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=-8.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,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 C72F4C433E1 for ; Tue, 14 Jul 2020 08:32:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A65E21D90 for ; Tue, 14 Jul 2020 08:32:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594715543; bh=0zlzzliEOItAVoYIhLD6J0k/s1+kEFpAEJbNA9bURqs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=vzWybibNTe22eJXL08RL/EAkXbB9qGbfy9Yu5er6ZdWEAkzxfv9OXehrE1rKJA7Ic JavGzVHRi50bM/Tpt/rbmVj786sC4UITQAxvK09zJCqhXCqph9S/XMRGyFIjESc/uZ d1wHVxOCHTN5wpr+L904sDSmbtz6M+uz4JXBvRos= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726776AbgGNIcW (ORCPT ); Tue, 14 Jul 2020 04:32:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:58430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725801AbgGNIcV (ORCPT ); Tue, 14 Jul 2020 04:32:21 -0400 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9886B21BE5; Tue, 14 Jul 2020 08:32:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594715541; bh=0zlzzliEOItAVoYIhLD6J0k/s1+kEFpAEJbNA9bURqs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Exc5Ivn9GWaIQh/pdsyxs9hU85cZFng5gjIoScR5HpV0r9ZrBhMfPbwhW3F0w5zxM 1ZaOlF7hevYbG4PEyOPWgGl5YSO7mkXY69a8Yj9Ju5qMav0zc1NPptMnHGylH2xTwU twjln/jBfK2Q+zClosWpmM4wzNWeU3tGriS561tQ= Date: Tue, 14 Jul 2020 09:32:16 +0100 From: Will Deacon To: John Garry Cc: zhangshaokun@hisilicon.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, qiangqing.zhang@nxp.com, jolsa@redhat.com, linuxarm@huawei.com Subject: Re: [PATCH] drivers/perf: hisi: Add identifier sysfs file Message-ID: <20200714083216.GD4516@willie-the-truck> References: <1592399111-134786-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1592399111-134786-1-git-send-email-john.garry@huawei.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi John, 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 was an RFC from you for the SMMUv3 PMU as well, and also some other "arm64" changes. Cheers, Will