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Merge pull request #8729 from merryhime/cp15-barriers

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arm_dynarmic_cp15: Implement CP15DMB/CP15DSB/CP15ISB
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bunnei 2022-08-09 16:12:53 -07:00 committed by GitHub
commit 4bd8adfe42
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2 changed files with 29 additions and 4 deletions
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31
src/core/arm/dynarmic/arm_dynarmic_cp15.cpp
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@ -8,6 +8,10 @@
#include "core/core.h"
#include "core/core_timing.h"
#ifdef _MSC_VER
#include <intrin.h>
#endif
using Callback = Dynarmic::A32::Coprocessor::Callback;
using CallbackOrAccessOneWord = Dynarmic::A32::Coprocessor::CallbackOrAccessOneWord;
using CallbackOrAccessTwoWords = Dynarmic::A32::Coprocessor::CallbackOrAccessTwoWords;
@ -47,12 +51,31 @@ CallbackOrAccessOneWord DynarmicCP15::CompileSendOneWord(bool two, unsigned opc1
switch (opc2) {
case 4:
// CP15_DATA_SYNC_BARRIER
// This is a dummy write, we ignore the value written here.
return &dummy_value;
return Callback{
[](Dynarmic::A32::Jit*, void*, std::uint32_t, std::uint32_t) -> std::uint64_t {
#ifdef _MSC_VER
_mm_mfence();
_mm_lfence();
#else
asm volatile("mfence\n\tlfence\n\t" : : : "memory");
#endif
return 0;
},
std::nullopt,
};
case 5:
// CP15_DATA_MEMORY_BARRIER
// This is a dummy write, we ignore the value written here.
return &dummy_value;
return Callback{
[](Dynarmic::A32::Jit*, void*, std::uint32_t, std::uint32_t) -> std::uint64_t {
#ifdef _MSC_VER
_mm_mfence();
#else
asm volatile("mfence\n\t" : : : "memory");
#endif
return 0;
},
std::nullopt,
};
}
}

2
src/core/arm/dynarmic/arm_dynarmic_cp15.h
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@ -35,6 +35,8 @@ public:
ARM_Dynarmic_32& parent;
u32 uprw = 0;
u32 uro = 0;
friend class ARM_Dynarmic_32;
};
} // namespace Core