grabbed ppsspp's MemArena
This commit is contained in:
parent
4fdeadb8e2
commit
07ea22de5c
|
@ -1,14 +1,27 @@
|
||||||
// Copyright 2013 Dolphin Emulator Project
|
// Copyright (C) 2003 Dolphin Project.
|
||||||
// Licensed under GPLv2
|
|
||||||
// Refer to the license.txt file included.
|
|
||||||
|
|
||||||
|
// This program is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, version 2.0 or later versions.
|
||||||
|
|
||||||
|
// This program is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License 2.0 for more details.
|
||||||
|
|
||||||
|
// A copy of the GPL 2.0 should have been included with the program.
|
||||||
|
// If not, see http://www.gnu.org/licenses/
|
||||||
|
|
||||||
|
// Official SVN repository and contact information can be found at
|
||||||
|
// http://code.google.com/p/dolphin-emu/
|
||||||
|
|
||||||
|
#include <string>
|
||||||
|
|
||||||
#include "common.h"
|
|
||||||
#include "memory_util.h"
|
#include "memory_util.h"
|
||||||
#include "mem_arena.h"
|
#include "mem_arena.h"
|
||||||
|
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
#include <windows.h>
|
//#include "CommonWindows.h"
|
||||||
#else
|
#else
|
||||||
#include <sys/stat.h>
|
#include <sys/stat.h>
|
||||||
#include <fcntl.h>
|
#include <fcntl.h>
|
||||||
|
@ -20,54 +33,133 @@
|
||||||
#include <linux/ashmem.h>
|
#include <linux/ashmem.h>
|
||||||
#endif
|
#endif
|
||||||
#endif
|
#endif
|
||||||
#include <set>
|
|
||||||
|
|
||||||
#if defined(__APPLE__)
|
#ifdef IOS
|
||||||
static const char* ram_temp_file = "/tmp/gc_mem.tmp";
|
void* globalbase = NULL;
|
||||||
#elif !defined(_WIN32) // non OSX unixes
|
|
||||||
static const char* ram_temp_file = "/dev/shm/gc_mem.tmp";
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#ifdef ANDROID
|
#ifdef ANDROID
|
||||||
|
|
||||||
|
// Hopefully this ABI will never change...
|
||||||
|
|
||||||
|
|
||||||
#define ASHMEM_DEVICE "/dev/ashmem"
|
#define ASHMEM_DEVICE "/dev/ashmem"
|
||||||
|
|
||||||
int AshmemCreateFileMapping(const char *name, size_t size)
|
/*
|
||||||
|
* ashmem_create_region - creates a new ashmem region and returns the file
|
||||||
|
* descriptor, or <0 on error
|
||||||
|
*
|
||||||
|
* `name' is an optional label to give the region (visible in /proc/pid/maps)
|
||||||
|
* `size' is the size of the region, in page-aligned bytes
|
||||||
|
*/
|
||||||
|
int ashmem_create_region(const char *name, size_t size)
|
||||||
{
|
{
|
||||||
int fd, ret;
|
int fd, ret;
|
||||||
|
|
||||||
fd = open(ASHMEM_DEVICE, O_RDWR);
|
fd = open(ASHMEM_DEVICE, O_RDWR);
|
||||||
if (fd < 0)
|
if (fd < 0)
|
||||||
return fd;
|
return fd;
|
||||||
|
|
||||||
// We don't really care if we can't set the name, it is optional
|
if (name) {
|
||||||
ret = ioctl(fd, ASHMEM_SET_NAME, name);
|
char buf[ASHMEM_NAME_LEN];
|
||||||
|
|
||||||
|
strncpy(buf, name, sizeof(buf));
|
||||||
|
