From patchwork Wed Feb 14 23:53:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elizabeth Figura X-Patchwork-Id: 773199 Received: from mail.codeweavers.com (mail.codeweavers.com [4.36.192.163]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 51C9E14D433; Wed, 14 Feb 2024 23:53:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=4.36.192.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707954831; cv=none; b=VTBTLOJFJQRo8zIArp0dNOhDQiulhkVx1YEgva7MQ2Lo8oSKDQU2+l0gxWh3uxF/oOPeZgBUQ95pTWSkXKVcnDSK+/EVbCBMXUXLgE5ZEN/l5LqYXcDOgaFcbhquUQJ5bgpRqRQvf9JP/UT9BKoS2iV2UbgHyKIC1xloi1UYfYM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707954831; c=relaxed/simple; bh=Ddjx78QUtC0RbxcDkYV8RaG2W8+XPCha3K5iES8++eQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QpJLMJynzgwR/b+YGFmBvTfknPto0qkSIw0KBPHx/180amY6UCnGHBKSpZi0+UFPHfSwnn1HeniXAgp9RISxh4ZqfPqKlV78yYzwslW8m24LsRXMpTNjTBz2GwYj5UDE7Ny7LnQ/9IP+BK8AghKSc8jNW3pgyG1p3EoEYq0CpxY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=codeweavers.com; spf=pass smtp.mailfrom=codeweavers.com; dkim=pass (2048-bit key) header.d=codeweavers.com header.i=@codeweavers.com header.b=o1t/pmpg; arc=none smtp.client-ip=4.36.192.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=codeweavers.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=codeweavers.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=codeweavers.com header.i=@codeweavers.com header.b="o1t/pmpg" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=codeweavers.com; s=s1; h=Message-ID:Date:Subject:Cc:To:From:Sender; bh=wAxHkc1KRM5IG5HCO70haB7ZsnprDYue3SbtBV3eDKM=; b=o1t/pmpgwGWoAmXrVwe6+cZ6wr O3xTkrcltn0bCz3kT21I6Au57veA578Jgb8ibgTUAJR8INP0ZFE0lSXUmwYeqWh5OCwMUN/2udphh uOB4AeEIf/MaokUZjMb7NBBuuBzdjocZxoHxw294DGE4ATLYNe5dJubAMNTzcDQ+4pMvT6uk4IeJG wG4VSJhVGHdcRAVxlHPIpHMfNEfTUBYK6oGhTYkB1wGlPpWqMxGqeShelIyt0HE5rUwQH3qJKb9X3 ikTQhXQZ78gP+3ULpB/J//8GP2xKR62a6ZoCRixXRbQhWh0vMa2ySJf0QdgsbriQUh+UlKPSWigZS Kryg+IOw==; Received: from cw137ip160.mn.codeweavers.com ([10.69.137.160] helo=camazotz.mn.codeweavers.com) by mail.codeweavers.com with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1raP4U-00GcSK-2R; Wed, 14 Feb 2024 17:53:46 -0600 From: Elizabeth Figura To: Arnd Bergmann , Greg Kroah-Hartman , Jonathan Corbet , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, wine-devel@winehq.org, =?utf-8?q?Andr=C3=A9_Almeida?= , Wolfram Sang , Arkadiusz Hiler , Peter Zijlstra , Andy Lutomirski , linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Elizabeth Figura Subject: [PATCH 27/31] selftests: ntsync: Add tests for alertable waits. Date: Wed, 14 Feb 2024 17:53:02 -0600 Message-ID: <20240214235307.10494-18-zfigura@codeweavers.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240214235307.10494-1-zfigura@codeweavers.com> References: <20240214233645.9273-1-zfigura@codeweavers.com> <20240214235307.10494-1-zfigura@codeweavers.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Test the "alert" functionality of NTSYNC_IOC_WAIT_ALL and NTSYNC_IOC_WAIT_ANY, when a wait is woken with an alert and when it is woken by an object. Signed-off-by: Elizabeth Figura --- .../testing/selftests/drivers/ntsync/ntsync.c | 179 +++++++++++++++++- 1 file changed, 176 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/drivers/ntsync/ntsync.c b/tools/testing/selftests/drivers/ntsync/ntsync.c index bcf33bcf8c51..6c13b1f25d38 100644 --- a/tools/testing/selftests/drivers/ntsync/ntsync.c +++ b/tools/testing/selftests/drivers/ntsync/ntsync.c @@ -95,7 +95,7 @@ static int read_event_state(int event, __u32 *signaled, __u32 *manual) }) static int wait_objs(int fd, unsigned long request, __u32 count, - const int *objs, __u32 owner, __u32 *index) + const int *objs, __u32 owner, int alert, __u32 *index) { struct ntsync_wait_args args = {0}; struct timespec timeout; @@ -108,6 +108,7 @@ static int wait_objs(int fd, unsigned long