From patchwork Wed Jun 6 13:07:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10450207 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 963AA60146 for ; Wed, 6 Jun 2018 13:08:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 85F6628C0A for ; Wed, 6 Jun 2018 13:08:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7A8B828C0D; Wed, 6 Jun 2018 13:08:20 +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 0FE8328C0A for ; Wed, 6 Jun 2018 13:08:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 83AB16EFE4; Wed, 6 Jun 2018 13:08:18 +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 BB8056EFE4 for ; Wed, 6 Jun 2018 13:08:16 +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 11962199-1500050 for multiple; Wed, 06 Jun 2018 14:07:56 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Wed, 06 Jun 2018 14:07:58 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 6 Jun 2018 14:07:57 +0100 Message-Id: <20180606130757.20600-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.17.1 X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH] ctx-sync 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP --- drivers/gpu/drm/i915/intel_lrc.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index b06088bd644c..12db7212d643 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1777,12 +1777,31 @@ execlists_context_pin(struct intel_engine_cs *engine, return __execlists_context_pin(engine, ctx, ce); } +static int await_context_update(struct i915_request *request) +{ + struct i915_vma *vma = request->hw_context->state; + struct dma_fence *fence; + int err = 0; + + fence = reservation_object_get_excl_rcu(vma->resv); + if (fence) { + err = i915_request_await_dma_fence(request, fence); + dma_fence_put(fence); + } + + return err; +} + static int execlists_request_alloc(struct i915_request *request) { int ret; GEM_BUG_ON(!request->hw_context->pin_count); + ret = await_context_update(request); + if (ret) + return ret; + /* Flush enough space to reduce the likelihood of waiting after * we start building the request - in which case we will just * have to repeat work.