diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-22 23:01:13 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-22 23:01:13 +0000 |
| commit | 0787bc6184631f20f8bf3b4abd61630a4a9bc672 (patch) | |
| tree | 93b8a671290645e6d9af639463dd214ef676c4a8 /ArmPlatformPkg/Sec/SecEntryPoint.asm | |
| parent | 55a0d64b883bf8cc4db2a7890e29528ec57a2884 (diff) | |
| download | edk2-platforms-0787bc6184631f20f8bf3b4abd61630a4a9bc672.tar.xz | |
ArmPlatformPkg: Introduce Primary core macros
On MpCore system, the primary core can now be any core of the system.
To identify the primary core, you can use 'gArmTokenSpaceGuid.PcdArmPrimaryCoreMask'
and 'gArmTokenSpaceGuid.PcdArmPrimaryCore'.
These PCDs by default use the ClusterId and CoreId to identify the core. And the
primary core is defined as the ClusetrId=0 and CoreId=0.
The helper macros are: IS_PRIMARY_CORE(MpId), GET_CORE_ID(MpId), GET_CLUSTER_ID(MpId),
GET_CORE_POS(MpId), PRIMARY_CORE_ID.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12412 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/Sec/SecEntryPoint.asm')
| -rw-r--r-- | ArmPlatformPkg/Sec/SecEntryPoint.asm | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/ArmPlatformPkg/Sec/SecEntryPoint.asm b/ArmPlatformPkg/Sec/SecEntryPoint.asm index 794a8c02d1..b291e5062f 100644 --- a/ArmPlatformPkg/Sec/SecEntryPoint.asm +++ b/ArmPlatformPkg/Sec/SecEntryPoint.asm @@ -52,10 +52,13 @@ _ModuleEntryPoint _IdentifyCpu // Identify CPU ID bl ArmReadMpidr - and r5, r0, #0xf + // Get ID of this CPU in Multicore system + LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCoreMask), r1) + and r5, r0, r1 - //get ID of this CPU in Multicore system - cmp r5, #0 + // Is it the Primary Core ? + LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r1) + cmp r5, r1 // Only the primary core initialize the memory (SMC) beq _InitMem @@ -97,7 +100,7 @@ _SetupStack ldr r3, StartupAddr // Jump to SEC C code - // r0 = core_id + // r0 = mp_id mov r0, r5 blx r3 |