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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 62774C4332D for ; Thu, 19 Mar 2020 16:14:26 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3E2752072C for ; Thu, 19 Mar 2020 16:14:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E2752072C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A634B6E180; Thu, 19 Mar 2020 16:14:25 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4D8B26E180 for ; Thu, 19 Mar 2020 16:14:24 +0000 (UTC) IronPort-SDR: 4RQcdsSCOU2q+qnw1i8rmTlMSL3X9ZUHNTkGLlEj4WA7VRIsSN86tchutxPQWm05uO0r1stf2s bNX+cp/uCoMA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2020 09:14:23 -0700 IronPort-SDR: SSzhJLipZxH1W875KRNAg8N2XFSIaICqXP0WWCkKqoU8zRbr2WIbjJToAlISJtQJYZ7umNhpcN BKvFYSq3ZRtw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,572,1574150400"; d="scan'208";a="238967231" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by orsmga008.jf.intel.com with SMTP; 19 Mar 2020 09:14:21 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 19 Mar 2020 18:14:20 +0200 Date: Thu, 19 Mar 2020 18:14:20 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Arkadiusz Hiler Message-ID: <20200319161420.GM13686@intel.com> References: <20200319092034.695709-1-arkadiusz.hiler@intel.com> <20200319093003.zagegwlakj35en56@ahiler-desk1.fi.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200319093003.zagegwlakj35en56@ahiler-desk1.fi.intel.com> X-Patchwork-Hint: comment User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [Intel-gfx] [PATCH] drm/i915/display: Increase the DDI idle timeout to 500us 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: intel-gfx@lists.freedesktop.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Thu, Mar 19, 2020 at 11:30:03AM +0200, Arkadiusz Hiler wrote: > On Thu, Mar 19, 2020 at 11:20:34AM +0200, Arkadiusz Hiler wrote: > > Bspec says that we should timeout after 500us. Let's match this in the > > code. It may help with few of the timeouts we see here and there. > = > Plese disregard. it's 500us when waiting on non-idle and only 8 (16 > for BXT) for back to idle. Could probably convert to intel_de_wait_for...() regardless. 1ms vs. 16us isn't going to kill us in modeset code. The exact bspec value can be kept as a comment. -- = Ville Syrj=E4l=E4 Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx