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Remove slow vm::writer_lock usage from SPUThread.cpp

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This commit is contained in:
Eladash 2022-05-04 22:41:32 +03:00 committed by Ivan
parent 7a3cbf1876
commit fcbeb2fa22
2 changed files with 12 additions and 8 deletions
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18
rpcs3/Emu/Cell/SPUThread.cpp
View File

@ -3944,19 +3944,23 @@ s64 spu_thread::get_ch_value(u32 ch)
state += cpu_flag::wait;
using resrv_ptr = std::add_pointer_t<decltype(rdata)>;
using resrv_ptr = std::add_pointer_t<const decltype(rdata)>;
resrv_ptr resrv_mem{};
resrv_ptr resrv_mem = vm::get_super_ptr<decltype(rdata)>(raddr);
std::shared_ptr<utils::shm> rdata_shm;
if (raddr && mask1 & SPU_EVENT_LR)
// Does not need to safe-access reservation if LR is the only event masked
// Because it's either an access violation or a livelock if an invalid memory is passed
if (raddr && mask1 > SPU_EVENT_LR)
{
auto area = vm::get(vm::any, raddr);
if (area && (area->flags & vm::preallocated) && vm::check_addr(raddr))
if (area && (area->flags & vm::preallocated))
{
// Obtain pointer to pre-allocated storage
resrv_mem = vm::get_super_ptr<decltype(rdata)>(raddr);
if (!vm::check_addr(raddr))
{
resrv_mem = nullptr;
}
}
else if (area)
{
@ -3967,7 +3971,7 @@ s64 spu_thread::get_ch_value(u32 ch)
{
const u32 data_offs = raddr - base_addr;
rdata_shm = std::move(shm_);
vm::writer_lock{}, resrv_mem = reinterpret_cast<resrv_ptr>(rdata_shm->map_self() + data_offs);
resrv_mem = reinterpret_cast<resrv_ptr>(rdata_shm->get() + data_offs);
}
}

2
rpcs3/Emu/Memory/vm.cpp
View File

@ -698,7 +698,7 @@ namespace vm
{
utils::memory_protect(g_base_addr + addr, size, prot);
}
else if (shm->map_critical(g_base_addr + addr, prot) != g_base_addr + addr || shm->map_critical(g_sudo_addr + addr) != g_sudo_addr + addr)
else if (shm->map_critical(g_base_addr + addr, prot) != g_base_addr + addr || shm->map_critical(g_sudo_addr + addr) != g_sudo_addr + addr || !shm->map_self())
{
fmt::throw_exception("Memory mapping failed - blame Windows (addr=0x%x, size=0x%x, flags=0x%x)", addr, size, flags);
}