diff options
| -rw-r--r-- | lib/igt_debugfs.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/igt_debugfs.c b/lib/igt_debugfs.c index 8b33b478..a7f01d0e 100644 --- a/lib/igt_debugfs.c +++ b/lib/igt_debugfs.c @@ -584,9 +584,15 @@ void igt_require_pipe_crc(int fd) { const char *cmd = "pipe A none"; int ctl, written; + int dir, ret; + struct stat stat; + + dir = igt_debugfs_dir(fd); + igt_require_f(dir >= 0, "Could not open debugfs directory\n"); + ret = fstatat(dir, "crtc-0/crc/control", &stat, 0); + close(dir); - ctl = igt_debugfs_open(fd, "crtc-0/crc/control", O_RDONLY); - if (ctl < 0) { + if (ret < 0) { ctl = igt_debugfs_open(fd, "i915_display_crc_ctl", O_WRONLY); igt_require_f(ctl, "No display_crc_ctl found, kernel too old\n"); @@ -594,8 +600,8 @@ void igt_require_pipe_crc(int fd) written = write(ctl, cmd, strlen(cmd)); igt_require_f(written < 0, "CRCs not supported on this platform\n"); + close(ctl); } - close(ctl); } static void igt_hpd_storm_exit_handler(int sig) |