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staging/android/sync: Support sync points created from dma-fences 

Debug output assumes all sync points are built on top of Android sync points
and when we start creating them from dma-fences will NULL ptr deref unless
taught about this.

v4: Corrected patch ownership.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: devel@driverdev.osuosl.org
Cc: Riley Andrews <riandrews@android.com>
Cc: Arve Hjønnevåg <arve@android.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Maarten Lankhorst 2015-12-11 13:11:49 +00:00 committed by Greg Kroah-Hartman
parent a2df4e33d7
commit 73465f1c08
1 changed files with 22 additions and 20 deletions
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42
drivers/staging/android/sync_debug.c
View File

@ -82,36 +82,42 @@ static const char *sync_status_str(int status)
return "error";
}
static void sync_print_pt(struct seq_file *s, struct sync_pt *pt, bool fence)
static void sync_print_pt(struct seq_file *s, struct fence *pt, bool fence)
{
int status = 1;
struct sync_timeline *parent = sync_pt_parent(pt);
if (fence_is_signaled_locked(&pt->base))
status = pt->base.status;
if (fence_is_signaled_locked(pt))
status = pt->status;
seq_printf(s, " %s%spt %s",
fence ? parent->name : "",
fence && pt->ops->get_timeline_name ?
pt->ops->get_timeline_name(pt) : "",
fence ? "_" : "",
sync_status_str(status));
if (status <= 0) {
struct timespec64 ts64 =
ktime_to_timespec64(pt->base.timestamp);
ktime_to_timespec64(pt->timestamp);
seq_printf(s, "@%lld.%09ld", (s64)ts64.tv_sec, ts64.tv_nsec);
}
if (parent->ops->timeline_value_str &&
parent->ops->pt_value_str) {
if ((!fence || pt->ops->timeline_value_str) &&
pt->ops->fence_value_str) {
char value[64];
bool success;
parent->ops->pt_value_str(pt, value, sizeof(value));
seq_printf(s, ": %s", value);
if (fence) {
parent->ops->timeline_value_str(parent, value,
sizeof(value));
seq_printf(s, " / %s", value);
pt->ops->fence_value_str(pt, value, sizeof(value));
success = strlen(value);
if (success)
seq_printf(s, ": %s", value);
if (success && fence) {
pt->ops->timeline_value_str(pt, value, sizeof(value));
if (strlen(value))
seq_printf(s, " / %s", value);
}
}
@ -138,7 +144,7 @@ static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
list_for_each(pos, &obj->child_list_head) {
struct sync_pt *pt =
container_of(pos, struct sync_pt, child_list);
sync_print_pt(s, pt, false);
sync_print_pt(s, &pt->base, false);
}
spin_unlock_irqrestore(&obj->child_list_lock, flags);
}
@ -153,11 +159,7 @@ static void sync_print_fence(struct seq_file *s, struct sync_fence *fence)
sync_status_str(atomic_read(&fence->status)));
for (i = 0; i < fence->num_fences; ++i) {
struct sync_pt *pt =
container_of(fence->cbs[i].sync_pt,
struct sync_pt, base);
sync_print_pt(s, pt, true);
sync_print_pt(s, fence->cbs[i].sync_pt, true);
}
spin_lock_irqsave(&fence->wq.lock, flags);