ret = ioctl(fd, ASHMEM_SET_NAME, buf);
|
||||||
|
if (ret < 0)
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
ret = ioctl(fd, ASHMEM_SET_SIZE, size);
|
ret = ioctl(fd, ASHMEM_SET_SIZE, size);
|
||||||
if (ret < 0)
|
if (ret < 0)
|
||||||
{
|
goto error;
|
||||||
close(fd);
|
|
||||||
NOTICE_LOG(MEMMAP, "Ashmem returned error: 0x%08x", ret);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
return fd;
|
return fd;
|
||||||
|
|
||||||
|
error:
|
||||||
|
ERROR_LOG(MEMMAP, "NASTY ASHMEM ERROR: ret = %08x", ret);
|
||||||
|
close(fd);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ashmem_set_prot_region(int fd, int prot)
|
||||||
|
{
|
||||||
|
return ioctl(fd, ASHMEM_SET_PROT_MASK, prot);
|
||||||
|
}
|
||||||
|
|
||||||
|
int ashmem_pin_region(int fd, size_t offset, size_t len)
|
||||||
|
{
|
||||||
|
struct ashmem_pin pin = { offset, len };
|
||||||
|
return ioctl(fd, ASHMEM_PIN, &pin);
|
||||||
|
}
|
||||||
|
|
||||||
|
int ashmem_unpin_region(int fd, size_t offset, size_t len)
|
||||||
|
{
|
||||||
|
struct ashmem_pin pin = { offset, len };
|
||||||
|
return ioctl(fd, ASHMEM_UNPIN, &pin);
|
||||||
|
}
|
||||||
|
#endif // Android
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef _WIN32
|
||||||
|
// do not make this "static"
|
||||||
|
#if defined(MAEMO) || defined(MEEGO_EDITION_HARMATTAN)
|
||||||
|
std::string ram_temp_file = "/home/user/gc_mem.tmp";
|
||||||
|
#else
|
||||||
|
std::string ram_temp_file = "/tmp/gc_mem.tmp";
|
||||||
|
#endif
|
||||||
|
#elif !defined(_XBOX)
|
||||||
|
SYSTEM_INFO sysInfo;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
// Windows mappings need to be on 64K boundaries, due to Alpha legacy.
|
||||||
|
#ifdef _WIN32
|
||||||
|
size_t roundup(size_t x) {
|
||||||
|
#ifndef _XBOX
|
||||||
|
int gran = sysInfo.dwAllocationGranularity ? sysInfo.dwAllocationGranularity : 0x10000;
|
||||||
|
#else
|
||||||
|
int gran = 0x10000; // 64k in 360
|
||||||
|
#endif
|
||||||
|
return (x + gran - 1) & ~(gran - 1);
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
size_t roundup(size_t x) {
|
||||||
|
return x;
|
||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
|
||||||
void MemArena::GrabLowMemSpace(size_t size)
|
void MemArena::GrabLowMemSpace(size_t size)
|
||||||
{
|
{
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
|
#ifndef _XBOX
|
||||||
hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, (DWORD)(size), NULL);
|
hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, (DWORD)(size), NULL);
|
||||||
|
GetSystemInfo(&sysInfo);
|
||||||
|
#endif
|
||||||
#elif defined(ANDROID)
|
#elif defined(ANDROID)
|
||||||
fd = AshmemCreateFileMapping("Dolphin-emu", size);
|
// Use ashmem so we don't have to allocate a file on disk!
|
||||||
|
fd = ashmem_create_region("PPSSPP_RAM", size);
|
||||||
|
// Note that it appears that ashmem is pinned by default, so no need to pin.
