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Move Guest GPU into SoC Directory

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We decided to restructure Skyline to draw a layer of separation between guest and host GPU. We're reserving the `gpu` namespace and directory for purely host GPU and creating a new `soc` directory and namespace for emulation of parts of the X1 SoC which is currently limited to guest GPU but will be expanded to contain components like the audio DSP down the line.
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PixelyIon
2021-03-25 01:39:21 +05:30
committed by ◱ Mark
parent 0ea6d9bee5
commit 3f7373209a
33 changed files with 1319 additions and 1289 deletions
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145
app/src/main/cpp/skyline/gpu/memory_manager.h
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// SPDX-License-Identifier: MPL-2.0
// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
#pragma once
#include <common.h>
namespace skyline {
namespace constant {
constexpr u64 GpuPageSize{1 << 16}; //!< The page size of the GPU address space
}
namespace gpu::vmm {
enum class ChunkState {
Unmapped, //!< The chunk is unmapped
Reserved, //!< The chunk is reserved
Mapped //!< The chunk is mapped and a CPU side address is present
};
struct ChunkDescriptor {
u64 virtAddr; //!< The address of the chunk in the virtual address space
u64 size; //!< The size of the chunk in bytes
u8 *cpuPtr; //!< A pointer to the chunk in the application's address space (if mapped)
ChunkState state;
ChunkDescriptor(u64 virtAddr, u64 size, u8 *cpuPtr, ChunkState state) : virtAddr(virtAddr), size(size), cpuPtr(cpuPtr), state(state) {}
/**
* @return If the given chunk can be contained wholly within this chunk
*/
inline bool CanContain(const ChunkDescriptor &chunk) {
return (chunk.virtAddr >= virtAddr) && ((size + virtAddr) >= (chunk.size + chunk.virtAddr));
}
};
/**
* @brief The MemoryManager class handles mapping between a virtual address space and an application's address space
*/
class MemoryManager {
private:
const DeviceState &state;
std::vector<ChunkDescriptor> chunks;
std::shared_mutex vmmMutex;
/**
* @brief Finds a chunk in the virtual address space that is larger than meets the given requirements
* @note vmmMutex MUST be locked when calling this
* @param desiredState The state of the chunk to find
* @param size The minimum size of the chunk to find
* @param alignment The minimum alignment of the chunk to find
* @return The first applicable chunk
*/
std::optional<ChunkDescriptor> FindChunk(ChunkState desiredState, u64 size, u64 alignment = 0);
/**
* @brief Inserts a chunk into the chunk list, resizing and splitting as necessary
* @note vmmMutex MUST be locked when calling this
* @param newChunk The chunk to insert
* @return The base virtual address of the inserted chunk
*/
u64 InsertChunk(const ChunkDescriptor &newChunk);
public:
MemoryManager(const DeviceState &state);
/**
* @brief Reserves a region of the virtual address space so it will not be chosen automatically when mapping
* @param size The size of the region to reserve
* @param alignment The alignment of the region to reserve
* @return The base virtual address of the reserved region
*/
u64 ReserveSpace(u64 size, u64 alignment);
/**
* @brief Reserves a fixed region of the virtual address space so it will not be chosen automatically when mapping
* @param virtAddr The virtual base address of the region to allocate
* @param size The size of the region to allocate
* @return The base virtual address of the reserved region
*/
u64 ReserveFixed(u64 virtAddr, u64 size);
/**
* @brief Maps a CPU memory region into an automatically chosen region of the virtual address space
* @param cpuPtr A pointer to the region to be mapped into the virtual address space
* @param size The size of the region to map
* @return The base virtual address of the mapped region
*/
u64 MapAllocate(u8 *cpuPtr, u64 size);
/**
* @brief Maps a CPU memory region to a fixed region in the virtual address space
* @param virtAddr The target virtual address of the region
* @param cpuPtr A pointer to the region to be mapped into the virtual address space
* @param size The size of the region to map
* @return The base virtual address of the mapped region
*/
u64 MapFixed(u64 virtAddr, u8 *cpuPtr, u64 size);
/**
* @brief Unmaps all chunks in the given region from the virtual address space
* @return Whether the operation succeeded
*/
bool Unmap(u64 virtAddr, u64 size);
void Read(u8 *destination, u64 virtAddr, u64 size);
/**
* @brief Reads in a span from a region of the virtual address space
*/
template<typename T>
void Read(span <T> destination, u64 virtAddr) {
Read(reinterpret_cast<u8 *>(destination.data()), virtAddr, destination.size_bytes());
}
/**
* @brief Reads in an object from a region of the virtual address space
* @tparam T The type of object to return
*/
template<typename T>
T Read(u64 virtAddr) {
T obj;
Read(reinterpret_cast<u8 *>(&obj), virtAddr, sizeof(T));
return obj;
}
void Write(u8 *source, u64 virtAddr, u64 size);
/**
* @brief Writes out a span to a region of the virtual address space
*/
template<typename T>
void Write(span <T> source, u64 virtAddr) {
Write(reinterpret_cast<u8 *>(source.data()), virtAddr, source.size_bytes());
}
/**
* @brief Reads in an object from a region of the virtual address space
*/
template<typename T>
void Write(T source, u64 virtAddr) {
Write(reinterpret_cast<u8 *>(&source), virtAddr, sizeof(T));
}
};
}
}