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 7746CCDB474 for ; Mon, 16 Oct 2023 08:44:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230413AbjJPIoN (ORCPT ); Mon, 16 Oct 2023 04:44:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232527AbjJPIoM (ORCPT ); Mon, 16 Oct 2023 04:44:12 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 482FDA1 for ; Mon, 16 Oct 2023 01:44:11 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D3A9C433C7; Mon, 16 Oct 2023 08:44:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1697445850; bh=HYTgOX8fXTvpvivT3Hkssn+yBqw9bucuLXozSE/94ss=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lGtF5bhb6eYIdSDZJgmow3jn5cH2TdSEdHtIGGyQRRLVfaB/YRqoNxqjiMNIiPNWe yFsvszRNtKu0hrpbIPVfcZM/ZHIbNMzxgv/kd/uWulLxAB6x6KYsf3PtUOgtkBvcin aADh/TgfhsrypPGwXvizbLhr4FOc/tSSv3hDr0sI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jing Zhang , Robin Murphy , Will Deacon , Sasha Levin Subject: [PATCH 5.15 007/102] perf/arm-cmn: Fix the unhandled overflow status of counter 4 to 7 Date: Mon, 16 Oct 2023 10:40:06 +0200 Message-ID: <20231016083953.885428106@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231016083953.689300946@linuxfoundation.org> References: <20231016083953.689300946@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jing Zhang [ Upstream commit 7f949f6f54ff593123ab95b6247bfa4542a65580 ] The register por_dt_pmovsr Bits[7:0] indicates overflow from counters 7 to 0. But in arm_cmn_handle_irq(), only handled the overflow status of Bits[3:0] which results in unhandled overflow status of counters 4 to 7. So let the overflow status of DTC counters 4 to 7 to be handled. Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver") Signed-off-by: Jing Zhang Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/1695612152-123633-1-git-send-email-renyu.zj@linux.alibaba.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- drivers/perf/arm-cmn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 40945343c4cc1..e2a055ba0b7a8 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -1177,7 +1177,7 @@ static irqreturn_t arm_cmn_handle_irq(int irq, void *dev_id) u64 delta; int i; - for (i = 0; i < CMN_DTM_NUM_COUNTERS; i++) { + for (i = 0; i < CMN_DT_NUM_COUNTERS; i++) { if (status & (1U << i)) { ret = IRQ_HANDLED; if (WARN_ON(!dtc->counters[i])) -- 2.40.1