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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id AD11DC433EF for ; Fri, 10 Dec 2021 17:33:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9qmApfyHgo+d/0CG6bOXbNd6amRpQOkhPkhqWCpYVYU=; b=XdPhnP1H/Dc9P1 winWf53Sp3PhNttWmlSvT5Vk+2mQzNxMAp48HXLacGkJ2HLB6LsUS6gAhDTXkwaPPGTR8hKEOgvNK h1exs5wB8TfXC0cdXjYlDdZGuC44Y2cXyL3NgkkPxmi1SDC0xLzuHoIw8YZw+1u9tRBy53Qv8sGoQ t7EXA3suWAHCFOT34d0M/4+vd9tHS/wQ8PQa2+MwepC3G6jONRO4O6be7UfbTryum9lR10KxHO7t5 ODVHl8s0XsRXFGrhngpWeA0TR4oEipN1/pmLadqzn/Ui6IHLUFFCSeiL+X7dvc42W3WgIKQqyal2z HfgH/8xiYfpRvWlGpReA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mvjkU-002rmN-Bz; Fri, 10 Dec 2021 17:31:58 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mvjkL-002rjd-3o for linux-arm-kernel@lists.infradead.org; Fri, 10 Dec 2021 17:31:50 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F3218B8291B; Fri, 10 Dec 2021 17:31:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ABE00C341C5; Fri, 10 Dec 2021 17:31:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1639157505; bh=LSVwpc/cer3+qkSsqvB/BfoeiV13BSJBm5w1wpDGAgw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=oNX6ol7DBjzahegA3Jmnpc4jCcicDYMz1p6kt4aQvws70MrH75Dr7Yvd5iW07fpJ3 Oqh8eYQUh00PLRIHIMa9fTbosxX/mc/B8WE46xWU5Qqr8zlLMm9yR8grGTes8BSse5 kGJ7i+YfbwsnmO+BrfjdxIcH0DlGEq3+5llmQDfQVv/24aUyDUmQpfecU/uaItqUFn vi51GA0iUGcW1KVU7Ocr7Vw5VpCmOfZaw5QHz8BiY9r2z4DXrm/EjPp2DQm1LqMFjn tAUPVlo8KlyJz2XDzlkZRQ70U9BxpNJ6omaOvNfrmmKajb3C1oPqZXY2m6zqEhgAET XAqxgLeyOdCFQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=why.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mvjkF-00BJnh-Iw; Fri, 10 Dec 2021 17:31:43 +0000 Date: Fri, 10 Dec 2021 17:31:43 +0000 Message-ID: <87tufgjri8.wl-maz@kernel.org> From: Marc Zyngier To: Joey Gouly Cc: , , , , , , , , Subject: Re: [PATCH v3 0/3] arm64: Add two HWCAPs for Arm v8.7 FP behaviour In-Reply-To: <20211210165432.8106-1-joey.gouly@arm.com> References: <20211210165432.8106-1-joey.gouly@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: joey.gouly@arm.com, linux-arm-kernel@lists.infradead.org, nd@arm.com, alexandru.elisei@arm.com, catalin.marinas@arm.com, corbet@lwn.net, james.morse@arm.com, reijiw@google.com, suzuki.poulose@arm.com, will@kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211210_093149_347465_7B86FBB4 X-CRM114-Status: GOOD ( 15.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 10 Dec 2021 16:54:29 +0000, Joey Gouly wrote: > > This series adds new HWCAPs for two Arm v8.7 features: > - FEAT_AFP: Alternate floating-point behavior for specific > floating point instructions. > - FEAT_RPRES: Increased precision of Reciprocal Estimate and > Reciprocal Square Root Estimate from an 8-bit mantissa to a > 12-bit mantissa. > > These features can be enabled by userspace by setting some new bits > in FPCR. These new bits are FPCR.{NEP, AH, FIZ}. Since these must be > explicitly enabled by userspace, this should not affect existing > applications. For the series: Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel