static void wedge_gpu(int fd)
{
/* First idle the GPU then disable GPU resets before injecting a hang */
gem_quiescent_gpu(fd);
igt_require(i915_reset_control(false));
igt_debug("Wedging GPU by injecting hang\n");
igt_post_hang_ring(fd, igt_hang_ring(fd, I915_EXEC_DEFAULT));
igt_assert(i915_reset_control(true));
}
static void test_wait(int fd)
{
igt_hang_ring_t hang;
/* If the request we wait on completes due to a hang (even for
* that request), the user expects the return value to 0 (success).
*/
hang = igt_hang_ring(fd, I915_EXEC_DEFAULT);
igt_assert_eq(__gem_wait(fd, hang.handle, -1), 0);
igt_post_hang_ring(fd, hang);
/* If the GPU is wedged during the wait, again we expect the return
* value to be 0 (success).
*/
igt_require(i915_reset_control(false));
hang = igt_hang_ring(fd, I915_EXEC_DEFAULT);
igt_assert_eq(__gem_wait(fd, hang.handle, -1), 0);
igt_post_hang_ring(fd, hang);
igt_require(i915_reset_control(true));
trigger_reset(fd);
}
static void test_hang_gpu(void)
{
int fd = drm_open_driver(DRIVER_INTEL);
igt_post_hang_ring(fd, igt_hang_ring(fd, I915_EXEC_DEFAULT));
close(fd);
}
