// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "common/common.h"
#include "common/mem_arena.h"
#include "core/mem_map.h"
#include "core/core.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace Memory {
u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena.
MemArena g_arena; ///< The MemArena class
u8* g_bootrom = NULL; ///< Bootrom physical memory
u8* g_fcram = NULL; ///< Main memory (FCRAM) pointer
u8* g_vram = NULL; ///< Video memory (VRAM) pointer
u8* g_scratchpad = NULL; ///< Scratchpad memory - Used for main thread stack
u8* g_physical_bootrom = NULL; ///< Bootrom physical memory
u8* g_uncached_bootrom = NULL;
u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM)
u8* g_physical_vram = NULL; ///< Video physical memory (VRAM)
u8* g_physical_scratchpad = NULL; ///< Scratchpad memory used for main thread stack
// We don't declare the IO region in here since its handled by other means.
static MemoryView g_views[] = {
{ &g_vram, &g_physical_vram, MEM_VRAM_VADDR, MEM_VRAM_SIZE, 0 },
{ &g_fcram, &g_physical_fcram, MEM_FCRAM_VADDR, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM },
};
/*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 = MEM_FCRAM_SIZE;
}
g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &g_arena);
g_scratchpad = new u8[MEM_SCRATCHPAD_SIZE];
NOTICE_LOG(MEMMAP, "Memory system initialized. RAM at %p (mirror at 0 @ %p)", g_fcram,
g_physical_fcram);
}
void Shutdown() {
u32 flags = 0;
MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena);
g_arena.ReleaseSpace();
delete[] g_scratchpad;
g_base = NULL;
g_scratchpad = NULL;
NOTICE_LOG(MEMMAP, "Memory system shut down.");
}
} // namespace
