mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-12-04 03:32:29 +00:00
517 lines
15 KiB
C++
517 lines
15 KiB
C++
// Copyright (C) 2003 Dolphin Project / 2012 PPSSPP Project
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include "ppsspp_config.h"
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#if PPSSPP_PLATFORM(UWP)
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#include "Common/CommonWindows.h"
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#endif
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#include <algorithm>
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#include <mutex>
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#include "Common/Common.h"
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#include "Common/MemoryUtil.h"
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#include "Common/MemArena.h"
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#include "Common/Serialize/Serializer.h"
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#include "Common/Serialize/SerializeFuncs.h"
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#include "Core/Core.h"
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#include "Core/Config.h"
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#include "Core/ConfigValues.h"
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#include "Core/Debugger/SymbolMap.h"
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#include "Core/Debugger/MemBlockInfo.h"
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#include "Core/HDRemaster.h"
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#include "Core/HLE/HLE.h"
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#include "Core/HLE/ReplaceTables.h"
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#include "Core/MemMap.h"
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#include "Core/MemFault.h"
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#include "Core/MIPS/MIPS.h"
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#include "Core/MIPS/JitCommon/JitBlockCache.h"
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#include "Core/MIPS/JitCommon/JitCommon.h"
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#include "Common/Thread/ParallelLoop.h"
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namespace Memory {
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// The base pointer to the auto-mirrored arena.
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u8* base = nullptr;
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// The MemArena class
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MemArena g_arena;
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// ==============
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u8 *m_pPhysicalScratchPad;
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u8 *m_pUncachedScratchPad;
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// 64-bit: Pointers to high-mem mirrors
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// 32-bit: Same as above
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u8 *m_pPhysicalRAM[3];
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u8 *m_pUncachedRAM[3];
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u8 *m_pKernelRAM[3]; // RAM mirrored up to "kernel space". Fully accessible at all times currently.
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// Technically starts at 0xA0000000, which we don't properly support (but we don't really support kernel code.)
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// This matches how we handle 32-bit masking.
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u8 *m_pUncachedKernelRAM[3];
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// VRAM is mirrored 4 times. The second and fourth mirrors are swizzled.
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// In practice, a game accessing the mirrors most likely is deswizzling the depth buffer.
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u8 *m_pPhysicalVRAM[4];
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u8 *m_pUncachedVRAM[4];
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// Holds the ending address of the PSP's user space.
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// Required for HD Remasters to work properly.
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// This replaces RAM_NORMAL_SIZE at runtime.
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u32 g_MemorySize;
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// Used to store the PSP model on game startup.
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u32 g_PSPModel;
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std::recursive_mutex g_shutdownLock;
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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 views[] =
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{
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{&m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0},
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{&m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS},
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{&m_pPhysicalVRAM[0], 0x04000000, 0x00200000, 0},
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{&m_pPhysicalVRAM[1], 0x04200000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pPhysicalVRAM[2], 0x04400000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pPhysicalVRAM[3], 0x04600000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pUncachedVRAM[0], 0x44000000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pUncachedVRAM[1], 0x44200000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pUncachedVRAM[2], 0x44400000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pUncachedVRAM[3], 0x44600000, 0x00200000, MV_MIRROR_PREVIOUS},
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{&m_pPhysicalRAM[0], 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs)
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{&m_pUncachedRAM[0], 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM},
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{&m_pKernelRAM[0], 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM | MV_KERNEL},
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{&m_pUncachedKernelRAM[0],0xC0000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM | MV_KERNEL},
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// Starts at memory + 31 MB.
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{&m_pPhysicalRAM[1], 0x09F00000, g_MemorySize, MV_IS_EXTRA1_RAM},
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{&m_pUncachedRAM[1], 0x49F00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA1_RAM},
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{&m_pKernelRAM[1], 0x89F00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA1_RAM | MV_KERNEL},
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{&m_pUncachedKernelRAM[1],0xC9F00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA1_RAM | MV_KERNEL},
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// Starts at memory + 31 * 2 MB.
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{&m_pPhysicalRAM[2], 0x0BE00000, g_MemorySize, MV_IS_EXTRA2_RAM},
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{&m_pUncachedRAM[2], 0x4BE00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA2_RAM},
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{&m_pKernelRAM[2], 0x8BE00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA2_RAM | MV_KERNEL},
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{&m_pUncachedKernelRAM[2],0xCBE00000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_EXTRA2_RAM | MV_KERNEL},
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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 num_views = sizeof(views) / sizeof(MemoryView);
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inline static bool CanIgnoreView(const MemoryView &view) {
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#ifdef MASKED_PSP_MEMORY
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// Basically, 32-bit platforms can ignore views that are masked out anyway.
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return (view.flags & MV_MIRROR_PREVIOUS) && (view.virtual_address & ~MEMVIEW32_MASK) != 0;
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#else
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return false;
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#endif
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}
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#if PPSSPP_PLATFORM(IOS) && PPSSPP_ARCH(64BIT)
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#define SKIP(a_flags, b_flags) \
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if ((b_flags) & MV_KERNEL) \
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continue;
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#else
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#define SKIP(a_flags, b_flags) \
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;
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#endif
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static bool Memory_TryBase(u32 flags) {
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// OK, we know where to find free space. Now grab it!
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// We just mimic the popular BAT setup.
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size_t position = 0;
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size_t last_position = 0;
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// Zero all the pointers to be sure.
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for (int i = 0; i < num_views; i++) {
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if (views[i].out_ptr)
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*views[i].out_ptr = 0;
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}
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int i;
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for (i = 0; i < num_views; i++) {
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const MemoryView &view = views[i];
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if (view.size == 0)
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continue;
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SKIP(flags, view.flags);
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if (view.flags & MV_MIRROR_PREVIOUS) {
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position = last_position;
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}
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#ifndef MASKED_PSP_MEMORY
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*view.out_ptr = (u8*)g_arena.CreateView(
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position, view.size, base + view.virtual_address);
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if (!*view.out_ptr) {
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goto bail;
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DEBUG_LOG(MEMMAP, "Failed at view %d", i);
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}
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#else
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if (CanIgnoreView(view)) {
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// This is handled by address masking in 32-bit, no view needs to be created.
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*view.out_ptr = *views[i - 1].out_ptr;
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} else {
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*view.out_ptr = (u8*)g_arena.CreateView(
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position, view.size, base + (view.virtual_address & MEMVIEW32_MASK));
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if (!*view.out_ptr) {
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DEBUG_LOG(MEMMAP, "Failed at view %d", i);
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goto bail;
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}
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}
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#endif
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last_position = position;
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position += g_arena.roundup(view.size);
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}
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return true;
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bail:
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// Argh! ERROR! Free what we grabbed so far so we can try again.
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for (int j = 0; j <= i; j++) {
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if (views[i].size == 0)
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continue;
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SKIP(flags, views[i].flags);
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if (*views[j].out_ptr) {
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if (!CanIgnoreView(views[j])) {
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g_arena.ReleaseView(0, *views[j].out_ptr, views[j].size);
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}
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*views[j].out_ptr = NULL;
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}
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}
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return false;
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}
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bool MemoryMap_Setup(u32 flags) {
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#if PPSSPP_PLATFORM(UWP)
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// We reserve the memory, then simply commit in TryBase.
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base = (u8*)VirtualAllocFromApp(0, 0x10000000, MEM_RESERVE, PAGE_READWRITE);
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#else
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// Figure out how much memory we need to allocate in total.
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size_t total_mem = 0;
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for (int i = 0; i < num_views; i++) {
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if (views[i].size == 0)
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continue;
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SKIP(flags, views[i].flags);
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if (!CanIgnoreView(views[i]))
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total_mem += g_arena.roundup(views[i].size);
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}
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// Grab some pagefile backed memory out of the void ...
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if (!g_arena.GrabMemSpace(total_mem)) {
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// It'll already have logged.
