From patchwork Tue Nov 19 16:25:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11252439 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 524E5930 for ; Tue, 19 Nov 2019 16:26:07 +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 3AF70223B0 for ; Tue, 19 Nov 2019 16:26:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3AF70223B0 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 BE2DF6E99F; Tue, 19 Nov 2019 16:26:04 +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 E11B26E992 for ; Tue, 19 Nov 2019 16:26:02 +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 19260507-1500050 for ; Tue, 19 Nov 2019 16:26:00 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Tue, 19 Nov 2019 16:25:58 +0000 Message-Id: <20191119162559.3313003-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Subject: [Intel-gfx] [CI 1/2] drm/i915/gt: Move new timelines to the end of active_list 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" When adding a new active timeline, place it at the end of the list. This allows for intel_gt_retire_requests() to pick up the newcomer more quickly and hopefully complete the retirement sooner. A miniscule optimisation. References: 7936a22dd466 ("drm/i915/gt: Wait for new requests in intel_gt_retire_requests()") Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Reviewed-by: Tvrtko Ursulin --- drivers/gpu/drm/i915/gt/intel_timeline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c index 16a9e88d93de..0e277835aad0 100644 --- a/drivers/gpu/drm/i915/gt/intel_timeline.c +++ b/drivers/gpu/drm/i915/gt/intel_timeline.c @@ -342,7 +342,7 @@ void intel_timeline_enter(struct intel_timeline *tl) GEM_BUG_ON(!tl->active_count); /* overflow? */ spin_lock_irqsave(&timelines->lock, flags); - list_add(&tl->link, &timelines->active_list); + list_add_tail(&tl->link, &timelines->active_list); spin_unlock_irqrestore(&timelines->lock, flags); }