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igt/gem_userptr_blits: Test interruptible create-destroy

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In order to exercise https://bugs.freedesktop.org/show_bug.cgi?id=84207
we need to interrupt the mmu_notifier_register with a signal. This is
likely to be quite difficult, but let's just try running the
create-destroy test in an interruptible loop for 5s.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-09-26 10:22:33 +01:00
parent 3e766b8255
commit f2775039b1
1 changed files with 24 additions and 10 deletions
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34
tests/gem_userptr_blits.c
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@ -47,6 +47,7 @@
#include <sys/mman.h>
#include <signal.h>
#include <pthread.h>
#include <time.h>
#include "drm.h"
#include "i915_drm.h"
@ -833,19 +834,32 @@ static int test_usage_restrictions(int fd)
return 0;
}
static int test_create_destroy(int fd)
static int test_create_destroy(int fd, int time)
{
void *ptr;
int ret;
struct timespec start, now;
uint32_t handle;
void *ptr;
int n;
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
igt_fork_signal_helper();
ret = gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle);
igt_assert(ret == 0);
clock_gettime(CLOCK_MONOTONIC, &start);
do {
for (n = 0; n < 1000; n++) {
igt_assert(posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE) == 0);
gem_close(fd, handle);
free(ptr);
do_or_die(gem_userptr(fd, ptr, PAGE_SIZE, 0, &handle));
gem_close(fd, handle);
free(ptr);
}
clock_gettime(CLOCK_MONOTONIC, &now);
now.tv_sec -= time;
} while (now.tv_sec < start.tv_sec ||
(now.tv_sec == start.tv_sec && now.tv_nsec < start.tv_nsec));
igt_stop_signal_helper();
return 0;
}
@ -1264,7 +1278,7 @@ int main(int argc, char **argv)
gem_userptr_test_unsynchronized();
igt_subtest("create-destroy-unsync")
test_create_destroy(fd);
test_create_destroy(fd, 5);
igt_subtest("unsync-overlap")
test_overlap(fd, 0);
@ -1355,7 +1369,7 @@ int main(int argc, char **argv)
test_process_exit(fd, PE_GTT_MAP | PE_BUSY);
igt_subtest("create-destroy-sync")
test_create_destroy(fd);
test_create_destroy(fd, 5);
igt_subtest("sync-overlap")
test_overlap(fd, EINVAL);