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Message-ID: <62c5c936-a108-0a10-d1ab-9db9dd71a6ee@linaro.org>
Date: Fri, 7 Apr 2023 17:11:02 +0200
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Subject: Re: [edk2-devel] [PATCH v4] add ArmCpuInfo EFI application
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
 Leif Lindholm <quic_llindhol@quicinc.com>, Rebecca Cran <rebecca@bsdio.com>,
 Pedro Falcato <pedro.falcato@gmail.com>
References: <CAKbZUD1iRLmFtBgRkdO_OhX0G204ZXUdnL+ttE3gVvgfCcPuOQ@mail.gmail.com>
 <1753ABF1A296B040.11304@groups.io>
From: "Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>
Organization: Linaro
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W dniu 7.04.2023 o 16:02, Marcin Juszkiewicz via groups.io pisze:
> +++ b/ArmPkg/Application/ArmCpuInfo/readregs.S
> @@ -0,0 +1,41 @@
> +#include <AsmMacroIoLibV8.h>
> +
> +ASM_FUNC(ReadAa64Pfr0El1)
> +        mrs x0, ID_AA64PFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Pfr1El1)
> +        mrs x0, ID_AA64PFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Dfr0El1)
> +        mrs x0, ID_AA64DFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Dfr1El1)
> +        mrs x0, ID_AA64DFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar0El1)
> +        mrs x0, ID_AA64ISAR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar1El1)
> +        mrs x0, ID_AA64ISAR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar2El1)
> +        mrs x0, ID_AA64ISAR2_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr0El1)
> +        mrs x0, ID_AA64MMFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr1El1)
> +        mrs x0, ID_AA64MMFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr2El1)
> +        mrs x0, ID_AA64MMFR2_EL1
> +        ret

Those functions probably should be moved to 
ArmPkg/Library/ArmLib/AArch64/ code. But I do not understand EDK2 
buildbuildsystem enough to sort that part out.