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Jit64: Optimize dcbx

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This commit is contained in:
degasus 2015-08-08 17:23:52 +02:00
parent ac84d6d0fa
commit 0d92c8fb89
2 changed files with 9 additions and 7 deletions
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15
Source/Core/Core/PowerPC/Jit64/Jit_LoadStore.cpp
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@ -313,15 +313,13 @@ void Jit64::dcbx(UGeckoInstruction inst)
ADD(32, R(addr), gpr.R(inst.RA));
}
MOV(32, R(value), R(addr));
SHL(32, R(value), Imm8(3));
SHR(32, R(value), Imm8(13));
// Check whether a JIT cache line needs to be invalidated.
LEA(32, value, MScaled(addr, SCALE_8, 0)); // addr << 3 (masks the first 3 bits)
SHR(32, R(value), Imm8(3 + 5 + 5)); // >> 5 for cache line size, >> 5 for width of bitset
MOV(64, R(tmp), ImmPtr(jit->GetBlockCache()->GetBlockBitSet()));
MOV(32, R(value), MComplex(tmp, value, SCALE_4, 0));
MOV(32, R(tmp), R(addr));
SHR(32, R(tmp), Imm8(5));
BT(32, R(value), R(tmp));
SHR(32, R(addr), Imm8(5));
BT(32, R(value), R(addr));
FixupBranch c = J_CC(CC_C, true);
SwitchToFarCode();
@ -329,6 +327,7 @@ void Jit64::dcbx(UGeckoInstruction inst)
BitSet32 registersInUse = CallerSavedRegistersInUse();
ABI_PushRegistersAndAdjustStack(registersInUse, 0);
MOV(32, R(ABI_PARAM1), R(addr));
SHL(32, R(ABI_PARAM1), Imm8(5));
MOV(32, R(ABI_PARAM2), Imm32(32));
XOR(32, R(ABI_PARAM3), R(ABI_PARAM3));
ABI_CallFunction((void*)JitInterface::InvalidateICache);
@ -340,11 +339,13 @@ void Jit64::dcbx(UGeckoInstruction inst)
// dcbi
if (inst.SUBOP10 == 470)
{
// Flush DSP DMA if DMAState bit is set
TEST(16, M(&DSP::g_dspState), Imm16(1 << 9));
c = J_CC(CC_NZ, true);
SwitchToFarCode();
SetJumpTarget(c);
ABI_PushRegistersAndAdjustStack(registersInUse, 0);
SHL(32, R(addr), Imm8(5));
ABI_CallFunctionR((void*)DSP::FlushInstantDMA, addr);
ABI_PopRegistersAndAdjustStack(registersInUse, 0);
c = J(true);

1
Source/Core/Core/PowerPC/JitCommon/JitCache.h
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@ -66,6 +66,7 @@ public:
VALID_BLOCK_MASK_SIZE = 0x20000000 / 32,
VALID_BLOCK_ALLOC_ELEMENTS = VALID_BLOCK_MASK_SIZE / 32
};
// Directly accessed by Jit64.
std::unique_ptr<u32[]> m_valid_block;
ValidBlockBitSet()