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=-3.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED 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 99850C433E2 for ; Wed, 16 Sep 2020 17:47:32 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 1B2FC206B6 for ; Wed, 16 Sep 2020 17:47:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1B2FC206B6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id A650C87430; Wed, 16 Sep 2020 17:47:31 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7HCZMv72ZpyN; Wed, 16 Sep 2020 17:47:27 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id EA4C58741A; Wed, 16 Sep 2020 17:47:27 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id E3209C0864; Wed, 16 Sep 2020 17:47:27 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5D7F6C0051 for ; Wed, 16 Sep 2020 17:04:18 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 219972BC43 for ; Wed, 16 Sep 2020 17:04:18 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id V-sJmv6gXVUP for ; Wed, 16 Sep 2020 17:04:17 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by silver.osuosl.org (Postfix) with ESMTPS id BEC1E275A5 for ; Wed, 16 Sep 2020 17:04:16 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: alyssa) with ESMTPSA id 981522711D2 Date: Wed, 16 Sep 2020 13:04:09 -0400 From: Alyssa Rosenzweig To: Neil Armstrong Subject: Re: [PATCH 0/3] drm: panfrost: Coherency support Message-ID: <20200916170409.GA2543@kevin> References: MIME-Version: 1.0 In-Reply-To: X-Mailman-Approved-At: Wed, 16 Sep 2020 17:47:26 +0000 Cc: robh@kernel.org, tomeu.vizoso@collabora.com, Robin Murphy , dri-devel@lists.freedesktop.org, steven.price@arm.com, iommu@lists.linux-foundation.org, khilman@baylibre.com, linux-amlogic@lists.infradead.org, will@kernel.org, linux-arm-kernel@lists.infradead.org, jbrunet@baylibre.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2658711551411326885==" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" --===============2658711551411326885== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="EVF5PPMfhYS0aIcm" Content-Disposition: inline --EVF5PPMfhYS0aIcm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > So I get a performance regression with the dma-coherent approach, even if it's > clearly the cleaner. That's bizarre -- this should really be the faster of the two. --EVF5PPMfhYS0aIcm Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEQ17gm7CvANAdqvY4/v5QWgr1WA0FAl9iRX8ACgkQ/v5QWgr1 WA0Fsg//Qy1ZMY68LHnG0Sv9WWMIPx28MJoZmed9VIQ5jMu951cNntKyVqqUVGJf GAHSFPbAEPpbocf35MhRwm12dLx4SyomgpwavHF0Lkx9e/XkgCJz5n2yZBNvHikV UP/R31ETfND5V4oRfLdHodJrNNyVabFk5PsWBVbgefRCxysLK+Pq1uXvsWeY5cUW Nond4DUoQ48S+AMXUCaLFCjfNcqq3Jt1Juh1x2fW61pGdvCWoPHV9u2niQ3ylTiz l6v105u/j4SvHALH2eW+mxfxNSBwS2kIkMTZdPzD8bTnh8N3DBokcwRpPw2LSR/O UNPLxSfiTQVrvj5TX/VXBvK2B8eFph0lCMvtoUSt88WZ5xo+RZBkMZdXkOaXgMdt eyhPLCXOWkLcyA/qPeElvCmRsJ3vrT1XSrfqZkq3Hx3XAedaFYEw2mXGVWRo8XAI 27zYwkyzvWweUR+QkC8HK4fpiXs8/x+rF/cGT3zfDU0VPpCOPLw8ZII/lGGKNazi /0pocVSw+1IPg4OCdC26zjP9a1Drc5b5YIeLnnxwtb5+KcowkWG0sa4H5+CZ7zls E4P2exzZCOeRAeqYZMzUWawGzkUCWKVnoxwYrWyyvbO/0eoreJ3kv50S+754JUOw tAyaRpfGYLblm2cmC2xpckAtg1HekYaFIIphP1SZIm+iZTYv9+0= =ZO+i -----END PGP SIGNATURE----- --EVF5PPMfhYS0aIcm-- --===============2658711551411326885== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu --===============2658711551411326885==--