[PATCH 5/6] Platforms/Hisilicon/ArmPlatformLibPv660: switch to ASM_FUNC() asm macro

[Ard Biesheuvel <ard.biesheuvel@linaro.org>]

Annotate functions with ASM_FUNC() so that they are emitted into
separate sections.

While we're at it, clean up some inefficient uses of LoadConstantToReg()
(which require runtime relocation).

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 Chips/Hisilicon/Library/ArmPlatformLibPv660/AArch64/Helper.S | 44 +++++---------------
 1 file changed, 10 insertions(+), 34 deletions(-)

diff --git a/Chips/Hisilicon/Library/ArmPlatformLibPv660/AArch64/Helper.S b/Chips/Hisilicon/Library/ArmPlatformLibPv660/AArch64/Helper.S
index 3b545f188f64..3422df279c73 100644
--- a/Chips/Hisilicon/Library/ArmPlatformLibPv660/AArch64/Helper.S
+++ b/Chips/Hisilicon/Library/ArmPlatformLibPv660/AArch64/Helper.S
@@ -16,59 +16,35 @@
 //
 
 #include <AsmMacroIoLibV8.h>
-#include <Base.h>
 #include <Library/ArmLib.h>
-#include <Library/PcdLib.h>
-#include <AutoGen.h>
 
-.text
-.align 2
-
-GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
-GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
-GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
-GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
-GCC_ASM_EXPORT(ArmGetCpuCountPerCluster)
-
-GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
-GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
-GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdCoreCount)
-
-ASM_PFX(ArmPlatformPeiBootAction):
+ASM_FUNC(ArmPlatformPeiBootAction)
   ret
 
 //UINTN
 //ArmPlatformGetPrimaryCoreMpId (
 //  VOID
 //  );
-ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
-  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, x0)
-  ldrh   w0, [x0]
+ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
+  MOV32 (w0, FixedPcdGet32(PcdArmPrimaryCore))
   ret
 
 # IN None
 # OUT x0 = number of cores present in the system
-ASM_PFX(ArmGetCpuCountPerCluster):
-  LoadConstantToReg (_gPcd_FixedAtBuild_PcdCoreCount, x0)
-  ldrh  w0, [x0]
+ASM_FUNC(ArmGetCpuCountPerCluster)
+  MOV32 (w0, FixedPcdGet32(PcdCoreCount))
   ret
 
 //UINTN
 //ArmPlatformIsPrimaryCore (
 //  IN UINTN MpId
 //  );
-ASM_PFX(ArmPlatformIsPrimaryCore):
-  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, x1)
-  ldrh  w1, [x1]
+ASM_FUNC(ArmPlatformIsPrimaryCore)
+  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCoreMask))
   and   x0, x0, x1
-  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, x1)
-  ldrh  w1, [x1]
+  MOV32 (w1, FixedPcdGet32(PcdArmPrimaryCore))
   cmp   w0, w1
-  b.ne  1f
-  mov   x0, #1
-  ret
-1:
-  mov   x0, #0
+  cset  x0, eq
   ret
 
 //UINTN
@@ -76,7 +52,7 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
 //  IN UINTN MpId
 //  );
 // With this function: CorePos = (ClusterId * 4) + CoreId
-ASM_PFX(ArmPlatformGetCorePosition):
+ASM_FUNC(ArmPlatformGetCorePosition)
   and   x1, x0, #ARM_CORE_MASK
   and   x0, x0, #ARM_CLUSTER_MASK
   add   x0, x1, x0, LSR #6
-- 
2.7.4