From patchwork Thu Sep 14 09:55:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: sagar.a.kamble@intel.com X-Patchwork-Id: 9952667 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C403060317 for ; Thu, 14 Sep 2017 09:52:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ACBB928950 for ; Thu, 14 Sep 2017 09:52:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A17BC28955; Thu, 14 Sep 2017 09:52:07 +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=-4.2 required=2.0 tests=BAYES_00, 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 6C48328950 for ; Thu, 14 Sep 2017 09:52:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E9F706E9E7; Thu, 14 Sep 2017 09:52:06 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id D9CAE6E9E1 for ; Thu, 14 Sep 2017 09:52:04 +0000 (UTC) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Sep 2017 02:51:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,392,1500966000"; d="scan'208";a="311578661" Received: from sakamble-desktop.iind.intel.com ([10.223.26.118]) by fmsmga004.fm.intel.com with ESMTP; 14 Sep 2017 02:51:54 -0700 From: Sagar Arun Kamble To: intel-gfx@lists.freedesktop.org Date: Thu, 14 Sep 2017 15:25:08 +0530 Message-Id: <1505382908-6844-7-git-send-email-sagar.a.kamble@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1505382908-6844-1-git-send-email-sagar.a.kamble@intel.com> References: <1505382908-6844-1-git-send-email-sagar.a.kamble@intel.com> Subject: [Intel-gfx] [PATCH 6/6] drm/i915/guc: Grab RPM wakelock while disabling GuC interrupts X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: "Kamble, Sagar A" Disabling GuC interrupts involves access to GuC IRQ control registers hence ensure device is RPM awake. Cc: Michal Wajdeczko Signed-off-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/intel_guc_log.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_guc_log.c b/drivers/gpu/drm/i915/intel_guc_log.c index ba36162..d7557b5 100644 --- a/drivers/gpu/drm/i915/intel_guc_log.c +++ b/drivers/gpu/drm/i915/intel_guc_log.c @@ -657,8 +657,10 @@ void i915_guc_log_unregister(struct drm_i915_private *dev_priv) return; mutex_lock(&dev_priv->drm.struct_mutex); + intel_runtime_pm_get(dev_priv); /* GuC logging is currently the only user of Guc2Host interrupts */ gen9_disable_guc_interrupts(dev_priv); + intel_runtime_pm_put(dev_priv); guc_log_runtime_destroy(&dev_priv->guc); mutex_unlock(&dev_priv->drm.struct_mutex); }