|
||||||
if (fd < 0)
|
if (fd < 0)
|
||||||
{
|
{
|
||||||
NOTICE_LOG(MEMMAP, "Ashmem allocation failed");
|
ERROR_LOG(MEMMAP, "Failed to grab ashmem space of size: %08x errno: %d", (int)size, (int)(errno));
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
#else
|
#else
|
||||||
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
|
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
|
||||||
fd = open(ram_temp_file, O_RDWR | O_CREAT, mode);
|
fd = open(ram_temp_file.c_str(), O_RDWR | O_CREAT, mode);
|
||||||
unlink(ram_temp_file);
|
if (fd < 0)
|
||||||
if (ftruncate(fd, size) < 0)
|
{
|
||||||
ERROR_LOG(MEMMAP, "Failed to allocate low memory space");
|
ERROR_LOG(MEMMAP, "Failed to grab memory space as a file: %s of size: %08x errno: %d", ram_temp_file.c_str(), (int)size, (int)(errno));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
// delete immediately, we keep the fd so it still lives
|
||||||
|
unlink(ram_temp_file.c_str());
|
||||||
|
if (ftruncate(fd, size) != 0)
|
||||||
|
{
|
||||||
|
ERROR_LOG(MEMMAP, "Failed to ftruncate %d to size %08x", (int)fd, (int)size);
|
||||||
|
}
|
||||||
return;
|
return;
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
|
@ -78,6 +170,9 @@ void MemArena::ReleaseSpace()
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
CloseHandle(hMemoryMapping);
|
CloseHandle(hMemoryMapping);
|
||||||
hMemoryMapping = 0;
|
hMemoryMapping = 0;
|
||||||
|
#elif defined(__SYMBIAN32__)
|
||||||
|
memmap->Close();
|
||||||
|
delete memmap;
|
||||||
#else
|
#else
|
||||||
close(fd);
|
close(fd);
|
||||||
#endif
|
#endif
|
||||||
|
@ -87,23 +182,32 @@ void MemArena::ReleaseSpace()
|
||||||
void *MemArena::CreateView(s64 offset, size_t size, void *base)
|
void *MemArena::CreateView(s64 offset, size_t size, void *base)
|
||||||
{
|
{
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
return MapViewOfFileEx(hMemoryMapping, FILE_MAP_ALL_ACCESS, 0, (DWORD)((u64)offset), size, base);
|
#ifdef _XBOX
|
||||||
|
size = roundup(size);
|
||||||
|
// use 64kb pages
|
||||||
|
void * ptr = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
|
||||||
|
return ptr;
|
||||||
#else
|
#else
|
||||||
void *retval = mmap(
|
size = roundup(size);
|
||||||
base, size,
|
void *ptr = MapViewOfFileEx(hMemoryMapping, FILE_MAP_ALL_ACCESS, 0, (DWORD)((u64)offset), size, base);
|
||||||
PROT_READ | PROT_WRITE,
|
return ptr;
|
||||||
MAP_SHARED | ((base == nullptr) ? 0 : MAP_FIXED),
|
#endif
|
||||||
fd, offset);
|
#else
|
||||||
|
void *retval = mmap(base, size, PROT_READ | PROT_WRITE, MAP_SHARED |
|
||||||
|
// Do not sync memory to underlying file. Linux has this by default.
|
||||||
|
#ifdef BLACKBERRY
|
||||||
|
MAP_NOSYNCFILE |
|
||||||
|
#elif defined(__FreeBSD__)
|
||||||
|
MAP_NOSYNC |
|
||||||
|
#endif
|
||||||
|
((base == 0) ? 0 : MAP_FIXED), fd, offset);
|
||||||
|
|
||||||
if (retval == MAP_FAILED)
|
if (retval == MAP_FAILED)
|
||||||
{
|
{
|
||||||
NOTICE_LOG(MEMMAP, "mmap on %s failed", ram_temp_file);
|
NOTICE_LOG(MEMMAP, "mmap on %s (fd: %d) failed", ram_temp_file.c_str(), (int)fd);
|
||||||
return nullptr;
|
return 0;
|
||||||
}
|
}
|
||||||
else
|
|
||||||
{
|
|
||||||
return retval;
|
return retval;
|
||||||
}
|
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -111,13 +215,17 @@ void *MemArena::CreateView(s64 offset, size_t size, void *base)
|
||||||
void MemArena::ReleaseView(void* view, size_t size)
|
void MemArena::ReleaseView(void* view, size_t size)
|
||||||
{
|
{
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
|
#ifndef _XBOX
|
||||||
UnmapViewOfFile(view);
|
UnmapViewOfFile(view);
|
||||||
|
#endif
|
||||||
|
#elif defined(__SYMBIAN32__)
|
||||||
|
memmap->Decommit(((int)view - (int)memmap->Base()) & 0x3FFFFFFF, size);
|
||||||
#else
|
#else
|
||||||
munmap(view, size);
|
munmap(view, size);
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#ifndef __SYMBIAN32__
|
||||||
u8* MemArena::Find4GBBase()
|
u8* MemArena::Find4GBBase()
|
||||||
{
|
{
|
||||||
#ifdef _M_X64
|
#ifdef _M_X64
|
||||||
|
@ -132,42 +240,60 @@ u8* MemArena::Find4GBBase()
|
||||||
return reinterpret_cast<u8*>(0x2300000000ULL);
|
return reinterpret_cast<u8*>(0x2300000000ULL);
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#else
|
#else // 32 bit
|
||||||
// 32 bit
|
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
// The highest thing in any 1GB section of memory space is the locked cache. We only need to fit it.
|
u8* base = (u8*)VirtualAlloc(0, 0x10000000, MEM_RESERVE, PAGE_READWRITE);
|
||||||
u8* base = (u8*)VirtualAlloc(0, 0x31000000, MEM_RESERVE, PAGE_READWRITE);
|
|
||||||
if (base) {
|
if (base) {
|
||||||
VirtualFree(base, 0, MEM_RELEASE);
|
VirtualFree(base, 0, MEM_RELEASE);
|
||||||
}
|
}
|
||||||
return base;
|
return base;
|
||||||
#else
|
#else
|
||||||
#ifdef ANDROID
|
#ifdef IOS
|
||||||
// Android 4.3 changed how mmap works.
|
void* base = NULL;
|
||||||
// if we map it private and then munmap it, we can't use the base returned.
|
if (globalbase == NULL){
|
||||||
// This may be due to changes in them support a full SELinux implementation.
|
base = mmap(0, 0x08000000, PROT_READ | PROT_WRITE,
|
||||||
const int flags = MAP_ANON;
|
MAP_ANON | MAP_SHARED, -1, 0);
|
||||||
#else
|
|
||||||
const int flags = MAP_ANON | MAP_PRIVATE;
|
|
||||||
#endif
|
|
||||||
const u32 MemSize = 0x31000000;
|
|
||||||
void* base = mmap(0, MemSize, PROT_NONE, flags, -1, 0);
|
|
||||||
if (base == MAP_FAILED) {
|
if (base == MAP_FAILED) {
|
||||||
PanicAlert("Failed to map 1 GB of memory space: %s", strerror(errno));
|
PanicAlert("Failed to map 128 MB of memory space: %s", strerror(errno));
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
munmap(base, MemSize);
|
munmap(base, 0x08000000);
|
||||||
|
globalbase = base;
|
||||||
|
}
|
||||||
|
else{ base = globalbase; }
|
||||||
|
#else
|
||||||
|
void* base = mmap(0, 0x10000000, PROT_READ | PROT_WRITE,
|
||||||
|
MAP_ANON | MAP_SHARED, -1, 0);
|
||||||
|
if (base == MAP_FAILED) {
|
||||||
|
PanicAlert("Failed to map 256 MB of memory space: %s", strerror(errno));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
munmap(base, 0x10000000);
|
||||||
|
#endif
|
||||||
return static_cast<u8*>(base);
|
return static_cast<u8*>(base);
|
||||||
#endif
|
#endif
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
// yeah, this could also be done in like two bitwise ops...
