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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5254DC10F14 for ; Thu, 10 Oct 2019 18:46:27 +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 20FA5206B6 for ; Thu, 10 Oct 2019 18:46:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="niMHCcIc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 20FA5206B6 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+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: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=NC7c1jTboBte6cDcq8sPURDd5vksa60jm+DEN/gRqJg=; b=niMHCcIczd9PPRsjXAxn/5Rrcv rzKW0ORYRQGtVA8YZ5sewCYL0/lYLbekO9ZQQrOw6kKRKTX3zbvespDUY6qlEl7cd/hVjJvp8jGdb RHYv4kODTN9bNr2UHHrHV59yvp+qCzv6HmF7b3mDWsN763FSh9k42l7oEEntocW19tgYAjsFs4rBn EPYXJdetSKdmLUL+hamZ8h2ffslfK0ixWWgcuA8y2bpW/tZXGFq7lga0F2sypZc/UgGNh+Jsmj726 8Hu0qL1reADlf+IaUkIITRs/qxq9EhlM8BBmA6iHP+hN0qBG/8rkKu1rfsaE9ZS486WEZo7zj+Vqq Uzg2rcvQ==; 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 1iIdSE-0006nw-9E; Thu, 10 Oct 2019 18:46:26 +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 1iIdRW-00067j-Ff for linux-arm-kernel@lists.infradead.org; Thu, 10 Oct 2019 18:45:44 +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 71A3128; Thu, 10 Oct 2019 11:45:41 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C1A123F703; Thu, 10 Oct 2019 11:45:38 -0700 (PDT) From: Dave Martin To: linux-kernel@vger.kernel.org Subject: [PATCH v2 04/12] arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1 Date: Thu, 10 Oct 2019 19:44:32 +0100 Message-Id: <1570733080-21015-5-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1570733080-21015-1-git-send-email-Dave.Martin@arm.com> References: <1570733080-21015-1-git-send-email-Dave.Martin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191010_114542_618881_DA6C8F7D X-CRM114-Status: GOOD ( 12.59 ) 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: Paul Elliott , Peter Zijlstra , Catalin Marinas , Will Deacon , Yu-cheng Yu , Amit Kachhap , Vincenzo Frascino , linux-arch@vger.kernel.org, Eugene Syromiatnikov , Szabolcs Nagy , "H.J. Lu" , Andrew Jones , Kees Cook , Arnd Bergmann , Jann Horn , Richard Henderson , =?UTF-8?q?Kristina=20Mart=C5=A1enko?= , Mark Brown , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Florian Weimer , Sudakshina Das MIME-Version: 1.0 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 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 --- Note to maintainers: * This patch has been racing with various other attempts to fix the same documentation in the meantime. Since this patch only fixes the documenting for pre-existing features, it can safely be dropped if appropriate. The _new_ documentation relating to BTI feature reporting is in a subsequent patch, and needs to be retained. --- 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 2955287..b86828f 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 | @@ -210,7 +217,7 @@ 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 | @@ -218,7 +225,7 @@ 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 | -- 2.1.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel