From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B7C8C433E0 for ; Mon, 18 May 2020 07:58:12 +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 6B62520787 for ; Mon, 18 May 2020 07:58:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B62520787 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 DE4B36E130; Mon, 18 May 2020 07:58:11 +0000 (UTC) Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 393B489DA7 for ; Mon, 18 May 2020 07:58:03 +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 21226010-1500050 for multiple; Mon, 18 May 2020 08:57:51 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Mon, 18 May 2020 08:57:46 +0100 Message-Id: <20200518075750.17223-4-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200518075750.17223-1-chris@chris-wilson.co.uk> References: <20200518075750.17223-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 4/8] drm/i915/gt: Kick virtual siblings on timeslice out 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" If we decide to timeslice out the current virtual request, we will unsubmit it while it is still busy (ve->context.inflight == sibling[0]). If the virtual tasklet and then the other sibling tasklets run before we completely schedule out the active virtual request for the preemption, those other tasklets will see that the virtul request is still inflight on sibling[0] and leave it be. Therefore when we finally schedule-out the virtual request and if we see that we have passed it back to the virtual engine, reschedule the virtual tasklet so that it may be resubmitted on any of the siblings. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/gt/intel_lrc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 80885ba87db5..05486e801a63 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -1402,7 +1402,7 @@ static void kick_siblings(struct i915_request *rq, struct intel_context *ce) struct virtual_engine *ve = container_of(ce, typeof(*ve), context); struct i915_request *next = READ_ONCE(ve->request); - if (next && next->execution_mask & ~rq->execution_mask) + if (next == rq || (next && next->execution_mask & ~rq->execution_mask)) tasklet_hi_schedule(&ve->base.execlists.tasklet); } -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx