From patchwork Fri May 24 13:27:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 10959871 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C4EAF76 for ; Fri, 24 May 2019 13:27:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B19832835B for ; Fri, 24 May 2019 13:27:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A292328617; Fri, 24 May 2019 13:27:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 514022835B for ; Fri, 24 May 2019 13:27:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject: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=YaN9xuNey4wbzLWrE5KRJaag++d0o4BGspoMFWulYDw=; b=qZg nl+UQ2i0wetF5b6aUrqgeu/3f6dEj27bRYs68lBceMnMMdyST811Ew3eimxi7qD/X/op9UvwPqW+3 ydc1G0t89hpcAE5dIPXuDT3CPkioN3RRrk4Fu+cH/5kLx4KRYu0V57ImRQCacGPJlgvTqKv4aHyQy n1itmaq7vis4PrNd1QscI6mNupOWIpqvml/nFAcNZOb31O8RoASbKqaf6uyX109m+WXUdY4et1gW8 GO/5OyrDIiL7oaqcLxEQq1sCnFr9KGVtfJejYGMnN185I5MFLvia82dwokakrrMZ5/0q05uYFDHpX xiEmVE8PW3T9PK3yGUrJvSnjcwIO5SA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hUAEe-0000W3-OM; Fri, 24 May 2019 13:27:48 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hUAEc-0000VV-1y for linux-arm-kernel@lists.infradead.org; Fri, 24 May 2019 13:27:47 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 54658A78; Fri, 24 May 2019 06:27:45 -0700 (PDT) Received: from fuggles.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 1624E3F5AF; Fri, 24 May 2019 06:27:43 -0700 (PDT) From: Will Deacon To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now Date: Fri, 24 May 2019 14:27:35 +0100 Message-Id: <20190524132735.6592-1-will.deacon@arm.com> X-Mailer: git-send-email 2.11.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190524_062746_102759_954C221B X-CRM114-Status: GOOD ( 11.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marc Zyngier , catalin.marinas@arm.com, Will Deacon , "# 5 . 1" , Julien Thierry MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Although we merged support for pseudo-nmi using interrupt priority masking in 5.1, we've since uncovered a number of non-trivial issues with the implementation. Although there are patches pending to address these problems, we're facing issues that prevent us from merging them at this current time: https://lkml.kernel.org/r/1556553607-46531-1-git-send-email-julien.thierry@arm.com For now, simply mark this optional feature as BROKEN in the hope that we can fix things properly in the near future. Cc: # 5.1 Cc: Marc Zyngier Cc: Julien Thierry Signed-off-by: Will Deacon Acked-by: Marc Zyngier --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6a9544606da3..f6275c265d41 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1422,6 +1422,7 @@ config ARM64_MODULE_PLTS config ARM64_PSEUDO_NMI bool "Support for NMI-like interrupts" + depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com select CONFIG_ARM_GIC_V3 help Adds support for mimicking Non-Maskable Interrupts through the use of