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* [edk2-devel] [PATCH edk2-platforms 1/1] Platform/ ARM AARCH64: Remove ArmPlatformLib MPCore boilerplate
@ 2024-08-01 11:03 Ard Biesheuvel
  2024-08-01 15:20 ` Leif Lindholm
  2024-08-01 15:42 ` Nhi Pham via groups.io
  0 siblings, 2 replies; 4+ messages in thread
From: Ard Biesheuvel @ 2024-08-01 11:03 UTC (permalink / raw)
  To: devel
  Cc: Ard Biesheuvel, Leif Lindholm, Abdul Lateef Attar, Abner Chang,
	Chuong Tran, Graeme Gregory, Marcin Juszkiewicz, Marcin Wojtas,
	Meenakshi Aggarwal, Narinder Dhillon, Nhi Pham, Paul Grimes,
	Rebecca Cran, Sami Mujawar, Thomas Abraham, Wenyi Xie,
	Jeremy Linton, Ling Jia, Peng Xie, Yiqi Shu

Remove all the ArmPlatformLib routines that are no longer used now that
the MPCore SEC drivers have been retired. The prototypes will be removed
from the ArmPlatformLib library class in a subsequent EDK2 change.

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Chuong Tran <chuong@os.amperecomputing.com>
Cc: Graeme Gregory <graeme@xora.org.uk>
Cc: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Cc: Marcin Wojtas <marcin.s.wojtas@gmail.com>
Cc: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Cc: Narinder Dhillon <ndhillon@marvell.com>
Cc: Nhi Pham <nhi@os.amperecomputing.com>
Cc: Paul Grimes <paul.grimes@amd.com>
Cc: Rebecca Cran <rebecca@os.amperecomputing.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Thomas Abraham <thomas.abraham@arm.com>
Cc: Wenyi Xie <xiewenyi2@huawei.com>
Cc: Jeremy Linton <jeremy.linton@arm.com>
Cc: Ling Jia <jialing@phytium.com.cn>
Cc: Peng Xie <xiepeng@phytium.com.cn>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Thomas Abraham <thomas.abraham@arm.com>
Cc: Wenyi Xie <xiewenyi2@huawei.com>
Cc: Yiqi Shu <shuyiqi@phytium.com.cn>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c                      |  4 --
 Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c                                      |  6 --
 Platform/ARM/JunoPkg/Library/ArmJunoLib/AArch64/ArmJunoHelper.S                 | 39 ------------
 Platform/ARM/JunoPkg/Library/ArmJunoLib/Arm/ArmJunoHelper.S                     | 65 --------------------
 Platform/ARM/Morello/Library/PlatformLib/AArch64/Helper.S                       | 56 -----------------
 Platform/ARM/SgiPkg/Library/PlatformLib/AArch64/Helper.S                        | 34 ----------
 Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/AArch64/RTSMHelper.S        | 41 ------------
 Platform/BeagleBoard/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S  | 22 -------
 Platform/Hisilicon/HiKey/Library/HiKeyLib/HiKeyHelper.S                         | 31 ----------
 Platform/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Helper.S                | 31 ----------
 Platform/NXP/LS1043aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S   | 33 ----------
 Platform/NXP/LS1046aFrwyPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S  | 33 ----------
 Platform/NXP/LX2160aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S   | 33 ----------
 Platform/RaspberryPi/Library/PlatformLib/AArch64/RaspberryPiHelper.S            | 27 --------
 Silicon/AMD/Styx/Library/AmdStyxLib/AArch64/Helper.S                            | 42 -------------
 Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S                  | 59 ------------------
 Silicon/Ampere/AmpereAltraPkg/Library/ArmPlatformLib/ArmPlatformHelper.S        | 26 --------
 Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/AArch64/Helper.S              | 31 ----------
 Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/AArch64/ArmPlatformHelper.S    | 31 ----------
 Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/ARM/ArmPlatformHelper.S        | 32 ----------
 Silicon/Phytium/FT2000-4Pkg/Library/PlatformLib/AArch64/PhytiumPlatformHelper.S | 47 --------------
 Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuHelper.S                      | 42 -------------
 22 files changed, 765 deletions(-)

