diff options
| -rw-r--r-- | drivers/staging/android/sync.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index 7fccfcdd9772..d54fa8dd5341 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -31,6 +31,7 @@ static void sync_fence_signal_pt(struct sync_pt *pt); static int _sync_pt_has_signaled(struct sync_pt *pt); static void sync_fence_free(struct kref *kref); +static void sync_dump(void); static LIST_HEAD(sync_timeline_list_head); static DEFINE_SPINLOCK(sync_timeline_list_lock); @@ -574,8 +575,10 @@ int sync_fence_wait(struct sync_fence *fence, long timeout) if (fence->status < 0) return fence->status; - if (fence->status == 0) + if (fence->status == 0) { + sync_dump(); return -ETIME; + } return 0; } @@ -914,7 +917,34 @@ static __init int sync_debugfs_init(void) debugfs_create_file("sync", S_IRUGO, NULL, NULL, &sync_debugfs_fops); return 0; } - late_initcall(sync_debugfs_init); +#define DUMP_CHUNK 256 +static char sync_dump_buf[64 * 1024]; +void sync_dump(void) +{ + struct seq_file s = { + .buf = sync_dump_buf, + .size = sizeof(sync_dump_buf) - 1, + }; + int i; + + sync_debugfs_show(&s, NULL); + + for (i = 0; i < s.count; i += DUMP_CHUNK) { + if ((s.count - i) > DUMP_CHUNK) { + char c = s.buf[i + DUMP_CHUNK]; + s.buf[i + DUMP_CHUNK] = 0; + pr_cont("%s", s.buf + i); + s.buf[i + DUMP_CHUNK] = c; + } else { + s.buf[s.count] = 0; + pr_cont("%s", s.buf + i); + } + } +} +#else +static void sync_dump(void) +{ +} #endif |