From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6E156221578 for ; Fri, 21 Mar 2025 11:14:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742555666; cv=none; b=qHxfCzD2rSxmRtskQaJLtPY4Acsjs+rcZ1CupHv0G3Z0THg1l6hIFXH5ojQw7oKzRP3LmCHskAaK+UTpgMqfKfADBnpONHeH973LP8dpinnJLBFyPqKLdTVlUYegOjRIVIHV8IYSlro400pLPEyXhRJXqULJj6IEaqds1OkShC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742555666; c=relaxed/simple; bh=gGVeuBAXsKb4g8YbohrfDvQUVmmozNKYR4xjmnWSsCg=; h=Date:From:To:CC:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nYupH3gdZdwM1Ozj/P0RDlmZy/XYGr4/oMP3lFPv6n/jE2lWhG4z28p/DUmBKkya2ucSRfsc5HTuo5h2oynszNbySw/EfqKlY3EKk081/nKyBCGNUou1R6SsA5PMdWnkllbZbbq7ab9nt3SRlFfXkwTlsm76Q7PtMbKBczM0iho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4ZK09w4mnlz6839B; Fri, 21 Mar 2025 19:11:00 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id 0C1E01406AC; Fri, 21 Mar 2025 19:14:22 +0800 (CST) Received: from localhost (10.203.177.66) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 21 Mar 2025 12:14:21 +0100 Date: Fri, 21 Mar 2025 11:14:20 +0000 From: Jonathan Cameron To: Yicong Yang CC: , , , , , , , , Subject: Re: [PATCH v2 5/8] drivers/perf: hisi: Relax the event number check of v2 PMUs Message-ID: <20250321111420.00003182@huawei.com> In-Reply-To: <20250321073846.23507-6-yangyicong@huawei.com> References: <20250321073846.23507-1-yangyicong@huawei.com> <20250321073846.23507-6-yangyicong@huawei.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: lhrpeml100011.china.huawei.com (7.191.174.247) To frapeml500008.china.huawei.com (7.182.85.71) On Fri, 21 Mar 2025 15:38:43 +0800 Yicong Yang wrote: > From: Junhao He > > The supported event number range of each Uncore PMUs is provided by > each driver in hisi_pmu::check_event and out of range events > will be rejected. A later version with expanded event number range > needs to register the PMU with updated hisi_pmu::check_event > even if it's the only update, which means the expanded events > cannot be used unless the driver's updated. However the unsupported > events won't be counted by the hardware so we can relax the event > number check to allow the use the expanded events. > > Signed-off-by: Junhao He > Signed-off-by: Yicong Yang Reviewed-by: Jonathan Cameron