diff --git a/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c b/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c
index eed1a98324b5..24275254815a 100644
--- a/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c
+++ b/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c
@@ -139,10 +139,6 @@ ArmPlatformInitialize (
   IN  UINTN                     MpId
   )
 {
-  if (!ArmPlatformIsPrimaryCore (MpId)) {
-    return RETURN_SUCCESS;
-  }
-
   // Disable memory remapping and return to normal mapping
   MmioOr32 (SP810_CTRL_BASE, BIT8);
 
diff --git a/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c b/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c
index 6627cecc826a..96bc8b3a2063 100644
--- a/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c
+++ b/Silicon/AMD/Styx/Library/AmdStyxLib/Styx.c
@@ -68,12 +68,6 @@ ArmPlatformInitialize (
   IN  UINTN                     MpId
   )
 {
-  if (!ArmPlatformIsPrimaryCore (MpId)) {
-    return RETURN_SUCCESS;
-  }
-
-  // XXX Place holder XXX ...
-
   return RETURN_SUCCESS;
 }
 
diff --git a/Platform/ARM/JunoPkg/Library/ArmJunoLib/AArch64/ArmJunoHelper.S b/Platform/ARM/JunoPkg/Library/ArmJunoLib/AArch64/ArmJunoHelper.S
index e8f7d195b2bd..6a73fde3afe5 100644
--- a/Platform/ARM/JunoPkg/Library/ArmJunoLib/AArch64/ArmJunoHelper.S
+++ b/Platform/ARM/JunoPkg/Library/ArmJunoLib/AArch64/ArmJunoHelper.S
@@ -9,44 +9,5 @@
 #include <AsmMacroIoLibV8.h>
 #include <Library/ArmLib.h>
 
