X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FInclude%2FLibrary%2FBaseLib.h;h=329385d9c19f1813d04d55b01b1ef467bce8c779;hb=7ac2bbc147e73440b36e5addd78439eb5e99f3f8;hp=ea61da14ca4974ee18d910fe379cb54c6f9f5450;hpb=db8f40e294c3ab4a8079619da71b6e41dea8044a;p=mirror_edk2.git diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index ea61da14ca..329385d9c1 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -2474,6 +2474,14 @@ InterlockedDecrement ( /** Performs an atomic compare exchange operation on a 32-bit unsigned integer. + Performs an atomic compare exchange operation on the 32-bit unsigned integer + specified by Value. If Value is equal to CompareValue, then Value is set to + ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue, + then Value is returned. The compare exchange operation must be performed using + MP safe mechanisms. + + If Value is NULL, then ASSERT(). + @param Value A pointer to the 32-bit value for the compare exchange operation. @param CompareValue 32-bit value used in compare operation. @@ -2493,6 +2501,13 @@ InterlockedCompareExchange32 ( /** Performs an atomic compare exchange operation on a 64-bit unsigned integer. + Performs an atomic compare exchange operation on the 64-bit unsigned integer specified + by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and + CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. + The compare exchange operation must be performed using MP safe mechanisms. + + If Value is NULL, then ASSERT(). + @param Value A pointer to the 64-bit value for the compare exchange operation. @param CompareValue 64-bit value used in compare operation. @@ -2566,6 +2581,7 @@ MemoryFence ( calls to LongJump() cause a non-zero value to be returned by SetJump(). If JumpBuffer is NULL, then ASSERT(). + For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). @param JumpBuffer A pointer to CPU context buffer. @@ -2586,6 +2602,7 @@ SetJump ( the state of JumpBuffer. If JumpBuffer is NULL, then ASSERT(). + For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). If Value is 0, then ASSERT(). @param JumpBuffer A pointer to CPU context buffer. @@ -4970,4 +4987,120 @@ AsmPrepareAndThunk16 ( IN OUT THUNK_CONTEXT *ThunkContext ); +/** + Transfers control to a function starting with a new stack. + + Transfers control to the function specified by EntryPoint using the new stack + specified by NewStack and passing in the parameters specified by Context1 and + Context2. Context1 and Context2 are optional and may be NULL. The function + EntryPoint must never return. + + If EntryPoint is NULL, then ASSERT(). + If NewStack is NULL, then ASSERT(). + + @param EntryPoint A pointer to function to call with the new stack. + @param Context1 A pointer to the context to pass into the EntryPoint + function. + @param Context2 A pointer to the context to pass into the EntryPoint + function. + @param NewStack A pointer to the new stack to use for the EntryPoint + function. + @param NewBsp A pointer to the new memory location for RSE backing + store. + +**/ +VOID +EFIAPI +AsmSwitchStackAndBackingStore ( + IN SWITCH_STACK_ENTRY_POINT EntryPoint, + IN VOID *Context1, OPTIONAL + IN VOID *Context2, OPTIONAL + IN VOID *NewStack, + IN VOID *NewBsp + ); + +typedef struct { + UINT64 Status; + UINT64 r9; + UINT64 r10; + UINT64 r11; +} PAL_PROC_RETURN; + +// +// IPF Specific functions +// + + +/** + Performs a PAL call using static calling convention. + + An internal function to perform a PAL call using static calling convention. + + @param PalEntryPoint The entry point address of PAL. The address in ar.kr5 + would be used if this parameter were NULL on input. + @param Arg1 The first argument of a PAL call. + @param Arg1 The second argument of a PAL call. + @param Arg1 The third argument of a PAL call. + @param Arg1 The fourth argument of a PAL call. + + @return The values returned in r8, r9, r10 and r11. + +**/ +PAL_PROC_RETURN +PalCallStatic ( + IN CONST VOID *PalEntryPoint, + IN UINT64 Arg1, + IN UINT64 Arg2, + IN UINT64 Arg3, + IN UINT64 Arg4 + ); + + +/** + Returns the current value of ar.itc. + + An internal function to return the current value of ar.itc, which is the + timer tick on IPF. + + @return The currect value of ar.itc + +**/ +INT64 +IpfReadItc ( + VOID + ); + + +/** + Flush a range of cache lines in the cache coherency domain of the calling + CPU. + + Invalidates the cache lines specified by Address and Length. If Address is + not aligned on a cache line boundary, then entire cache line containing + Address is invalidated. If Address + Length is not aligned on a cache line + boundary, then the entire instruction cache line containing Address + Length + -1 is invalidated. This function may choose to invalidate the entire + instruction cache if that is more efficient than invalidating the specified + range. If Length is 0, the no instruction cache lines are invalidated. + Address is returned. + + If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT(). + + @param Address The base address of the instruction lines to invalidate. If + the CPU is in a physical addressing mode, then Address is a + physical address. If the CPU is in a virtual addressing mode, + then Address is a virtual address. + + @param Length The number of bytes to invalidate from the instruction cache. + + @return Address + +**/ +VOID * +EFIAPI +IpfFlushCacheRange ( + IN VOID *Address, + IN UINTN Length + ); + #endif