static igt_pipe_crc_t *
pipe_crc_new(enum pipe pipe, enum intel_pipe_crc_source source, int flags)
{
igt_pipe_crc_t *pipe_crc;
char buf[128];
igt_install_exit_handler(pipe_crc_exit_handler);
pipe_crc = calloc(1, sizeof(struct _igt_pipe_crc));
pipe_crc->ctl_fd = igt_debugfs_open("i915_display_crc_ctl", O_WRONLY);
igt_assert(pipe_crc->ctl_fd != -1);
sprintf(buf, "i915_pipe_%s_crc", kmstest_pipe_name(pipe));
pipe_crc->crc_fd = igt_debugfs_open(buf, flags);
igt_assert(pipe_crc->crc_fd != -1);
pipe_crc->line_len = PIPE_CRC_LINE_LEN;
pipe_crc->buffer_len = PIPE_CRC_BUFFER_LEN;
pipe_crc->pipe = pipe;
pipe_crc->source = source;
pipe_crc->flags = flags;
return pipe_crc;
}
static void set_termio_mode(void)
{
struct termios tio;
/* don't attempt to set terminal attributes if not in the foreground
* process group */
if (getpgrp() != tcgetpgrp(STDOUT_FILENO))
return;
tio_fd = dup(STDIN_FILENO);
tcgetattr(tio_fd, &saved_tio);
igt_install_exit_handler(restore_termio_mode);
tio = saved_tio;
tio.c_lflag &= ~(ICANON | ECHO);
tcsetattr(tio_fd, TCSANOW, &tio);
}
/**
* igt_disable_prefault:
*
* Disable prefaulting in certain gem ioctls through the debugfs interface. As
* usual this installs an exit handler to clean up and re-enable prefaulting
* even when the test exited abnormally.
*
* igt_enable_prefault() will enable normale operation again.
*/
void igt_disable_prefault(void)
{
igt_prefault_control(false);
igt_install_exit_handler(enable_prefault_at_exit);
}
