From patchwork Fri Nov 15 15:08:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11246525 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 2DAFB6C1 for ; Fri, 15 Nov 2019 15:08:59 +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 16CDA20733 for ; Fri, 15 Nov 2019 15:08:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16CDA20733 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 BC9F46E7C0; Fri, 15 Nov 2019 15:08:56 +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 0C8BC6E7DD for ; Fri, 15 Nov 2019 15:08:54 +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 19214697-1500050 for multiple; Fri, 15 Nov 2019 15:08:43 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Fri, 15 Nov 2019 15:08:39 +0000 Message-Id: <20191115150841.880349-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/3] drm/i915/gt: Flush retire.work timer object on unload 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" We need to wait until the timer object is marked as deactivated before unloading, so follow up our gentle cancel_delayed_work() with the synchronous variant to ensure it is flushed off a remote cpu before we mark the memory as freed. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111994 Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/gt/intel_gt.c | 1 + drivers/gpu/drm/i915/gt/intel_gt_requests.c | 6 ++++++ drivers/gpu/drm/i915/gt/intel_gt_requests.h | 1 + 3 files changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index c39b21c8d328..b5a9b87e4ec9 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -397,6 +397,7 @@ void intel_gt_driver_release(struct intel_gt *gt) void intel_gt_driver_late_release(struct intel_gt *gt) { intel_uc_driver_late_release(>->uc); + intel_gt_fini_requests(gt); intel_gt_fini_reset(gt); intel_gt_fini_timelines(gt); } diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.c b/drivers/gpu/drm/i915/gt/intel_gt_requests.c index ccbddddbbd52..a79e6efb31a2 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.c @@ -130,3 +130,9 @@ void intel_gt_unpark_requests(struct intel_gt *gt) schedule_delayed_work(>->requests.retire_work, round_jiffies_up_relative(HZ)); } + +void intel_gt_fini_requests(struct intel_gt *gt) +{ + /* Wait until the work is marked as finished before unloading! */ + cancel_delayed_work_sync(>->requests.retire_work); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.h b/drivers/gpu/drm/i915/gt/intel_gt_requests.h index bd31cbce47e0..fde546424c63 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.h @@ -20,5 +20,6 @@ int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout); void intel_gt_init_requests(struct intel_gt *gt); void intel_gt_park_requests(struct intel_gt *gt); void intel_gt_unpark_requests(struct intel_gt *gt); +void intel_gt_fini_requests(struct intel_gt *gt); #endif /* INTEL_GT_REQUESTS_H */