From nobody Fri Jan 2 20:37:07 2026 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 60E18E95A9A for ; Mon, 9 Oct 2023 04:37:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345070AbjJIEhi (ORCPT ); Mon, 9 Oct 2023 00:37:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345055AbjJIEhh (ORCPT ); Mon, 9 Oct 2023 00:37:37 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DD548A4 for ; Sun, 8 Oct 2023 21:37:35 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1F8631FB; Sun, 8 Oct 2023 21:38:16 -0700 (PDT) Received: from a077893.blr.arm.com (a077893.blr.arm.com [10.162.41.8]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id AC24D3F7A6; Sun, 8 Oct 2023 21:37:33 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Will Deacon , Mark Rutland , linux-kernel@vger.kernel.org Subject: [PATCH] drivers: perf: arm_pmuv3: Update 'pmc_width' based on actual HW event width Date: Mon, 9 Oct 2023 10:07:24 +0530 Message-Id: <20231009043724.175100-1-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This updates 'perf_event_mmap_page->pmc_width' based on actual HW event's width that are currently missing i.e ARMPMU_EVT_63BIT and ARMPMU_EVT_47BIT. Cc: Will Deacon Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- This applies on v6.6-rc5. drivers/perf/arm_pmuv3.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/perf/arm_pmuv3.c b/drivers/perf/arm_pmuv3.c index fe4db1831662..94723d00548e 100644 --- a/drivers/perf/arm_pmuv3.c +++ b/drivers/perf/arm_pmuv3.c @@ -1375,6 +1375,10 @@ void arch_perf_update_userpage(struct perf_event *ev= ent, if (userpg->cap_user_rdpmc) { if (event->hw.flags & ARMPMU_EVT_64BIT) userpg->pmc_width =3D 64; + else if (event->hw.flags & ARMPMU_EVT_63BIT) + userpg->pmc_width =3D 63; + else if (event->hw.flags & ARMPMU_EVT_47BIT) + userpg->pmc_width =3D 47; else userpg->pmc_width =3D 32; } --=20 2.25.1