Merge remote-tracking branch 'upstream/master' into lr-audio_support

.github/workflows/Hydra_Build.yml

@@ -180,3 +180,36 @@ jobs:
       with:
         name: Android Hydra core
         path: '${{github.workspace}}/build/libAlber.so'
+
+  ARM-Libretro:
+    runs-on: ubuntu-24.04-arm
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Fetch submodules
+      run: git submodule update --init --recursive
+
+    - name: Install misc packages
+      run: |
+       sudo apt-get update && sudo apt install libx11-dev libxext-dev libgl1 libglx-mesa0 mesa-common-dev libfuse2 libwayland-dev
+      
+    - name: Install newer Clang
+      run: |
+       wget https://apt.llvm.org/llvm.sh
+       chmod +x ./llvm.sh
+       sudo ./llvm.sh 17
+
+    - name: Configure CMake
+      run: |
+        cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_C_COMPILER=clang-17 -DCMAKE_CXX_COMPILER=clang++-17 -DENABLE_USER_BUILD=ON -DBUILD_LIBRETRO_CORE=ON -DENABLE_VULKAN=OFF -DCRYPTOPP_OPT_DISABLE_ASM=ON
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+
+    - name: Upload Libretro core
+      uses: actions/upload-artifact@v4
+      with:
+        name: Linux arm64 Libretro core
+        path: |
+          ${{github.workspace}}/build/panda3ds_libretro.so
+          ${{github.workspace}}/docs/libretro/panda3ds_libretro.info

include/kernel/kernel.hpp

@@ -253,4 +253,5 @@ public:
 	void sendGPUInterrupt(GPUInterrupt type) { serviceManager.sendGPUInterrupt(type); }
 	void clearInstructionCache();
 	void clearInstructionCacheRange(u32 start, u32 size);
+	u32 getSharedFontVaddr();
 };

include/kernel/resource_limits.hpp

@@ -19,7 +19,7 @@ struct ResourceLimitValues {
 // APPLICATION resource limit
 static constexpr ResourceLimitValues appResourceLimits = {
 	.maxPriority = 0x18,
-	.maxCommit = 0x4000000,
+	.maxCommit = 64_MB + 16_MB,  // We're currently giving 80MB to all apps. TODO: Implement extended memory properly
 	.maxThreads = 0x20,
 	.maxEvents = 0x20,
 	.maxMutexes = 0x20,
@@ -33,7 +33,7 @@ static constexpr ResourceLimitValues appResourceLimits = {
 // SYS_APPLET resource limit
 static constexpr ResourceLimitValues sysAppletResourceLimits = {
 	.maxPriority = 0x4,
-	.maxCommit = 0x5E00000,
+	.maxCommit = 0x5E00000 - 16_MB,
 	.maxThreads = 0x1D,
 	.maxEvents = 0xB,
 	.maxMutexes = 0x8,

include/memory.hpp

@@ -132,7 +132,7 @@ public:
 	static constexpr u32 totalPageCount = 1 << (32 - pageShift);
 	
 	static constexpr u32 FCRAM_SIZE = u32(128_MB);
-	static constexpr u32 FCRAM_APPLICATION_SIZE = u32(64_MB);
+	static constexpr u32 FCRAM_APPLICATION_SIZE = u32(80_MB);
 	static constexpr u32 FCRAM_PAGE_COUNT = FCRAM_SIZE / pageSize;
 	static constexpr u32 FCRAM_APPLICATION_PAGE_COUNT = FCRAM_APPLICATION_SIZE / pageSize;
 

src/core/kernel/memory_management.cpp

@@ -122,7 +122,10 @@ void Kernel::mapMemoryBlock() {
 	}
 
 	if (KernelHandles::isSharedMemHandle(block)) {
-		if (block == KernelHandles::FontSharedMemHandle && addr == 0) addr = 0x18000000;
+		if (block == KernelHandles::FontSharedMemHandle && addr == 0) {
+			addr = getSharedFontVaddr();
+		}
+
 		u8* ptr = mem.mapSharedMemory(block, addr, myPerms, otherPerms); // Map shared memory block
 
 		// Pass pointer to shared memory to the appropriate service
@@ -216,3 +219,8 @@ void Kernel::unmapMemoryBlock() {
 	Helpers::warn("Stubbed svcUnmapMemoryBlock!");
 	regs[0] = Result::Success;
 }
+
+u32 Kernel::getSharedFontVaddr() {
+	// Place shared font at the very beginning of system FCRAM
+	return mem.getLinearHeapVaddr() + Memory::FCRAM_APPLICATION_SIZE;
+}

src/core/services/apt.cpp

@@ -391,7 +391,7 @@ void APTService::setScreencapPostPermission(u32 messagePointer) {
 void APTService::getSharedFont(u32 messagePointer) {
 	log("APT::GetSharedFont\n");
 
-	constexpr u32 fontVaddr = 0x18000000;
+	const u32 fontVaddr = kernel.getSharedFontVaddr();
 	mem.write32(messagePointer, IPC::responseHeader(0x44, 2, 2));
 	mem.write32(messagePointer + 4, Result::Success);
 	mem.write32(messagePointer + 8, fontVaddr);