|
||||||
|
#define SKIP(a_flags, b_flags)
|
||||||
|
// if (!(a_flags & MV_WII_ONLY) && (b_flags & MV_WII_ONLY))
|
||||||
|
// continue;
|
||||||
|
// if (!(a_flags & MV_FAKE_VMEM) && (b_flags & MV_FAKE_VMEM))
|
||||||
|
// continue;
|
||||||
|
|
||||||
static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32 flags, MemArena *arena) {
|
static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32 flags, MemArena *arena) {
|
||||||
// OK, we know where to find free space. Now grab it!
|
// OK, we know where to find free space. Now grab it!
|
||||||
// We just mimic the popular BAT setup.
|
// We just mimic the popular BAT setup.
|
||||||
u32 position = 0;
|
size_t position = 0;
|
||||||
u32 last_position = 0;
|
size_t last_position = 0;
|
||||||
|
|
||||||
|
#if defined(_XBOX)
|
||||||
|
void *ptr;
|
||||||
|
#endif
|
||||||
|
|
||||||
// Zero all the pointers to be sure.
|
// Zero all the pointers to be sure.
|
||||||
for (int i = 0; i < num_views; i++)
|
for (int i = 0; i < num_views; i++)
|
||||||
|
@ -181,51 +307,98 @@ static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32
|
||||||
int i;
|
int i;
|
||||||
for (i = 0; i < num_views; i++)
|
for (i = 0; i < num_views; i++)
|
||||||
{
|
{
|
||||||
if (views[i].flags & MV_MIRROR_PREVIOUS) {
|
const MemoryView &view = views[i];
|
||||||
|
if (view.size == 0)
|
||||||
|
continue;
|
||||||
|
SKIP(flags, view.flags);
|
||||||
|
if (view.flags & MV_MIRROR_PREVIOUS) {
|
||||||
position = last_position;
|
position = last_position;
|
||||||
} else {
|
}
|
||||||
*(views[i].out_ptr_low) = (u8*)arena->CreateView(position, views[i].size);
|
else {
|
||||||
if (!*views[i].out_ptr_low)
|
#ifdef __SYMBIAN32__
|
||||||
|
*(view.out_ptr_low) = (u8*)((int)arena->memmap->Base() + view.virtual_address);
|
||||||
|
arena->memmap->Commit(view.virtual_address & 0x3FFFFFFF, view.size);
|
||||||
|
}
|
||||||
|
*(view.out_ptr) = (u8*)((int)arena->memmap->Base() + view.virtual_address & 0x3FFFFFFF);
|
||||||
|
#elif defined(_XBOX)
|
||||||
|
*(view.out_ptr_low) = (u8*)(base + view.virtual_address);
|
||||||
|
//arena->memmap->Commit(view.virtual_address & 0x3FFFFFFF, view.size);
|
||||||
|
ptr = VirtualAlloc(base + (view.virtual_address & 0x3FFFFFFF), view.size, MEM_COMMIT, PAGE_READWRITE);
|
||||||
|
}
|
||||||
|
*(view.out_ptr) = (u8*)base + (view.virtual_address & 0x3FFFFFFF);
|
||||||
|
#else
|
||||||
|
*(view.out_ptr_low) = (u8*)arena->CreateView(position, view.size);
|
||||||
|
if (!*view.out_ptr_low)
|
||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
#ifdef _M_X64
|
#ifdef _M_X64
|
||||||
*views[i].out_ptr = (u8*)arena->CreateView(
|
*view.out_ptr = (u8*)arena->CreateView(
|
||||||
position, views[i].size, base + views[i].virtual_address);
|
position, view.size, base + view.virtual_address);
|
||||||
#else
|
#else
|
||||||
if (views[i].flags & MV_MIRROR_PREVIOUS) {
|
if (view.flags & MV_MIRROR_PREVIOUS) { // TODO: should check if the two & 0x3FFFFFFF are identical.
|
||||||
// No need to create multiple identical views.
|
// No need to create multiple identical views.
