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SPU: Implement Accurate DMA (#8822)

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Eladash 2020-09-03 00:58:29 +03:00 • committed by GitHub
parent ddfa077c3e
commit 73d23eb6e6
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12 changed files with 170 additions and 60 deletions
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14
rpcs3/Emu/Cell/PPUThread.cpp
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@ -1097,10 +1097,16 @@ static T ppu_load_acquire_reservation(ppu_thread& ppu, u32 addr)
}
}())
{
ppu.rtime = vm::reservation_acquire(addr, sizeof(T)) & -128;
ppu.rtime = vm::reservation_acquire(addr, sizeof(T)) & (-128 | vm::dma_lockb);
if (ppu.rtime & 127)
{
continue;
}
ppu.rdata = data;
if ((vm::reservation_acquire(addr, sizeof(T)) & -128) == ppu.rtime) [[likely]]
if ((vm::reservation_acquire(addr, sizeof(T)) & (-128 | vm::dma_lockb)) == ppu.rtime) [[likely]]
{
if (count >= 10) [[unlikely]]
{
@ -1176,7 +1182,7 @@ const auto ppu_stwcx_tx = build_function_asm<u32(*)(u32 raddr, u64 rtime, u64 rd
// Begin transaction
build_transaction_enter(c, fall, args[0], 16);
c.mov(x86::rax, x86::qword_ptr(x86::r10));
c.and_(x86::rax, -128);
c.and_(x86::rax, -128 | vm::dma_lockb);
c.cmp(x86::rax, args[1]);
c.jne(fail);
c.cmp(x86::dword_ptr(x86::r11), args[2].r32());
@ -1222,7 +1228,7 @@ const auto ppu_stdcx_tx = build_function_asm<u32(*)(u32 raddr, u64 rtime, u64 rd
// Begin transaction
build_transaction_enter(c, fall, args[0], 16);
c.mov(x86::rax, x86::qword_ptr(x86::r10));
c.and_(x86::rax, -128);
c.and_(x86::rax, -128 | vm::dma_lockb);
c.cmp(x86::rax, args[1]);
c.jne(fail);
c.cmp(x86::qword_ptr(x86::r11), args[2]);