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 X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86BD8C433E0 for ; Wed, 15 Jul 2020 08:47:35 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 58B9920657 for ; Wed, 15 Jul 2020 08:47:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="sJm2zKXg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 58B9920657 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=U+ARSkLoh0/k6FmERDCd8ycFTbE4FXLh1KWqb3+N+j4=; b=sJm2zKXgc6tnoLTyq4urFHF96 uYYLSOXs5FywfT/aQ6e4f5tfXgL3KWF1lf0nHs92+uFnPnVrmIhv6KmPRSSAbZtwEsmYaPq/mqjyU l4eMzJmXOXSS7OlG9Ybn/j5Lny5ks/5ALo6qJeQKNH0vSiAnMbebReK/WdwziPsDJu0714moQf9GY OImpnRwq3tWrOhPEFn3BmokHWow6uxp0oc5cebOT3MqHIjP8RbkGIgZCTJAPZOxieIQWIpBHc2e0k 95TFpd2T5/LTSkCUNU2m23luXEPDHC/4/l+ffV4GE+tQUeuhRQCqmcnmQ+raCpCE5+35yAIvwKs0l 58EDXPCVA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvcj9-0002xY-CR; Wed, 15 Jul 2020 08:25:19 +0000 Received: from lhrrgout.huawei.com ([185.176.76.210] helo=huawei.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvcj6-0002vz-5x for linux-arm-kernel@lists.infradead.org; Wed, 15 Jul 2020 08:25:17 +0000 Received: from lhreml724-chm.china.huawei.com (unknown [172.18.7.108]) by Forcepoint Email with ESMTP id 5B634C3BD6AD20BE046F; Wed, 15 Jul 2020 09:25:06 +0100 (IST) Received: from [127.0.0.1] (10.47.6.38) by lhreml724-chm.china.huawei.com (10.201.108.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Wed, 15 Jul 2020 09:25:05 +0100 Subject: Re: [PATCH] drivers/perf: hisi: Add identifier sysfs file To: Will Deacon References: <1592399111-134786-1-git-send-email-john.garry@huawei.com> <20200714083216.GD4516@willie-the-truck> From: John Garry Message-ID: <67db3c30-5aaf-ac17-0256-950494f5ba88@huawei.com> Date: Wed, 15 Jul 2020 09:23:19 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.1.2 MIME-Version: 1.0 In-Reply-To: <20200714083216.GD4516@willie-the-truck> Content-Language: en-US X-Originating-IP: [10.47.6.38] X-ClientProxiedBy: lhreml728-chm.china.huawei.com (10.201.108.79) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200715_042516_335460_1D9B8B1B X-CRM114-Status: GOOD ( 13.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, linuxarm@huawei.com, linux-kernel@vger.kernel.org, qiangqing.zhang@nxp.com, zhangshaokun@hisilicon.com, jolsa@redhat.com, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Will, > > On Wed, Jun 17, 2020 at 09:05:11PM +0800, John Garry wrote: >> To allow userspace to identify the specific implementation of the device, >> add an "identifier" sysfs file. >> >> Encoding is as follows: >> hi1620: 0x0 (aka hip08) >> hi1630: 0x30 >> >> Signed-off-by: John Garry > > I'm struggling a bit to track this. If you still think it's worth pursuing, > please could you post a series with a cover-letter describing what this is > for, a link to the userspace changes and then patches for all the PMU > drivers that need updating? There is no hi1630 userspace support yet. So what I can do is post updated userspace support (including hi1630), and then post kernel parts together for all drivers we could initially support. @Joakim, I'll pick your imx driver changes here, if you don't mind. There was an RFC from you for the SMMUv3 PMU as > well, and also some other "arm64" changes. > I hope to drop that RFC if an updated SMMUv3 spec helps us out. Cheers, John _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel