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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D6E16C35FFF for ; Fri, 21 Mar 2025 11:17:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0oc9phgCq+omO1KdFl1aCLSSlm6dnche/JCMXPeClm8=; b=NUiA9kweYg8H1p1uUkrrJOFY4E bEw/v2FHkhSXgUbQoS6MO4o9uErmULbE3rw5pkXVAL0cn2/imVDUJjiUDSTh2mZxOJ9NJFo3hi62R cbWQzfwUyPPIgY+jlUa2d/HQAk82lUlaF7dAVVuXUg4iVAViFa9d30OSgjMUoDr5cmW1kxWcGa4/K lfoIwRFMW7WWusPqZE6YyVv/wEEDwRPUyrnzw5aP0EmpGF+AxmjF+3czwGw2yQt7VX1aQaY11WPrk DvT+ED1spRc2HV6IL4rvEekQGSoD9Dltbgakw1dhrXzXJbcN8g6UOOQ99pq0gYXIcwD40tILkAW4H HUgKvPhQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tvaMy-0000000Edmc-44JT; Fri, 21 Mar 2025 11:16:56 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tvaKZ-0000000EdLn-1kTj for linux-arm-kernel@lists.infradead.org; Fri, 21 Mar 2025 11:14:28 +0000 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) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.66] X-ClientProxiedBy: lhrpeml100011.china.huawei.com (7.191.174.247) To frapeml500008.china.huawei.com (7.182.85.71) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250321_041427_599375_9972C970 X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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