|
||||||
*views[i].out_ptr = *views[i - 1].out_ptr;
|
*view.out_ptr = *views[i - 1].out_ptr;
|
||||||
} else {
|
}
|
||||||
*views[i].out_ptr = (u8*)arena->CreateView(
|
else {
|
||||||
position, views[i].size, base + (views[i].virtual_address & 0x3FFFFFFF));
|
*view.out_ptr = (u8*)arena->CreateView(
|
||||||
if (!*views[i].out_ptr)
|
position, view.size, base + (view.virtual_address & 0x3FFFFFFF));
|
||||||
|
if (!*view.out_ptr)
|
||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
last_position = position;
|
last_position = position;
|
||||||
position += views[i].size;
|
position += roundup(view.size);
|
||||||
}
|
}
|
||||||
|
|
||||||
return true;
|
return true;
|
||||||
|
|
||||||
bail:
|
bail:
|
||||||
// Argh! ERROR! Free what we grabbed so far so we can try again.
|
// Argh! ERROR! Free what we grabbed so far so we can try again.
|
||||||
MemoryMap_Shutdown(views, i+1, flags, arena);
|
for (int j = 0; j <= i; j++)
|
||||||
|
{
|
||||||
|
if (views[i].size == 0)
|
||||||
|
continue;
|
||||||
|
SKIP(flags, views[i].flags);
|
||||||
|
if (views[j].out_ptr_low && *views[j].out_ptr_low)
|
||||||
|
{
|
||||||
|
arena->ReleaseView(*views[j].out_ptr_low, views[j].size);
|
||||||
|
*views[j].out_ptr_low = NULL;
|
||||||
|
}
|
||||||
|
if (*views[j].out_ptr)
|
||||||
|
{
|
||||||
|
#ifdef _M_X64
|
||||||
|
arena->ReleaseView(*views[j].out_ptr, views[j].size);
|
||||||
|
#else
|
||||||
|
if (!(views[j].flags & MV_MIRROR_PREVIOUS))
|
||||||
|
{
|
||||||
|
arena->ReleaseView(*views[j].out_ptr, views[j].size);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
*views[j].out_ptr = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
|
|
||||||
u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena *arena)
|
u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena *arena)
|
||||||
{
|
{
|
||||||
u32 total_mem = 0;
|
size_t total_mem = 0;
|
||||||
int base_attempts = 0;
|
int base_attempts = 0;
|
||||||
|
|
||||||
for (int i = 0; i < num_views; i++)
|
for (int i = 0; i < num_views; i++)
|
||||||
{
|
{
|
||||||
|
if (views[i].size == 0)
|
||||||
|
continue;
|
||||||
|
SKIP(flags, views[i].flags);
|
||||||
if ((views[i].flags & MV_MIRROR_PREVIOUS) == 0)
|
if ((views[i].flags & MV_MIRROR_PREVIOUS) == 0)
|
||||||
total_mem += views[i].size;
|
total_mem += roundup(views[i].size);
|
||||||
}
|
}
|
||||||
// Grab some pagefile backed memory out of the void ...
|
// Grab some pagefile backed memory out of the void ...
|
||||||
|
#ifndef __SYMBIAN32__
|
||||||
arena->GrabLowMemSpace(total_mem);
|
arena->GrabLowMemSpace(total_mem);
|
||||||
|
#endif
|
||||||
|
|
||||||
// Now, create views in high memory where there's plenty of space.
|
// Now, create views in high memory where there's plenty of space.
|
||||||
#ifdef _M_X64
|
#ifdef _M_X64
|
||||||
|
@ -233,18 +406,25 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
|
||||||
// This really shouldn't fail - in 64-bit, there will always be enough
|
// This really shouldn't fail - in 64-bit, there will always be enough
|
||||||
// address space.
|
// address space.
|
||||||
if (!Memory_TryBase(base, views, num_views, flags, arena))
|
if (!Memory_TryBase(base, views, num_views, flags, arena))
|
||||||
|
{
|
||||||
|
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#elif defined(_XBOX)
|
||||||
|
// Reserve 256MB
|
||||||
|
u8 *base = (u8*)VirtualAlloc(0, 0x10000000, MEM_RESERVE | MEM_LARGE_PAGES, PAGE_READWRITE);
|
||||||
|
if (!Memory_TryBase(base, views, num_views, flags, arena))
|
||||||
{
|
{
|
||||||
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
||||||
exit(0);
|
exit(0);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
#else
|
#elif defined(_WIN32)
|
||||||
#ifdef _WIN32
|
|
||||||
// Try a whole range of possible bases. Return once we got a valid one.
|
// Try a whole range of possible bases. Return once we got a valid one.
|
||||||
u32 max_base_addr = 0x7FFF0000 - 0x31000000;
|
u32 max_base_addr = 0x7FFF0000 - 0x10000000;
|
||||||
u8 *base = NULL;
|
u8 *base = NULL;
|
||||||
|
|
||||||
for (u32 base_addr = 0x40000; base_addr < max_base_addr; base_addr += 0x40000)
|
for (u32 base_addr = 0x01000000; base_addr < max_base_addr; base_addr += 0x400000)
|
||||||
{
|
{
|
||||||
base_attempts++;
|
base_attempts++;
|
||||||
base = (u8 *)base_addr;
|
base = (u8 *)base_addr;
|
||||||
|
@ -254,19 +434,25 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
|
||||||
base_attempts = 0;
|
base_attempts = 0;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
#elif defined(__SYMBIAN32__)
|
||||||
|
arena->memmap = new RChunk();
|
||||||
|
arena->memmap->CreateDisconnectedLocal(0, 0, 0x10000000);
|
||||||
|
if (!Memory_TryBase(arena->memmap->Base(), views, num_views, flags, arena))
|
||||||
|
{
|
||||||
|
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
u8* base = arena->memmap->Base();
|
||||||
#else
|
#else
|
||||||
// Linux32 is fine with the x64 method, although limited to 32-bit with no automirrors.
|
// Linux32 is fine with the x64 method, although limited to 32-bit with no automirrors.
|
||||||
u8 *base = MemArena::Find4GBBase();
|
u8 *base = MemArena::Find4GBBase();
|
||||||
if (!Memory_TryBase(base, views, num_views, flags, arena))
|
if (!Memory_TryBase(base, views, num_views, flags, arena))
|
||||||
{
|
{
|
||||||
|
ERROR_LOG(MEMMAP, "MemoryMap_Setup: Failed finding a memory base.");
|
||||||
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
|
||||||
exit(0);
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
if (base_attempts)
|
if (base_attempts)
|
||||||
PanicAlert("No possible memory base pointer found!");
|
PanicAlert("No possible memory base pointer found!");
|
||||||
|
@ -275,20 +461,17 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
|
||||||
|
|
||||||
void MemoryMap_Shutdown(const MemoryView *views, int num_views, u32 flags, MemArena *arena)
|
void MemoryMap_Shutdown(const MemoryView *views, int num_views, u32 flags, MemArena *arena)
|
||||||
{
|
{
|
||||||
std::set<void*> freeset;
|
|
||||||
for (int i = 0; i < num_views; i++)
|
for (int i = 0; i < num_views; i++)
|
||||||
{
|
{
|
||||||
const MemoryView* view = &views[i];
|
if (views[i].size == 0)
|
||||||
u8** outptrs[2] = {view->out_ptr_low, view->out_ptr};
|
continue;
|
||||||
for (int j = 0; j < 2; j++)
|
SKIP(flags, views[i].flags);
|
||||||
{
|
if (views[i].out_ptr_low && *views[i].out_ptr_low)
|
||||||
u8** outptr = outptrs[j];
|
arena->ReleaseView(*views[i].out_ptr_low, views[i].size);
|
||||||
if (outptr && *outptr && !freeset.count(*outptr))
|
if (*views[i].out_ptr && (views[i].out_ptr_low && *views[i].out_ptr != *views[i].out_ptr_low))
|
||||||
{
|
arena->ReleaseView(*views[i].out_ptr, views[i].size);
|
||||||
arena->ReleaseView(*outptr, view->size);
|
*views[i].out_ptr = NULL;
|
||||||
freeset.insert(*outptr);
|
if (views[i].out_ptr_low)
|
||||||
*outptr = NULL;
|
*views[i].out_ptr_low = NULL;
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
@ -1,7 +1,19 @@
|
||||||
// Copyright 2013 Dolphin Emulator Project
|
// Copyright (C) 2003 Dolphin Project.
|
||||||
// Licensed under GPLv2
|
|
||||||
// Refer to the license.txt file included.
|
|
||||||
|
|
||||||
|
// This program is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, version 2.0 or later versions.
|
||||||
|
|
||||||
|
// This program is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License 2.0 for more details.
|
||||||
|
|
||||||
|
// A copy of the GPL 2.0 should have been included with the program.
|
||||||
|
// If not, see http://www.gnu.org/licenses/
|
||||||
|
|
||||||
|
// Official SVN repository and contact information can be found at
|
||||||
|
// http://code.google.com/p/dolphin-emu/
|
||||||
|
|
||||||
#ifndef _MEMARENA_H_
|
#ifndef _MEMARENA_H_
|
||||||
#define _MEMARENA_H_
|
#define _MEMARENA_H_
|
||||||
|
@ -10,10 +22,14 @@
|
||||||
#include <windows.h>
|
#include <windows.h>
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#ifdef __SYMBIAN32__
|
||||||
|
#include <e32std.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
#include "common.h"
|
#include "common.h"
|
||||||
|
|
||||||
// This class lets you create a block of anonymous RAM, and then arbitrarily map views into it.
|
// This class lets you create a block of anonymous RAM, and then arbitrarily map views into it.
|
||||||
// Multiple views can mirror the same section of the block, which makes it very convenient for emulating
|
// Multiple views can mirror the same section of the block, which makes it very convient for emulating
|
||||||
// memory mirrors.
|
// memory mirrors.
|
||||||
|
|
||||||
class MemArena
|
class MemArena
|
||||||
|
@ -21,11 +37,15 @@ class MemArena
|
||||||
public:
|
public:
|
||||||
void GrabLowMemSpace(size_t size);
|
void GrabLowMemSpace(size_t size);
|
||||||
void ReleaseSpace();
|
void ReleaseSpace();
|
||||||
void *CreateView(s64 offset, size_t size, void *base = nullptr);
|
void *CreateView(s64 offset, size_t size, void *base = 0);
|
||||||
void ReleaseView(void *view, size_t size);
|
void ReleaseView(void *view, size_t size);
|
||||||
|
|
||||||
|
#ifdef __SYMBIAN32__
|
||||||
|
RChunk* memmap;
|
||||||
|
#else
|
||||||
// This only finds 1 GB in 32-bit
|
// This only finds 1 GB in 32-bit
|
||||||
static u8 *Find4GBBase();
|
static u8 *Find4GBBase();
|
||||||
|
#endif
|
||||||
private:
|
private:
|
||||||
|
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
|
@ -37,7 +57,11 @@ private:
|
||||||
|
|
||||||
enum {
|
enum {
|
||||||
MV_MIRROR_PREVIOUS = 1,
|
MV_MIRROR_PREVIOUS = 1,
|
||||||
|
// MV_FAKE_VMEM = 2,
|
||||||
|
// MV_WII_ONLY = 4,
|
||||||
MV_IS_PRIMARY_RAM = 0x100,
|
MV_IS_PRIMARY_RAM = 0x100,
|
||||||
|
MV_IS_EXTRA1_RAM = 0x200,
|
||||||
|
MV_IS_EXTRA2_RAM = 0x400,
|
||||||
};
|
};
|
||||||
|
|
||||||
struct MemoryView
|
struct MemoryView
|
||||||
|
|
Loading…
Reference in a new issue