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return false;
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}
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#endif
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#if !PPSSPP_PLATFORM(ANDROID)
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if (g_arena.NeedsProbing()) {
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int base_attempts = 0;
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#if PPSSPP_PLATFORM(WINDOWS) && PPSSPP_ARCH(32BIT)
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// Try a whole range of possible bases. Return once we got a valid one.
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uintptr_t max_base_addr = 0x7FFF0000 - 0x10000000;
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uintptr_t min_base_addr = 0x01000000;
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uintptr_t stride = 0x400000;
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#elif PPSSPP_ARCH(ARM64) && PPSSPP_PLATFORM(IOS)
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// iOS
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uintptr_t max_base_addr = 0x1FFFF0000ULL - 0x80000000ULL;
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uintptr_t min_base_addr = 0x100000000ULL;
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uintptr_t stride = 0x800000;
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#else
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uintptr_t max_base_addr = 0;
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uintptr_t min_base_addr = 0;
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uintptr_t stride = 0;
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ERROR_LOG(MEMMAP, "MemoryMap_Setup: Hit a wrong path, should not be needed on this platform.");
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return false;
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#endif
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for (uintptr_t base_addr = min_base_addr; base_addr < max_base_addr; base_addr += stride) {
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base_attempts++;
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base = (u8 *)base_addr;
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if (Memory_TryBase(flags)) {
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INFO_LOG(MEMMAP, "Found valid memory base at %p after %i tries.", base, base_attempts);
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return true;
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}
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}
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ERROR_LOG(MEMMAP, "MemoryMap_Setup: Failed finding a memory base.");
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return false;
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}
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else
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#endif
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{
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#if !PPSSPP_PLATFORM(UWP)
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base = g_arena.Find4GBBase();
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if (!base) {
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return false;
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}
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#endif
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}
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// Should return true...
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return Memory_TryBase(flags);
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}
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void MemoryMap_Shutdown(u32 flags) {
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size_t position = 0;
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size_t last_position = 0;
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for (int i = 0; i < num_views; i++) {
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if (views[i].size == 0)
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continue;
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SKIP(flags, views[i].flags);
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if (views[i].flags & MV_MIRROR_PREVIOUS) {
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position = last_position;
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}
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if (*views[i].out_ptr)
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g_arena.ReleaseView(position, *views[i].out_ptr, views[i].size);
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*views[i].out_ptr = nullptr;
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last_position = position;
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position += g_arena.roundup(views[i].size);
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}
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g_arena.ReleaseSpace();
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#if PPSSPP_PLATFORM(UWP)
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VirtualFree(base, 0, MEM_RELEASE);
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#endif
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}
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bool Init() {
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// On some 32 bit platforms (like Android, iOS, etc.), you can only map < 32 megs at a time.
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const static int MAX_MMAP_SIZE = 31 * 1024 * 1024;
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_dbg_assert_msg_(g_MemorySize <= MAX_MMAP_SIZE * 3, "ACK - too much memory for three mmap views.");
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for (size_t i = 0; i < ARRAY_SIZE(views); i++) {
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if (views[i].flags & MV_IS_PRIMARY_RAM)
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views[i].size = std::min((int)g_MemorySize, MAX_MMAP_SIZE);
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if (views[i].flags & MV_IS_EXTRA1_RAM)
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views[i].size = std::min(std::max((int)g_MemorySize - MAX_MMAP_SIZE, 0), MAX_MMAP_SIZE);
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if (views[i].flags & MV_IS_EXTRA2_RAM)
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views[i].size = std::min(std::max((int)g_MemorySize - MAX_MMAP_SIZE * 2, 0), MAX_MMAP_SIZE);
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}
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int flags = 0;
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if (!MemoryMap_Setup(flags)) {
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return false;
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}
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INFO_LOG(MEMMAP, "Memory system initialized. Base at %p (RAM at @ %p, uncached @ %p)",
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base, m_pPhysicalRAM, m_pUncachedRAM);
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MemFault_Init();
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return true;
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}
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void Reinit() {
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_assert_msg_(PSP_IsInited(), "Cannot reinit during startup/shutdown");
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Core_NotifyLifecycle(CoreLifecycle::MEMORY_REINITING);
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Shutdown();
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Init();
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Core_NotifyLifecycle(CoreLifecycle::MEMORY_REINITED);
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}
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static void DoMemoryVoid(PointerWrap &p, uint32_t start, uint32_t size) {
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uint8_t *d = GetPointerWrite(start);
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uint8_t *&storage = *p.ptr;
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// We only handle aligned data and sizes.
