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 5FC6ED69105 for ; Thu, 28 Nov 2024 12:34:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DADC610E43D; Thu, 28 Nov 2024 12:34:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="kezMFgmn"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3696A10E43D for ; Thu, 28 Nov 2024 12:34:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1732797295; x=1764333295; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=uX25y0iGFjKwlE7ZCG4sVqCxtbHwHp2C1HWQknVAwMQ=; b=kezMFgmnCoKAFfoxc1kI432eQWtAw2D8N9HcYkLsjsGMuHRc2/o9SHkv tl6795yZbrfFQjJcx7Req9gK9xQvoEsLabgQW89qIYsAozgIY64hdaMKK /J8RNGGa9rryoBNU7rHYlAB73dzqPAnO+/ir30wYhYxEM/5wMSTc/HtZF KI0Ngw33TZRob3hsrh6+K/ryGmJ8Y7i0XYIuAlxggZlF3+SNlb3KXQGHX DC8KSqu/Ln8ibuCovW+MWBNLgYPXEyiFsCUe8bU//ELV77A+Mw0yKzM/R ZcPSyIfQDk6hlWBedIT2xjFzygIL3evdGlF8cTQ4z061gSYRUC9SmVYVi A==; X-CSE-ConnectionGUID: CiqQUZktQS+akTBfMcTNIg== X-CSE-MsgGUID: l5rqmW8MQ+uiITE3ZBsjCg== X-IronPort-AV: E=McAfee;i="6700,10204,11269"; a="35889950" X-IronPort-AV: E=Sophos;i="6.12,192,1728975600"; d="scan'208";a="35889950" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Nov 2024 04:34:55 -0800 X-CSE-ConnectionGUID: Mvhsy5RdSC6ysPmxMureBw== X-CSE-MsgGUID: qkpdw5HITQqufqwKDTL7bQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,192,1728975600"; d="scan'208";a="92391662" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by fmviesa008.fm.intel.com with SMTP; 28 Nov 2024 04:34:53 -0800 Received: by stinkbox (sSMTP sendmail emulation); Thu, 28 Nov 2024 14:34:52 +0200 Date: Thu, 28 Nov 2024 14:34:52 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Sebastian Brzezinka Cc: intel-gfx@lists.freedesktop.org Subject: Re: [PATCH 2/7] drm/i915: Disable compression tricks on JSL Message-ID: References: <20240918144445.5716-1-ville.syrjala@linux.intel.com> <20240918144445.5716-3-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Patchwork-Hint: comment 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 Wed, Nov 27, 2024 at 03:56:27PM +0000, Sebastian Brzezinka wrote: > > Hi Ville > > I found your patch looking at issue VLK-65591, seems like for some reason > cannot apply this workaround on JasperLake and end up with an error: > > ``` > <3> [463.126159] i915 0000:00:02.0: [drm] ERROR GT0: engine workaround lost on application! (reg[7000]=0x0, relevant bits were 0x0 vs expected 0x8000) > > ``` > > When the workaround is verified, 15th bit is not set. Is it possible that > this workaround is not available ? I would be grateful for any tips. I suppose it's possible the spec is wrong and the bit doesn't exist, or perhaps it's only present on some steppings. Shrug. I'm not seeing any problems being reported in CI however, so I'm a bit confused where these are happening? -- Ville Syrjälä Intel