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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 1B001C7EE23 for ; Wed, 1 Mar 2023 23:51:27 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4PRrbx5LN2z3fd3 for ; Thu, 2 Mar 2023 10:51:25 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=e8hRTtkW; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=linux.intel.com (client-ip=192.55.52.43; helo=mga05.intel.com; envelope-from=ricardo.neri-calderon@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=e8hRTtkW; dkim-atps=neutral Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4PRrJb4TyPz3cMJ for ; Thu, 2 Mar 2023 10:38:07 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677713887; x=1709249887; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=gdPe6IuTUA94m909UzTKj74jsvfoBAZ0rK9kosJdsBc=; b=e8hRTtkWHtdR3WPpf7Y5Z0k8Jt9z6LARn12ATMioV0deaSjbfoEbz1OX StlH79Q061bFWFbRG1AhpfHT9MJxpzszS/rVvKC+duwJOydB3ryzDJ/bI 95lN07pqMg+Cr/NL0IACTgp7BXU452kx1qaBGdk2exZcp+vcrwB4HZ3e0 x1dNok4/J1TuyfuYNoHIq0u3uJ9pkCV83GVUIKI6y5RNuEqrhtpSZvTGH tBGqlhNYkUjxYvSDzxkScQVBrAL1pDSwkWNozLAmKrkpK4kW33AGXJM5Z eApPKFXSMiaek75xL7rwOH066d7k5iJFLmCCCag2u0YG/3RptsyYmpmlP g==; X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="420818751" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="420818751" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Mar 2023 15:37:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="738826842" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="738826842" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmsmga008.fm.intel.com with ESMTP; 01 Mar 2023 15:37:58 -0800 From: Ricardo Neri To: Tony Luck , Dave Hansen , "Rafael J. Wysocki" , Reinette Chatre , Dan Williams , Len Brown Subject: [PATCH v7 14/24] x86/hpet: Prepare IRQ assignments to use the X86_ALLOC_AS_NMI flag Date: Wed, 1 Mar 2023 15:47:43 -0800 Message-Id: <20230301234753.28582-15-ricardo.neri-calderon@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> References: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Ravi V. Shankar" , Andi Kleen , Ricardo Neri , Ricardo Neri , Stephane Eranian , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The flag X86_ALLOC_AS_NMI indicates that the interrupts to be allocated in an interrupt domain need to be configured as NMIs. Add an as_nmi argument to hpet_assign_irq(). The HPET clock events do not need NMIs, but the HPET hardlockup detector does. Cc: Andi Kleen Cc: "Ravi V. Shankar" Cc: Stephane Eranian Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Suggested-by: Thomas Gleixner Reviewed-by: Tony Luck Signed-off-by: Ricardo Neri --- Changes since v6: * None Changes since v5: * Introduced this patch. Changes since v4: * N/A Changes since v3: * N/A Changes since v2: * N/A Changes since v1: * N/A --- arch/x86/kernel/hpet.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 3563849c2290..f42ce3fc4528 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -618,7 +618,7 @@ static inline int hpet_dev_id(struct irq_domain *domain) } static int hpet_assign_irq(struct irq_domain *domain, struct hpet_channel *hc, - int dev_num) + int dev_num, bool as_nmi) { struct irq_alloc_info info; @@ -627,6 +627,8 @@ static int hpet_assign_irq(struct irq_domain *domain, struct hpet_channel *hc, info.data = hc; info.devid = hpet_dev_id(domain); info.hwirq = dev_num; + if (as_nmi) + info.flags |= X86_IRQ_ALLOC_AS_NMI; return irq_domain_alloc_irqs(domain, 1, NUMA_NO_NODE, &info); } @@ -755,7 +757,7 @@ static void __init hpet_select_clockevents(void) sprintf(hc->name, "hpet%d", i); - irq = hpet_assign_irq(hpet_domain, hc, hc->num); + irq = hpet_assign_irq(hpet_domain, hc, hc->num, false); if (irq <= 0) continue; -- 2.25.1