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authorArd Biesheuvel <ardb@kernel.org>2024-08-01 12:22:44 +0200
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2024-08-30 08:01:28 +0000
commit0a6d41ba0a080ff40620ff304fa9c99bb2874570 (patch)
treec1255b6bc2557587910527511730ea49a08037ff /ArmPlatformPkg
parent5c566abb126a4ab0e462ef9d0667e4617a8f8a44 (diff)
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ArmPlatformPkg/ArmPlatformLib: Drop unused MPCore routines
Some of the boilerplate in ArmPlatformLib is only relevant when entering UEFI on multiple cores, and this is no longer supported. So retire the associated helper routines. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'ArmPlatformPkg')
-rw-r--r--ArmPlatformPkg/Include/Library/ArmPlatformLib.h43
-rw-r--r--ArmPlatformPkg/Library/ArmPlatformLibNull/AArch64/ArmPlatformHelper.S33
-rw-r--r--ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S31
-rw-r--r--ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c4
4 files changed, 0 insertions, 111 deletions
diff --git a/ArmPlatformPkg/Include/Library/ArmPlatformLib.h b/ArmPlatformPkg/Include/Library/ArmPlatformLib.h
index cd87743eba..38e7bdaf58 100644
--- a/ArmPlatformPkg/Include/Library/ArmPlatformLib.h
+++ b/ArmPlatformPkg/Include/Library/ArmPlatformLib.h
@@ -22,49 +22,6 @@
#include <Library/ArmLib.h>
/**
- Return the core position from the value of its MpId register
-
- This function returns the core position from the position 0 in the processor.
- This function might be called from assembler before any stack is set.
-
- @return Return the core position
-
-**/
-UINTN
-ArmPlatformGetCorePosition (
- IN UINTN MpId
- );
-
-/**
- Return a non-zero value if the callee is the primary core
-
- This function returns a non-zero value if the callee is the primary core.
- The primary core is the core responsible to initialize the hardware and run UEFI.
- This function might be called from assembler before any stack is set.
-
- @return Return a non-zero value if the callee is the primary core.
-
-**/
-UINTN
-ArmPlatformIsPrimaryCore (
- IN UINTN MpId
- );
-
-/**
- Return the MpId of the primary core
-
- This function returns the MpId of the primary core.
- This function might be called from assembler before any stack is set.
-
- @return Return the MpId of the primary core
-
-**/
-UINTN
-ArmPlatformGetPrimaryCoreMpId (
- VOID
- );
-
-/**
Return the current Boot Mode
This function returns the boot reason on the platform
diff --git a/ArmPlatformPkg/Library/ArmPlatformLibNull/AArch64/ArmPlatformHelper.S b/ArmPlatformPkg/Library/ArmPlatformLibNull/AArch64/ArmPlatformHelper.S
index b7c6dbdc2e..1eeb7fed6f 100644
--- a/ArmPlatformPkg/Library/ArmPlatformLibNull/AArch64/ArmPlatformHelper.S
+++ b/ArmPlatformPkg/Library/ArmPlatformLibNull/AArch64/ArmPlatformHelper.S
@@ -10,36 +10,3 @@
ASM_FUNC(ArmPlatformPeiBootAction)
ret
-
-//UINTN
-//ArmPlatformGetCorePosition (
-// IN UINTN MpId
-// );
-// With this function: CorePos = (ClusterId * 4) + CoreId
-ASM_FUNC(ArmPlatformGetCorePosition)
- and x1, x0, #ARM_CORE_MASK
- and x0, x0, #ARM_CLUSTER_MASK
- add x0, x1, x0, LSR #6
- ret
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-// VOID
-// );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
- MOV32 (w0, FixedPcdGet32 (PcdArmPrimaryCore))
- ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-// IN UINTN MpId
-// );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
- MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
- and x0, x0, x1
- MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCore))
- cmp w0, w1
- mov x0, #1
- mov x1, #0
- csel x0, x0, x1, eq
- ret
diff --git a/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S b/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S
index aedae55623..342d6d5e0a 100644
--- a/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S
+++ b/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S
@@ -10,34 +10,3 @@
ASM_FUNC(ArmPlatformPeiBootAction)
bx lr
-
-//UINTN
-//ArmPlatformGetCorePosition (
-// IN UINTN MpId
-// );
-ASM_FUNC(ArmPlatformGetCorePosition)
- and r1, r0, #ARM_CORE_MASK
- and r0, r0, #ARM_CLUSTER_MASK
- add r0, r1, r0, LSR #7
- bx lr
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-// VOID
-// );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
- MOV32 (r0, FixedPcdGet32 (PcdArmPrimaryCore))
- bx lr
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-// IN UINTN MpId
-// );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
- MOV32 (r1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
- and r0, r0, r1
- MOV32 (r1, FixedPcdGet32 (PcdArmPrimaryCore))
- cmp r0, r1
- moveq r0, #1
- movne r0, #0
- bx lr
diff --git a/ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c b/ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c
index 852275f44f..83c7d16be4 100644
--- a/ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c
+++ b/ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c
@@ -90,10 +90,6 @@ ArmPlatformInitialize (
IN UINTN MpId
)
{
- if (!ArmPlatformIsPrimaryCore (MpId)) {
- return RETURN_SUCCESS;
- }
-
// TODO: Implement me
return RETURN_SUCCESS;