From patchwork Thu Oct 10 08:36:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 175730 Delivered-To: patch@linaro.org Received: by 2002:a92:7e96:0:0:0:0:0 with SMTP id q22csp1984579ill; Thu, 10 Oct 2019 01:49:47 -0700 (PDT) X-Google-Smtp-Source: APXvYqzr4Fmf9Rk9coKDqdDgLnb5xxgSNPwjCqljCj6JJVdv3GQufARam8ZbArXZtVPcYSULVUHJ X-Received: by 2002:a17:906:cc85:: with SMTP id oq5mr6779707ejb.81.1570697387385; Thu, 10 Oct 2019 01:49:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1570697387; cv=none; d=google.com; s=arc-20160816; b=ZLudAij//smRFeak4e2H8QEOTW7f+9mTL4bcfLGReOb+tjGv866a+41Yb02wMrxN4d wUagBDyu6UaOaw30yLy9vr+EuroFuhYKVDc5pDzCkjO/1PncwptkvQAc1n6DReyePBss 6frxqxVowrOQxrKEy+9JP/dlbgwLp1IvhMAFhXhOgdeJcdDrjBGZLQ9mWZIjiI5n22+T 452DcvfqdKIa19qypQ+HLoIxM8rD9arpkbxi1R/gZUQ4PZBl0ClbU8W71Nj0NcYgxiD1 xIBbo676pPJyL3wto+/48gcixy444Juk2vvP2n2Fl1KjpcSiv41e04F40uf+2HuO+jEx y/JQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=sWFsj5wH012qkm5cwpSYslZL4bz4P7uihnly/h2uKnI=; b=Tah2nDweXqDhf4R2HR44Yqslpix/x+kqSs0u9vubxmoPNGCJgsgyQ62fZI2QH8O1aw LcOsCfla/uwh1zjoiCIqkvj1p3UVZAdbociatT1ETGuDR8lER01aVzzUnap4qZHNjyfI iFF0QYL6buZwXuw+veFFTkkE3WrsKlBvppZWrwgmL/eueaBXgQYJc4YlZpa7SaDXAENI QvgTy+nd65ZvpwOtMs5HROA/QWUWLApILdh/JbW97lmosXDAnKO0OGghyrIzsJIqem5K jUvjRJDME/KsPJzlUBY/HflhFaa7tCJ6dfoSNX8prJJxbijjmisC4nEmth23fMO4c74/ dhqw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=TXwnPRpf; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id m24si2573831ejx.286.2019.10.10.01.49.47; Thu, 10 Oct 2019 01:49:47 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=TXwnPRpf; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389354AbfJJItp (ORCPT + 26 others); Thu, 10 Oct 2019 04:49:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:56342 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389839AbfJJItj (ORCPT ); Thu, 10 Oct 2019 04:49:39 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 2440B218AC; Thu, 10 Oct 2019 08:49:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570697378; bh=hjClmTpggnb7L6mcq55UzXAa9IIEoGjT4X6BTvjO7nk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TXwnPRpfDTRsA+RaSjJASFx8VUh0CkIUN1GC5D+4CafIAHuTQcqy4qWTFa8SOqPjl B9eyopdfhoc0C8zuJtlxG+d8hhcjLTZLPjyNXCEvlnBGYltMttiMY4m47kLpd3lA5Q TsAspoomustQfmxRJtQW1PmRZT6issoTPayUGwQM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Will Deacon , Catalin Marinas , Ard Biesheuvel Subject: [PATCH 4.19 091/114] arm64: docs: Document SSBS HWCAP Date: Thu, 10 Oct 2019 10:36:38 +0200 Message-Id: <20191010083612.904076126@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191010083544.711104709@linuxfoundation.org> References: <20191010083544.711104709@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Will Deacon [ Upstream commit ee91176120bd584aa10c564e7e9fdcaf397190a1 ] We advertise the MRS/MSR instructions for toggling SSBS at EL0 using an HWCAP, so document it along with the others. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas Signed-off-by: Ard Biesheuvel Signed-off-by: Greg Kroah-Hartman --- Documentation/arm64/elf_hwcaps.txt | 4 ++++ 1 file changed, 4 insertions(+) --- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -178,3 +178,7 @@ HWCAP_ILRCPC HWCAP_FLAGM Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001. + +HWCAP_SSBS + + Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.