From nobody Tue Feb 10 00:22:21 2026 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 B23E3125AE; Tue, 16 Apr 2024 01:10:31 +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=1713229833; cv=none; b=tgbzfN6RO/Y5YChnCaWcNpBllojsBMTQodJgMQEgxMacnv0kxJepwWi+yC3OPG/z7QD74WbmvAq6egpiOfDqtzXD7057CtbVPZZOIUDTFMrigQ1AXOpJL3D1cjGjgwBZAcqpSQj0anQQwq6mLlJnRbZsx0fBdD3QFk5jee6K/2M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713229833; c=relaxed/simple; bh=5s4cbaXOZdhl8OxqDpewcvkpg1+2LrCYlh67RC1NKLk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=twztdJBC5Jgljmb0kkDe1m7rzt9j2+BVkv+AeXkDxtanl2RThjBT320lb2exEvngEtFrgacqAKScMf19VgImAdbPrapqhnagtpJ/b9upc+ITAsBdRRvh45vL8gmB268bgDlS71q2H7lQJ/4lpfN68vWUveAVFEDgX/YlH89gUiE= 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=Gn629HOn; 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="Gn629HOn" 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=aNMQ5WQ+qy6vOq9RLq84GZmYMjpbBBXHBNy41a5mB8g=; b=Gn629HOnn0B1qXq/ZyAzInKpQ6 0/wk6LNwIPxWR8qEyMk1CxOO22Nz/dlYPxx0KOb/Y4J9HUpeMlQ1RFghDV9pIxj5hS94cTQzGwy1z zZRfkuZyMchN/4nATMJOGLGhxMvNqEqJf73Uq4/6+ledXfvzfaL5qF8AWx+qKPXeAGKTVZdBb/f12 fZnOlGLLg46sjK84UmdHrvqsJOFsdhFW1UarNe8jVIZHCWvXsdOCL/PdegLBXWjpl0APJhtH77KOE 9ya3WzXmH3RFtHeqjE5mB3nD/hLpttgtzL7PfA0tMhzDudVQCNsDZ6blr5B8E42Uja01TfP2fPU4x jquh2ktQ==; 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 1rwXL5-00FbQv-03; Mon, 15 Apr 2024 20:10:23 -0500 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=20Almeida?= , Wolfram Sang , Arkadiusz Hiler , Peter Zijlstra , Andy Lutomirski , linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Randy Dunlap , Ingo Molnar , Will Deacon , Waiman Long , Boqun Feng , Elizabeth Figura Subject: [PATCH v4 23/27] selftests: ntsync: Add tests for alertable waits. Date: Mon, 15 Apr 2024 20:08:33 -0500 Message-ID: <20240416010837.333694-24-zfigura@codeweavers.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240416010837.333694-1-zfigura@codeweavers.com> References: <20240416010837.333694-1-zfigura@codeweavers.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Test the "alert" functionality of NTSYNC_IOC_WAIT_ALL and NTSYNC_IOC_WAIT_A= NY, 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/testin= g/selftests/drivers/ntsync/ntsync.c index 5d17eff6a370..5465a16d38b3 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) }) =20 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 =3D {0}; struct timespec timeout; @@ -108,6 +108,7 @@ static int wait_objs(int fd, unsigned long request, __u= 32 count, args.objs =3D (uintptr_t)objs; args.owner =3D owner; args.index =3D 0xdeadbeef; + args.alert =3D alert; ret =3D ioctl(fd, request, &args); *index =3D args.index; return ret; @@ -115,12 +116,26 @@ static int wait_objs(int fd, unsigned long request, _= _u32 count, =20 static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u= 32 *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); } =20 static int wait_all(int fd, __u32 count, const int *objs, __u32 owner, __u= 32 *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); } =20 TEST(semaphore_state) @@ -1095,4 +1110,162 @@ TEST(wake_all) close(fd); } =20 +TEST(alert_any) +{ + struct ntsync_event_args event_args =3D {0}; + struct ntsync_sem_args sem_args =3D {0}; + __u32 index, count, signaled; + int objs[2], fd, ret; + + fd =3D open("/dev/ntsync", O_CLOEXEC | O_RDONLY); + ASSERT_LE(0, fd); + + sem_args.count =3D 0; + sem_args.max =3D 2; + sem_args.sem =3D 0xdeadbeef; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[0] =3D sem_args.sem; + + sem_args.count =3D 1; + sem_args.max =3D 2; + sem_args.sem =3D 0xdeadbeef; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[1] =3D sem_args.sem; + + event_args.manual =3D true; + event_args.signaled =3D true; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + ret =3D wait_any_alert(fd, 0, NULL, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret =3D ioctl(event_args.event, NTSYNC_IOC_EVENT_RESET, &signaled); + EXPECT_EQ(0, ret); + + ret =3D wait_any_alert(fd, 0, NULL, 123, event_args.event, &index); + EXPECT_EQ(-1, ret); + EXPECT_EQ(ETIMEDOUT, errno); + + ret =3D ioctl(event_args.event, NTSYNC_IOC_EVENT_SET, &signaled); + EXPECT_EQ(0, ret); + + ret =3D wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(1, index); + + ret =3D 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 =3D false; + event_args.signaled =3D true; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + count =3D 1; + ret =3D post_sem(objs[0], &count); + EXPECT_EQ(0, ret); + + ret =3D wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret =3D wait_any_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + ret =3D 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 =3D {0}; + struct ntsync_sem_args sem_args =3D {0}; + __u32 index, count, signaled; + int objs[2], fd, ret; + + fd =3D open("/dev/ntsync", O_CLOEXEC | O_RDONLY); + ASSERT_LE(0, fd); + + sem_args.count =3D 2; + sem_args.max =3D 2; + sem_args.sem =3D 0xdeadbeef; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[0] =3D sem_args.sem; + + sem_args.count =3D 1; + sem_args.max =3D 2; + sem_args.sem =3D 0xdeadbeef; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args); + EXPECT_EQ(0, ret); + EXPECT_NE(0xdeadbeef, sem_args.sem); + objs[1] =3D sem_args.sem; + + event_args.manual =3D true; + event_args.signaled =3D true; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + ret =3D wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret =3D 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 =3D false; + event_args.signaled =3D true; + ret =3D ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args); + EXPECT_EQ(0, ret); + + count =3D 2; + ret =3D post_sem(objs[1], &count); + EXPECT_EQ(0, ret); + + ret =3D wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(0, index); + + ret =3D wait_all_alert(fd, 2, objs, 123, event_args.event, &index); + EXPECT_EQ(0, ret); + EXPECT_EQ(2, index); + + ret =3D 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 --=20 2.43.0