Dirty

src/video_core/dma_pusher.cpp

@@ -23,8 +23,6 @@ void DmaPusher::DispatchCalls() {
     MICROPROFILE_SCOPE(DispatchCalls);
 
     gpu.SyncGuestHost();
-    // On entering GPU code, assume all memory may be touched by the ARM core.
-    gpu.Maxwell3D().OnMemoryWrite();
 
     dma_pushbuffer_subindex = 0;
 

src/video_core/engines/fermi_2d.cpp

@@ -18,8 +18,8 @@ Fermi2D::Fermi2D() {
 
 Fermi2D::~Fermi2D() = default;
 
-void Fermi2D::BindRasterizer(VideoCore::RasterizerInterface& rasterizer_) {
-    rasterizer = &rasterizer_;
+void Fermi2D::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
+    rasterizer = rasterizer_;
 }
 
 void Fermi2D::CallMethod(u32 method, u32 method_argument, bool is_last_call) {

src/video_core/engines/fermi_2d.h

@@ -38,7 +38,7 @@ public:
     ~Fermi2D();
 
     /// Binds a rasterizer to this engine.
-    void BindRasterizer(VideoCore::RasterizerInterface& rasterizer);
+    void BindRasterizer(VideoCore::RasterizerInterface* rasterizer);
 
     /// Write the value to the register identified by method.
     void CallMethod(u32 method, u32 method_argument, bool is_last_call) override;

src/video_core/engines/kepler_compute.cpp

@@ -21,8 +21,8 @@ KeplerCompute::KeplerCompute(Core::System& system_, MemoryManager& memory_manage
 
 KeplerCompute::~KeplerCompute() = default;
 
-void KeplerCompute::BindRasterizer(VideoCore::RasterizerInterface& rasterizer_) {
-    rasterizer = &rasterizer_;
+void KeplerCompute::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
+    rasterizer = rasterizer_;
 }
 
 void KeplerCompute::CallMethod(u32 method, u32 method_argument, bool is_last_call) {
@@ -39,7 +39,6 @@ void KeplerCompute::CallMethod(u32 method, u32 method_argument, bool is_last_cal
     case KEPLER_COMPUTE_REG_INDEX(data_upload): {
         upload_state.ProcessData(method_argument, is_last_call);
         if (is_last_call) {
-            system.GPU().Maxwell3D().OnMemoryWrite();
         }
         break;
     }

src/video_core/engines/kepler_compute.h

@@ -46,7 +46,7 @@ public:
     ~KeplerCompute();
 
     /// Binds a rasterizer to this engine.
-    void BindRasterizer(VideoCore::RasterizerInterface& rasterizer);
+    void BindRasterizer(VideoCore::RasterizerInterface* rasterizer);
 
     static constexpr std::size_t NumConstBuffers = 8;