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_FUNC(ArmPlatformGetCorePosition)
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
-  ret
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  ldr   w0, PrimaryCoreMpid
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-
-  ldr   w1, PrimaryCoreMpid
-
-  cmp   w0, w1
-  cset  x0, eq
-  ret
-
 ASM_FUNC(ArmPlatformPeiBootAction)
-  // The trusted firmware passes the primary CPU MPID through x0 register.
-  // Save it in a variable.
-  adr  x1, PrimaryCoreMpid
-  str  w0, [x1]
   ret
-
-PrimaryCoreMpid:  .word    0x0
diff --git a/Platform/ARM/JunoPkg/Library/ArmJunoLib/Arm/ArmJunoHelper.S b/Platform/ARM/JunoPkg/Library/ArmJunoLib/Arm/ArmJunoHelper.S
index bdd94e3df628..0f5a7169ae6f 100644
--- a/Platform/ARM/JunoPkg/Library/ArmJunoLib/Arm/ArmJunoHelper.S
+++ b/Platform/ARM/JunoPkg/Library/ArmJunoLib/Arm/ArmJunoHelper.S
@@ -9,65 +9,6 @@
 #include <AsmMacroIoLib.h>
 #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
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_FUNC(ArmPlatformGetCorePosition)
-  and   r1, r0, #ARM_CORE_MASK
-  and   r0, r0, #ARM_CLUSTER_MASK
-  add   r0, r1, r0, LSR #7
-  bx    lr
-
-//
-// 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
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  LDRL  (r0, PrimaryCoreMpid)
-  bx    lr
-
-//
-// 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
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  MOV32 (r1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
-  and   r0, r0, r1
-
-  LDRL  (r1, PrimaryCoreMpid)
-
-  cmp   r0, r1
-  moveq r0, #1
-  movne r0, #0
-  bx    lr
-
 //
 // First platform specific function to be called in the PEI phase
 //
@@ -76,10 +17,4 @@ ASM_FUNC(ArmPlatformIsPrimaryCore)
 // the UEFI firmware through the CPU registers.
 //
 ASM_FUNC(ArmPlatformPeiBootAction)
-  // The trusted firmware passes the primary CPU MPID through r0 register.
-  // Save it in a variable.
-  adr  r1, PrimaryCoreMpid
-  str  r0, [r1]
   bx   lr
-
-PrimaryCoreMpid:  .word    0x0
diff --git a/Platform/ARM/Morello/Library/PlatformLib/AArch64/Helper.S b/Platform/ARM/Morello/Library/PlatformLib/AArch64/Helper.S
index 0bc624dfd2b4..25490cfd1acd 100644
--- a/Platform/ARM/Morello/Library/PlatformLib/AArch64/Helper.S
+++ b/Platform/ARM/Morello/Library/PlatformLib/AArch64/Helper.S
@@ -20,59 +20,3 @@
 //
 ASM_FUNC(ArmPlatformPeiBootAction)
   ret
-
-//
-// Return the core position from the value of its MpId register
-//
-// This function returns 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
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_FUNC(ArmPlatformGetCorePosition)
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
-  ret
-
-//
-// 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
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  MOV32 (w0, FixedPcdGet32 (PcdArmPrimaryCore))
-  ret
-
-//
-// 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.
-// Primary core is the core responsible to initialize 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
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-  MOV32 (w1, FixedPcdGet32 (PcdArmPrimaryCore))
-  cmp   w0, w1
-  cset  x0, eq
-  ret
diff --git a/Platform/ARM/SgiPkg/Library/PlatformLib/AArch64/Helper.S b/Platform/ARM/SgiPkg/Library/PlatformLib/AArch64/Helper.S
index e2572b51e960..704ac9bbb1cd 100644
--- a/Platform/ARM/SgiPkg/Library/PlatformLib/AArch64/Helper.S
+++ b/Platform/ARM/SgiPkg/Library/PlatformLib/AArch64/Helper.S
@@ -13,9 +13,6 @@
 .align 3
 
 GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
-GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
-GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
-GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
 GCC_ASM_IMPORT(NtFwConfigDtBlob)
 
 //
@@ -31,34 +28,3 @@ ASM_PFX(ArmPlatformPeiBootAction):
   adr  x10, NtFwConfigDtBlob
   str  x0, [x10]
   ret
-
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_PFX(ArmPlatformGetCorePosition):
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
-  ret
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
-  MOV32 (w0, FixedPcdGet32(PcdArmPrimaryCore))
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_PFX(ArmPlatformIsPrimaryCore):
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCore))
-  cmp   w0, w1
-  cset  x0, eq
-  ret
diff --git a/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/AArch64/RTSMHelper.S b/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/AArch64/RTSMHelper.S
index 65ecf2d94aca..9920452206a0 100644
--- a/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/AArch64/RTSMHelper.S
+++ b/Platform/ARM/VExpressPkg/Library/ArmVExpressLibRTSM/AArch64/RTSMHelper.S
@@ -11,45 +11,4 @@
 ASM_FUNC(ArmPlatformPeiBootAction)
   ret
 
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  MOV32  (w0, FixedPcdGet32 (PcdArmPrimaryCore))
-  ret
-
-# IN None
-# OUT x0 = number of cores present in the system
-ASM_FUNC(ArmGetCpuCountPerCluster)
-  MOV32  (w0, FixedPcdGet32 (PcdCoreCount))
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  MOV32  (w1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-  MOV32  (w1, FixedPcdGet32 (PcdArmPrimaryCore))
-  cmp   w0, w1
-  b.ne  1f
-  mov   x0, #1
-  ret
-1:
-  mov   x0, #0
-  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
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Platform/BeagleBoard/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S b/Platform/BeagleBoard/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S
index 313763a5ebdb..007126e86342 100644
--- a/Platform/BeagleBoard/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S
+++ b/Platform/BeagleBoard/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S
@@ -11,31 +11,9 @@
 .text
 .align 2
 
-GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
-GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
 GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
 
-GCC_ASM_IMPORT(ArmReadMpidr)
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_PFX(ArmPlatformIsPrimaryCore):
-  // BeagleBoard has a single core. We must always return 1.
-  mov   r0, #1
-  bx    lr
-
 ASM_PFX(ArmPlatformPeiBootAction):
   bx    lr
 
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
-  // The BeagleBoard is a uniprocessor platform. The MPIDR of primary core is
-  // always the MPIDR of the calling CPU.
-  b   ASM_PFX(ArmReadMpidr)
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Platform/Hisilicon/HiKey/Library/HiKeyLib/HiKeyHelper.S b/Platform/Hisilicon/HiKey/Library/HiKeyLib/HiKeyHelper.S
index 253b7c6e70f4..4c03e7b7be24 100644
--- a/Platform/Hisilicon/HiKey/Library/HiKeyLib/HiKeyHelper.S
+++ b/Platform/Hisilicon/HiKey/Library/HiKeyLib/HiKeyHelper.S
@@ -10,34 +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
-  cset  x0, eq
-  ret
diff --git a/Platform/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Helper.S b/Platform/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Helper.S
index a3638cef4dc0..a7bae8805e4b 100644
--- a/Platform/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Helper.S
+++ b/Platform/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Helper.S
@@ -13,34 +13,3 @@
 
 ASM_FUNC(ArmPlatformPeiBootAction)
   ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCore))
-  cmp   w0, w1
-  cset  x0, eq
-  ret
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  MOV32 (w0, FixedPcdGet32(PcdArmPrimaryCore))
-  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
diff --git a/Platform/NXP/LS1043aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S b/Platform/NXP/LS1043aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
index b7c6dbdc2e61..1eeb7fed6f19 100644
--- a/Platform/NXP/LS1043aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
+++ b/Platform/NXP/LS1043aRdbPkg/Library/ArmPlatformLib/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/Platform/NXP/LS1046aFrwyPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S b/Platform/NXP/LS1046aFrwyPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
index 4f56a1c366ab..1eeb7fed6f19 100644
--- a/Platform/NXP/LS1046aFrwyPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
+++ b/Platform/NXP/LS1046aFrwyPkg/Library/ArmPlatformLib/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/Platform/NXP/LX2160aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S b/Platform/NXP/LX2160aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
index b7c6dbdc2e61..1eeb7fed6f19 100644
--- a/Platform/NXP/LX2160aRdbPkg/Library/ArmPlatformLib/AArch64/ArmPlatformHelper.S
+++ b/Platform/NXP/LX2160aRdbPkg/Library/ArmPlatformLib/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/Platform/RaspberryPi/Library/PlatformLib/AArch64/RaspberryPiHelper.S b/Platform/RaspberryPi/Library/PlatformLib/AArch64/RaspberryPiHelper.S
index 7008aaf8aa4c..3fb696b13fd3 100644
--- a/Platform/RaspberryPi/Library/PlatformLib/AArch64/RaspberryPiHelper.S
+++ b/Platform/RaspberryPi/Library/PlatformLib/AArch64/RaspberryPiHelper.S
@@ -146,31 +146,4 @@ ASM_FUNC (ArmPlatformPeiBootAction)
     .long   0                           // end tag
     .set    .Lclkinfo_size, . - .Lclkinfo_buffer
 
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC (ArmPlatformGetPrimaryCoreMpId)
-    MOV32  (w0, FixedPcdGet32 (PcdArmPrimaryCore))
-    ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC (ArmPlatformIsPrimaryCore)
-    mov   x0, #1
-    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
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Silicon/AMD/Styx/Library/AmdStyxLib/AArch64/Helper.S b/Silicon/AMD/Styx/Library/AmdStyxLib/AArch64/Helper.S
index 48cd356f45b0..5c3617321347 100644
--- a/Silicon/AMD/Styx/Library/AmdStyxLib/AArch64/Helper.S
+++ b/Silicon/AMD/Styx/Library/AmdStyxLib/AArch64/Helper.S
@@ -14,53 +14,11 @@
 #include <AsmMacroIoLibV8.h>
 #include <Library/ArmLib.h>
 
