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 C2DE0C6FD1C for ; Sat, 11 Mar 2023 20:46:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0E19610E1D4; Sat, 11 Mar 2023 20:46:09 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 431F810E090; Sat, 11 Mar 2023 20:46:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678567567; x=1710103567; h=date:message-id:from:to:cc:subject:in-reply-to: references:mime-version; bh=/iB7Aljs+xvez8AVDiZY8ibe3Mz0r5XOBXYI4c99VjQ=; b=AwVCoFw8IKGz/TdWjF84q71dMFKYuKCsr5jcUsCZ7vI2BSMtBrarL9od 8obLHk0piPf27cdXrqYXsJ0/1wUv+wTO3MgaxaXmLQRhXpIeI2RQ+ahAL 3dtUFVzlVsMmpiJ4JXG/80GMVyy0r3ekyNZjmFQP4Hub7rbA0cV/GI9RZ nUu7/qSYkKsQMhq1tuiaG7G3rmgDpbL3bsAdtyZroJNprlviF69crHCZt kD6q1DS7mufRUOOHrXLuSO43dDRMeh4W0tY7PyVm1c3I2KYtmDTEluuSM 0tLeBfDnH6JuyCqP7YWqAmoVmicA5VuhpOIBAM3m2gSE+w+jylYG+iYLH A==; X-IronPort-AV: E=McAfee;i="6500,9779,10646"; a="336960745" X-IronPort-AV: E=Sophos;i="5.98,253,1673942400"; d="scan'208";a="336960745" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2023 12:46:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10646"; a="788439140" X-IronPort-AV: E=Sophos;i="5.98,253,1673942400"; d="scan'208";a="788439140" Received: from ammowson-mobl.amr.corp.intel.com (HELO adixit-arch.intel.com) ([10.212.157.57]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2023 12:46:06 -0800 Date: Sat, 11 Mar 2023 12:46:05 -0800 Message-ID: <87v8j7kodu.wl-ashutosh.dixit@intel.com> From: "Dixit, Ashutosh" To: intel-gfx@lists.freedesktop.org In-Reply-To: <20230311003358.1660191-1-ashutosh.dixit@intel.com> References: <20230311003358.1660191-1-ashutosh.dixit@intel.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.2 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Subject: Re: [Intel-gfx] [PATCH] drm/i915/guc: Disable PL1 power limit when loading GuC firmware X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Fri, 10 Mar 2023 16:33:58 -0800, Ashutosh Dixit wrote: > > On dGfx, the PL1 power limit being enabled and set to a low value results > in a low GPU operating freq. It also negates the freq raise operation which > is done before GuC firmware load. As a result GuC firmware load can time > out. Such timeouts were seen in the GL #8062 bug below (where the PL1 power > limit was enabled and set to a low value). Therefore disable the PL1 power > limit when possible when loading GuC firmware. There are a couple of bugs in the patch. Please don't review yet, will post a v2. Thanks.