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// 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; ///< The base pointer to the auto-mirrored arena.
static MemArena arena; ///< The MemArena class
u8* g_exefs_code; ///< ExeFS:/.code is loaded here
u8* g_system_mem; ///< System memory
u8* g_heap; ///< Application heap (main memory)
u8* g_heap_linear; ///< Linear heap
u8* g_vram; ///< Video memory (VRAM) pointer
u8* g_shared_mem; ///< Shared memory
u8* g_dsp_mem; ///< DSP memory
u8* g_kernel_mem; ///< Kernel memory
static u8* physical_bootrom; ///< Bootrom physical memory
static u8* uncached_bootrom;
static u8* physical_exefs_code; ///< Phsical ExeFS:/.code is loaded here
static u8* physical_system_mem; ///< System physical memory
static u8* physical_fcram; ///< Main physical memory (FCRAM)
static u8* physical_heap_gsp; ///< GSP heap physical memory
static u8* physical_vram; ///< Video physical memory (VRAM)
static u8* physical_shared_mem; ///< Physical shared memory
static u8* physical_dsp_mem; ///< Physical DSP 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_dsp_mem, &physical_dsp_mem, DSP_MEMORY_VADDR, DSP_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);
MemBlock_Init();
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();
MemBlock_Shutdown();
g_base = nullptr;
g_exefs_code = nullptr;
g_system_mem = nullptr;
g_heap = nullptr;
g_heap_linear = nullptr;
g_vram = nullptr;
g_shared_mem = nullptr;
g_dsp_mem = nullptr;
g_kernel_mem = nullptr;
physical_bootrom = nullptr;
uncached_bootrom = nullptr;
physical_exefs_code = nullptr;
physical_system_mem = nullptr;
physical_fcram = nullptr;
physical_heap_gsp = nullptr;
physical_vram = nullptr;
physical_shared_mem = nullptr;
physical_dsp_mem = nullptr;
physical_kernel_mem = nullptr;
LOG_DEBUG(HW_Memory, "shutdown OK");
}
} // namespace
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