mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-11-24 12:26:26 -05:00
7ada357b2d
memory.cpp/h contains definitions related to acessing memory and configuring the address space mem_map.cpp/h contains higher-level definitions related to configuring the address space accoording to the kernel and allocating memory.
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "common/common_types.h"
|
|
|
|
namespace Memory {
|
|
|
|
const u32 PAGE_SIZE = 0x1000;
|
|
|
|
/// Physical memory regions as seen from the ARM11
|
|
enum : PAddr {
|
|
/// IO register area
|
|
IO_AREA_PADDR = 0x10100000,
|
|
IO_AREA_SIZE = 0x01000000, ///< IO area size (16MB)
|
|
IO_AREA_PADDR_END = IO_AREA_PADDR + IO_AREA_SIZE,
|
|
|
|
/// MPCore internal memory region
|
|
MPCORE_RAM_PADDR = 0x17E00000,
|
|
MPCORE_RAM_SIZE = 0x00002000, ///< MPCore internal memory size (8KB)
|
|
MPCORE_RAM_PADDR_END = MPCORE_RAM_PADDR + MPCORE_RAM_SIZE,
|
|
|
|
/// Video memory
|
|
VRAM_PADDR = 0x18000000,
|
|
VRAM_SIZE = 0x00600000, ///< VRAM size (6MB)
|
|
VRAM_PADDR_END = VRAM_PADDR + VRAM_SIZE,
|
|
|
|
/// DSP memory
|
|
DSP_RAM_PADDR = 0x1FF00000,
|
|
DSP_RAM_SIZE = 0x00080000, ///< DSP memory size (512KB)
|
|
DSP_RAM_PADDR_END = DSP_RAM_PADDR + DSP_RAM_SIZE,
|
|
|
|
/// AXI WRAM
|
|
AXI_WRAM_PADDR = 0x1FF80000,
|
|
AXI_WRAM_SIZE = 0x00080000, ///< AXI WRAM size (512KB)
|
|
AXI_WRAM_PADDR_END = AXI_WRAM_PADDR + AXI_WRAM_SIZE,
|
|
|
|
/// Main FCRAM
|
|
FCRAM_PADDR = 0x20000000,
|
|
FCRAM_SIZE = 0x08000000, ///< FCRAM size (128MB)
|
|
FCRAM_PADDR_END = FCRAM_PADDR + FCRAM_SIZE,
|
|
};
|
|
|
|
/// Virtual user-space memory regions
|
|
enum : VAddr {
|
|
/// Where the application text, data and bss reside.
|
|
PROCESS_IMAGE_VADDR = 0x00100000,
|
|
PROCESS_IMAGE_MAX_SIZE = 0x03F00000,
|
|
PROCESS_IMAGE_VADDR_END = PROCESS_IMAGE_VADDR + PROCESS_IMAGE_MAX_SIZE,
|
|
|
|
/// Area where IPC buffers are mapped onto.
|
|
IPC_MAPPING_VADDR = 0x04000000,
|
|
IPC_MAPPING_SIZE = 0x04000000,
|
|
IPC_MAPPING_VADDR_END = IPC_MAPPING_VADDR + IPC_MAPPING_SIZE,
|
|
|
|
/// Application heap (includes stack).
|
|
HEAP_VADDR = 0x08000000,
|
|
HEAP_SIZE = 0x08000000,
|
|
HEAP_VADDR_END = HEAP_VADDR + HEAP_SIZE,
|
|
|
|
/// Area where shared memory buffers are mapped onto.
|
|
SHARED_MEMORY_VADDR = 0x10000000,
|
|
SHARED_MEMORY_SIZE = 0x04000000,
|
|
SHARED_MEMORY_VADDR_END = SHARED_MEMORY_VADDR + SHARED_MEMORY_SIZE,
|
|
|
|
/// Maps 1:1 to an offset in FCRAM. Used for HW allocations that need to be linear in physical memory.
|
|
LINEAR_HEAP_VADDR = 0x14000000,
|
|
LINEAR_HEAP_SIZE = 0x08000000,
|
|
LINEAR_HEAP_VADDR_END = LINEAR_HEAP_VADDR + LINEAR_HEAP_SIZE,
|
|
|
|
/// Maps 1:1 to the IO register area.
|
|
IO_AREA_VADDR = 0x1EC00000,
|
|
IO_AREA_VADDR_END = IO_AREA_VADDR + IO_AREA_SIZE,
|
|
|
|
/// Maps 1:1 to VRAM.
|
|
VRAM_VADDR = 0x1F000000,
|
|
VRAM_VADDR_END = VRAM_VADDR + VRAM_SIZE,
|
|
|
|
/// Maps 1:1 to DSP memory.
|
|
DSP_RAM_VADDR = 0x1FF00000,
|
|
DSP_RAM_VADDR_END = DSP_RAM_VADDR + DSP_RAM_SIZE,
|
|
|
|
/// Read-only page containing kernel and system configuration values.
|
|
CONFIG_MEMORY_VADDR = 0x1FF80000,
|
|
CONFIG_MEMORY_SIZE = 0x00001000,
|
|
CONFIG_MEMORY_VADDR_END = CONFIG_MEMORY_VADDR + CONFIG_MEMORY_SIZE,
|
|
|
|
/// Usually read-only page containing mostly values read from hardware.
|
|
SHARED_PAGE_VADDR = 0x1FF81000,
|
|
SHARED_PAGE_SIZE = 0x00001000,
|
|
SHARED_PAGE_VADDR_END = SHARED_PAGE_VADDR + SHARED_PAGE_SIZE,
|
|
|
|
// TODO(yuriks): The size of this area is dynamic, the kernel grows
|
|
// it as more and more threads are created. For now we'll just use a
|
|
// hardcoded value.
|
|
/// Area where TLS (Thread-Local Storage) buffers are allocated.
|
|
TLS_AREA_VADDR = 0x1FF82000,
|
|
TLS_AREA_SIZE = 0x00030000, // Each TLS buffer is 0x200 bytes, allows for 300 threads
|
|
TLS_AREA_VADDR_END = TLS_AREA_VADDR + TLS_AREA_SIZE,
|
|
};
|
|
|
|
u8 Read8(VAddr addr);
|
|
u16 Read16(VAddr addr);
|
|
u32 Read32(VAddr addr);
|
|
u64 Read64(VAddr addr);
|
|
|
|
void Write8(VAddr addr, u8 data);
|
|
void Write16(VAddr addr, u16 data);
|
|
void Write32(VAddr addr, u32 data);
|
|
void Write64(VAddr addr, u64 data);
|
|
|
|
void WriteBlock(VAddr addr, const u8* data, size_t size);
|
|
|
|
u8* GetPointer(VAddr virtual_address);
|
|
|
|
/**
|
|
* Gets a pointer to the memory region beginning at the specified physical address.
|
|
*
|
|
* @note This is currently implemented using PhysicalToVirtualAddress().
|
|
*/
|
|
u8* GetPhysicalPointer(PAddr address);
|
|
|
|
}
|