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 9F1EBC2BA2B for ; Sat, 4 Apr 2020 14:38:31 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 598B3206F5 for ; Sat, 4 Apr 2020 14:38:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="LaclZAmJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 598B3206F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 14C044B1DA; Sat, 4 Apr 2020 10:38:31 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@redhat.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id r2ky9a4ouKpP; Sat, 4 Apr 2020 10:38:30 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B3EE24B239; Sat, 4 Apr 2020 10:38:28 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 552C04B200 for ; Sat, 4 Apr 2020 10:38:27 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id P7SgxhFYsHJz for ; Sat, 4 Apr 2020 10:38:26 -0400 (EDT) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 6C4B04B203 for ; Sat, 4 Apr 2020 10:38:26 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586011106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+rMYicE8IRsGNdwnkciZxtp1jiaYqa5jnjZhjK0amnI=; b=LaclZAmJQ+XpRCTj61PPQkM1VoRkG77qF5MMqiJ3gl+vh+3M2FO0rgkH8GKevrov+pXsAw M+u5DFZk5llttaMBJk7VrKI1keKahKWVPls+2yFmjODGZtgA0am2dsXht9vzRlceqXNqM1 z4jyoONfdmI5zVAoUal/jhmUCFhEhhM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-51-mdlH_xDpPsam40XFQQCtGg-1; Sat, 04 Apr 2020 10:38:24 -0400 X-MC-Unique: mdlH_xDpPsam40XFQQCtGg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E0957800D4E; Sat, 4 Apr 2020 14:38:22 +0000 (UTC) Received: from kamzik.brq.redhat.com (unknown [10.40.192.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id 62D2A9B912; Sat, 4 Apr 2020 14:38:21 +0000 (UTC) From: Andrew Jones To: pbonzini@redhat.com Subject: [PULL kvm-unit-tests 18/39] arm: pmu: Add a pmu struct Date: Sat, 4 Apr 2020 16:37:10 +0200 Message-Id: <20200404143731.208138-19-drjones@redhat.com> In-Reply-To: <20200404143731.208138-1-drjones@redhat.com> References: <20200404143731.208138-1-drjones@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Andre Przywara 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 From: Eric Auger 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 Reviewed-by: Andre Przywara Signed-off-by: Andrew Jones --- arm/pmu.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/arm/pmu.c b/arm/pmu.c index 44f3543cfa49..d827e8221c54 100644 --- a/arm/pmu.c +++ b/arm/pmu.c @@ -33,7 +33,14 @@ #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 @@ -242,7 +249,7 @@ 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(read_sysreg(PMCCNTR64) == 0xdead, "pmccntr64"); @@ -257,18 +264,24 @@ static bool pmu_probe(void) { uint32_t pmcr; - pmu_version = get_pmu_version(); - if (pmu_version == 0 || pmu_version == 0xf) + pmu.version = get_pmu_version(); + if (pmu.version == 0 || pmu.version == 0xf) return false; - report_info("PMU version: %d", pmu_version); + report_info("PMU version: %d", pmu.version); pmcr = get_pmcr(); - report_info("PMU implementer/ID code/counters: %#x(\"%c\")/%#x/%d", + report_info("PMU implementer/ID code: %#x(\"%c\")/%#x", (pmcr >> PMU_PMCR_IMP_SHIFT) & PMU_PMCR_IMP_MASK, ((pmcr >> PMU_PMCR_IMP_SHIFT) & PMU_PMCR_IMP_MASK) ? : ' ', - (pmcr >> PMU_PMCR_ID_SHIFT) & PMU_PMCR_ID_MASK, - (pmcr >> PMU_PMCR_N_SHIFT) & PMU_PMCR_N_MASK); + (pmcr >> PMU_PMCR_ID_SHIFT) & PMU_PMCR_ID_MASK); + + /* store read-only and RES0 fields of the PMCR bottom-half*/ + pmu.pmcr_ro = pmcr & 0xFFFFFF00; + 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; } -- 2.25.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm