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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 83ADEC433E6 for ; Tue, 1 Sep 2020 10:47:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E0A3206C0 for ; Tue, 1 Sep 2020 10:47:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598957259; bh=eP4q1p11WzN5WKwI6hk4Fgwfr7yOfJDe2qOvgtwwQTA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=cuzzw20lxnqE/MFObL+ReH8fVuggHlLcJMAjyQu/I34teG4pYTmfKEd/4Lt6mBjM3 x3ovi286ZO6gX0lQnd45fmeeftZXegzUvTkgsF+DYKUXCOo8N6cD789EqwO6oLY53j XTjuF8zFkYN0/nx/oOr0/liItYo1/EaEiWpuoI6U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726091AbgIAKri (ORCPT ); Tue, 1 Sep 2020 06:47:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:35490 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725949AbgIAKrd (ORCPT ); Tue, 1 Sep 2020 06:47:33 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0D2D7206C0; Tue, 1 Sep 2020 10:47:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598957252; bh=eP4q1p11WzN5WKwI6hk4Fgwfr7yOfJDe2qOvgtwwQTA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DyUUJmZwGkDbPfnBuDAsMAVRUYPLtj5Kr9BhIzz5qrnoN5aluJHp1WfhbaDgUwm6c Z3Tix+VNtTyCnPR8c0/jHtkHiPZGz+ifRX0ngD1nz8v9uFw5yBNlj4aAPqsnbafdNO nSQIWlFzoicfHMr3WRIxW4mz9XJ0gz+Muv1w3Tf4= Date: Tue, 1 Sep 2020 11:46:52 +0100 From: Mark Brown To: Catalin Marinas Cc: Shuah Khan , Will Deacon , linux-arm-kernel@lists.infradead.org, Vincenzo Frascino , linux-kselftest@vger.kernel.org, Shuah Khan Subject: Re: [PATCH v3 0/5] arm64: vdso: getcpu() support Message-ID: <20200901104652.GA6262@sirena.org.uk> References: <20200819121318.52158-1-broonie@kernel.org> <315d97af-715a-9942-a731-11de2fbbbded@linuxfoundation.org> <20200901092551.GG5561@gaia> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="liOOAslEiF7prFVr" Content-Disposition: inline In-Reply-To: <20200901092551.GG5561@gaia> X-Cookie: Equal bytes for women. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org --liOOAslEiF7prFVr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Sep 01, 2020 at 10:25:52AM +0100, Catalin Marinas wrote: > Thanks Shuah for the ack. We are still pondering whether the merge these > patches as they have some limitations (the per-CPU data structures may > not fit in the sole data vDSO page). They definitely don't fit, I did have some half-written proof of concept patches that I posted that extend this but I was waiting to see if there was any interest in a vDSO getcpu() at all before taking it further. Vincenzo's work on doing the multipage user data that he announced at Plumbers would cover it as well, I hadn't been aware of that. --liOOAslEiF7prFVr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl9OJpwACgkQJNaLcl1U h9AJbwf+NnZaU2qy244rbX9A60dIIsoejhe2IdUqWfUtrupmdl8JK7s0VP5Bxh7z 0UeIlPxLb8xY7OalRrmWDLYEJAK9zVDVmRaUkuwWaKQICNAfkwq/G0aMXndKLBA3 CvQVNZXFuzW39z3W2e/+DZ3pwW2AYQmD6hiLv9Y7TTat+JM4CL73C1xH4R82Wsdo HicEuEvSfuR0mvCcK2/W521PXabdaSPPQZAkhd41FflS3SXUgfTdUsdx4ZV00c36 Or6s+JRdKTQ5CyGb8cfdi4myEKu9kXAn6Lw7FOS5WUYDomiZPi7eTFHX0e6xTUZ5 2dWx1UbtRwR3o4anKiDjinQB2JgHUg== =FH9R -----END PGP SIGNATURE----- --liOOAslEiF7prFVr-- 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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 731DFC433E6 for ; Tue, 1 Sep 2020 10:49:09 +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 3BFAC206C0 for ; Tue, 1 Sep 2020 10:49:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="CGpp85ou"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="DyUUJmZw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3BFAC206C0 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+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-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-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=scJHnFlvrJDjGVjP34LW599JE4fB0qJF/5Z+WEdPUnY=; b=CGpp85ouaZn6FeoxQ/6x6eM/+ qVvDxtLS3p6yiLPqeEnouc3G2mt2jfp9TWzousz1Sqiw36KTTyuNuwAbCIIYphIFIZH5mzd3zA+1z M0189H371DdR8b40b37+gtPZCnCdH6CjguWIzLYpNW98JJbPDx85yEDZ9wQZpfS6NHh8+s64W4W3G k+GHhg4nfe/0NVxhGKr34uu4oGKpiDQAuby9f/MAojK1n0fFozy7ehSrOzYfmo6v5t7h8FsmbiiSf IO8Wk6z5Rj3bxsAaNQte/89GdNGH9urN0swgv2dYssgLBMqRYyocR8sC+ocR99IipF24ingQuMp2I zIEeiH1bA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kD3pB-0001Zr-3u; Tue, 01 Sep 2020 10:47:37 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kD3p8-0001Ym-6g for linux-arm-kernel@lists.infradead.org; Tue, 01 Sep 2020 10:47:34 +0000 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0D2D7206C0; Tue, 1 Sep 2020 10:47:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598957252; bh=eP4q1p11WzN5WKwI6hk4Fgwfr7yOfJDe2qOvgtwwQTA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DyUUJmZwGkDbPfnBuDAsMAVRUYPLtj5Kr9BhIzz5qrnoN5aluJHp1WfhbaDgUwm6c Z3Tix+VNtTyCnPR8c0/jHtkHiPZGz+ifRX0ngD1nz8v9uFw5yBNlj4aAPqsnbafdNO nSQIWlFzoicfHMr3WRIxW4mz9XJ0gz+Muv1w3Tf4= Date: Tue, 1 Sep 2020 11:46:52 +0100 From: Mark Brown To: Catalin Marinas Subject: Re: [PATCH v3 0/5] arm64: vdso: getcpu() support Message-ID: <20200901104652.GA6262@sirena.org.uk> References: <20200819121318.52158-1-broonie@kernel.org> <315d97af-715a-9942-a731-11de2fbbbded@linuxfoundation.org> <20200901092551.GG5561@gaia> MIME-Version: 1.0 In-Reply-To: <20200901092551.GG5561@gaia> X-Cookie: Equal bytes for women. User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200901_064734_333694_D7AA08BA X-CRM114-Status: GOOD ( 14.33 ) 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: Will Deacon , linux-kselftest@vger.kernel.org, Shuah Khan , Vincenzo Frascino , Shuah Khan , linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============2800215088346146845==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============2800215088346146845== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="liOOAslEiF7prFVr" Content-Disposition: inline --liOOAslEiF7prFVr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Sep 01, 2020 at 10:25:52AM +0100, Catalin Marinas wrote: > Thanks Shuah for the ack. We are still pondering whether the merge these > patches as they have some limitations (the per-CPU data structures may > not fit in the sole data vDSO page). They definitely don't fit, I did have some half-written proof of concept patches that I posted that extend this but I was waiting to see if there was any interest in a vDSO getcpu() at all before taking it further. Vincenzo's work on doing the multipage user data that he announced at Plumbers would cover it as well, I hadn't been aware of that. --liOOAslEiF7prFVr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl9OJpwACgkQJNaLcl1U h9AJbwf+NnZaU2qy244rbX9A60dIIsoejhe2IdUqWfUtrupmdl8JK7s0VP5Bxh7z 0UeIlPxLb8xY7OalRrmWDLYEJAK9zVDVmRaUkuwWaKQICNAfkwq/G0aMXndKLBA3 CvQVNZXFuzW39z3W2e/+DZ3pwW2AYQmD6hiLv9Y7TTat+JM4CL73C1xH4R82Wsdo HicEuEvSfuR0mvCcK2/W521PXabdaSPPQZAkhd41FflS3SXUgfTdUsdx4ZV00c36 Or6s+JRdKTQ5CyGb8cfdi4myEKu9kXAn6Lw7FOS5WUYDomiZPi7eTFHX0e6xTUZ5 2dWx1UbtRwR3o4anKiDjinQB2JgHUg== =FH9R -----END PGP SIGNATURE----- --liOOAslEiF7prFVr-- --===============2800215088346146845== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============2800215088346146845==--