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=-5.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 D87FEC388F9 for ; Wed, 21 Oct 2020 13:34:59 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 670802080A for ; Wed, 21 Oct 2020 13:34:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="f5W0qeV6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 670802080A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+21ZmlnJDzofOwqUS4D+NSSgndCOYWXPettftJeN97M=; b=f5W0qeV6PvVEoXKZHmahGxIjK urJjVawhCvJIxCSsxQUtA1W0825zy0BNslHIbm4nWO5wm6bGczboHNio9CcsRyGTBb+LMOnj03rso 2ClcbcqLOrpP9dUz4sTpAb6RItuGKZfiBQpQWtaXTHWk55jRBtL2jKoln5a4IXZJuCb0IhTVdNo5+ OVI9xD5N4d6bHREixgt1N7ciaSW4b/b4o2YHka2xP/fgRDymWDa9bKn7Jj0XwYAxbLSby01FE+EMB HRhjqfAGm2vMSieL6WO4fj9rmXmIl8IfoS4/slnBwCsTC4eoIvzyS3l3e+S4lqQQKVFgsJP9gHeIc GoQWSOzjQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kVEFI-0007Oo-Nh; Wed, 21 Oct 2020 13:33:40 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kVEFF-0007Nt-IE for linux-arm-kernel@lists.infradead.org; Wed, 21 Oct 2020 13:33:39 +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 55C5431B; Wed, 21 Oct 2020 06:33:33 -0700 (PDT) Received: from e123083-lin (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D8BD93F66B; Wed, 21 Oct 2020 06:33:31 -0700 (PDT) Date: Wed, 21 Oct 2020 15:33:29 +0200 From: Morten Rasmussen To: Catalin Marinas Subject: Re: [RFC PATCH v2 4/4] arm64: Export id_aar64fpr0 via sysfs Message-ID: <20201021133316.GF8004@e123083-lin> References: <20201021104611.2744565-1-qais.yousef@arm.com> <20201021104611.2744565-5-qais.yousef@arm.com> <63fead90e91e08a1b173792b06995765@kernel.org> <20201021121559.GB3976@gaia> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201021121559.GB3976@gaia> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201021_093337_662905_F8109F7C X-CRM114-Status: GOOD ( 10.25 ) 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-arch@vger.kernel.org, "Peter Zijlstra \(Intel\)" , Marc Zyngier , Linus Torvalds , James Morse , Greg Kroah-Hartman , Will Deacon , Qais Yousef , 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+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Oct 21, 2020 at 01:15:59PM +0100, Catalin Marinas wrote: > one, though not as easy as automatic task placement by the scheduler (my > first preference, followed by the id_* regs and the aarch32 mask, though > not a strong preference for any). Automatic task placement by the scheduler would mean giving up the requirement that the user-space affinity mask must always be honoured. Is that on the table? Killing aarch32 tasks with an empty intersection between the user-space mask and aarch32_mask is not really "automatic" and would require the aarch32 capability to be exposed anyway. Morten _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel