From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33760CA9EB6 for ; Wed, 23 Oct 2019 17:52:39 +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 F132D2086D for ; Wed, 23 Oct 2019 17:52:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="h2/brSpL"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="DfuawKcF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F132D2086D 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+infradead-linux-arm-kernel=archiver.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=KJhLeRtVY4fMLozMoFm4N42AlaUleDsk/uUV2M3aPOw=; b=h2/brSpLpZyOVd cDiBsTqzFmjas6Q0cWsUjz7Tt4Py4Fm9UFLyArYN2+o4rLfWunTTUiYpALlCcp2YGnHiF1O+dEu3Y Ge/MlwIKwTpljAgMpyxsPxreg+v83sVzGO+TCiKXHtxCp3/1T3KOWsWNkJeDQXVJp7mnHU0U1lkpS d2qer9sn1Xf294QA73yYRxDKuYCLb54TY9n6t6to2GBQyPLuvalFb/7QvSlwdwkW8DVP3bwvx6H+m Fyrmw6CrETErwr57rNS/BDGdTg9DDBpIReW5WmmFZPTgm5zYJ1C9KUfL1VosFNL6mqrSYYMrJunes IIB/KJmFrCEOVu2o7zeQ==; 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 1iNKoI-0002w5-I9; Wed, 23 Oct 2019 17:52:38 +0000 Received: from heliosphere.sirena.org.uk ([172.104.155.198]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNKoF-0002vb-3j for linux-arm-kernel@lists.infradead.org; Wed, 23 Oct 2019 17:52:36 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=BoPfvIVDdvty4udNwTCkZ4TIG6ntySJWJjMerromyUA=; b=DfuawKcFZ1dZGwihQQNzKyawT 8Bc7WeSrNZ4tmIsOp2fuhAbJ2klwlpZDZBm1hOX3vXpRVOZ+8Y4dN5thgFrivskZXypOfP8cN52ID rILQ4DwBs6IzV+adRvF7hoNOv6doICt1fj9gNuuNzx/QwfDTJm2bLNd8k1ogsgSm+wKoA=; Received: from cpc102320-sgyl38-2-0-cust46.18-2.cable.virginm.net ([82.37.168.47] helo=ypsilon.sirena.org.uk) by heliosphere.sirena.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iNKoC-00012g-Cw; Wed, 23 Oct 2019 17:52:32 +0000 Received: by ypsilon.sirena.org.uk (Postfix, from userid 1000) id 94AB22743021; Wed, 23 Oct 2019 18:52:31 +0100 (BST) From: Mark Brown To: Catalin Marinas , Will Deacon Subject: [PATCH] arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1 Date: Wed, 23 Oct 2019 18:52:22 +0100 Message-Id: <20191023175222.24688-1-broonie@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191023_105235_199364_EEE8B9C5 X-CRM114-Status: GOOD ( 12.39 ) 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 Brown , Dave Martin , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Dave Martin Commit d71be2b6c0e1 ("arm64: cpufeature: Detect SSBS and advertise to userspace") exposes ID_AA64PFR1_EL1 to userspace, but didn't update the documentation to match. Add it. Signed-off-by: Dave Martin Signed-off-by: Mark Brown --- This was posted by Dave as part of the BTI series as it's a dependency for that but it's a standalone fix so reposting it separately so it doesn't get tied up with the review of the wider series - AIUI there are be some other versions of this in flight but whatever gets merged it seems useful for other work so it'd be good to do so. Documentation/arm64/cpu-feature-registers.rst | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst index ffcf4e2c71ef..d6d1efe07d49 100644 --- a/Documentation/arm64/cpu-feature-registers.rst +++ b/Documentation/arm64/cpu-feature-registers.rst @@ -168,8 +168,15 @@ infrastructure: +------------------------------+---------+---------+ - 3) MIDR_EL1 - Main ID Register + 3) ID_AA64PFR1_EL1 - Processor Feature Register 1 + +------------------------------+---------+---------+ + | Name | bits | visible | + +------------------------------+---------+---------+ + | SSBS | [7-4] | y | + +------------------------------+---------+---------+ + + 4) MIDR_EL1 - Main ID Register +------------------------------+---------+---------+ | Name | bits | visible | +------------------------------+---------+---------+ @@ -188,7 +195,7 @@ infrastructure: as available on the CPU where it is fetched and is not a system wide safe value. - 4) ID_AA64ISAR1_EL1 - Instruction set attribute register 1 + 5) ID_AA64ISAR1_EL1 - Instruction set attribute register 1 +------------------------------+---------+---------+ | Name | bits | visible | @@ -214,7 +221,7 @@ infrastructure: | DPB | [3-0] | y | +------------------------------+---------+---------+ - 5) ID_AA64MMFR2_EL1 - Memory model feature register 2 + 6) ID_AA64MMFR2_EL1 - Memory model feature register 2 +------------------------------+---------+---------+ | Name | bits | visible | @@ -222,7 +229,7 @@ infrastructure: | AT | [35-32] | y | +------------------------------+---------+---------+ - 6) ID_AA64ZFR0_EL1 - SVE feature ID register 0 + 7) ID_AA64ZFR0_EL1 - SVE feature ID register 0 +------------------------------+---------+---------+ | Name | bits | visible | -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel