From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933021AbcFOOFL (ORCPT ); Wed, 15 Jun 2016 10:05:11 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:39670 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932432AbcFOOFI (ORCPT ); Wed, 15 Jun 2016 10:05:08 -0400 Date: Wed, 15 Jun 2016 15:04:47 +0100 From: Mark Brown To: Juri Lelli Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, peterz@infradead.org, vincent.guittot@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, linux@arm.linux.org.uk, sudeep.holla@arm.com, lorenzo.pieralisi@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, morten.rasmussen@arm.com, dietmar.eggemann@arm.com, sgurrappadi@nvidia.com, Pawel Moll , Ian Campbell , Kumar Gala , Maxime Ripard , Olof Johansson , Gregory CLEMENT , Paul Walmsley , Linus Walleij , Chen-Yu Tsai , Thomas Petazzoni Message-ID: <20160615140447.GB2282@sirena.org.uk> References: <1465985877-18271-1-git-send-email-juri.lelli@arm.com> <1465985877-18271-2-git-send-email-juri.lelli@arm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hTyD2MSx3HZlTIuF" Content-Disposition: inline In-Reply-To: <1465985877-18271-2-git-send-email-juri.lelli@arm.com> X-Cookie: Your present plans will be successful. User-Agent: Mutt/1.6.0 (2016-04-01) X-SA-Exim-Connect-IP: 81.128.185.34 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH v5 1/8] Documentation: arm: define DT cpu capacity-dmips-mhz bindings X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --hTyD2MSx3HZlTIuF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Jun 15, 2016 at 11:17:50AM +0100, Juri Lelli wrote: > +CPU capacities are obtained by running a suitable benchmark. This binding makes > +no aspersions on the validity or suitability of any particular benchmark, the > +final capacity should, however, be: Makes no guarantees. An aspersion is an insult! > +CPU capacities are obtained by running the Dhrystone benchmark on each CPU at > +max frequency. The obtained DMIPS score is then divided by the frequency (in > +MHz) at which the benchmark has been run, so that DMIPS/MHz are obtained. > +Such values are then normalized w.r.t. the highest score obtained in the > +system. Perhaps worth mentioning that caches and so on should be enabled (based on previous experience with people doing bringup)? --hTyD2MSx3HZlTIuF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJXYWB+AAoJECTWi3JdVIfQ0n0H+QFFGQlAwUqW5r7MeENtno09 xyaKc04bxsEYYXlC1htnknLdPtY13kJ6czFAQ8RHvdQPNfzwG3CcEXaFUiLeIjLP hT2zdt9eUb+4bUit40dcULVK1UZH9p70s8yR5RmOl2e4Nr/4qebp33ccKwB2po6g PwZSlbKleMYGSwnGFa0zvfQ/EetzrV+wRrXqPx7JA8I77w5PIQ1RA2xUbUT9ShMx pXl8vbywOSC1vDwdP/Yzcd81z2NPvspJM6mveWJ562X/wLqtFAfj5JuN7fRKKOpK iamibu+l1/ALV0rbF8Zhu4gxs4/6o6m+9g5vdtmav3zZvo8FIwNMw6HuA5mcMx4= =R+jA -----END PGP SIGNATURE----- --hTyD2MSx3HZlTIuF--