From patchwork Tue Nov 5 20:58:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 11228571 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 63CAF16B1 for ; Tue, 5 Nov 2019 21:04:52 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 4B67E2087E for ; Tue, 5 Nov 2019 21:04:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="a7Z7KLQX"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="SipvUo3B" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4B67E2087E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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:References: In-Reply-To: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:List-Owner; bh=vuVrjcX6O7A2Y7eyB8CeGbNkmuXhgMbrrhCPGJx8Yw8=; b=a7Z7KLQXugVYTaJcg33i5PPvTm 0foRCjuxM5P8bEpLBVWW9e700El/U6p6QUXxueNsLK10gGmwC0sM3X/5qP8O0gRUe71FZc6n5v12I Eev59unfTnYaN46OqLDlccKjsWcZOG4Zg0shL94Wh2HMV7LHYJx9SQJUn6YQwyMRSiu7gdnK+e3fE nYaVeWwl9/1mKQU7+tRWizwgeCThfc3dEGgA14Q20qfImnn4fOP9FPxqs+CJq8SsAezTT3IiFrKbj SzR7aY++JpjpzLckVQXlyJ3YDO3ysKAYHQ9Sn3GWSSLHJ6v3HVsGuiNgfRtjjQTIvZBhBjqG46MU7 hGq/AwMg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS60P-0003Ue-Ff; Tue, 05 Nov 2019 21:04:49 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS5vj-00067s-Ot for linux-arm-kernel@lists.infradead.org; Tue, 05 Nov 2019 21:00:02 +0000 Received: from e123331-lin.home (lfbn-mar-1-643-104.w90-118.abo.wanadoo.fr [90.118.215.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C48CD21A49; Tue, 5 Nov 2019 20:59:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572987599; bh=6zEqcl0uA0oeFaXVbsuKGtvSe8FW3La586gN3/iaXvY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SipvUo3BawGrfbkZwqeGWvBskzretWa/YSBfQSvNl49BpEjynROjsOsvCaFYPzpBY L6HHNbgqrZCNXeETGwI1oSee3m2/6Pj9kFA8xzaWSzGnNSm9vzc5H3+k+1tcdEU3ze YEsXRtPnoZfM5slZL2Kv04XpW3B8WpFcxoNVrFcA= From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Subject: [PATCH for-stable-v4.4 21/53] ARM: bugs: prepare processor bug infrastructure Date: Tue, 5 Nov 2019 21:58:14 +0100 Message-Id: <20191105205846.1394-22-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191105205846.1394-1-ardb@kernel.org> References: <20191105205846.1394-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191105_125959_835255_569F53C2 X-CRM114-Status: GOOD ( 12.99 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Florian Fainelli , Greg Kroah-Hartman , Tony Lindgren , Catalin Marinas , Russell King , "David A . Long" , Marc Zyngier , Will Deacon , Ard Biesheuvel MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Russell King Commit a5b9177f69329314721aa7022b7e69dab23fa1f0 upstream. Prepare the processor bug infrastructure so that it can be expanded to check for per-processor bugs. Signed-off-by: Russell King Reviewed-by: Florian Fainelli Boot-tested-by: Tony Lindgren Reviewed-by: Tony Lindgren Acked-by: Marc Zyngier Signed-off-by: David A. Long Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ard Biesheuvel --- arch/arm/include/asm/bugs.h | 4 ++-- arch/arm/kernel/Makefile | 1 + arch/arm/kernel/bugs.c | 9 +++++++++ 3 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/bugs.h b/arch/arm/include/asm/bugs.h index a97f1ea708d1..ed122d294f3f 100644 --- a/arch/arm/include/asm/bugs.h +++ b/arch/arm/include/asm/bugs.h @@ -10,10 +10,10 @@ #ifndef __ASM_BUGS_H #define __ASM_BUGS_H -#ifdef CONFIG_MMU extern void check_writebuffer_bugs(void); -#define check_bugs() check_writebuffer_bugs() +#ifdef CONFIG_MMU +extern void check_bugs(void); #else #define check_bugs() do { } while (0) #endif diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index 82bdac0f2804..649bc3300c93 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -30,6 +30,7 @@ else obj-y += entry-armv.o endif +obj-$(CONFIG_MMU) += bugs.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_ISA_DMA_API) += dma.o obj-$(CONFIG_FIQ) += fiq.o fiqasm.o diff --git a/arch/arm/kernel/bugs.c b/arch/arm/kernel/bugs.c new file mode 100644 index 000000000000..88024028bb70 --- /dev/null +++ b/arch/arm/kernel/bugs.c @@ -0,0 +1,9 @@ +// SPDX-Identifier: GPL-2.0 +#include +#include +#include + +void __init check_bugs(void) +{ + check_writebuffer_bugs(); +}