linux-kernel - Re: [PATCH 5/5] arm64/sysreg: Convert OSLAR

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Message-ID: <ZGx1jT4nQ9HEVWSE@linux.dev>
Date:   Tue, 23 May 2023 08:13:01 +0000
From:   Oliver Upton <oliver.upton@...ux.dev>
To:     Mark Brown <broonie@...nel.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kvmarm@...ts.linux.dev
Subject: Re: [PATCH 5/5] arm64/sysreg: Convert OSLAR_EL1 to automatic
 generation

On Mon, May 22, 2023 at 05:22:44PM +0100, Mark Brown wrote:
> Convert OSLAR_EL1 to automatic generation as per DDI0601 2023-03. No
> functional change.
> 
> Signed-off-by: Mark Brown <broonie@...nel.org>
> ---
>  arch/arm64/include/asm/sysreg.h | 3 ---
>  arch/arm64/tools/sysreg         | 5 +++++
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
> index 09de958e79ed..3b51e532caa9 100644
> --- a/arch/arm64/include/asm/sysreg.h
> +++ b/arch/arm64/include/asm/sysreg.h
> @@ -140,9 +140,6 @@
>  #define SYS_DBGWCRn_EL1(n)		sys_reg(2, 0, 0, n, 7)
>  #define SYS_MDRAR_EL1			sys_reg(2, 0, 1, 0, 0)
>  
> -#define SYS_OSLAR_EL1			sys_reg(2, 0, 1, 0, 4)
> -#define OSLAR_EL1_OSLK			BIT(0)
> -
>  #define SYS_OSLSR_EL1			sys_reg(2, 0, 1, 1, 4)
>  #define OSLSR_EL1_OSLM_MASK		(BIT(3) | BIT(0))
>  #define OSLSR_EL1_OSLM_NI		0

Should the OSLSR_EL1 definitions be rolled over to the generated scheme
as well?

> diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
> index a5ae0e19fc9f..84df0b7feb45 100644
> --- a/arch/arm64/tools/sysreg
> +++ b/arch/arm64/tools/sysreg
> @@ -83,6 +83,11 @@ Res0	5:1
>  Field	0	SS
>  EndSysreg
>  
> +Sysreg	OSLAR_EL1	2	0	1	0	4
> +Res0	63:1
> +Field	0	OSLK
> +EndSysreg
> +
>  Sysreg ID_PFR0_EL1	3	0	0	1	0
>  Res0	63:32
>  UnsignedEnum	31:28	RAS
> 
> -- 
> 2.30.2
> 

-- 
Thanks,
Oliver