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 656F7EB64D8 for ; Thu, 22 Jun 2023 08:35:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id: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=LXEKlDh/iSfGWN/Cze4FqK3cRjbYuClToibi2/BO/8w=; b=Od8pI4iuzfDHFp UJ4xMhQTfO/QiUfR4affOoZgRGFWGW//D95VjuGTEhCbTy/pZ+dRTWWt1DG9n+r3rj74y0Ssmb13o ZTEqz4VlRB6EoDSw70qCo6S/HU8DA1314PyjVB589flvQmllxQcdVaoP7mlXmtB1Pjzq6MEx8Pm9N jDE3NrBvhb462gHh3xQLQiU+rKCrnddTLIWE0IIFgO9zIP2FMcgPcQ1uzofxARRW4FE8f/Ib94oYu AlxsooOe6NzahQWRaovul9F4Chf5DXItfl9L/QY1IcarVj1OhMwkReJmrJwbGYgAJTgo3U7tyRVs5 g2yTKIDNj91ltQFF9L2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qCFmM-00HRfC-1e; Thu, 22 Jun 2023 08:34:58 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qCFmJ-00HRdG-1G for linux-arm-kernel@lists.infradead.org; Thu, 22 Jun 2023 08:34:56 +0000 Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Qmttx4TWNz6H8F1; Thu, 22 Jun 2023 16:33:45 +0800 (CST) Received: from localhost (10.202.227.76) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Thu, 22 Jun 2023 09:34:51 +0100 Date: Thu, 22 Jun 2023 09:34:50 +0100 From: Jonathan Cameron To: Ilkka Koskinen CC: Will Deacon , Robin Murphy , Besar Wicaksono , Suzuki K Poulose , Mark Rutland , , Subject: Re: [PATCH 3/4] perf: arm_cspmu: Support implementation specific validation Message-ID: <20230622093450.00004ede@Huawei.com> In-Reply-To: <20230622011141.328029-4-ilkka@os.amperecomputing.com> References: <20230622011141.328029-1-ilkka@os.amperecomputing.com> <20230622011141.328029-4-ilkka@os.amperecomputing.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 X-Originating-IP: [10.202.227.76] X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230622_013455_580473_8F219AEE X-CRM114-Status: GOOD ( 17.57 ) 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 21 Jun 2023 18:11:40 -0700 Ilkka Koskinen wrote: > Some platforms may use e.g. different filtering mechanism and, thus, > may need different way to validate the events and group. > > Signed-off-by: Ilkka Koskinen FWIW given it's so simple... Reviewed-by: Jonathan Cameron > --- > drivers/perf/arm_cspmu/arm_cspmu.c | 8 +++++++- > drivers/perf/arm_cspmu/arm_cspmu.h | 3 +++ > 2 files changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c > index fafd734c3218..471d6d7ac81a 100644 > --- a/drivers/perf/arm_cspmu/arm_cspmu.c > +++ b/drivers/perf/arm_cspmu/arm_cspmu.c > @@ -553,7 +553,7 @@ static void arm_cspmu_disable(struct pmu *pmu) > static int arm_cspmu_get_event_idx(struct arm_cspmu_hw_events *hw_events, > struct perf_event *event) > { > - int idx; > + int idx, ret; > struct arm_cspmu *cspmu = to_arm_cspmu(event->pmu); > > if (supports_cycle_counter(cspmu)) { > @@ -587,6 +587,12 @@ static int arm_cspmu_get_event_idx(struct arm_cspmu_hw_events *hw_events, > if (idx >= cspmu->num_logical_ctrs) > return -EAGAIN; > > + if (cspmu->impl.ops.validate_event) { > + ret = cspmu->impl.ops.validate_event(cspmu, event); > + if (ret) > + return ret; > + } > + > set_bit(idx, hw_events->used_ctrs); > > return idx; > diff --git a/drivers/perf/arm_cspmu/arm_cspmu.h b/drivers/perf/arm_cspmu/arm_cspmu.h > index d6d88c246a23..5070d34c2285 100644 > --- a/drivers/perf/arm_cspmu/arm_cspmu.h > +++ b/drivers/perf/arm_cspmu/arm_cspmu.h > @@ -104,6 +104,9 @@ struct arm_cspmu_impl_ops { > /* Set event filter */ > void (*set_ev_filter)(struct arm_cspmu *cspmu, > struct hw_perf_event *hwc, u32 filter); > + /* Implementation specific event validation */ > + int (*validate_event)(struct arm_cspmu *cspmu, > + struct perf_event *event); > /* Hide/show unsupported events */ > umode_t (*event_attr_is_visible)(struct kobject *kobj, > struct attribute *attr, int unused); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7057EB64D8 for ; Thu, 22 Jun 2023 08:35:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230193AbjFVIfL (ORCPT ); Thu, 22 Jun 2023 04:35:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230494AbjFVIez (ORCPT ); Thu, 22 Jun 2023 04:34:55 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57DE4EA for ; Thu, 22 Jun 2023 01:34:54 -0700 (PDT) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Qmttx4TWNz6H8F1; Thu, 22 Jun 2023 16:33:45 +0800 (CST) Received: from localhost (10.202.227.76) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Thu, 22 Jun 2023 09:34:51 +0100 Date: Thu, 22 Jun 2023 09:34:50 +0100 From: Jonathan Cameron To: Ilkka Koskinen CC: Will Deacon , Robin Murphy , Besar Wicaksono , Suzuki K Poulose , Mark Rutland , , Subject: Re: [PATCH 3/4] perf: arm_cspmu: Support implementation specific validation Message-ID: <20230622093450.00004ede@Huawei.com> In-Reply-To: <20230622011141.328029-4-ilkka@os.amperecomputing.com> References: <20230622011141.328029-1-ilkka@os.amperecomputing.com> <20230622011141.328029-4-ilkka@os.amperecomputing.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.227.76] X-ClientProxiedBy: lhrpeml100003.china.huawei.com (7.191.160.210) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 21 Jun 2023 18:11:40 -0700 Ilkka Koskinen wrote: > Some platforms may use e.g. different filtering mechanism and, thus, > may need different way to validate the events and group. > > Signed-off-by: Ilkka Koskinen FWIW given it's so simple... Reviewed-by: Jonathan Cameron > --- > drivers/perf/arm_cspmu/arm_cspmu.c | 8 +++++++- > drivers/perf/arm_cspmu/arm_cspmu.h | 3 +++ > 2 files changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c > index fafd734c3218..471d6d7ac81a 100644 > --- a/drivers/perf/arm_cspmu/arm_cspmu.c > +++ b/drivers/perf/arm_cspmu/arm_cspmu.c > @@ -553,7 +553,7 @@ static void arm_cspmu_disable(struct pmu *pmu) > static int arm_cspmu_get_event_idx(struct arm_cspmu_hw_events *hw_events, > struct perf_event *event) > { > - int idx; > + int idx, ret; > struct arm_cspmu *cspmu = to_arm_cspmu(event->pmu); > > if (supports_cycle_counter(cspmu)) { > @@ -587,6 +587,12 @@ static int arm_cspmu_get_event_idx(struct arm_cspmu_hw_events *hw_events, > if (idx >= cspmu->num_logical_ctrs) > return -EAGAIN; > > + if (cspmu->impl.ops.validate_event) { > + ret = cspmu->impl.ops.validate_event(cspmu, event); > + if (ret) > + return ret; > + } > + > set_bit(idx, hw_events->used_ctrs); > > return idx; > diff --git a/drivers/perf/arm_cspmu/arm_cspmu.h b/drivers/perf/arm_cspmu/arm_cspmu.h > index d6d88c246a23..5070d34c2285 100644 > --- a/drivers/perf/arm_cspmu/arm_cspmu.h > +++ b/drivers/perf/arm_cspmu/arm_cspmu.h > @@ -104,6 +104,9 @@ struct arm_cspmu_impl_ops { > /* Set event filter */ > void (*set_ev_filter)(struct arm_cspmu *cspmu, > struct hw_perf_event *hwc, u32 filter); > + /* Implementation specific event validation */ > + int (*validate_event)(struct arm_cspmu *cspmu, > + struct perf_event *event); > /* Hide/show unsupported events */ > umode_t (*event_attr_is_visible)(struct kobject *kobj, > struct attribute *attr, int unused);