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Message-ID: <d35eddd6-0089-bbe8-c2f9-416941dcbed6@infradead.org>
Date:   Tue, 25 Jul 2023 08:28:25 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Huisong Li <lihuisong@...wei.com>, xuwei5@...ilicon.com,
        arnd@...db.de, krzk@...nel.org, sudeep.holla@....com
Cc:     linux-kernel@...r.kernel.org, soc@...nel.org,
        linux-arm-kernel@...ts.infradead.org, wanghuiqiang@...wei.com,
        tanxiaofei@...wei.com, liuyonglong@...wei.com
Subject: Re: [PATCH RESEND v3 1/2] soc: hisilicon: Support HCCS driver on
 Kunpeng SoC

Hi--

On 7/25/23 00:57, Huisong Li wrote:
> diff --git a/drivers/soc/hisilicon/Kconfig b/drivers/soc/hisilicon/Kconfig
> new file mode 100644
> index 000000000000..87a1f15cbedb
> --- /dev/null
> +++ b/drivers/soc/hisilicon/Kconfig
> @@ -0,0 +1,19 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> +menu "Hisilicon SoC drivers"
> +	depends on ARCH_HISI || COMPILE_TEST
> +
> +config KUNPENG_HCCS
> +	tristate "HCCS driver on Kunpeng SoC"
> +	depends on ACPI
> +	depends on ARM64 || COMPILE_TEST
> +	help
> +	  The Huawei Cache-Coherent System (HCCS) is a bus protocol standard

Just curious: what makes it a standard?

> +	  for ensuring cache coherent on HiSilicon SoC. The performance of

	                     coherence

> +	  the application may be affected if some hccs ports are in non-full

	                                          HCCS

> +	  lane status, have a large number of CRC errors and so on.
> +
> +	  Say M here if you want to include support for querying the health
> +	  status and port information of HCCS on Kunpeng SoC.
> +
> +endmenu

thanks.
-- 
~Randy

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