From patchwork Fri Jul 30 02:00:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinay Belgaumkar X-Patchwork-Id: 12410195 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 20F09C432BE for ; Fri, 30 Jul 2021 02:01:43 +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 E56E060F4B for ; Fri, 30 Jul 2021 02:01:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E56E060F4B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 226226EEC4; Fri, 30 Jul 2021 02:01:41 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id B79776EEBD; Fri, 30 Jul 2021 02:01:38 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10060"; a="200185995" X-IronPort-AV: E=Sophos;i="5.84,280,1620716400"; d="scan'208";a="200185995" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2021 19:01:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,280,1620716400"; d="scan'208";a="664637543" Received: from vbelgaum-ubuntu.fm.intel.com ([10.1.27.27]) by fmsmga006.fm.intel.com with ESMTP; 29 Jul 2021 19:01:38 -0700 From: Vinay Belgaumkar To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH 06/14] drm/i915/guc/slpc: Remove BUG_ON in guc_submission_disable Date: Thu, 29 Jul 2021 19:00:59 -0700 Message-Id: <20210730020107.31415-7-vinay.belgaumkar@intel.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20210730020107.31415-1-vinay.belgaumkar@intel.com> References: <20210730020107.31415-1-vinay.belgaumkar@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Matthew Brost , Vinay Belgaumkar Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The assumption when it was added was that GT would not be holding any gt_pm references. However, uc_init is called from gt_init_hw, which holds a forcewake ref. If SLPC enable fails, we will still be holding this ref, which will result in the BUG_ON. Reviewed-by: Matthew Brost Signed-off-by: Vinay Belgaumkar --- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index b6338742a594..48cbd800ca54 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -2523,10 +2523,6 @@ void intel_guc_submission_enable(struct intel_guc *guc) void intel_guc_submission_disable(struct intel_guc *guc) { - struct intel_gt *gt = guc_to_gt(guc); - - GEM_BUG_ON(gt->awake); /* GT should be parked first */ - /* Note: By the time we're here, GuC may have already been reset */ }