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Fix SPU LS MMIO

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This commit is contained in:
Eladash 2020-11-23 20:02:05 +02:00 committed by Ivan
parent f0cba1371c
commit 3f028fbb83
2 changed files with 26 additions and 22 deletions
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46
rpcs3/Emu/Cell/SPUThread.cpp
View File

@ -1668,12 +1668,12 @@ spu_thread::spu_thread(lv2_spu_group* group, u32 index, std::string_view name, u
if (!group)
{
vm::get(vm::spu)->falloc(RAW_SPU_BASE_ADDR + RAW_SPU_OFFSET * index, SPU_LS_SIZE, &shm);
verify(HERE), vm::get(vm::spu)->falloc(RAW_SPU_BASE_ADDR + RAW_SPU_OFFSET * index, SPU_LS_SIZE, &shm);
}
else
{
// 0x1000 indicates falloc to allocate page with no access rights in base memory
vm::get(vm::spu)->falloc(SPU_FAKE_BASE_ADDR + SPU_LS_SIZE * (cpu_thread::id & 0xffffff), SPU_LS_SIZE, &shm, 0x1000);
verify(HERE), vm::get(vm::spu)->falloc(SPU_FAKE_BASE_ADDR + SPU_LS_SIZE * (cpu_thread::id & 0xffffff), SPU_LS_SIZE, &shm, 0x1000);
}
vm::writer_lock(0);
@ -1811,6 +1811,23 @@ void spu_thread::do_dma_transfer(spu_thread* _this, const spu_mfc_cmd& args, u8*
u32 eal = args.eal;
u32 lsa = args.lsa & 0x3ffff;
// Keep src point to const
u8* dst = nullptr;
const u8* src = nullptr;
std::tie(dst, src) = [&]() -> std::pair<u8*, const u8*>
{
u8* dst = vm::_ptr<u8>(eal);
u8* src = ls + lsa;
if (is_get)
{
std::swap(src, dst);
}
return {dst, src};
}();
// SPU Thread Group MMIO (LS and SNR) and RawSPU MMIO
if (_this && eal >= RAW_SPU_BASE_ADDR)
{
@ -1851,9 +1868,13 @@ void spu_thread::do_dma_transfer(spu_thread* _this, const spu_mfc_cmd& args, u8*
{
auto& spu = static_cast<spu_thread&>(*_this->group->threads[_this->group->threads_map[index]]);
if (offset + args.size - 1 < SPU_LS_SIZE) // LS access
if (offset + args.size <= SPU_LS_SIZE) // LS access
{
eal = SPU_FAKE_BASE_ADDR * (spu.id & 0xffffff) + offset; // redirect access
// redirect access
if (auto ptr = spu.ls + offset; is_get)
src = ptr;
else
dst = ptr;
}
else if (!is_get && args.size == 4 && (offset == SYS_SPU_THREAD_SNR1 || offset == SYS_SPU_THREAD_SNR2))
{
@ -1871,29 +1892,12 @@ void spu_thread::do_dma_transfer(spu_thread* _this, const spu_mfc_cmd& args, u8*
}
}
// Keep src point to const
u8* dst = nullptr;
const u8* src = nullptr;
// Cleanup: if PUT or GET happens after PUTLLC failure, it's too complicated and it's easier to just give up
if (_this)
{
_this->last_faddr = 0;
}
std::tie(dst, src) = [&]() -> std::pair<u8*, const u8*>
{
u8* dst = vm::_ptr<u8>(eal);
u8* src = ls + lsa;
if (is_get)
{
std::swap(src, dst);
}
return {dst, src};
}();
// It is so rare that optimizations are not implemented (TODO)
alignas(64) static constexpr u8 zero_buf[0x10000]{};

2
rpcs3/Emu/Cell/lv2/sys_spu.cpp
View File

@ -682,7 +682,7 @@ error_code sys_spu_thread_group_destroy(ppu_thread& ppu, u32 id)
if (auto thread = t.get())
{
// Deallocate LS
vm::get(vm::spu)->dealloc(SPU_FAKE_BASE_ADDR + SPU_LS_SIZE * (thread->id & 0xffffff), &thread->shm);
verify(HERE), vm::get(vm::spu)->dealloc(SPU_FAKE_BASE_ADDR + SPU_LS_SIZE * (thread->id & 0xffffff), &thread->shm);
// Remove ID from IDM (destruction will occur in group destructor)
idm::remove<named_thread<spu_thread>>(thread->id);