1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include "common/common.h"
#include "common/common_types.h"
namespace Memory {
////////////////////////////////////////////////////////////////////////////////////////////////////
enum {
BOOTROM_SIZE = 0x00010000, ///< Bootrom (super secret code/data @ 0x8000) size
MPCORE_PRIV_SIZE = 0x00002000, ///< MPCore private memory region size
VRAM_SIZE = 0x00600000, ///< VRAM size
DSP_SIZE = 0x00080000, ///< DSP memory size
AXI_WRAM_SIZE = 0x00080000, ///< AXI WRAM size
FCRAM_SIZE = 0x08000000, ///< FCRAM size
FCRAM_PADDR = 0x20000000, ///< FCRAM physical address
FCRAM_PADDR_END = (FCRAM_PADDR + FCRAM_SIZE), ///< FCRAM end of physical space
FCRAM_VADDR = 0x08000000, ///< FCRAM virtual address
FCRAM_VADDR_END = (FCRAM_VADDR + FCRAM_SIZE), ///< FCRAM end of virtual space
FCRAM_VADDR_FW0B = 0xF0000000, ///< FCRAM adress for firmare FW0B
FCRAM_VADDR_FW0B_END = (FCRAM_VADDR_FW0B + FCRAM_SIZE), ///< FCRAM adress end for FW0B
FCRAM_MASK = (FCRAM_SIZE - 1), ///< FCRAM mask
SHARED_MEMORY_SIZE = 0x04000000, ///< Shared memory size
SHARED_MEMORY_VADDR = 0x10000000, ///< Shared memory
SHARED_MEMORY_VADDR_END = (SHARED_MEMORY_VADDR + SHARED_MEMORY_SIZE),
SHARED_MEMORY_MASK = (SHARED_MEMORY_SIZE - 1),
CONFIG_MEMORY_SIZE = 0x00001000, ///< Configuration memory size
CONFIG_MEMORY_VADDR = 0x1FF80000, ///< Configuration memory virtual address
CONFIG_MEMORY_VADDR_END = (CONFIG_MEMORY_VADDR + CONFIG_MEMORY_SIZE),
CONFIG_MEMORY_MASK = (CONFIG_MEMORY_SIZE - 1),
KERNEL_MEMORY_SIZE = 0x00001000, ///< Kernel memory size
KERNEL_MEMORY_VADDR = 0xFFFF0000, ///< Kernel memory where the kthread objects etc are
KERNEL_MEMORY_VADDR_END = (KERNEL_MEMORY_VADDR + KERNEL_MEMORY_SIZE),
KERNEL_MEMORY_MASK = (KERNEL_MEMORY_SIZE - 1),
EXEFS_CODE_SIZE = 0x03F00000,
EXEFS_CODE_VADDR = 0x00100000, ///< ExeFS:/.code is loaded here
EXEFS_CODE_VADDR_END = (EXEFS_CODE_VADDR + EXEFS_CODE_SIZE),
EXEFS_CODE_MASK = 0x03FFFFFF,
// Region of FCRAM used by system
SYSTEM_MEMORY_SIZE = 0x02C00000, ///< 44MB
SYSTEM_MEMORY_VADDR = 0x04000000,
SYSTEM_MEMORY_VADDR_END = (SYSTEM_MEMORY_VADDR + SYSTEM_MEMORY_SIZE),
SYSTEM_MEMORY_MASK = 0x03FFFFFF,
HEAP_SIZE = FCRAM_SIZE, ///< Application heap size
//HEAP_PADDR = HEAP_GSP_SIZE,
//HEAP_PADDR_END = (HEAP_PADDR + HEAP_SIZE),
HEAP_VADDR = 0x08000000,
HEAP_VADDR_END = (HEAP_VADDR + HEAP_SIZE),
HEAP_MASK = (HEAP_SIZE - 1),
HEAP_GSP_SIZE = 0x02000000, ///< GSP heap size... TODO: Define correctly?
HEAP_GSP_VADDR = 0x14000000,
HEAP_GSP_VADDR_END = (HEAP_GSP_VADDR + HEAP_GSP_SIZE),
HEAP_GSP_PADDR = 0x00000000,
HEAP_GSP_PADDR_END = (HEAP_GSP_PADDR + HEAP_GSP_SIZE),
HEAP_GSP_MASK = (HEAP_GSP_SIZE - 1),
HARDWARE_IO_SIZE = 0x01000000,
HARDWARE_IO_PADDR = 0x10000000, ///< IO physical address start
HARDWARE_IO_VADDR = 0x1EC00000, ///< IO virtual address start
HARDWARE_IO_PADDR_END = (HARDWARE_IO_PADDR + HARDWARE_IO_SIZE),
HARDWARE_IO_VADDR_END = (HARDWARE_IO_VADDR + HARDWARE_IO_SIZE),
VRAM_PADDR = 0x18000000,
VRAM_VADDR = 0x1F000000,
VRAM_PADDR_END = (VRAM_PADDR + VRAM_SIZE),
VRAM_VADDR_END = (VRAM_VADDR + VRAM_SIZE),
VRAM_MASK = 0x007FFFFF,
SCRATCHPAD_SIZE = 0x00004000, ///< Typical stack size - TODO: Read from exheader
SCRATCHPAD_VADDR_END = 0x10000000,
SCRATCHPAD_VADDR = (SCRATCHPAD_VADDR_END - SCRATCHPAD_SIZE), ///< Stack space
SCRATCHPAD_MASK = (SCRATCHPAD_SIZE - 1), ///< Scratchpad memory mask
};
////////////////////////////////////////////////////////////////////////////////////////////////////
/// Represents a block of memory mapped by ControlMemory/MapMemoryBlock
struct MemoryBlock {
MemoryBlock() : handle(0), base_address(0), address(0), size(0), operation(0), permissions(0) {
}
u32 handle;
u32 base_address;
u32 address;
u32 size;
u32 operation;
u32 permissions;
const u32 GetVirtualAddress() const{
return base_address + address;
}
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Base is a pointer to the base of the memory map. Yes, some MMU tricks
// are used to set up a full GC or Wii memory map in process memory. on
// 32-bit, you have to mask your offsets with 0x3FFFFFFF. This means that
// some things are mirrored too many times, but eh... it works.
// In 64-bit, this might point to "high memory" (above the 32-bit limit),
// so be sure to load it into a 64-bit register.
extern u8 *g_base;
// These are guaranteed to point to "low memory" addresses (sub-32-bit).
// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
// 32-bit: Same as the corresponding physical/virtual pointers.
extern u8* g_heap_gsp; ///< GSP heap (main memory)
extern u8* g_heap; ///< Application heap (main memory)
extern u8* g_vram; ///< Video memory (VRAM)
extern u8* g_shared_mem; ///< Shared memory
extern u8* g_kernel_mem; ///< Kernel memory
extern u8* g_system_mem; ///< System memory
extern u8* g_exefs_code; ///< ExeFS:/.code is loaded here
void Init();
void Shutdown();
u8 Read8(const u32 addr);
u16 Read16(const u32 addr);
u32 Read32(const u32 addr);
u32 Read8_ZX(const u32 addr);
u32 Read16_ZX(const u32 addr);
void Write8(const u32 addr, const u8 data);
void Write16(const u32 addr, const u16 data);
void Write32(const u32 addr, const u32 data);
u8* GetPointer(const u32 Address);
/**
* Maps a block of memory in shared memory
* @param handle Handle to map memory block for
* @param addr Address to map memory block to
* @param permissions Memory map permissions
*/
u32 MapBlock_Shared(u32 handle, u32 addr,u32 permissions) ;
/**
* Maps a block of memory on the heap
* @param size Size of block in bytes
* @param operation Memory map operation type
* @param flags Memory allocation flags
*/
u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions);
/**
* Maps a block of memory on the GSP heap
* @param size Size of block in bytes
* @param operation Memory map operation type
* @param permissions Control memory permissions
*/
u32 MapBlock_HeapGSP(u32 size, u32 operation, u32 permissions);
inline const char* GetCharPointer(const u32 address) {
return (const char *)GetPointer(address);
}
inline const u32 VirtualAddressFromPhysical_FCRAM(const u32 address) {
return ((address & FCRAM_MASK) | FCRAM_VADDR);
}
inline const u32 VirtualAddressFromPhysical_IO(const u32 address) {
return (address + 0x0EB00000);
}
inline const u32 VirtualAddressFromPhysical_VRAM(const u32 address) {
return (address + 0x07000000);
}
} // namespace
|
