mirror of
https://github.com/yuzu-emu/yuzu-android
synced 2024-12-30 15:21:21 -08:00
89 lines
3.9 KiB
C++
89 lines
3.9 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "common/common.h"
|
|
#include "common/mem_arena.h"
|
|
|
|
#include "core/mem_map.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace Memory {
|
|
|
|
u8* g_base = nullptr; ///< The base pointer to the auto-mirrored arena.
|
|
|
|
static MemArena arena; ///< The MemArena class
|
|
|
|
u8* g_exefs_code = nullptr; ///< ExeFS:/.code is loaded here
|
|
u8* g_system_mem = nullptr; ///< System memory
|
|
u8* g_heap = nullptr; ///< Application heap (main memory)
|
|
u8* g_heap_linear = nullptr; ///< Linear heap
|
|
u8* g_vram = nullptr; ///< Video memory (VRAM) pointer
|
|
u8* g_shared_mem = nullptr; ///< Shared memory
|
|
u8* g_kernel_mem; ///< Kernel memory
|
|
|
|
static u8* physical_bootrom = nullptr; ///< Bootrom physical memory
|
|
static u8* uncached_bootrom = nullptr;
|
|
|
|
static u8* physical_exefs_code = nullptr; ///< Phsical ExeFS:/.code is loaded here
|
|
static u8* physical_system_mem = nullptr; ///< System physical memory
|
|
static u8* physical_fcram = nullptr; ///< Main physical memory (FCRAM)
|
|
static u8* physical_heap_gsp = nullptr; ///< GSP heap physical memory
|
|
static u8* physical_vram = nullptr; ///< Video physical memory (VRAM)
|
|
static u8* physical_shared_mem = nullptr; ///< Physical shared memory
|
|
static u8* physical_kernel_mem; ///< Kernel memory
|
|
|
|
// We don't declare the IO region in here since its handled by other means.
|
|
static MemoryView g_views[] = {
|
|
{&g_exefs_code, &physical_exefs_code, EXEFS_CODE_VADDR, EXEFS_CODE_SIZE, 0},
|
|
{&g_vram, &physical_vram, VRAM_VADDR, VRAM_SIZE, 0},
|
|
{&g_heap, &physical_fcram, HEAP_VADDR, HEAP_SIZE, MV_IS_PRIMARY_RAM},
|
|
{&g_shared_mem, &physical_shared_mem, SHARED_MEMORY_VADDR, SHARED_MEMORY_SIZE, 0},
|
|
{&g_system_mem, &physical_system_mem, SYSTEM_MEMORY_VADDR, SYSTEM_MEMORY_SIZE, 0},
|
|
{&g_kernel_mem, &physical_kernel_mem, KERNEL_MEMORY_VADDR, KERNEL_MEMORY_SIZE, 0},
|
|
{&g_heap_linear, &physical_heap_gsp, HEAP_LINEAR_VADDR, HEAP_LINEAR_SIZE, 0},
|
|
};
|
|
|
|
/*static MemoryView views[] =
|
|
{
|
|
{&m_pScratchPad, &m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0},
|
|
{NULL, &m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS},
|
|
{&m_pVRAM, &m_pPhysicalVRAM, 0x04000000, 0x00800000, 0},
|
|
{NULL, &m_pUncachedVRAM, 0x44000000, 0x00800000, MV_MIRROR_PREVIOUS},
|
|
{&m_pRAM, &m_pPhysicalRAM, 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs)
|
|
{NULL, &m_pUncachedRAM, 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
|
|
{NULL, &m_pKernelRAM, 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
|
|
|
|
// TODO: There are a few swizzled mirrors of VRAM, not sure about the best way to
|
|
// implement those.
|
|
};*/
|
|
|
|
static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views
|
|
|
|
void Init() {
|
|
int flags = 0;
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) {
|
|
if (g_views[i].flags & MV_IS_PRIMARY_RAM)
|
|
g_views[i].size = FCRAM_SIZE;
|
|
}
|
|
|
|
g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &arena);
|
|
|
|
LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_heap,
|
|
physical_fcram);
|
|
}
|
|
|
|
void Shutdown() {
|
|
u32 flags = 0;
|
|
MemoryMap_Shutdown(g_views, kNumMemViews, flags, &arena);
|
|
|
|
arena.ReleaseSpace();
|
|
g_base = nullptr;
|
|
|
|
LOG_DEBUG(HW_Memory, "shutdown OK");
|
|
}
|
|
|
|
} // namespace
|