From patchwork Sat Jul 14 17:37:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10524831 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 A02896028E for ; Sat, 14 Jul 2018 17:37:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 87F022883B for ; Sat, 14 Jul 2018 17:37:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 79ABE28841; Sat, 14 Jul 2018 17:37:15 +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 2A5462883B for ; Sat, 14 Jul 2018 17:37:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 709D46E2B4; Sat, 14 Jul 2018 17:37:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 620766E2B4 for ; Sat, 14 Jul 2018 17:37:12 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 12353903-1500050 for multiple; Sat, 14 Jul 2018 18:36:55 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Sat, 14 Jul 2018 18:37:03 +0100 Message-Id: <20180714173703.7894-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/guc: Disable rpm wakeref asserts in GuC irq handler 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 From: Michał Winiarski We're seeing "RPM wakelock ref not held during HW access" warning otherwise. Since IRQs are synced for runtime suspend we can just disable the wakeref asserts. Reported-by: Marta Löfstedt Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105710 Signed-off-by: Michał Winiarski Cc: Chris Wilson Cc: Michal Wajdeczko --- drivers/gpu/drm/i915/intel_guc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index e12bd259df17..560c7406ae40 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -466,11 +466,13 @@ void intel_guc_to_host_event_handler_mmio(struct intel_guc *guc) * could happen that GuC sets the bit for 2nd interrupt but Host * clears out the bit on handling the 1st interrupt. */ + disable_rpm_wakeref_asserts(dev_priv); spin_lock(&guc->irq_lock); val = I915_READ(SOFT_SCRATCH(15)); msg = val & guc->msg_enabled_mask; I915_WRITE(SOFT_SCRATCH(15), val & ~msg); spin_unlock(&guc->irq_lock); + enable_rpm_wakeref_asserts(dev_priv); intel_guc_to_host_process_recv_msg(guc, msg); }