From patchwork Fri May 8 08:16:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11535905 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 3FADB14B4 for ; Fri, 8 May 2020 08:17:06 +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 2801F206D5 for ; Fri, 8 May 2020 08:17:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2801F206D5 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 E9A6A6E2E6; Fri, 8 May 2020 08:17:04 +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 9502F6E225 for ; Fri, 8 May 2020 08:17:03 +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 21147514-1500050 for multiple; Fri, 08 May 2020 09:16:35 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Fri, 8 May 2020 09:16:25 +0100 Message-Id: <20200508081630.13882-6-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200508081630.13882-1-chris@chris-wilson.co.uk> References: <20200508081630.13882-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 06/11] drm/syncobj: Allow use of dma-fence-proxy 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" Allow the callers to supply a dma-fence-proxy for asynchronous waiting on future fences. Signed-off-by: Chris Wilson --- drivers/gpu/drm/drm_syncobj.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 42d46414f767..e141db0e1eb6 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -184,6 +184,7 @@ */ #include +#include #include #include #include @@ -324,14 +325,9 @@ void drm_syncobj_replace_fence(struct drm_syncobj *syncobj, struct dma_fence *old_fence; struct syncobj_wait_entry *cur, *tmp; - if (fence) - dma_fence_get(fence); - spin_lock(&syncobj->lock); - old_fence = rcu_dereference_protected(syncobj->fence, - lockdep_is_held(&syncobj->lock)); - rcu_assign_pointer(syncobj->fence, fence); + old_fence = dma_fence_replace_proxy(&syncobj->fence, fence); if (fence != old_fence) { list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node)