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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 84331CAC5B0 for ; Wed, 24 Sep 2025 11:56:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 43CF810E6ED; Wed, 24 Sep 2025 11:56:32 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NNMGSvN3"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id BA73010E6ED for ; Wed, 24 Sep 2025 11:56:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1758714990; x=1790250990; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=2sGmeqpn3po014o6uH7kf68t1M+fnP5nJ/BSFdHQrvk=; b=NNMGSvN3hRIARUdTkx3+Guq1nmRm4tA5CFyKZXqSQLzFKXmmFMMVLqog oJSK1vHb+4QGnddBcKIrBAOz+HryezrkGUWcN0vvm1kc3fvMykZVSqlUr BcIG1izhBS0NYMvs7LKw41VKzyHYlL+RQQZRfRq5tF4SFpfcqMulbIFe1 t7oI7hIfBE+6tBPSugODoTiPpXiZurVPKo5VBpWqTETSBZ1aUMbQSxldJ yU6aQiFao3hWGQ3mOVjk6PyiYa5KvHCPziu+mvzoicCfGsjv/njUXKP6Y xOdQayFD01VedH27pluC5DAUsXAyjqmc7v+HnPdsYbB5tx4Cy7ddBQEuJ A==; X-CSE-ConnectionGUID: F2RPODrBS8yJMb6rU//H7w== X-CSE-MsgGUID: hLaFA+tpQTak2Jec7PCW3w== X-IronPort-AV: E=McAfee;i="6800,10657,11561"; a="63636441" X-IronPort-AV: E=Sophos;i="6.18,290,1751266800"; d="scan'208";a="63636441" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2025 04:56:30 -0700 X-CSE-ConnectionGUID: YJ3sV6k3Qhy4Wm6VPPGZZw== X-CSE-MsgGUID: Rv7JcszFSXCdrqdCGoxptw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,290,1751266800"; d="scan'208";a="181028266" Received: from rvuia-mobl.ger.corp.intel.com (HELO localhost) ([10.245.245.144]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2025 04:56:28 -0700 Date: Wed, 24 Sep 2025 14:56:25 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Tvrtko Ursulin Cc: intel-xe@lists.freedesktop.org Subject: Re: =?utf-8?B?4pyXIFhlLkNJLkZ1bGw6IGZhaWx1?= =?utf-8?Q?re?= for series starting with [1/2] drm/xe: Fix ggtt fb alignment Message-ID: References: <20250924081304.10098-1-tvrtko.ursulin@igalia.com> <175871229206.361551.6945179096330158702@1538d3639d33> <90ac93f9-90c4-4283-9dd7-f274cda34615@igalia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <90ac93f9-90c4-4283-9dd7-f274cda34615@igalia.com> X-Patchwork-Hint: comment Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" On Wed, Sep 24, 2025 at 12:26:31PM +0100, Tvrtko Ursulin wrote: > > > On 24/09/2025 12:11, Patchwork wrote: > > [snip] > > > Possible regressions > > > > * > > > > igt@kms_async_flips@async-flip-with-page-flip-events-tiled- > > atomic@pipe-d-dp-2-4: > > > > o shard-bmg: NOTRUN -> DMESG-WARN > tree/intel-xe/xe-pw-154941v1/shard-bmg-1/ > > igt@kms_async_flips@async-flip-with-page-flip-events-tiled- > > atomic@pipe-d-dp-2-4.html> +8 other tests dmesg-warn > > * > > > > igt@kms_async_flips@async-flip-with-page-flip-events-tiled@pipe-c- > > hdmi-a-3-4: > > > > o shard-bmg: PASS > xe-3822-af3cdefd0a1ad2dad29fcde0854ccbce494cc28a/shard-bmg-5/ > > igt@kms_async_flips@async-flip-with-page-flip-events-tiled@pipe- > > c-hdmi-a-3-4.html> -> DMESG-WARN > tree/intel-xe/xe-pw-154941v1/shard-bmg-8/ > > igt@kms_async_flips@async-flip-with-page-flip-events-tiled@pipe- > > c-hdmi-a-3-4.html> +18 other tests dmesg-warn > > Mysterious page faults. Looks like the BMG failures due DPT alignment / > 512 were real after all. Does it provide any hint to you Ville? Sounds like the same thing that's happening on MTL. For ADL I previously forced the DPT alignment in GGTT to 16k in tgl_plane_min_alignment() to cure async flip faults. I later tried the same trick on MTL, but I think I had to bump it to 32k to completely eliminate the faults there. And the MTL faults didn't seem to be entirely about alignment because IIRC the other way I could eliminate them was by adding a few dummy pages around the DPT in GGTT, even while forcing the start of DPT to be only 4k aligned. And that's when I got pulled into some other work and didn't have time to finish the investigation :/ -- Ville Syrjälä Intel