Message ID | 20190614071023.17929-38-chris@chris-wilson.co.uk (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <intel-gfx-bounces@lists.freedesktop.org> 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 7C04F1395 for <patchwork-intel-gfx@patchwork.kernel.org>; Fri, 14 Jun 2019 07:11:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 67BF827CF3 for <patchwork-intel-gfx@patchwork.kernel.org>; Fri, 14 Jun 2019 07:11:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5965F27DCD; Fri, 14 Jun 2019 07:11:24 +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 0670627CF3 for <patchwork-intel-gfx@patchwork.kernel.org>; Fri, 14 Jun 2019 07:11:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 864C789337; Fri, 14 Jun 2019 07:11:23 +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 31EEB894E3 for <intel-gfx@lists.freedesktop.org>; Fri, 14 Jun 2019 07:11:10 +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 16897548-1500050 for multiple; Fri, 14 Jun 2019 08:10:42 +0100 From: Chris Wilson <chris@chris-wilson.co.uk> To: intel-gfx@lists.freedesktop.org Date: Fri, 14 Jun 2019 08:10:21 +0100 Message-Id: <20190614071023.17929-38-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190614071023.17929-1-chris@chris-wilson.co.uk> References: <20190614071023.17929-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 37/39] drm/i915: Use forced preemptions in preference over hangcheck X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development <intel-gfx.lists.freedesktop.org> List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe> List-Archive: <https://lists.freedesktop.org/archives/intel-gfx> List-Post: <mailto:intel-gfx@lists.freedesktop.org> List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help> List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org> X-Virus-Scanned: ClamAV using ClamSMTP |
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[01/39] drm/i915: Discard some redundant cache domain flushes
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diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index ae7155f0e063..9a4e58d637ee 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -43,7 +43,8 @@ static int intel_gt_unpark(struct intel_wakeref *wf) i915_pmu_gt_unparked(i915); - i915_queue_hangcheck(i915); + if (!(i915->caps.scheduler & I915_SCHEDULER_CAP_PREEMPTION)) + i915_queue_hangcheck(i915); pm_notify(i915, INTEL_GT_UNPARK);
How well does this work in practice? It means that unless someone else is attempting to run we do not reset infinite loops. Maybe that is a good thing. Opens: * This sacrifices error capture. Maybe make that an opt-in with a watchdog. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> --- drivers/gpu/drm/i915/gt/intel_gt_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)