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pcsx2
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Core: Reserve data and code areas together 

They need to stay near each other for the x86 JIT to work
This commit is contained in:
TellowKrinkle 2024-08-21 02:50:48 -05:00
parent 6c262b8ef3
commit ece5ff3cee
1 changed files with 16 additions and 48 deletions
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64
pcsx2/Memory.cpp
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@ -49,9 +49,6 @@ namespace Ps2MemSize
namespace SysMemory
{
static u8* TryAllocateVirtualMemory(const char* name, void* file_handle, uptr base, size_t size);
static u8* AllocateVirtualMemory(const char* name, void* file_handle, size_t size, size_t offset_from_base);
static bool AllocateMemoryMap();
static void DumpMemoryMap();
static void ReleaseMemoryMap();
@ -59,6 +56,7 @@ namespace SysMemory
static u8* s_data_memory;
static void* s_data_memory_file_handle;
static u8* s_code_memory;
static std::unique_ptr<SharedMemoryMappingArea> s_memory_mapping_area;
} // namespace SysMemory
static void memAllocate();
@ -86,45 +84,6 @@ namespace HostMemoryMap
}
} // namespace HostMemoryMap
u8* SysMemory::TryAllocateVirtualMemory(const char* name, void* file_handle, uptr base, size_t size)
{
u8* baseptr;
if (file_handle)
baseptr = static_cast<u8*>(HostSys::MapSharedMemory(file_handle, 0, (void*)base, size, PageAccess_ReadWrite()));
else
baseptr = static_cast<u8*>(HostSys::Mmap((void*)base, size, PageAccess_Any()));
if (!baseptr)
return nullptr;
if (base != 0 && (uptr)baseptr != base)
{
if (file_handle)
{
if (baseptr)
HostSys::UnmapSharedMemory(baseptr, size);
}
else
{
if (baseptr)
HostSys::Munmap(baseptr, size);
}
return nullptr;
}
DevCon.WriteLn(Color_Gray, "%-32s @ 0x%016" PRIXPTR " -> 0x%016" PRIXPTR " %s", name,
baseptr, (uptr)baseptr + size, fmt::format("[{}mb]", size / _1mb).c_str());
return baseptr;
}
u8* SysMemory::AllocateVirtualMemory(const char* name, void* file_handle, size_t size, size_t offset_from_base)
{
return TryAllocateVirtualMemory(name, file_handle, 0, size);
}
bool SysMemory::AllocateMemoryMap()
{
s_data_memory_file_handle = HostSys::CreateSharedMemory(HostSys::GetFileMappingName("pcsx2").c_str(), HostMemoryMap::MainSize);
@ -135,16 +94,23 @@ bool SysMemory::AllocateMemoryMap()
return false;
}
if ((s_data_memory = AllocateVirtualMemory("Data Memory", s_data_memory_file_handle, HostMemoryMap::MainSize, 0)) == nullptr)
if (!(s_memory_mapping_area = SharedMemoryMappingArea::Create(HostMemoryMap::MainSize + HostMemoryMap::CodeSize, true)))
{
Host::ReportErrorAsync("Error", "Failed to map data memory at an acceptable location.");
Host::ReportErrorAsync("Error", "Failed to map main memory.");
ReleaseMemoryMap();
return false;
}
if ((s_code_memory = AllocateVirtualMemory("Code Memory", nullptr, HostMemoryMap::CodeSize, HostMemoryMap::MainSize)) == nullptr)
if ((s_data_memory = s_memory_mapping_area->Map(s_data_memory_file_handle, 0, s_memory_mapping_area->BasePointer(), HostMemoryMap::MainSize, PageAccess_ReadWrite())) == nullptr)
{
Host::ReportErrorAsync("Error", "Failed to allocate code memory at an acceptable location.");
Host::ReportErrorAsync("Error", "Failed to map data memory.");
ReleaseMemoryMap();
return false;
}
if ((s_code_memory = s_memory_mapping_area->Map(nullptr, 0, s_memory_mapping_area->OffsetPointer(HostMemoryMap::MainSize), HostMemoryMap::CodeSize, PageAccess_Any())) == nullptr)
{
Host::ReportErrorAsync("Error", "Failed to allocate code memory.");
ReleaseMemoryMap();
return false;
}
@ -186,16 +152,18 @@ void SysMemory::ReleaseMemoryMap()
{
if (s_code_memory)
{
HostSys::Munmap(s_code_memory, HostMemoryMap::CodeSize);
s_memory_mapping_area->Unmap(s_code_memory, HostMemoryMap::CodeSize);
s_code_memory = nullptr;
}
if (s_data_memory)
{
HostSys::UnmapSharedMemory(s_data_memory, HostMemoryMap::MainSize);
s_memory_mapping_area->Unmap(s_data_memory, HostMemoryMap::MainSize);
s_data_memory = nullptr;
}
s_memory_mapping_area.reset();
if (s_data_memory_file_handle)
{
HostSys::DestroySharedMemory(s_data_memory_file_handle);