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if ((size & 0x3F) != 0 || ((uintptr_t)d & 0x3F) != 0)
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return p.DoVoid(d, size);
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switch (p.mode) {
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case PointerWrap::MODE_READ:
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ParallelMemcpy(&g_threadManager, d, storage, size);
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break;
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case PointerWrap::MODE_WRITE:
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ParallelMemcpy(&g_threadManager, storage, d, size);
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break;
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case PointerWrap::MODE_MEASURE:
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// Nothing to do here.
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break;
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case PointerWrap::MODE_VERIFY:
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ParallelRangeLoop(&g_threadManager, [&](int l, int h) {
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for (int i = l; i < h; i++)
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_dbg_assert_msg_(d[i] == storage[i], "Savestate verification failure: %d (0x%X) (at %p) != %d (0x%X) (at %p).\n", d[i], d[i], &d[i], storage[i], storage[i], &storage[i]);
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}, 0, size, 128);
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break;
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case PointerWrap::MODE_NOOP:
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break;
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}
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storage += size;
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}
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void DoState(PointerWrap &p) {
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auto s = p.Section("Memory", 1, 3);
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if (!s)
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return;
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if (s < 2) {
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if (!g_RemasterMode)
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g_MemorySize = RAM_NORMAL_SIZE;
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g_PSPModel = PSP_MODEL_FAT;
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} else if (s == 2) {
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// In version 2, we determine memory size based on PSP model.
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u32 oldMemorySize = g_MemorySize;
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Do(p, g_PSPModel);
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p.DoMarker("PSPModel");
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if (!g_RemasterMode) {
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g_MemorySize = g_PSPModel == PSP_MODEL_FAT ? RAM_NORMAL_SIZE : RAM_DOUBLE_SIZE;
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if (oldMemorySize < g_MemorySize) {
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Reinit();
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}
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}
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} else {
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// In version 3, we started just saving the memory size directly.
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// It's no longer based strictly on the PSP model.
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u32 oldMemorySize = g_MemorySize;
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Do(p, g_PSPModel);
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p.DoMarker("PSPModel");
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Do(p, g_MemorySize);
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if (oldMemorySize != g_MemorySize) {
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Reinit();
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}
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}
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DoMemoryVoid(p, PSP_GetKernelMemoryBase(), g_MemorySize);
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p.DoMarker("RAM");
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DoMemoryVoid(p, PSP_GetVidMemBase(), VRAM_SIZE);
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p.DoMarker("VRAM");
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DoArray(p, m_pPhysicalScratchPad, SCRATCHPAD_SIZE);
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p.DoMarker("ScratchPad");
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}
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void Shutdown() {
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std::lock_guard<std::recursive_mutex> guard(g_shutdownLock);
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u32 flags = 0;
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MemoryMap_Shutdown(flags);
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base = nullptr;
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DEBUG_LOG(MEMMAP, "Memory system shut down.");
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}
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bool IsActive() {
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return base != nullptr;
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}
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// Wanting to avoid include pollution, MemMap.h is included a lot.
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MemoryInitedLock::MemoryInitedLock()
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{
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g_shutdownLock.lock();
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}
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MemoryInitedLock::~MemoryInitedLock()
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{
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g_shutdownLock.unlock();
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}
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MemoryInitedLock Lock()
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{
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return MemoryInitedLock();
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}
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__forceinline static Opcode Read_Instruction(u32 address, bool resolveReplacements, Opcode inst)
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{
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if (!MIPS_IS_EMUHACK(inst.encoding)) {
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return inst;
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}
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// No mutex on jit access here, but we assume the caller has locked, if necessary.
