Add ArmPlatformPkg from ARM Ltd. patch.

[mirror_edk2.git] / ArmPlatformPkg / Library / PeiServicesTablePointerLib / PeiServicesTablePointer.c

diff --git a/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c b/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
new file mode 100644 (file)
index 0000000..9f25f46
--- /dev/null
+++ b/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
@@ -0,0 +1,70 @@
+/** @file\r
+  PEI Services Table Pointer Library.\r
+  \r
+  This library is used for PEIM which does executed from flash device directly but\r
+  executed in memory.\r
+\r
+  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+  This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php.\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <PiPei.h>\r
+#include <Library/PeiServicesTablePointerLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/PcdLib.h>\r
+\r
+/**\r
+  Caches a pointer PEI Services Table. \r
+ \r
+  Caches the pointer to the PEI Services Table specified by PeiServicesTablePointer \r
+  in a platform specific manner.\r
+  \r
+  If PeiServicesTablePointer is NULL, then ASSERT().\r
+  \r
+  @param    PeiServicesTablePointer   The address of PeiServices pointer.\r
+**/\r
+VOID\r
+EFIAPI\r
+SetPeiServicesTablePointer (\r
+  IN CONST EFI_PEI_SERVICES ** PeiServicesTablePointer\r
+  )\r
+{\r
+  UINTN *PeiPtrLoc;\r
+  ASSERT (PeiServicesTablePointer != NULL);\r
+\r
+  PeiPtrLoc = (UINTN *)(UINTN)PcdGet32(PcdPeiServicePtrAddr);\r
+  *PeiPtrLoc = (UINTN)PeiServicesTablePointer;\r
+}\r
+\r
+/**\r
+  Retrieves the cached value of the PEI Services Table pointer.\r
+\r
+  Returns the cached value of the PEI Services Table pointer in a CPU specific manner \r
+  as specified in the CPU binding section of the Platform Initialization Pre-EFI \r
+  Initialization Core Interface Specification.\r
+  \r
+  If the cached PEI Services Table pointer is NULL, then ASSERT().\r
+\r
+  @return  The pointer to PeiServices.\r
+\r
+**/\r
+CONST EFI_PEI_SERVICES **\r
+EFIAPI\r
+GetPeiServicesTablePointer (\r
+  VOID\r
+  )\r
+{\r
+  UINTN *PeiPtrLoc;\r
+\r
+  PeiPtrLoc = (UINTN *)(UINTN)PcdGet32(PcdPeiServicePtrAddr);\r
+  return (CONST EFI_PEI_SERVICES **)*PeiPtrLoc;\r
+}\r
+\r
+\r