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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 9CF51C33CA3 for ; Fri, 10 Jan 2020 14:09:03 +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 7439B20721 for ; Fri, 10 Jan 2020 14:09:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="BCSNoIe2"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="Dt9bZeXw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7439B20721 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lunn.ch 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: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=q/avcuVKuPnetyfNaDW295up9gln3Z015jlr+UCXZeQ=; b=BCSNoIe2N4Tdix X263Ob5P+pENQ4CvJGoUVrJwI+x4M9RF6cHp3MBboDZtPp9Qx7PCowZS2f1BlpTTlDTQ1MOk0Vx7w pw2WyJjIcKpyj0PyZHt0jkCnGX+HmZx7oNafRytV8GmdhqIROUASpCBki7AGPD4XOQrlHOgYwcjBE RPdIALEQV9HtSajQteU7y5UgY+102adev2mPl/Oy16aTm9uUy5fmjGt8mBMogUsWU0KfCerQdVIJW spmsKEY5lzJ+cA4zFket38wYaaW54SJVkh4o6oH1fltyXjT5s2jxpl8xXmQ28s8vA5cROP3x7qCKn 9h2hrKzXm5gmaYi/XfwA==; 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 1ipuyC-0006mk-UI; Fri, 10 Jan 2020 14:09:00 +0000 Received: from vps0.lunn.ch ([185.16.172.187]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ipuyA-0006mO-8T for linux-arm-kernel@lists.infradead.org; Fri, 10 Jan 2020 14:08:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=lSOHgxO9xGTW5vCvNg94uyQaSJjUVatF+1rMZ+Ag+x0=; b=Dt9bZeXw47aG1JE5UIOyOiMZUx kbqejHoDOftUS3Cf1nHos/uaQgedu7iOkF1mMW0geussbppQHn4awtXlK5K/Mne83cpC6XQELBTSM 2N1zuXtcKTblIaV5ic4F0BuAkn6gIoYwlGU2XdS8fJuG7/5RB5rgBgmMXBcSiZI7hhLc=; Received: from andrew by vps0.lunn.ch with local (Exim 4.93) (envelope-from ) id 1ipuy4-0007ME-1M; Fri, 10 Jan 2020 15:08:52 +0100 Date: Fri, 10 Jan 2020 15:08:52 +0100 From: Andrew Lunn To: Andre Przywara Subject: Re: [PATCH 12/14] net: axienet: Autodetect 64-bit DMA capability Message-ID: <20200110140852.GF19739@lunn.ch> References: <20200110115415.75683-1-andre.przywara@arm.com> <20200110115415.75683-13-andre.przywara@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200110115415.75683-13-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200110_060858_304037_337D938C X-CRM114-Status: UNSURE ( 5.99 ) X-CRM114-Notice: Please train this message. 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: netdev@vger.kernel.org, Radhey Shyam Pandey , Michal Simek , linux-kernel@vger.kernel.org, Robert Hancock , "David S . Miller" , 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 > To autodetect this configuration, at probe time we write all 1's to such > an MSB register, and see if any bits stick. So there is no register you can read containing the IP version? Andrew _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 CA57AC282DD for ; Fri, 10 Jan 2020 14:09:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AB1C20838 for ; Fri, 10 Jan 2020 14:09:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="Dt9bZeXw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728100AbgAJOJB (ORCPT ); Fri, 10 Jan 2020 09:09:01 -0500 Received: from vps0.lunn.ch ([185.16.172.187]:59536 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727358AbgAJOJB (ORCPT ); Fri, 10 Jan 2020 09:09:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=lSOHgxO9xGTW5vCvNg94uyQaSJjUVatF+1rMZ+Ag+x0=; b=Dt9bZeXw47aG1JE5UIOyOiMZUx kbqejHoDOftUS3Cf1nHos/uaQgedu7iOkF1mMW0geussbppQHn4awtXlK5K/Mne83cpC6XQELBTSM 2N1zuXtcKTblIaV5ic4F0BuAkn6gIoYwlGU2XdS8fJuG7/5RB5rgBgmMXBcSiZI7hhLc=; Received: from andrew by vps0.lunn.ch with local (Exim 4.93) (envelope-from ) id 1ipuy4-0007ME-1M; Fri, 10 Jan 2020 15:08:52 +0100 Date: Fri, 10 Jan 2020 15:08:52 +0100 From: Andrew Lunn To: Andre Przywara Cc: "David S . Miller" , Radhey Shyam Pandey , Michal Simek , Robert Hancock , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 12/14] net: axienet: Autodetect 64-bit DMA capability Message-ID: <20200110140852.GF19739@lunn.ch> References: <20200110115415.75683-1-andre.przywara@arm.com> <20200110115415.75683-13-andre.przywara@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200110115415.75683-13-andre.przywara@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > To autodetect this configuration, at probe time we write all 1's to such > an MSB register, and see if any bits stick. So there is no register you can read containing the IP version? Andrew