linux-kernel - Re: [PATCH V2 07/11] arm64: Add TRBE definitions

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Message-ID: <d6af6dae-f3ba-cd35-2ffb-cfbc9d222469@arm.com>
Date:   Wed, 13 Jan 2021 09:21:45 +0000
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org, coresight@...ts.linaro.org
Cc:     mathieu.poirier@...aro.org, mike.leach@...aro.org,
        Linu Cherian <lcherian@...vell.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 07/11] arm64: Add TRBE definitions

On 1/13/21 4:18 AM, Anshuman Khandual wrote:
> This adds TRBE related registers and corresponding feature macros.
> 
> Cc: Mathieu Poirier <mathieu.poirier@...aro.org>
> Cc: Mike Leach <mike.leach@...aro.org>
> Cc: Suzuki K Poulose <suzuki.poulose@....com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
>   arch/arm64/include/asm/sysreg.h | 49 +++++++++++++++++++++++++++++++++++++++++
>   1 file changed, 49 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
> index 4acff97..d60750e7 100644
> --- a/arch/arm64/include/asm/sysreg.h
> +++ b/arch/arm64/include/asm/sysreg.h
> @@ -329,6 +329,55 @@
>   
>   /*** End of Statistical Profiling Extension ***/
>   
> +/*
> + * TRBE Registers
> + */
> +#define SYS_TRBLIMITR_EL1		sys_reg(3, 0, 9, 11, 0)
> +#define SYS_TRBPTR_EL1			sys_reg(3, 0, 9, 11, 1)
> +#define SYS_TRBBASER_EL1		sys_reg(3, 0, 9, 11, 2)
> +#define SYS_TRBSR_EL1			sys_reg(3, 0, 9, 11, 3)
> +#define SYS_TRBMAR_EL1			sys_reg(3, 0, 9, 11, 4)
> +#define SYS_TRBTRG_EL1			sys_reg(3, 0, 9, 11, 6)
> +#define SYS_TRBIDR_EL1			sys_reg(3, 0, 9, 11, 7)
> +
> +#define TRBLIMITR_LIMIT_MASK		GENMASK_ULL(51, 0)
> +#define TRBLIMITR_LIMIT_SHIFT		12
> +#define TRBLIMITR_NVM			BIT(5)
> +#define TRBLIMITR_TRIG_MODE_MASK	GENMASK(1, 0)
> +#define TRBLIMITR_TRIG_MODE_SHIFT	2

This must be 3.

Rest looks fine to me

Suzuki