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if (MIPS_IS_RUNBLOCK(inst.encoding) && MIPSComp::jit) {
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inst = MIPSComp::jit->GetOriginalOp(inst);
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if (resolveReplacements && MIPS_IS_REPLACEMENT(inst)) {
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u32 op;
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if (GetReplacedOpAt(address, &op)) {
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if (MIPS_IS_EMUHACK(op)) {
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ERROR_LOG(MEMMAP, "WTF 1");
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return Opcode(op);
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} else {
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return Opcode(op);
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}
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} else {
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ERROR_LOG(MEMMAP, "Replacement, but no replacement op? %08x", inst.encoding);
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}
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}
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return inst;
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} else if (resolveReplacements && MIPS_IS_REPLACEMENT(inst.encoding)) {
|
|
u32 op;
|
|
if (GetReplacedOpAt(address, &op)) {
|
|
if (MIPS_IS_EMUHACK(op)) {
|
|
ERROR_LOG(MEMMAP, "WTF 2");
|
|
return Opcode(op);
|
|
} else {
|
|
return Opcode(op);
|
|
}
|
|
} else {
|
|
return inst;
|
|
}
|
|
} else {
|
|
return inst;
|
|
}
|
|
}
|
|
|
|
Opcode Read_Instruction(u32 address, bool resolveReplacements)
|
|
{
|
|
Opcode inst = Opcode(Read_U32(address));
|
|
return Read_Instruction(address, resolveReplacements, inst);
|
|
}
|
|
|
|
Opcode ReadUnchecked_Instruction(u32 address, bool resolveReplacements)
|
|
{
|
|
Opcode inst = Opcode(ReadUnchecked_U32(address));
|
|
return Read_Instruction(address, resolveReplacements, inst);
|
|
}
|
|
|
|
Opcode Read_Opcode_JIT(u32 address)
|
|
{
|
|
Opcode inst = Opcode(Read_U32(address));
|
|
// No mutex around jit access here, but we assume caller has if necessary.
|
|
if (MIPS_IS_RUNBLOCK(inst.encoding) && MIPSComp::jit) {
|
|
return MIPSComp::jit->GetOriginalOp(inst);
|
|
} else {
|
|
return inst;
|
|
}
|
|
}
|
|
|
|
// WARNING! No checks!
|
|
// We assume that _Address is cached
|
|
void Write_Opcode_JIT(const u32 _Address, const Opcode& _Value)
|
|
{
|
|
Memory::WriteUnchecked_U32(_Value.encoding, _Address);
|
|
}
|
|
|
|
void Memset(const u32 _Address, const u8 _iValue, const u32 _iLength, const char *tag) {
|
|
if (IsValidRange(_Address, _iLength)) {
|
|
uint8_t *ptr = GetPointerWriteUnchecked(_Address);
|
|
memset(ptr, _iValue, _iLength);
|
|
} else {
|
|
for (size_t i = 0; i < _iLength; i++)
|
|
Write_U8(_iValue, (u32)(_Address + i));
|
|
}
|
|
|
|
NotifyMemInfo(MemBlockFlags::WRITE, _Address, _iLength, tag, strlen(tag));
|
|
}
|
|
|
|
} // namespace
|
|
|
|
void PSPPointerNotifyRW(int rw, uint32_t ptr, uint32_t bytes, const char * tag, size_t tagLen) {
|
|
if (MemBlockInfoDetailed(bytes)) {
|
|
if (rw & 1)
|
|
NotifyMemInfo(MemBlockFlags::WRITE, ptr, bytes, tag, tagLen);
|
|
if (rw & 2)
|
|
NotifyMemInfo(MemBlockFlags::READ, ptr, bytes, tag, tagLen);
|
|
}
|
|
}
|