From patchwork Fri Nov 1 14:32:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 11223303 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 69DF71599 for ; Fri, 1 Nov 2019 14:32:52 +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 02CF520862 for ; Fri, 1 Nov 2019 14:32:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="l2HjNmZU"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="ry9apcOW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 02CF520862 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Subject:To:From :Date: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=qYG7m9saJKIuzr04qtpXlVEbwatZLm16WJFb1VqORwY=; b=l2HjNmZUcaKAGl qLAb/A+LnyOjYrX2lwU6DRzU7PskCL2bUyU1ngrv+HBJXTjrGCv+T+rm/CBPzp1ewgaTs3QaYPpB9 M3VjXRvwrbQ6Bq9Mg1N/UtOZ/FGwfIXPNyYfp5PNU+ScLKfFwqcAOCjsU91/voqoASv0IIvckzOY9 WpToqY6fza+B24VaXRpS5X6DF+DIj6jDHPLwtR7bM66jnWUDPnTJuHAuyQFoVs8qZOF660bZm7Jch JVHgrGV7StDomBkh8tfu+biz/Zn6gAQxa15VYRqJKpk/8v21jU2Mx//rH6aXvaooxCzL9c+JJvYr0 JwcfSLndIu2Zh+BiGhBg==; 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 1iQXys-0006c7-TH; Fri, 01 Nov 2019 14:32:50 +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 1iQXyq-0006VU-QH for linux-arm-kernel@lists.infradead.org; Fri, 01 Nov 2019 14:32:50 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7153120862; Fri, 1 Nov 2019 14:32:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572618765; bh=awMAnw9Qq2gBQEeEgcYC7CS6pz44jp0V0kf6PkvwF+c=; h=Date:From:To:Cc:Subject:From; b=ry9apcOW3hjwZVKiKAmkcHGbORCoYyIuehNaDmc/LW5REQPkKsJObcxnWHdyYbg/f vt2KQcCJU/bGqsctJdzBipw1NzQ56ctc2kuHWYdehk12LpkkBK/W4aqMCFwA1witTG FjGBtkfEZE2I/sGiS4Uzui1t4iN7dkfwLL741jqc= Date: Fri, 1 Nov 2019 14:32:40 +0000 From: Will Deacon To: torvalds@linux-foundation.org Subject: [GIT PULL] arm64: Fixes for -rc6 Message-ID: <20191101143240.GA3287@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191101_073248_877605_AA98FD5B X-CRM114-Status: GOOD ( 11.82 ) 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_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 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 -0.0 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: peterz@infradead.org, catalin.marinas@arm.com, Linux Kernel Mailing List , Linux ARM Kernel Mailing List Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hi Linus, Please pull these arm64 fixes for -rc6. They're almost exclusively related to CPU errata in CPUs from Broadcom and Qualcomm where the workarounds were either not being enabled when they should have been or enabled when they shouldn't have been. The only "interesting" fix is ensuring that writeable, shared mappings are initially mapped as clean since we inadvertently broke the logic back in v4.14 and then noticed the problem via code inspection the other day. The only critical issue we have outstanding is a sporadic NULL dereference in the scheduler, which doesn't appear to be arm64-specific and PeterZ is tearing his hair out over it at the moment. Cheers, Will --->8 The following changes since commit 777d062e5bee0e3c0751cdcbce116a76ee2310ec: Merge branch 'errata/tx2-219' into for-next/fixes (2019-10-17 13:42:42 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-fixes for you to fetch changes up to 1cf45b8fdbb87040e1d1bd793891089f4678aa41: arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core (2019-11-01 10:47:37 +0000) ---------------------------------------------------------------- arm64 fixes for -rc6 - Enable CPU errata workarounds for Broadcom Brahma-B53 - Enable CPU errata workarounds for Qualcomm Hydra/Kryo CPUs - Fix initial dirty status of writeable, shared mappings ---------------------------------------------------------------- Bjorn Andersson (2): arm64: cpufeature: Enable Qualcomm Falkor/Kryo errata 1003 arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo Catalin Marinas (1): arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default Doug Berger (1): arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core Florian Fainelli (2): arm64: Brahma-B53 is SSB and spectre v2 safe arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core Documentation/arm64/silicon-errata.rst | 7 +++- arch/arm64/include/asm/cputype.h | 2 ++ arch/arm64/include/asm/pgtable-prot.h | 15 +++++---- arch/arm64/kernel/cpu_errata.c | 59 +++++++++++++++++++++++++++------- 4 files changed, 64 insertions(+), 19 deletions(-)