c221308a66
In 93da8e0abf, the page table construct
was moved to the common library (which utilized these inclusions). Since
the move, nothing requires these headers to be included within the
memory header.
100 lines
3 KiB
C++
100 lines
3 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <cstddef>
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#include <string>
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#include "common/common_types.h"
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namespace Common {
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struct PageTable;
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}
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namespace Kernel {
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class Process;
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}
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namespace Memory {
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/**
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* Page size used by the ARM architecture. This is the smallest granularity with which memory can
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* be mapped.
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*/
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constexpr std::size_t PAGE_BITS = 12;
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constexpr u64 PAGE_SIZE = 1ULL << PAGE_BITS;
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constexpr u64 PAGE_MASK = PAGE_SIZE - 1;
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/// Virtual user-space memory regions
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enum : VAddr {
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/// Read-only page containing kernel and system configuration values.
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CONFIG_MEMORY_VADDR = 0x1FF80000,
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CONFIG_MEMORY_SIZE = 0x00001000,
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CONFIG_MEMORY_VADDR_END = CONFIG_MEMORY_VADDR + CONFIG_MEMORY_SIZE,
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/// Usually read-only page containing mostly values read from hardware.
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SHARED_PAGE_VADDR = 0x1FF81000,
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SHARED_PAGE_SIZE = 0x00001000,
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SHARED_PAGE_VADDR_END = SHARED_PAGE_VADDR + SHARED_PAGE_SIZE,
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/// TLS (Thread-Local Storage) related.
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TLS_ENTRY_SIZE = 0x200,
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/// Application stack
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DEFAULT_STACK_SIZE = 0x100000,
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/// Kernel Virtual Address Range
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KERNEL_REGION_VADDR = 0xFFFFFF8000000000,
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KERNEL_REGION_SIZE = 0x7FFFE00000,
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KERNEL_REGION_END = KERNEL_REGION_VADDR + KERNEL_REGION_SIZE,
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};
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/// Currently active page table
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void SetCurrentPageTable(Common::PageTable* page_table);
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Common::PageTable* GetCurrentPageTable();
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/// Determines if the given VAddr is valid for the specified process.
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bool IsValidVirtualAddress(const Kernel::Process& process, VAddr vaddr);
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bool IsValidVirtualAddress(VAddr vaddr);
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/// Determines if the given VAddr is a kernel address
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bool IsKernelVirtualAddress(VAddr vaddr);
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u8 Read8(VAddr addr);
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u16 Read16(VAddr addr);
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u32 Read32(VAddr addr);
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u64 Read64(VAddr addr);
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void Write8(VAddr addr, u8 data);
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void Write16(VAddr addr, u16 data);
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void Write32(VAddr addr, u32 data);
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void Write64(VAddr addr, u64 data);
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void ReadBlock(const Kernel::Process& process, VAddr src_addr, void* dest_buffer, std::size_t size);
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void ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size);
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void WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer,
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std::size_t size);
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void WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size);
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void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
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void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
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u8* GetPointer(VAddr vaddr);
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std::string ReadCString(VAddr vaddr, std::size_t max_length);
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enum class FlushMode {
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/// Write back modified surfaces to RAM
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Flush,
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/// Remove region from the cache
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Invalidate,
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/// Write back modified surfaces to RAM, and also remove them from the cache
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FlushAndInvalidate,
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};
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/**
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* Mark each page touching the region as cached.
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*/
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void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached);
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} // namespace Memory
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