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ArmPlatformPkg/PrePeiCore: switch to ASM_FUNC() asm macro

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

While we're at it, replace some inefficient uses of LoadConstantToReg()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel
2016-08-10 16:24:24 +02:00
parent d2fa09a134
commit 13dc7fa5a0
5 changed files with 18 additions and 71 deletions
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11
ArmPlatformPkg/PrePeiCore/AArch64/Helper.S
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@@ -14,15 +14,8 @@
#include <AsmMacroIoLibV8.h>
#include <Chipset/AArch64.h>
#start of the code section
.text
.align 3
GCC_ASM_EXPORT(SetupExceptionLevel1)
GCC_ASM_EXPORT(SetupExceptionLevel2)
// Setup EL1 while in EL1
ASM_PFX(SetupExceptionLevel1):
ASM_FUNC(SetupExceptionLevel1)
mov x5, x30 // Save LR
mov x0, #CPACR_CP_FULL_ACCESS
@@ -31,7 +24,7 @@ ASM_PFX(SetupExceptionLevel1):
ret x5
// Setup EL2 while in EL2
ASM_PFX(SetupExceptionLevel2):
ASM_FUNC(SetupExceptionLevel2)
msr sctlr_el2, xzr
mrs x0, hcr_el2 // Read EL2 Hypervisor configuration Register