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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E413C433EF for ; Fri, 22 Oct 2021 13:09:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2DA0F6109E for ; Fri, 22 Oct 2021 13:09:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 2DA0F6109E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=y/bwhfoHSedR4FsxLvbzj/y4F4j47aK6HUSda8guTG4=; b=jPEMmMMPcrq7BvjNjSXwgoYWGk +LL5ft787X+T/x/NYM+7sBr1LJqHqO0zZVghJrB/kE2/+7zi4YwDWLPlpk7rcNGmY00dPivvgRL+O N1p71TAfbP8JqKlNFx3kF1AQ0sCX/0KjltNhe29omR6kgr+DcyqusbW5MkyKh0WakBydSRf/KFMhE tf0G7lVqIk3ceyHGqsIE5qQaeRzjWF2SH43n3MbufQRV7S4PKY6b5axyh7iJG2dcLIu+JaHVXUHVZ u0Ne6H/Is3PP6UYBj1DWjA0Y4QNJaSNOxLTEylBHCqlJB8ENoo3jqvizpdYSgxpkraVQCZ/mJNbu5 AStA8lvA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mduGl-00B1pS-Sw; Fri, 22 Oct 2021 13:07:36 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mduDe-00B13I-Pe for linux-arm-kernel@lists.infradead.org; Fri, 22 Oct 2021 13:04:24 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 014471FB; Fri, 22 Oct 2021 06:04:19 -0700 (PDT) Received: from [10.57.27.231] (unknown [10.57.27.231]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 94AB23F694; Fri, 22 Oct 2021 06:04:17 -0700 (PDT) Subject: Re: Question: the status for SMMUv2 PMU driver To: Leo Yan , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Akio Noda , Jean-Philippe Brucker References: <20211022105517.GE213960@leoy-ThinkPad-X240s> From: Robin Murphy Message-ID: <09094a46-ac57-3fba-bc85-77302526d7aa@arm.com> Date: Fri, 22 Oct 2021 14:04:07 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20211022105517.GE213960@leoy-ThinkPad-X240s> Content-Language: en-GB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211022_060422_938509_CE3B803F X-CRM114-Status: GOOD ( 14.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Leo, On 2021-10-22 11:55, Leo Yan wrote: > Hi Will, Robin, > > [ + Arm mailing list ] > > Linux mainline kernel has supported SMMUv3 PMU with the driver > drivers/perf/arm_smmuv3_pmu.c, but it misses to support SMMUv2 PMU > driver. > > So I want to confirm if there have any existed SMMUv2 PMU driver > can be referred, or if any block issue for upstreaming SMMUv2 > driver? Thank you for suggestions and insights. I wrote one years ago, but it never got to the point of upstreaming since although there were some initial hints of interest, nobody ever followed up actually asking for it. I've just checked and found my old dev branch (based on 4.17-rc1!), but it's not in a fit state to share as-is. Cheers, Robin. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel