From patchwork Mon Oct 22 23:04:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniele Ceraolo Spurio X-Patchwork-Id: 10652621 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 642F514DE for ; Mon, 22 Oct 2018 23:04:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E19A129043 for ; Mon, 22 Oct 2018 23:04:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D5E942904A; Mon, 22 Oct 2018 23:04:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7BFE729043 for ; Mon, 22 Oct 2018 23:04:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BEA6E8975F; Mon, 22 Oct 2018 23:04:42 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 33FC3895E2 for ; Mon, 22 Oct 2018 23:04:37 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 16:04:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,413,1534834800"; d="scan'208";a="267898617" Received: from relo-linux-1.fm.intel.com ([10.1.27.112]) by orsmga005.jf.intel.com with ESMTP; 22 Oct 2018 16:04:36 -0700 From: Daniele Ceraolo Spurio To: intel-gfx@lists.freedesktop.org Date: Mon, 22 Oct 2018 16:04:25 -0700 Message-Id: <20181022230427.5616-4-daniele.ceraolospurio@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181022230427.5616-1-daniele.ceraolospurio@intel.com> References: <20181022230427.5616-1-daniele.ceraolospurio@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [CI 4/6] drm/i915/guc: fix comment about fallback to execlists X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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" X-Virus-Scanned: ClamAV using ClamSMTP We stopped supporting fallback to execlists in commit 121981fafe69 (drm/i915/guc: Combine enable_guc_loading|submission modparams). We do instead reset and retry in some cases, depending on the workarounds required by the platform. Cc: Michal Wajdeczko Cc: Chris Wilson Signed-off-by: Daniele Ceraolo Spurio Reviewed-by: Michal Wajdeczko --- drivers/gpu/drm/i915/intel_guc_fw.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c index a9e6fcce467c..e722bbc1fa1d 100644 --- a/drivers/gpu/drm/i915/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/intel_guc_fw.c @@ -217,8 +217,8 @@ static int guc_wait_ucode(struct intel_guc *guc) * NB: Docs recommend not using the interrupt for completion. * Measurements indicate this should take no more than 20ms, so a * timeout here indicates that the GuC has failed and is unusable. - * (Higher levels of the driver will attempt to fall back to - * execlist mode if this happens.) + * (Higher levels of the driver may decide to reset the GuC and + * attempt the ucode load again if this happens.) */ ret = wait_for(guc_ready(guc, &status), 100); DRM_DEBUG_DRIVER("GuC status %#x\n", status);