refactored some mem_map stuff
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b2c5690413
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cd6e998e9a
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@ -33,29 +33,47 @@
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namespace Memory {
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u8* g_mem_base = NULL; ///< The base pointer to the auto-mirrored arena.
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u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena.
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MemArena g_mem_arena; ///< The MemArena class
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MemArena g_arena; ///< The MemArena class
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u8* g_bootrom = NULL; ///< Bootrom memory (super secret code/data @ 0x8000) pointer
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u8* g_fcram = NULL; ///< Main memory (FCRAM) pointer
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u8* g_vram = NULL; ///< Video memory (VRAM) pointer
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u8* g_physical_bootrom = NULL; ///< Bootrom physical memory (super secret code/data @ 0x8000)
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u8* g_uncached_bootrom = NULL;
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u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM)
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u8* g_physical_vram = NULL; ///< Video physical memory (VRAM)
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// We don't declare the IO region in here since its handled by other means.
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static MemoryView g_mem_views[] =
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static MemoryView g_views[] =
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{
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{NULL, NULL, 0x00000000, MEM_BOOTROM_SIZE, 0},
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{NULL, NULL, 0x00010000, MEM_BOOTROM_SIZE, MV_MIRROR_PREVIOUS},
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{NULL, NULL, 0x17E00000, MEM_MPCORE_PRIV_SIZE, 0},
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{&g_vram, &g_physical_vram, 0x18000000, MEM_VRAM_SIZE, 0},
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{NULL, NULL, 0x1FF00000, MEM_DSP_SIZE, 0},
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{NULL, NULL, 0x1FF80000, MEM_AXI_WRAM_SIZE, 0},
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{&g_ram, &g_physical_fcram, 0x20000000, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM},
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{&g_bootrom, &g_physical_bootrom, 0x00000000, MEM_BOOTROM_SIZE, 0},
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{NULL, &g_uncached_bootrom, 0x00010000, MEM_BOOTROM_SIZE, MV_MIRROR_PREVIOUS},
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// //{NULL, NULL, 0x17E00000, MEM_MPCORE_PRIV_SIZE, 0},
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{&g_vram, &g_physical_vram, 0x18000000, MEM_VRAM_SIZE, 0},
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// //{NULL, NULL, 0x1FF00000, MEM_DSP_SIZE, 0},
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// //{NULL, NULL, 0x1FF80000, MEM_AXI_WRAM_SIZE, 0},
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{&g_fcram, &g_physical_fcram, 0x20000000, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM},
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};
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static const int kNumMemViews = sizeof(g_mem_views) / sizeof(MemoryView); ///< Number of mem views
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/*static MemoryView views[] =
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{
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{&m_pScratchPad, &m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0},
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{NULL, &m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS},
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{&m_pVRAM, &m_pPhysicalVRAM, 0x04000000, 0x00800000, 0},
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{NULL, &m_pUncachedVRAM, 0x44000000, 0x00800000, MV_MIRROR_PREVIOUS},
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{&m_pRAM, &m_pPhysicalRAM, 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs)
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{NULL, &m_pUncachedRAM, 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
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{NULL, &m_pKernelRAM, 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
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// TODO: There are a few swizzled mirrors of VRAM, not sure about the best way to
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// implement those.
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};*/
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static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views
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u8 Read8(const u32 addr) {
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return 0xDE;
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@ -81,11 +99,10 @@ void Write32(const u32 addr, const u32 data) {
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void Init() {
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int flags = 0;
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for (size_t i = 0; i < ARRAY_SIZE(g_mem_views); i++) {
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if (g_mem_views[i].flags & MV_IS_PRIMARY_RAM)
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g_mem_views[i].size = MEMORY_SIZE;
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for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) {
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if (g_views[i].flags & MV_IS_PRIMARY_RAM)
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g_views[i].size = MEMORY_SIZE;
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}
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g_base = MemoryMap_Setup(g_mem_views, kNumMemViews, flags, &g_mem_arena);
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INFO_LOG(MEMMAP, "Memory system initialized. RAM at %p (mirror at 0 @ %p)", g_fcram,
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g_physical_fcram);
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@ -93,9 +110,9 @@ void Init() {
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void Shutdown() {
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u32 flags = 0;
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MemoryMap_Shutdown(g_mem_views, kNumMemViews, flags, &g_mem_arena);
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g_mem_arena.ReleaseSpace();
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g_mem_base = NULL;
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MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena);
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g_arena.ReleaseSpace();
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g_base = NULL;
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INFO_LOG(MEMMAP, "Memory system shut down.");
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}
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@ -58,7 +58,7 @@ extern u8 *g_base;
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// These are guaranteed to point to "low memory" addresses (sub-32-bit).
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// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
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// 32-bit: Same as the corresponding physical/virtual pointers.
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extern u8* g_ram; ///< Main memory
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extern u8* g_fcram; ///< Main memory
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extern u8* g_vram; ///< Video memory (VRAM)
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void Init();
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