#define SPIN_LOCK_RELEASED ((SPIN_LOCK)1)\r
#define SPIN_LOCK_ACQUIRED ((SPIN_LOCK)2)\r
\r
+/**\r
+ Performs an atomic increment of an 32-bit unsigned integer.\r
+\r
+ Performs an atomic increment of the 32-bit unsigned integer specified by\r
+ Value and returns the incremented value. The increment operation must be\r
+ performed using MP safe mechanisms. The state of the return value is not\r
+ guaranteed to be MP safe.\r
+\r
+ @param Value A pointer to the 32-bit value to increment.\r
+\r
+ @return The incremented value.\r
+\r
+**/\r
UINT32\r
EFIAPI\r
InternalSyncIncrement (\r
IN volatile UINT32 *Value\r
);\r
\r
+/**\r
+ Performs an atomic decrement of an 32-bit unsigned integer.\r
+\r
+ Performs an atomic decrement of the 32-bit unsigned integer specified by\r
+ Value and returns the decrement value. The decrement operation must be\r
+ performed using MP safe mechanisms. The state of the return value is not\r
+ guaranteed to be MP safe.\r
+\r
+ @param Value A pointer to the 32-bit value to decrement.\r
+\r
+ @return The decrement value.\r
+\r
+**/\r
UINT32\r
EFIAPI\r
InternalSyncDecrement (\r
IN volatile UINT32 *Value\r
);\r
\r
+/**\r
+ Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r
+\r
+ Performs an atomic compare exchange operation on the 32-bit unsigned integer\r
+ specified by Value. If Value is equal to CompareValue, then Value is set to \r
+ ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r
+ then Value is returned. The compare exchange operation must be performed using \r
+ MP safe mechanisms.\r
+\r
+ @param Value A pointer to the 32-bit value for the compare exchange\r
+ operation.\r
+ @param CompareValue 32-bit value used in compare operation.\r
+ @param ExchangeValue 32-bit value used in exchange operation.\r
+\r
+ @return The original *Value before exchange.\r
+\r
+**/\r
UINT32\r
EFIAPI\r
InternalSyncCompareExchange32 (\r
IN UINT32 ExchangeValue\r
);\r
\r
+/**\r
+ Performs an atomic compare exchange operation on a 64-bit unsigned integer.\r
+\r
+ Performs an atomic compare exchange operation on the 64-bit unsigned integer specified \r
+ by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and \r
+ CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. \r
+ The compare exchange operation must be performed using MP safe mechanisms.\r
+\r
+ @param Value A pointer to the 64-bit value for the compare exchange\r
+ operation.\r
+ @param CompareValue 64-bit value used in compare operation.\r
+ @param ExchangeValue 64-bit value used in exchange operation.\r
+\r
+ @return The original *Value before exchange.\r
+\r
+**/\r
UINT64\r
EFIAPI\r
InternalSyncCompareExchange64 (\r
Tick = 0;\r
Start = 0;\r
End = 0;\r
- if (FixedPcdGet32 (PcdSpinLockTimeout) > 0) {\r
+ if (PcdGet32 (PcdSpinLockTimeout) > 0) {\r
Tick = GetPerformanceCounter ();\r
Timeout = DivU64x32 (\r
MultU64x32 (\r
GetPerformanceCounterProperties (&Start, &End),\r
- FixedPcdGet32 (PcdSpinLockTimeout)\r
+ PcdGet32 (PcdSpinLockTimeout)\r
),\r
1000000\r
);\r
/**\r
Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r
\r
+ Performs an atomic compare exchange operation on the 32-bit unsigned integer\r
+ specified by Value. If Value is equal to CompareValue, then Value is set to \r
+ ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r
+ then Value is returned. The compare exchange operation must be performed using \r
+ MP safe mechanisms.\r
+\r
+ If Value is NULL, then ASSERT().\r
+\r
@param Value A pointer to the 32-bit value for the compare exchange\r
operation.\r
@param CompareValue 32-bit value used in compare operation.\r
UINT32\r
EFIAPI\r
InterlockedCompareExchange32 (\r
- IN UINT32 *Value,\r
+ IN OUT UINT32 *Value,\r
IN UINT32 CompareValue,\r
IN UINT32 ExchangeValue\r
)\r
/**\r
Performs an atomic compare exchange operation on a 64-bit unsigned integer.\r
\r
+ Performs an atomic compare exchange operation on the 64-bit unsigned integer specified \r
+ by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and \r
+ CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. \r
+ The compare exchange operation must be performed using MP safe mechanisms.\r
+\r
+ If Value is NULL, then ASSERT().\r
+\r
@param Value A pointer to the 64-bit value for the compare exchange\r
operation.\r
@param CompareValue 64-bit value used in compare operation.\r
UINT64\r
EFIAPI\r
InterlockedCompareExchange64 (\r
- IN UINT64 *Value,\r
+ IN OUT UINT64 *Value,\r
IN UINT64 CompareValue,\r
IN UINT64 ExchangeValue\r
)\r
VOID *\r
EFIAPI\r
InterlockedCompareExchangePointer (\r
- IN VOID **Value,\r
+ IN OUT VOID **Value,\r
IN VOID *CompareValue,\r
IN VOID *ExchangeValue\r
)\r