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 3C79FC87FCF for ; Mon, 4 Aug 2025 15:46:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BA47410E1F4; Mon, 4 Aug 2025 15:46:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="naFjh2CE"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id F297F10E1F4 for ; Mon, 4 Aug 2025 15:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1754322415; x=1785858415; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version:content-transfer-encoding; bh=7NLgNcctoySr9Xq/uQ4FS42hcyA1a298AW+JsRy+OvY=; b=naFjh2CE/QMgehFsvzQbVIhOSRCzFDuxa+u86rORdMeFPlAmbPoKzqIh oWSCDniVanyTcmoEr645MssbOmD1XLfnJHm8RvFR6ygKaR0wB9qfM5qj0 NWUGhOtdR1mBIuis+ijYacmIhdGgzEVWPGHTLOeLxXJQK6FnDWqEGu0zM PoJth3l/7XyOzsGcQ4oiWN+SSe6Ux43QVGyAiadWXaF/WepTfU83xvFXb 0345Oed+N/u35eUIzdYfWC128C29xiOmF/kERx7Cj4wsnHV5vJFtpet38 9T7zHPgDI2js9ZOPi8vufoGlqz2jw3SIGPU/E7V5PEt0wwAwCwxKH1KYy A==; X-CSE-ConnectionGUID: 8uLlspSISFKzaCKu1eQpGg== X-CSE-MsgGUID: p4gnOlohTIGyvD4reDOj3g== X-IronPort-AV: E=McAfee;i="6800,10657,11512"; a="82046810" X-IronPort-AV: E=Sophos;i="6.17,258,1747724400"; d="scan'208";a="82046810" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2025 08:46:54 -0700 X-CSE-ConnectionGUID: 4r+k44hAQGe0UuMVXyuajg== X-CSE-MsgGUID: 9oIXnQWRQXeXG2joqcbBmA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,258,1747724400"; d="scan'208";a="201363515" Received: from fdefranc-mobl3.ger.corp.intel.com (HELO localhost) ([10.245.246.236]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2025 08:46:52 -0700 From: Jani Nikula To: =?utf-8?Q?Ren=C3=A9?= Herman , "Murthy, Arun R" , Rodrigo Vivi , Ville =?utf-8?B?U3lyasOkbMOk?= Cc: intel-gfx@lists.freedesktop.org Subject: Re: Issue or bug concerning DRRS on old i7-4980HQ In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <3aebffd3-b3b7-4c3c-a7ac-816965d0204d@gmail.com> <77f3386d-756b-4cca-b317-1b3c5ad725fb@gmail.com> <9fba1363-5c7d-4b2a-91e1-40bd0e6ac665@intel.com> Date: Mon, 04 Aug 2025 18:46:48 +0300 Message-ID: <3e6e7022aa88f8097b6176068cf8bbe28587cb10@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Mon, 04 Aug 2025, Ren=C3=A9 Herman wrote: > On 04-08-2025 10:48, Murthy, Arun R wrote: > >> On 02-08-2025 16:06, Ren=C3=A9 Herman wrote: > >>> Although I'm not a graphics/display person, seems to me it's more >>> or less fixed by Arun Murthy (added to the To: list) in the last, >>> still recent-ish comment on that bug? >>=20 >> This was a debug patch provided to root case the issue and not a >> proper fix! > OK, but it's a real question I have, not meant flippantly or anythng:=20 > what is then the idea of the DRRS CTL when it's enable/activated again=20 > immediately anyway? I'm not at all familiar with this code or even=20 > technology; I assume I'm missing something. The debugfs is mainly for testing, where the scenarios that re-enable DRRS are under control. BR, Jani. --=20 Jani Nikula, Intel