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selftests: ntsync: Add tests for alertable waits.

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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 <zfigura@codeweavers.com>
Link: https://lore.kernel.org/r/20241213193511.457338-26-zfigura@codeweavers.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Elizabeth Figura
2024-12-13 13:35:06 -06:00
committed by Greg Kroah-Hartman
parent a2e5a8cea7
commit dd914e0d07
1 changed files with 164 additions and 3 deletions
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167
tools/testing/selftests/drivers/ntsync/ntsync.c
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@@ -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)
@@ -1045,4 +1060,150 @@ 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], event, fd, ret;
fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
ASSERT_LE(0, fd);
sem_args.count = 0;
sem_args.max = 2;
objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_LE(0, objs[0]);
sem_args.count = 1;
sem_args.max = 2;
objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_LE(0, objs[1]);
event_args.manual = true;
event_args.signaled = true;
event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_LE(0, event);
ret = wait_any_alert(fd, 0, NULL, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);
ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
EXPECT_EQ(0, ret);
ret = wait_any_alert(fd, 0, NULL, 123, event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);
ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
EXPECT_EQ(0, ret);
ret = wait_any_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(1, index);
ret = wait_any_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);
close(event);
/* test with an auto-reset event */
event_args.manual = false;
event_args.signaled = true;
event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_LE(0, event);
count = 1;
ret = release_sem(objs[0], &count);
EXPECT_EQ(0, ret);
ret = wait_any_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);
ret = wait_any_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);
ret = wait_any_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);
close(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], event, fd, ret;
fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
ASSERT_LE(0, fd);
sem_args.count = 2;
sem_args.max = 2;
objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_LE(0, objs[0]);
sem_args.count = 1;
sem_args.max = 2;
objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_LE(0, objs[1]);
event_args.manual = true;
event_args.signaled = true;
event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_LE(0, event);
ret = wait_all_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);
ret = wait_all_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);
close(event);
/* test with an auto-reset event */
event_args.manual = false;
event_args.signaled = true;
event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_LE(0, event);
count = 2;
ret = release_sem(objs[1], &count);
EXPECT_EQ(0, ret);
ret = wait_all_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);
ret = wait_all_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);
ret = wait_all_alert(fd, 2, objs, 123, event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);
close(event);
close(objs[0]);
close(objs[1]);
close(fd);
}
TEST_HARNESS_MAIN