From patchwork Wed Jul 1 08:39:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11635651 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 87A4992A for ; Wed, 1 Jul 2020 08:39:50 +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 707C22074D for ; Wed, 1 Jul 2020 08:39:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 707C22074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk 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 1050D6E429; Wed, 1 Jul 2020 08:39:48 +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 70F356E429 for ; Wed, 1 Jul 2020 08:39:46 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from build.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 21671913-1500050 for multiple; Wed, 01 Jul 2020 09:39:36 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 1 Jul 2020 09:39:36 +0100 Message-Id: <20200701083936.28723-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200701083936.28723-1-chris@chris-wilson.co.uk> References: <20200701083936.28723-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/2] drm/i915/gt: Move the heartbeat into the highprio system wq 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: Chris Wilson Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" As we ensure that the heartbeat is reasonably fast (and should not block), move the heartbeat work into the system_highprio_wq to avoid having this essential task be blocked behind other slow work, such as our own retire_work_handler. References: https://gitlab.freedesktop.org/drm/intel/-/issues/2119 Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c index 1663ab5c68a5..3699fa8a79e8 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c @@ -32,7 +32,7 @@ static bool next_heartbeat(struct intel_engine_cs *engine) delay = msecs_to_jiffies_timeout(delay); if (delay >= HZ) delay = round_jiffies_up_relative(delay); - mod_delayed_work(system_wq, &engine->heartbeat.work, delay); + mod_delayed_work(system_highpri_wq, &engine->heartbeat.work, delay); return true; }