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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 312A9C34986 for ; Fri, 13 Dec 2019 20:40:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 652F32476E for ; Fri, 13 Dec 2019 20:40:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="C0i1ltvF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728878AbfLMS7j (ORCPT ); Fri, 13 Dec 2019 13:59:39 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:45702 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728591AbfLMS7j (ORCPT ); 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Fri, 13 Dec 2019 18:59:31 +0000 (UTC) Received: from kamzik.brq.redhat.com (ovpn-204-115.brq.redhat.com [10.40.204.115]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 63C8466851; Fri, 13 Dec 2019 18:59:18 +0000 (UTC) Date: Fri, 13 Dec 2019 19:59:15 +0100 From: Andrew Jones To: Eric Auger Cc: eric.auger.pro@gmail.com, maz@kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org, andrew.murray@arm.com, andre.przywara@arm.com, peter.maydell@linaro.org Subject: Re: [kvm-unit-tests RFC 03/10] pmu: Add a pmu struct Message-ID: <20191213185915.7txbnxybupszis7r@kamzik.brq.redhat.com> References: <20191206172724.947-1-eric.auger@redhat.com> <20191206172724.947-4-eric.auger@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191206172724.947-4-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Dec 06, 2019 at 06:27:17PM +0100, Eric Auger wrote: > This struct aims at storing information potentially used by > all tests such as the pmu version, the read-only part of the > PMCR, the number of implemented event counters, ... > > Signed-off-by: Eric Auger > --- > arm/pmu.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/arm/pmu.c b/arm/pmu.c > index 2ad6469..8e95251 100644 > --- a/arm/pmu.c > +++ b/arm/pmu.c > @@ -33,7 +33,15 @@ > > #define NR_SAMPLES 10 > > -static unsigned int pmu_version; > +struct pmu { > + unsigned int version; > + unsigned int nb_implemented_counters; > + uint32_t pmcr_ro; > +}; > + > +static struct pmu pmu; > + > + > #if defined(__arm__) > #define ID_DFR0_PERFMON_SHIFT 24 > #define ID_DFR0_PERFMON_MASK 0xf > @@ -265,7 +273,7 @@ static bool check_cpi(int cpi) > static void pmccntr64_test(void) > { > #ifdef __arm__ > - if (pmu_version == 0x3) { > + if (pmu.version == 0x3) { > if (ERRATA(9e3f7a296940)) { > write_sysreg(0xdead, PMCCNTR64); > report("pmccntr64", read_sysreg(PMCCNTR64) == 0xdead); > @@ -278,9 +286,20 @@ static void pmccntr64_test(void) > /* Return FALSE if no PMU found, otherwise return TRUE */ > static bool pmu_probe(void) > { > - pmu_version = get_pmu_version(); > - report_info("PMU version: %d", pmu_version); > - return pmu_version != 0 && pmu_version != 0xf; > + uint32_t pmcr; > + > + pmu.version = get_pmu_version(); > + report_info("PMU version: %d", pmu.version); > + > + if (pmu.version == 0 || pmu.version == 0xF) ^ stray space > + return false; > + > + pmcr = get_pmcr(); > + pmu.pmcr_ro = pmcr & 0xFFFFFF80; > + pmu.nb_implemented_counters = (pmcr >> PMU_PMCR_N_SHIFT) & PMU_PMCR_N_MASK; > + report_info("Implements %d event counters", pmu.nb_implemented_counters); > + > + return true; > } > > int main(int argc, char *argv[]) > -- > 2.20.1 > 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 5A014C00454 for ; Fri, 13 Dec 2019 21:22:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 CA29920663 for ; 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Fri, 13 Dec 2019 18:59:31 +0000 (UTC) Received: from kamzik.brq.redhat.com (ovpn-204-115.brq.redhat.com [10.40.204.115]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 63C8466851; Fri, 13 Dec 2019 18:59:18 +0000 (UTC) Date: Fri, 13 Dec 2019 19:59:15 +0100 From: Andrew Jones To: Eric Auger Subject: Re: [kvm-unit-tests RFC 03/10] pmu: Add a pmu struct Message-ID: <20191213185915.7txbnxybupszis7r@kamzik.brq.redhat.com> References: <20191206172724.947-1-eric.auger@redhat.com> <20191206172724.947-4-eric.auger@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191206172724.947-4-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, kvm@vger.kernel.org, maz@kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org, andre.przywara@arm.com, andrew.murray@arm.com, kvmarm@lists.cs.columbia.edu, eric.auger.pro@gmail.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Fri, Dec 06, 2019 at 06:27:17PM +0100, Eric Auger wrote: > This struct aims at storing information potentially used by > all tests such as the pmu version, the read-only part of the > PMCR, the number of implemented event counters, ... > > Signed-off-by: Eric Auger > --- > arm/pmu.