+++ /dev/null
-//\r
-// Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r
-//\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 <Base.h>\r
-#include <Library/ArmLib.h>\r
-#include <Library/PcdLib.h>\r
-\r
-#include <Chipset/ArmCortexA9.h>\r
-\r
-#include <AutoGen.h>\r
-\r
- INCLUDE AsmMacroIoLib.inc\r
-\r
- EXPORT ArmPlatformPeiBootAction\r
- EXPORT ArmGetCpuCountPerCluster\r
- EXPORT ArmPlatformIsPrimaryCore\r
- EXPORT ArmPlatformGetPrimaryCoreMpId\r
- EXPORT ArmPlatformGetCorePosition\r
-\r
- AREA RTSMHelper, CODE, READONLY\r
-\r
-ArmPlatformPeiBootAction FUNCTION\r
- bx lr\r
- ENDFUNC\r
-\r
-// IN None\r
-// OUT r0 = SCU Base Address\r
-ArmGetScuBaseAddress FUNCTION\r
- // Read Configuration Base Address Register. ArmCBar cannot be called to get\r
- // the Configuration BAR as a stack is not necessary setup. The SCU is at the\r
- // offset 0x0000 from the Private Memory Region.\r
- mrc p15, 4, r0, c15, c0, 0\r
- bx lr\r
- ENDFUNC\r
-\r
-//UINTN\r
-//ArmPlatformGetPrimaryCoreMpId (\r
-// VOID\r
-// );\r
-ArmPlatformGetPrimaryCoreMpId FUNCTION\r
- mov32 r0, FixedPcdGet32(PcdArmPrimaryCore)\r
- bx lr\r
- ENDFUNC\r
-\r
-// IN None\r
-// OUT r0 = number of cores present in the system\r
-ArmGetCpuCountPerCluster FUNCTION\r
- stmfd SP!, {r1-r2}\r
-\r
- // Read CP15 MIDR\r
- mrc p15, 0, r1, c0, c0, 0\r
-\r
- // Check if the CPU is A15\r
- mov r1, r1, LSR #4\r
- mov r0, #ARM_CPU_TYPE_MASK\r
- and r1, r1, r0\r
-\r
- mov r0, #ARM_CPU_TYPE_A15\r
- cmp r1, r0\r
- beq _Read_cp15_reg\r
-\r
-_CPU_is_not_A15\r
- mov r2, lr ; Save link register\r
- bl ArmGetScuBaseAddress ; Read SCU Base Address\r
- mov lr, r2 ; Restore link register val\r
- ldr r0, [r0, #A9_SCU_CONFIG_OFFSET] ; Read SCU Config reg to get CPU count\r
- b _Return\r
-\r
-_Read_cp15_reg\r
- mrc p15, 1, r0, c9, c0, 2 ; Read C9 register of CP15 to get CPU count\r
- lsr r0, #24\r
-\r
-\r
-_Return\r
- and r0, r0, #3\r
- // Add '1' to the number of CPU on the Cluster\r
- add r0, r0, #1\r
- ldmfd SP!, {r1-r2}\r
- bx lr\r
- ENDFUNC\r
-\r
-//UINTN\r
-//ArmPlatformIsPrimaryCore (\r
-// IN UINTN MpId\r
-// );\r
-ArmPlatformIsPrimaryCore FUNCTION\r
- mov32 r1, FixedPcdGet32(PcdArmPrimaryCoreMask)\r
- and r0, r0, r1\r
- mov32 r1, FixedPcdGet32(PcdArmPrimaryCore)\r
- ldr r1, [r1]\r
- cmp r0, r1\r
- moveq r0, #1\r
- movne r0, #0\r
- bx lr\r
- ENDFUNC\r
-\r
-//UINTN\r
-//ArmPlatformGetCorePosition (\r
-// IN UINTN MpId\r
-// );\r
-ArmPlatformGetCorePosition FUNCTION\r
- and r1, r0, #ARM_CORE_MASK\r
- and r0, r0, #ARM_CLUSTER_MASK\r
- add r0, r1, r0, LSR #7\r
- bx lr\r
- ENDFUNC\r
-\r
- END\r