Contributors: 13
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Erik Gilling |
225 |
44.29% |
2 |
7.69% |
| Maarten Lankhorst |
169 |
33.27% |
3 |
11.54% |
| Gustavo Padovan |
59 |
11.61% |
7 |
26.92% |
| Chris Wilson |
21 |
4.13% |
5 |
19.23% |
| Tapasweni Pathak |
10 |
1.97% |
1 |
3.85% |
| Christian König |
5 |
0.98% |
1 |
3.85% |
| SF Markus Elfring |
4 |
0.79% |
1 |
3.85% |
| Yangtao Li |
4 |
0.79% |
1 |
3.85% |
| Tetsuo Handa |
3 |
0.59% |
1 |
3.85% |
| Nicolai Stange |
3 |
0.59% |
1 |
3.85% |
| Hema Prathaban |
2 |
0.39% |
1 |
3.85% |
| Thomas Gleixner |
2 |
0.39% |
1 |
3.85% |
| Peter Senna Tschudin |
1 |
0.20% |
1 |
3.85% |
| Total |
508 |
|
26 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Sync File validation framework and debug information
*
* Copyright (C) 2012 Google, Inc.
*/
#include <linux/debugfs.h>
#include "sync_debug.h"
static struct dentry *dbgfs;
static LIST_HEAD(sync_timeline_list_head);
static DEFINE_SPINLOCK(sync_timeline_list_lock);
void sync_timeline_debug_add(struct sync_timeline *obj)
{
unsigned long flags;
spin_lock_irqsave(&sync_timeline_list_lock, flags);
list_add_tail(&obj->sync_timeline_list, &sync_timeline_list_head);
spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
}
void sync_timeline_debug_remove(struct sync_timeline *obj)
{
unsigned long flags;
spin_lock_irqsave(&sync_timeline_list_lock, flags);
list_del(&obj->sync_timeline_list);
spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
}
static const char *sync_status_str(int status)
{
if (status < 0)
return "error";
if (status > 0)
return "signaled";
return "active";
}
static void sync_print_fence(struct seq_file *s,
struct dma_fence *fence, bool show)
{
struct sync_timeline *parent = dma_fence_parent(fence);
int status;
status = dma_fence_get_status_locked(fence);
seq_printf(s, " %s%sfence %s",
show ? parent->name : "",
show ? "_" : "",
sync_status_str(status));
if (test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags)) {
struct timespec64 ts64 =
ktime_to_timespec64(fence->timestamp);
seq_printf(s, "@%lld.%09ld", (s64)ts64.tv_sec, ts64.tv_nsec);
}
seq_printf(s, ": %lld", fence->seqno);
seq_printf(s, " / %d", parent->value);
seq_putc(s, '\n');
}
static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
{
struct list_head *pos;
seq_printf(s, "%s: %d\n", obj->name, obj->value);
spin_lock(&obj->lock); /* Caller already disabled IRQ. */
list_for_each(pos, &obj->pt_list) {
struct sync_pt *pt = container_of(pos, struct sync_pt, link);
sync_print_fence(s, &pt->base, false);
}
spin_unlock(&obj->lock);
}
static int sync_info_debugfs_show(struct seq_file *s, void *unused)
{
struct list_head *pos;
seq_puts(s, "objs:\n--------------\n");
spin_lock_irq(&sync_timeline_list_lock);
list_for_each(pos, &sync_timeline_list_head) {
struct sync_timeline *obj =
container_of(pos, struct sync_timeline,
sync_timeline_list);
sync_print_obj(s, obj);
seq_putc(s, '\n');
}
spin_unlock_irq(&sync_timeline_list_lock);
seq_puts(s, "fences:\n--------------\n");
return 0;
}
DEFINE_SHOW_ATTRIBUTE(sync_info_debugfs);
static __init int sync_debugfs_init(void)
{
dbgfs = debugfs_create_dir("sync", NULL);
/*
* The debugfs files won't ever get removed and thus, there is
* no need to protect it against removal races. The use of
* debugfs_create_file_unsafe() is actually safe here.
*/
debugfs_create_file_unsafe("info", 0444, dbgfs, NULL,
&sync_info_debugfs_fops);
debugfs_create_file_unsafe("sw_sync", 0644, dbgfs, NULL,
&sw_sync_debugfs_fops);
return 0;
}
late_initcall(sync_debugfs_init);