Modify sync_fence_create to accept a 'struct fence' instead of
'struct sync_pt'. This will allow drm drivers to create sync_fence
objects and pass sync fd's between user space with minimal modifications,
without ever creating sync_timeline or sync_pt objects, and without
implementing the sync_timeline_ops interface.
Modify the sync driver debug code to not assume that every 'struct fence'
(that is associated with a 'struct sync_fence') is embedded within a
'struct sync_pt'.
Signed-off-by: Lauri Peltonen <lpelto...@nvidia.com>
---
drivers/staging/android/sw_sync.c | 2 +-
drivers/staging/android/sync.c | 10 ++++-----
drivers/staging/android/sync.h | 6 +++---
drivers/staging/android/sync_debug.c | 40 ++++++++++++++++--------------------
4 files changed, 27 insertions(+), 31 deletions(-)
diff --git a/drivers/staging/android/sw_sync.c
b/drivers/staging/android/sw_sync.c
index c90838d36953..bec8039df6f2 100644
--- a/drivers/staging/android/sw_sync.c
+++ b/drivers/staging/android/sw_sync.c
@@ -185,7 +185,7 @@ static long sw_sync_ioctl_create_fence(struct
sw_sync_timeline *obj,
}
data.name[sizeof(data.name) - 1] = '\0';
- fence = sync_fence_create(data.name, pt);
+ fence = sync_fence_create(data.name, &pt->base);
if (fence == NULL) {
sync_pt_free(pt);
err = -ENOMEM;
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index f83e00c78051..11e6944922e0 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -187,8 +187,8 @@ static void fence_check_cb_func(struct fence *f, struct
fence_cb *cb)
wake_up_all(&fence->wq);
}
-/* TODO: implement a create which takes more that one sync_pt */
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt)
+/* TODO: implement a create which takes more that one pt */
+struct sync_fence *sync_fence_create(const char *name, struct fence *pt)
{
struct sync_fence *fence;
@@ -199,10 +199,10 @@ struct sync_fence *sync_fence_create(const char *name,
struct sync_pt *pt)
fence->num_fences = 1;
atomic_set(&fence->status, 1);
- fence->cbs[0].sync_pt = &pt->base;
+ fence->cbs[0].sync_pt = pt;
fence->cbs[0].fence = fence;
- if (fence_add_callback(&pt->base, &fence->cbs[0].cb,
- fence_check_cb_func))
+ if (fence_add_callback(pt, &fence->cbs[0].cb,
+ fence_check_cb_func))
atomic_dec(&fence->status);
sync_fence_debug_add(fence);
diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h
index a21b79fb4c8e..af0daa65bfa9 100644
--- a/drivers/staging/android/sync.h
+++ b/drivers/staging/android/sync.h
@@ -246,13 +246,13 @@ void sync_pt_free(struct sync_pt *pt);
/**
* sync_fence_create() - creates a sync fence
- * @name: name of fence to create
- * @pt: sync_pt to add to the fence
+ * @name: name of sync fence to create
+ * @pt: fence to add to the sync fence
*
* Creates a fence containg @pt. Once this is called, the fence takes
* ownership of @pt.
*/
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt);
+struct sync_fence *sync_fence_create(const char *name, struct fence *pt);
/*
* API for sync_fence consumers
diff --git a/drivers/staging/android/sync_debug.c
b/drivers/staging/android/sync_debug.c
index 91ed2c4cff45..5e0860ebf7b5 100644
--- a/drivers/staging/android/sync_debug.c
+++ b/drivers/staging/android/sync_debug.c
@@ -82,34 +82,34 @@ 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 ? "_" : "",
- sync_status_str(status));
+ if (fence)
+ seq_printf(s, " %d_pt %s", pt->context,
+ sync_status_str(status));
+ else
+ seq_printf(s, " pt %s", 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 (pt->ops->timeline_value_str &&
+ pt->ops->fence_value_str) {
char value[64];
- parent->ops->pt_value_str(pt, value, sizeof(value));
+ pt->ops->fence_value_str(pt, value, sizeof(value));
seq_printf(s, ": %s", value);
if (fence) {
- parent->ops->timeline_value_str(parent, value,
+ pt->ops->timeline_value_str(pt, value,
sizeof(value));
seq_printf(s, " / %s", value);
}
@@ -123,7 +123,8 @@ static void sync_print_obj(struct seq_file *s, struct
sync_timeline *obj)
struct list_head *pos;
unsigned long flags;
- seq_printf(s, "%s %s", obj->name, obj->ops->driver_name);
+ seq_printf(s, "%d %s %s", obj->context, obj->name,
+ obj->ops->driver_name);
if (obj->ops->timeline_value_str) {
char value[64];
@@ -138,7 +139,7 @@ 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);
}
@@ -152,13 +153,8 @@ static void sync_print_fence(struct seq_file *s, struct
sync_fence *fence)
seq_printf(s, "[%p] %s: %s\n", fence, fence->name,
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);
- }
+ for (i = 0; i < fence->num_fences; ++i)
+ sync_print_pt(s, fence->cbs[i].sync_pt, true);
spin_lock_irqsave(&fence->wq.lock, flags);
list_for_each_entry(pos, &fence->wq.task_list, task_list) {
--
2.1.4
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