-PrimaryCoreMpid:  .word    0x0
-PrimaryCoreBoot:  .word    0x0
-
 //VOID
 //ArmPlatformPeiBootAction (
 //  VOID
 //  );
 ASM_FUNC(ArmPlatformPeiBootAction)
-  ldr  w0, PrimaryCoreBoot
-  cbnz w0, 1f
-
-  // Save the primary CPU MPID
-  mrs  x0, mpidr_el1
-  adr  x2, PrimaryCoreMpid
-  mov  w1, #1
-  stp  w0, w1, [x2]
-1:
-  ret
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  ldr   w0, PrimaryCoreMpid
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  ldr   w1, PrimaryCoreMpid
-
-  cmp   w0, w1
-  cset  x0, eq
-  ret
-
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_FUNC(ArmPlatformGetCorePosition)
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
   ret
 
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
index 828c383d6892..6a5550da9133 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
@@ -13,9 +13,6 @@
 .align 3
 
 GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
-GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
-GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
-GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
 
 //
 // First platform specific function to be called in the PEI phase
@@ -28,59 +25,3 @@ ASM_PFX(ArmPlatformPeiBootAction):
   adr  x10, gArgNtFwConfigDtPtr
   str  x0, [x10]
   ret
-
-//
-// Return the core position from the value of its MpId register
-//
-// This function returns 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
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-ASM_PFX(ArmPlatformGetCorePosition):
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
-  ret
-
-//
-// 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
-//  );
-ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
-  MOV32 (w0, FixedPcdGet32(PcdArmPrimaryCore))
-  ret
-
-//
-// 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.
-// Primary core is the core responsible to initialize 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
-//  );
-ASM_PFX(ArmPlatformIsPrimaryCore):
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCoreMask))
-  and   x0, x0, x1
-  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCore))
-  cmp   w0, w1
-  cset  x0, eq
-  ret
diff --git a/Silicon/Ampere/AmpereAltraPkg/Library/ArmPlatformLib/ArmPlatformHelper.S b/Silicon/Ampere/AmpereAltraPkg/Library/ArmPlatformLib/ArmPlatformHelper.S
index 770aa9424eed..7f896a4c7ebc 100644
--- a/Silicon/Ampere/AmpereAltraPkg/Library/ArmPlatformLib/ArmPlatformHelper.S
+++ b/Silicon/Ampere/AmpereAltraPkg/Library/ArmPlatformLib/ArmPlatformHelper.S
@@ -16,30 +16,4 @@
 ASM_FUNC(ArmPlatformPeiBootAction)
   ret
 
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
-  MOV32  (w0, FixedPcdGet32 (PcdArmPrimaryCore))
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformIsPrimaryCore)
-  ldr   x0, =0x1
-  ret
-
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-ASM_FUNC(ArmPlatformGetCorePosition)
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #7
-  ret
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/AArch64/Helper.S b/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/AArch64/Helper.S
index 70315041a6b0..8c324b5509f0 100644
--- a/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/AArch64/Helper.S
+++ b/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/AArch64/Helper.S
@@ -15,35 +15,4 @@
 ASM_FUNC(ArmPlatformPeiBootAction)
   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
-  cset  x0, eq
-  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
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/AArch64/ArmPlatformHelper.S b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/AArch64/ArmPlatformHelper.S
index 6ae908a7b486..81279b39906b 100644
--- a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/AArch64/ArmPlatformHelper.S
+++ b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/AArch64/ArmPlatformHelper.S
@@ -15,34 +15,3 @@
 ASM_FUNC(ArmPlatformPeiBootAction)
   mov   x29, xzr
   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
-  cset  x0, eq
-  ret
diff --git a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/ARM/ArmPlatformHelper.S b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/ARM/ArmPlatformHelper.S
index db43b0f3cc33..2eebc682c85a 100644
--- a/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/ARM/ArmPlatformHelper.S
+++ b/Silicon/Marvell/Armada7k8k/Library/Armada7k8kLib/ARM/ArmPlatformHelper.S
@@ -29,35 +29,3 @@ ASM_FUNC(ArmPlatformPeiBootAction)
   .endif
 
