From patchwork Fri Apr 24 16:38:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Morse X-Patchwork-Id: 11508561 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 2ABAF912 for ; Fri, 24 Apr 2020 16:38:26 +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 096B020781 for ; Fri, 24 Apr 2020 16:38:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="H0KpvdrU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 096B020781 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com 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: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=DfQqNLP+6LkQmrxZgZNRm5UJYJHKYnPN/uH0EqmuK+0=; b=H0KpvdrU2xuMRL ZMdx81Cpd5+5VphxXJO0w71T2tnlWOU3fP4mkmCaclET+fq0H9Fk3QS2ieisMwfZhvxjXhpuN2WwJ FGt/NKtMec0F2PeEfOkpcZXrwaiR4pJyYnpDkTfZI7XbI+NVeSS8c9WrdOzjzuvvjNvk09skRoHBX yDCVzlDm2OuPIdmf4EZEsAbjvXj6c+MDkmz5VchjovVwMj37Bpa06+h4MMZIvXsrgmhOAbY5bfnyC EuVZPfysQ4PysbkN/ozwD/htUZ+q1HfDY8nmZFzBLYnl4b6r/XZaleD6dU31JCmN3sJjStRFF8C8V 9hQh54IRzJee7q9svu7g==; 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 1jS1LI-0007jN-TG; Fri, 24 Apr 2020 16:38:20 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jS1LG-0007iM-Dy for linux-arm-kernel@lists.infradead.org; Fri, 24 Apr 2020 16:38:19 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0955B31B; Fri, 24 Apr 2020 09:38:16 -0700 (PDT) Received: from melchizedek.cambridge.arm.com (melchizedek.cambridge.arm.com [10.1.196.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8E85B3F68F; Fri, 24 Apr 2020 09:38:15 -0700 (PDT) From: James Morse To: stable@vger.kernel.org Subject: [stable:PATCH 0/4 v5.4] arm64: Workaround Neoverse-N1 #1542419 Date: Fri, 24 Apr 2020 17:38:01 +0100 Message-Id: <20200424163805.4087-1-james.morse@arm.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200424_093818_511233_DFE6A9C3 X-CRM114-Status: UNSURE ( 8.08 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 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 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: linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This series backports the Neoverse-N1 #1542419 erratum workaround to v5.4.35. The series was originally merged in v5.5. These patches handle user-space. The kernel change was: commit dd8a1f134884 ("arm64: ftrace: Ensure synchronisation in PLT setup for Neoverse-N1 #1542419"), which was taken as a fix for v5.4. Thanks, James Catalin Marinas (1): arm64: Silence clang warning on mismatched value/register sizes James Morse (3): arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419 arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419 arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 16 +++++++++++++ arch/arm64/include/asm/cache.h | 3 ++- arch/arm64/include/asm/cpucaps.h | 3 ++- arch/arm64/kernel/cpu_errata.c | 32 +++++++++++++++++++++++++- arch/arm64/kernel/sys_compat.c | 11 +++++++++ arch/arm64/kernel/traps.c | 9 ++++++++ 7 files changed, 73 insertions(+), 3 deletions(-)