From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39C0EC001DE for ; Tue, 25 Jul 2023 15:28:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232540AbjGYP2m (ORCPT ); Tue, 25 Jul 2023 11:28:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229478AbjGYP2k (ORCPT ); Tue, 25 Jul 2023 11:28:40 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8A3E19AF for ; Tue, 25 Jul 2023 08:28:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=yHIDH3l8nS0DiflUh1G8237ylog4AjfhZXROuCwR23k=; b=CzyeVHbb52nYoy0qM1pgd5syCt F7BJYzK9MlDXL3P33HWcbVEqPRO+gNOrCmSWLRewddXvoV2d3RcwnP1In/+dLvEMZ0HBJtFcmDR8l 1sl15GKFuslbG74AmstMA0zC8jIy/03ysGMijlh7uQTsSIZeto391l26ifk5kVc3RYddXW8DqBpwH ZfgQeQZD/8EjHzwy42NZhtfxxnRCvlEXv91EykXHRMKlBfWglOsk8V+EtobkZBy7awp/HVx0T1iMR q6+H4fbqj9HRO7MsPneDJhmBYJOSQ3ljDg1OZ3bP7NdXweN/FD2kQZQW0p+TavDe5Dyrb9EBjMiIR B7kr5b9g==; Received: from [2601:1c2:980:9ec0::2764] by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qOJxc-007vLu-0g; Tue, 25 Jul 2023 15:28:28 +0000 Message-ID: Date: Tue, 25 Jul 2023 08:28:25 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH RESEND v3 1/2] soc: hisilicon: Support HCCS driver on Kunpeng SoC Content-Language: en-US To: Huisong Li , xuwei5@hisilicon.com, arnd@arndb.de, krzk@kernel.org, sudeep.holla@arm.com Cc: linux-kernel@vger.kernel.org, soc@kernel.org, linux-arm-kernel@lists.infradead.org, wanghuiqiang@huawei.com, tanxiaofei@huawei.com, liuyonglong@huawei.com References: <20230424073020.4039-1-lihuisong@huawei.com> <20230725075706.48939-1-lihuisong@huawei.com> <20230725075706.48939-2-lihuisong@huawei.com> From: Randy Dunlap In-Reply-To: <20230725075706.48939-2-lihuisong@huawei.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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