   bx    lr
-
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-// With this function: CorePos = (ClusterId * 2) + CoreId
-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/Silicon/Phytium/FT2000-4Pkg/Library/PlatformLib/AArch64/PhytiumPlatformHelper.S b/Silicon/Phytium/FT2000-4Pkg/Library/PlatformLib/AArch64/PhytiumPlatformHelper.S
index cce23b786197..9be8cf7cab25 100644
--- a/Silicon/Phytium/FT2000-4Pkg/Library/PlatformLib/AArch64/PhytiumPlatformHelper.S
+++ b/Silicon/Phytium/FT2000-4Pkg/Library/PlatformLib/AArch64/PhytiumPlatformHelper.S
@@ -21,56 +21,9 @@
 .align 2
 
 GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
-GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
-GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
-GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
-
-PrimaryCoreMpid:  .word    0x0
 
 
 ASM_PFX(ArmPlatformPeiBootAction):
-  // Save MPIDR_EL1[23:0] in a variable.
-  mov   x20, x30
-  bl    ASM_PFX(ArmReadMpidr)
-  lsl   w0, w0, #8
-  lsr   w0, w0, #8
-  ldr   x1, =PrimaryCoreMpid
-  str   w0, [x1]
-  ret   x20
-
-//UINTN
-//ArmPlatformGetPrimaryCoreMpId (
-//  VOID
-//  );
-ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
-  ldr   x0, =PrimaryCoreMpid
-  ldr   w0, [x0]
-  ret
-
-//UINTN
-//ArmPlatformIsPrimaryCore (
-//  IN UINTN MpId
-//  );
-ASM_PFX(ArmPlatformIsPrimaryCore):
-  mov   x20, x30
-  bl    ASM_PFX(ArmReadMpidr)
-  lsl   w0, w0, #8
-  lsr   w0, w0, #8
-  ldr   x1, =PrimaryCoreMpid
-  ldr   w1, [x1]
-  cmp   w0, w1
-  cset  x0, eq
-  ret   x20
-
-//UINTN
-//ArmPlatformGetCorePosition (
-//  IN UINTN MpId
-//  );
-// With this function: CorePos = (ClusterId * 4) + CoreId
-ASM_PFX(ArmPlatformGetCorePosition):
-  and   x1, x0, #ARM_CORE_MASK
-  and   x0, x0, #ARM_CLUSTER_MASK
-  add   x0, x1, x0, LSR #6
   ret
 
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuHelper.S b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuHelper.S
index d4ad1903cabe..ed51f6613a17 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuHelper.S
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuHelper.S
@@ -10,46 +10,4 @@
 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
-
-//
-// Bits 0..2 of the AA64MFR0_EL1 system register encode the size of the
-// physical address space support on this CPU:
-// 0 == 32 bits, 1 == 36 bits, etc etc
-// 6 and 7 are reserved
-//
-.LPARanges:
-  .byte 32, 36, 40, 42, 44, 48, -1, -1
-
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
--
2.46.0.rc1.232.g9752f9e123-goog



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-- links below jump to the message on this page --
2024-08-01 11:03 [edk2-devel] [PATCH edk2-platforms 1/1] Platform/ ARM AARCH64: Remove ArmPlatformLib MPCore boilerplate Ard Biesheuvel
2024-08-01 15:20 ` Leif Lindholm
2024-08-01 15:42 ` Nhi Pham via groups.io
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