mirror of
https://github.com/yuzu-mirror/yuzu.git
synced 2024-09-07 18:09:09 +01:00
common/atomic_ops: Don't cast away volatile from pointers
Preserves the volatility of the pointers being casted.
This commit is contained in:
parent
05781ce8c4
commit
e3f0c93230
3 changed files with 30 additions and 27 deletions
|
@ -14,50 +14,55 @@ namespace Common {
|
|||
|
||||
#if _MSC_VER
|
||||
|
||||
bool AtomicCompareAndSwap(u8 volatile* pointer, u8 value, u8 expected) {
|
||||
u8 result = _InterlockedCompareExchange8((char*)pointer, value, expected);
|
||||
bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
|
||||
const u8 result =
|
||||
_InterlockedCompareExchange8(reinterpret_cast<volatile char*>(pointer), value, expected);
|
||||
return result == expected;
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u16 volatile* pointer, u16 value, u16 expected) {
|
||||
u16 result = _InterlockedCompareExchange16((short*)pointer, value, expected);
|
||||
bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
|
||||
const u16 result =
|
||||
_InterlockedCompareExchange16(reinterpret_cast<volatile short*>(pointer), value, expected);
|
||||
return result == expected;
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u32 volatile* pointer, u32 value, u32 expected) {
|
||||
u32 result = _InterlockedCompareExchange((long*)pointer, value, expected);
|
||||
bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
|
||||
const u32 result =
|
||||
_InterlockedCompareExchange(reinterpret_cast<volatile long*>(pointer), value, expected);
|
||||
return result == expected;
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u64 value, u64 expected) {
|
||||
u64 result = _InterlockedCompareExchange64((__int64*)pointer, value, expected);
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
|
||||
const u64 result = _InterlockedCompareExchange64(reinterpret_cast<volatile __int64*>(pointer),
|
||||
value, expected);
|
||||
return result == expected;
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u128 value, u128 expected) {
|
||||
return _InterlockedCompareExchange128((__int64*)pointer, value[1], value[0],
|
||||
(__int64*)expected.data()) != 0;
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected) {
|
||||
return _InterlockedCompareExchange128(reinterpret_cast<volatile __int64*>(pointer), value[1],
|
||||
value[0],
|
||||
reinterpret_cast<__int64*>(expected.data())) != 0;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
bool AtomicCompareAndSwap(u8 volatile* pointer, u8 value, u8 expected) {
|
||||
bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
|
||||
return __sync_bool_compare_and_swap(pointer, expected, value);
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u16 volatile* pointer, u16 value, u16 expected) {
|
||||
bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
|
||||
return __sync_bool_compare_and_swap(pointer, expected, value);
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u32 volatile* pointer, u32 value, u32 expected) {
|
||||
bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
|
||||
return __sync_bool_compare_and_swap(pointer, expected, value);
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u64 value, u64 expected) {
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
|
||||
return __sync_bool_compare_and_swap(pointer, expected, value);
|
||||
}
|
||||
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u128 value, u128 expected) {
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected) {
|
||||
unsigned __int128 value_a;
|
||||
unsigned __int128 expected_a;
|
||||
std::memcpy(&value_a, value.data(), sizeof(u128));
|
||||
|
|
|
@ -8,10 +8,10 @@
|
|||
|
||||
namespace Common {
|
||||
|
||||
bool AtomicCompareAndSwap(u8 volatile* pointer, u8 value, u8 expected);
|
||||
bool AtomicCompareAndSwap(u16 volatile* pointer, u16 value, u16 expected);
|
||||
bool AtomicCompareAndSwap(u32 volatile* pointer, u32 value, u32 expected);
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u64 value, u64 expected);
|
||||
bool AtomicCompareAndSwap(u64 volatile* pointer, u128 value, u128 expected);
|
||||
bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected);
|
||||
bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected);
|
||||
bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected);
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected);
|
||||
bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected);
|
||||
|
||||
} // namespace Common
|
||||
|
|
|
@ -704,7 +704,7 @@ struct Memory::Impl {
|
|||
u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
|
||||
if (page_pointer != nullptr) {
|
||||
// NOTE: Avoid adding any extra logic to this fast-path block
|
||||
T volatile* pointer = reinterpret_cast<T volatile*>(&page_pointer[vaddr]);
|
||||
auto* pointer = reinterpret_cast<volatile T*>(&page_pointer[vaddr]);
|
||||
return Common::AtomicCompareAndSwap(pointer, data, expected);
|
||||
}
|
||||
|
||||
|
@ -720,9 +720,8 @@ struct Memory::Impl {
|
|||
case Common::PageType::RasterizerCachedMemory: {
|
||||
u8* host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)};
|
||||
system.GPU().InvalidateRegion(vaddr, sizeof(T));
|
||||
T volatile* pointer = reinterpret_cast<T volatile*>(&host_ptr);
|
||||
auto* pointer = reinterpret_cast<volatile T*>(&host_ptr);
|
||||
return Common::AtomicCompareAndSwap(pointer, data, expected);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
UNREACHABLE();
|
||||
|
@ -734,7 +733,7 @@ struct Memory::Impl {
|
|||
u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
|
||||
if (page_pointer != nullptr) {
|
||||
// NOTE: Avoid adding any extra logic to this fast-path block
|
||||
u64 volatile* pointer = reinterpret_cast<u64 volatile*>(&page_pointer[vaddr]);
|
||||
auto* pointer = reinterpret_cast<volatile u64*>(&page_pointer[vaddr]);
|
||||
return Common::AtomicCompareAndSwap(pointer, data, expected);
|
||||
}
|
||||
|
||||
|
@ -750,9 +749,8 @@ struct Memory::Impl {
|
|||
case Common::PageType::RasterizerCachedMemory: {
|
||||
u8* host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)};
|
||||
system.GPU().InvalidateRegion(vaddr, sizeof(u128));
|
||||
u64 volatile* pointer = reinterpret_cast<u64 volatile*>(&host_ptr);
|
||||
auto* pointer = reinterpret_cast<volatile u64*>(&host_ptr);
|
||||
return Common::AtomicCompareAndSwap(pointer, data, expected);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
UNREACHABLE();
|
||||
|
|
Loading…
Reference in a new issue