request, __u32 count, args.objs = (uintptr_t)objs; args.owner = owner; args.index = 0xdeadbeef; + args.alert = alert; ret = ioctl(fd, request, &args); *index = args.index; return ret; @@ -115,12 +116,26 @@ static int wait_objs(int fd, unsigned long request, __u32 count, static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index) { - return wait_objs(fd, NTSYNC_IOC_WAIT_ANY, count, objs, owner, index); + return wait_objs(fd, NTSYNC_IOC_WAIT_ANY, count, objs, owner, 0, index); } static int wait_all(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index) { - return wait_objs(fd, NTSYNC_IOC_WAIT_ALL, count, objs, owner, index); + return wait_objs(fd, NTSYNC_IOC_WAIT_ALL, count, objs, owner, 0, index); +} + +static int wait_any_alert(int fd, __u32 count, const int *objs, + __u32 owner, int alert, __u32 *index) +{ + return wait_objs(fd, NTSYNC_IOC_WAIT_ANY, + count, objs, owner, alert, index); +} + +static int wait_all_alert(int fd, __u32 count, const int *objs, + __u32 owner, int alert, __u32 *index) +{ + return wait_objs(fd, NTSYNC_IOC_WAIT_ALL, + count, objs, owner, alert, index); } TEST(semaphore_state) @@ -1095,4 +1110,162 @@ TEST(wake_all) close(fd); } +TEST(alert_any) +{ + struct ntsync_event_args event_args = {0}; + struct ntsync_sem_args sem_args = {0}; + __u32 index, count, signaled; + int objs[2], fd, ret; + + fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY); + ASSERT_LE(0, fd); + + sem_args.count = 0; + sem_args.max = 2; + sem_args.sem = 0xdeadbeef; + ret = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[0] = sem_args.sem; + + sem_args.count = 1; + sem_args.max = 2; + sem_args.sem = 0xdeadbeef; + ret = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[1] = sem_args.sem; + + event_args.manual = true; + event_args.signaled = true; + ret = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + ret = wait_any_alert(fd, 0, NULL, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_RESET, &signaled); + EXPECT_EQ(0, ret); + + ret = wait_any_alert(fd, 0, NULL, 123, event_args.event, &index); + EXPECT_EQ(-1, ret); + EXPECT_EQ(ETIMEDOUT, errno); + + ret = ioctl(event_args.event, NTSYNC_IOC_EVENT_SET, &signaled); + EXPECT_EQ(0, ret); + + ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(1, index); + + ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + close(event_args.event); + + /* test with an auto-reset event */ + + event_args.manual = false; + event_args.signaled = true; + ret = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + count = 1; + ret = post_sem(objs[0], &count); + EXPECT_EQ(0, ret); + + ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(-1, ret); + EXPECT_EQ(ETIMEDOUT, errno); + + close(event_args.event); + + close(objs[0]); + close(objs[1]); + + close(fd); +} + +TEST(alert_all) +{ + struct ntsync_event_args event_args = {0}; + struct ntsync_sem_args sem_args = {0}; + __u32 index, count, signaled; + int objs[2], fd, ret; + + fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY); + ASSERT_LE(0, fd); + + sem_args.count = 2; + sem_args.max = 2; + sem_args.sem = 0xdeadbeef; + ret = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[0] = sem_args.sem; + + sem_args.count = 1; + sem_args.max = 2; + sem_args.sem = 0xdeadbeef; + ret = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[1] = sem_args.sem; + + event_args.manual = true; + event_args.signaled = true; + ret = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + close(event_args.event); + + /* test with an auto-reset event */ + + event_args.manual = false; + event_args.signaled = true; + ret = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + count = 2; + ret = post_sem(objs[1], &count); + EXPECT_EQ(0, ret); + + ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(-1, ret); + EXPECT_EQ(ETIMEDOUT, errno); + + close(event_args.event); + + close(objs[0]); + close(objs[1]); + + close(fd); +} + TEST_HARNESS_MAIN