From patchwork Tue Sep 13 18:22:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Foss X-Patchwork-Id: 9329787 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 3CAA2607FD for ; Tue, 13 Sep 2016 18:23:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3422129003 for ; Tue, 13 Sep 2016 18:23:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 288612959D; Tue, 13 Sep 2016 18:23:33 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY 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 D702229003 for ; Tue, 13 Sep 2016 18:23:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 08A976E30C; Tue, 13 Sep 2016 18:23:25 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by gabe.freedesktop.org (Postfix) with ESMTPS id 666CA6E2FE for ; Tue, 13 Sep 2016 18:23:23 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: robertfoss) with ESMTPSA id 15E892675CE From: robert.foss@collabora.com To: intel-gfx@lists.freedesktop.org, Gustavo Padovan , Daniel Stone , Daniel Vetter , Marius Vlad , Eric Engestrom , Chris Wilson Date: Tue, 13 Sep 2016 14:22:55 -0400 Message-Id: <20160913182258.3595-11-robert.foss@collabora.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160913182258.3595-1-robert.foss@collabora.com> References: <20160913182258.3595-1-robert.foss@collabora.com> Subject: [Intel-gfx] [PATCH i-g-t v3 10/13] tests/sw_sync: Add subtest test_sync_multi_consumer_producer X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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 From: Robert Foss This test verifies that stressing the kernel by creating multiple consumer/producer threads that wait on a single timeline to be incremented by another conumer/producer thread does not fail. And that the order amongst the threads is maintained. Signed-off-by: Robert Foss Reviewed-by: Eric Engestrom --- tests/sw_sync.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/tests/sw_sync.c b/tests/sw_sync.c index 7de93a8..27531ab 100644 --- a/tests/sw_sync.c +++ b/tests/sw_sync.c @@ -304,6 +304,86 @@ static void test_sync_multi_consumer(void) igt_assert_f(thread_ret == 0, "A sync thread reported failure.\n"); } +static void * test_sync_multi_consumer_producer_thread(void *arg) +{ + data_t *data = arg; + int thread_id = data->thread_id; + int nbr_threads = data->nbr_threads; + int timeline = data->timeline; + int iterations = data->nbr_iterations; + int ret, i; + + for (i = 0; i < iterations; i++) { + int next_point = i * nbr_threads + thread_id; + int fence = sw_sync_fence_create(timeline, next_point); + + ret = sw_sync_wait(fence, 1000); + if (ret <= 0) + { + return (void *) 1; + } + + if (*(data->counter) != next_point) + { + return (void *) 1; + } + + (*data->counter)++; + + /* Kick off the next thread. */ + sw_sync_timeline_inc(timeline, 1); + + close(fence); + } + return NULL; +} + +static void test_sync_multi_consumer_producer(void) +{ + const uint32_t nbr_threads = 8; + const uint32_t nbr_iterations = 1 << 14; + data_t data_arr[nbr_threads]; + pthread_t thread_arr[nbr_threads]; + int timeline; + volatile uint32_t counter = 0; + uintptr_t thread_ret = 0; + data_t data; + int i, ret; + + timeline = sw_sync_timeline_create(); + + data.nbr_iterations = nbr_iterations; + data.nbr_threads = nbr_threads; + data.counter = &counter; + data.timeline = timeline; + + /* Start consumer threads. */ + for (i = 0; i < nbr_threads; i++) + { + data_arr[i] = data; + data_arr[i].thread_id = i; + ret = pthread_create(&thread_arr[i], NULL, + test_sync_multi_consumer_producer_thread, + (void *) &(data_arr[i])); + igt_assert_eq(ret, 0); + } + + /* Wait for threads to complete. */ + for (i = 0; i < nbr_threads; i++) + { + uintptr_t local_thread_ret; + pthread_join(thread_arr[i], (void **)&local_thread_ret); + thread_ret |= local_thread_ret; + } + + close(timeline); + + igt_assert_f(counter == nbr_threads * nbr_iterations, + "Counter has unexpected value.\n"); + + igt_assert_f(thread_ret == 0, "A sync thread reported failure.\n"); +} + igt_main { igt_subtest("alloc_timeline") @@ -329,5 +409,8 @@ igt_main igt_subtest("sync_multi_consumer") test_sync_multi_consumer(); + + igt_subtest("sync_multi_consumer_producer") + test_sync_multi_consumer_producer(); }