From patchwork Fri Jun 7 07:47:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13689440 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 9B7F6C27C53 for ; Fri, 7 Jun 2024 07:46:05 +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:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=qupZwwUqvELOLOikH/O4+3+MGF/S7XaEPBWiQ9BKr0Y=; b=jCk5TV3HPOgKOx EcU+BXoqQc2TSXnyg+mBqMqr7mrmkNh+UdJYIfGEmMRLsu7v4IoGx0inZyzOYln+gT9VgG92upgMk MRa/SewL2MLBH76jPkYez6/QXQvON0KWMqreuk1p7fsuVFyCa0CMXBAWUvROTbgWZlaFXmS+Bn76O FQEIrBRXfwOGkTYWtGef/XUkb1l/bvXcbm3jlDHY/higUFpB+sbYPbWDHOt7CcQ7/2EAVUHZ+qGAZ JmgBGu25/+d6dV45yR6Vj2G0u3WY79RO5Ikwobt420Zv5bXpHTbPPWeQeaHqM9andSfWXZfABlFo4 dq69d4A6ZyfglBwqrHsw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sFUIK-0000000D0oE-0gut; Fri, 07 Jun 2024 07:45:52 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sFUIF-0000000D0kT-2ZFO for linux-arm-kernel@lists.infradead.org; Fri, 07 Jun 2024 07:45:51 +0000 Received: from mail.maildlp.com (unknown [172.19.163.174]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4VwY613GyTzmYG8; Fri, 7 Jun 2024 15:40:57 +0800 (CST) Received: from kwepemi500008.china.huawei.com (unknown [7.221.188.139]) by mail.maildlp.com (Postfix) with ESMTPS id 7BC42140123; Fri, 7 Jun 2024 15:45:33 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 7 Jun 2024 15:45:32 +0800 From: Jinjie Ruan To: , , , , , , , , , , CC: Subject: [PATCH] arm64: smp: Fix missing IPI statistics Date: Fri, 7 Jun 2024 15:47:16 +0800 Message-ID: <20240607074716.4068975-1-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemi500008.china.huawei.com (7.221.188.139) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240607_004547_840820_A149923E X-CRM114-Status: UNSURE ( 9.48 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org commit 83cfac95c018 ("genirq: Allow interrupts to be excluded from /proc/interrupts") is to avoid IPIs appear twice in /proc/interrupts. But the commit 331a1b3a836c ("arm64: smp: Add arch support for backtrace using pseudo-NMI") and commit 2f5cd0c7ffde("arm64: kgdb: Implement kgdb_roundup_cpus() to enable pseudo-NMI roundup") set CPU_BACKTRACE and KGDB_ROUNDUP IPIs "IRQ_HIDDEN" flag but not show them in arch_show_interrupts(), which cause the interrupt kstat_irqs accounting is missing in display. Fixes: 331a1b3a836c ("arm64: smp: Add arch support for backtrace using pseudo-NMI") Signed-off-by: Jinjie Ruan --- arch/arm64/kernel/smp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 31c8b3094dd7..7f9a5cf0f3b8 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -1039,7 +1039,8 @@ void __init set_smp_ipi_range(int ipi_base, int n) } ipi_desc[i] = irq_to_desc(ipi_base + i); - irq_set_status_flags(ipi_base + i, IRQ_HIDDEN); + if (i < NR_IPI) + irq_set_status_flags(ipi_base + i, IRQ_HIDDEN); } ipi_irq_base = ipi_base;