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/arm/pmu.c b/arm/pmu.c > index 2ad6469..8e95251 100644 > --- a/arm/pmu.c > +++ b/arm/pmu.c > @@ -33,7 +33,15 @@ > > #define NR_SAMPLES 10 > > -static unsigned int pmu_version; > +struct pmu { > + unsigned int version; > + unsigned int nb_implemented_counters; > + uint32_t pmcr_ro; > +}; > + > +static struct pmu pmu; > + > + > #if defined(__arm__) > #define ID_DFR0_PERFMON_SHIFT 24 > #define ID_DFR0_PERFMON_MASK 0xf > @@ -265,7 +273,7 @@ static bool check_cpi(int cpi) > static void pmccntr64_test(void) > { > #ifdef __arm__ > - if (pmu_version == 0x3) { > + if (pmu.version == 0x3) { > if (ERRATA(9e3f7a296940)) { > write_sysreg(0xdead, PMCCNTR64); > report("pmccntr64", read_sysreg(PMCCNTR64) == 0xdead); > @@ -278,9 +286,20 @@ static void pmccntr64_test(void) > /* Return FALSE if no PMU found, otherwise return TRUE */ > static bool pmu_probe(void) > { > - pmu_version = get_pmu_version(); > - report_info("PMU version: %d", pmu_version); > - return pmu_version != 0 && pmu_version != 0xf; > + uint32_t pmcr; > + > + pmu.version = get_pmu_version(); > + report_info("PMU version: %d", pmu.version); > + > + if (pmu.version == 0 || pmu.version == 0xF) ^ stray space > + return false; > + > + pmcr = get_pmcr(); > + pmu.pmcr_ro = pmcr & 0xFFFFFF80; > + pmu.nb_implemented_counters = (pmcr >> PMU_PMCR_N_SHIFT) & PMU_PMCR_N_MASK; > + report_info("Implements %d event counters", pmu.nb_implemented_counters); > + > + return true; > } > > int main(int argc, char *argv[]) > -- > 2.20.1 > 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 C6F96C2D0CA for ; Fri, 13 Dec 2019 21:28:24 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 0A72B24684 for ; 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Fri, 13 Dec 2019 13:59:33 -0500 X-MC-Unique: nejDi4YpNM-3UQq70rGOwA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2D53785B6FD; Fri, 13 Dec 2019 18:59:31 +0000 (UTC) Received: from kamzik.brq.redhat.com (ovpn-204-115.brq.redhat.com [10.40.204.115]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 63C8466851; Fri, 13 Dec 2019 18:59:18 +0000 (UTC) Date: Fri, 13 Dec 2019 19:59:15 +0100 From: Andrew Jones To: Eric Auger Subject: Re: [kvm-unit-tests RFC 03/10] pmu: Add a pmu struct Message-ID: <20191213185915.7txbnxybupszis7r@kamzik.brq.redhat.com> References: <20191206172724.947-1-eric.auger@redhat.com> <20191206172724.947-4-eric.auger@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191206172724.947-4-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Cc: kvm@vger.kernel.org, maz@kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org, andre.przywara@arm.com, kvmarm@lists.cs.columbia.edu, eric.auger.pro@gmail.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Fri, Dec 06, 2019 at 06:27:17PM +0100, Eric Auger wrote: > This struct aims at storing information potentially used by > all tests such as the pmu version, the read-only part of the > PMCR, the number of implemented event counters, ... > > Signed-off-by: Eric Auger > --- > arm/pmu.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/arm/pmu.c b/arm/pmu.c > index 2ad6469..8e95251 100644 > --- a/arm/pmu.c > +++ b/arm/pmu.c > @@ -33,7 +33,15 @@ > > #define NR_SAMPLES 10 > > -static unsigned int pmu_version; > +struct pmu { > + unsigned int version; > + unsigned int nb_implemented_counters; > + uint32_t pmcr_ro; > +}; > + > +static struct pmu pmu; > + > + > #if defined(__arm__) > #define ID_DFR0_PERFMON_SHIFT 24 > #define ID_DFR0_PERFMON_MASK 0xf > @@ -265,7 +273,7 @@ static bool check_cpi(int cpi) > static void pmccntr64_test(void) > { > #ifdef __arm__ > - if (pmu_version == 0x3) { > + if (pmu.version == 0x3) { > if (ERRATA(9e3f7a296940)) { > write_sysreg(0xdead, PMCCNTR64); > report("pmccntr64", read_sysreg(PMCCNTR64) == 0xdead); > @@ -278,9 +286,20 @@ static void pmccntr64_test(void) > /* Return FALSE if no PMU found, otherwise return TRUE */ > static bool pmu_probe(void) > { > - pmu_version = get_pmu_version(); > - report_info("PMU version: %d", pmu_version); > - return pmu_version != 0 && pmu_version != 0xf; > + uint32_t pmcr; > + > + pmu.version = get_pmu_version(); > + report_info("PMU version: %d", pmu.version); > + > + if (pmu.version == 0 || pmu.version == 0xF) ^ stray space > + return false; > + > + pmcr = get_pmcr(); > + pmu.pmcr_ro = pmcr & 0xFFFFFF80; > + pmu.nb_implemented_counters = (pmcr >> PMU_PMCR_N_SHIFT) & PMU_PMCR_N_MASK; > + report_info("Implements %d event counters", pmu.nb_implemented_counters); > + > + return true; > } > > int main(int argc, char *argv[]) > -- > 2.20.1 > _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm