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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2012EB64D8 for ; Wed, 14 Jun 2023 15:27:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237199AbjFNP1d (ORCPT ); Wed, 14 Jun 2023 11:27:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245099AbjFNP10 (ORCPT ); Wed, 14 Jun 2023 11:27:26 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3A7DC3; Wed, 14 Jun 2023 08:27:25 -0700 (PDT) Received: from mercury (dyndsl-091-248-213-214.ewe-ip-backbone.de [91.248.213.214]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: sre) by madras.collabora.co.uk (Postfix) with ESMTPSA id 43DED6606F4F; Wed, 14 Jun 2023 16:27:24 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1686756444; bh=GZ8Sf33JazmMkxEGjgJU5duB85Yb8pBBWqBGBBUZx94=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RaegutL4WL1b4gvUQkqIFcNre+qhwMQ6dYMcSeoDrwpk72yLm3RDAJR8IspFh0KtL mYkkP3sFKEzhd3NuSc8cmgyEad5uXGDqg/6qjPGATCJ5Sjeneo69n8ET9HhtFSm1tS ZBOEAjj0w8rARWE1/u0Q27E7pWDWi73CaRVM4zhrmHJm+cPqkqu6veTins9FaEqetE FPZMcNqPGCq612IIKU4UQm2fSXzEf9DgHGWl11E83BSyfbaZE/P/5ICfrDLzn/MSFh n9FofDXAfTomszqDsWqPcnIKrZwsNvgZhpp72DJhUVx2jnJt+yNWuIKdOpS2/YI/ZF uKyQ8sKw3U2zA== Received: by mercury (Postfix, from userid 1000) id 604561060A61; Wed, 14 Jun 2023 17:27:21 +0200 (CEST) Date: Wed, 14 Jun 2023 17:27:21 +0200 From: Sebastian Reichel To: Sascha Hauer Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org Subject: Re: [PATCH v5 00/25] Add perf support to the rockchip-dfi driver Message-ID: <20230614152721.eep5ip726ump2kpe@mercury.elektranox.org> References: <20230524083153.2046084-1-s.hauer@pengutronix.de> <20230614134034.3p3p75a3jophi2eu@mercury.elektranox.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="zyjzybui6e7gqjye" Content-Disposition: inline In-Reply-To: <20230614134034.3p3p75a3jophi2eu@mercury.elektranox.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --zyjzybui6e7gqjye Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Wed, Jun 14, 2023 at 03:40:34PM +0200, Sebastian Reichel wrote: > I tested the series on RK3588 EVB1. The read/write byts looks > sensible. Sometimes cycles reads unrealistic values, though: >=20 > 18446744070475110400 rockchip_ddr/cycles/ I have seen this going off a few times with and without memory pressure. If it's way off, it always seems to follow the same pattern: The upper 32 bits are 0xffffffff instead of 0x00000000 with the lower 32 bits containing sensible data. -- Sebastian --zyjzybui6e7gqjye Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAmSJ3FQACgkQ2O7X88g7 +pp2JA//SCpiw2slHYpTU8N4bPFSUT9ITBtddLnikjBs/LlWM9rDQV08dDBqnR1o Eyyn11zHNQ49a145uEWthUM/j04gSR7n698ALsIJiCwEhglNB9maSJGFC2KjUISi XqPkAcMfTXFuxWiRjuxGdcByP1XGbt2PUEmOL3ttATV4fsa+CBOqSRRCRFubufQ0 AVaDyNljEyMtvan5cgEq29iWXLL5LvQD15XZVWYiqhq0I8TTvZ/meQSTY7n2566G WuYHXFWBnUQ/UhfKcTm1EHp+E43xPjaW+OTocMcijL4CqKXdj53rITNTZl0yBb5r lvDlndiH2c9tgrxWtxGaEisdoeUEkc15N/OXubemWTXAnNF9Er5cImnP6H2zgc3r IZNgiZnxcbqVcbXRsMvv6G9x2rgR1qrT7a8gfW+6XeKiTXMxhgfCyX12n++IMUWf pfBezTJ9p4wa4sUW7xSNd7HL0AU0Lmb9LVDD1rFuNOEYKgeaOW+n5x3PIfjcqjgJ 1+HCmYklpAAdki85cEUZEuyf7D7C84j27uUUuOnlO670JpxQKvYndt022J69zZB0 UO3iDHemOx8Vwg8gkIcmCwsm7gopQOfhD4DjmOYQ6JddnuwwXlnOXRTLnBm9pzBw hNPrd7KmbNw1nqhTDXc7OIT7iwOVmvJm5lj1GJ1m0gCnA8ZhVjg= =xSXO -----END PGP SIGNATURE----- --zyjzybui6e7gqjye--