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-rw-r--r--drivers/gpu/drm/drm_syncobj.c49
-rw-r--r--include/drm/drm_syncobj.h4
2 files changed, 49 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 0422b8c2c2e7..0bb174109b96 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -262,8 +262,14 @@ void drm_syncobj_free(struct kref *kref)
}
EXPORT_SYMBOL(drm_syncobj_free);
-static int drm_syncobj_create(struct drm_file *file_private,
- u32 *handle, uint32_t flags)
+/**
+ * drm_syncobj_create - create a new syncobj
+ * @out_syncobj: returned syncobj
+ * @flags: DRM_SYNCOBJ_* flags
+ * @fence: if non-NULL, the syncobj will represent this fence
+ */
+int drm_syncobj_create(struct drm_syncobj **out_syncobj, uint32_t flags,
+ struct dma_fence *fence)
{
int ret;
struct drm_syncobj *syncobj;
@@ -284,6 +290,25 @@ static int drm_syncobj_create(struct drm_file *file_private,
}
}
+ if (fence)
+ drm_syncobj_replace_fence(syncobj, fence);
+
+ *out_syncobj = syncobj;
+ return 0;
+}
+EXPORT_SYMBOL(drm_syncobj_create);
+
+/**
+ * drm_syncobj_get_handle - get a handle from a syncobj
+ */
+int drm_syncobj_get_handle(struct drm_file *file_private,
+ struct drm_syncobj *syncobj, u32 *handle)
+{
+ int ret;
+
+ /* take a reference to put in the idr */
+ drm_syncobj_get(syncobj);
+
idr_preload(GFP_KERNEL);
spin_lock(&file_private->syncobj_table_lock);
ret = idr_alloc(&file_private->syncobj_idr, syncobj, 1, 0, GFP_NOWAIT);
@@ -299,6 +324,22 @@ static int drm_syncobj_create(struct drm_file *file_private,
*handle = ret;
return 0;
}
+EXPORT_SYMBOL(drm_syncobj_get_handle);
+
+static int drm_syncobj_create_as_handle(struct drm_file *file_private,
+ u32 *handle, uint32_t flags)
+{
+ int ret;
+ struct drm_syncobj *syncobj;
+
+ ret = drm_syncobj_create(&syncobj, flags, NULL);
+ if (ret)
+ return ret;
+
+ ret = drm_syncobj_get_handle(file_private, syncobj, handle);
+ drm_syncobj_put(syncobj);
+ return ret;
+}
static int drm_syncobj_destroy(struct drm_file *file_private,
u32 handle)
@@ -522,8 +563,8 @@ drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
if (args->flags & ~DRM_SYNCOBJ_CREATE_SIGNALED)
return -EINVAL;
- return drm_syncobj_create(file_private,
- &args->handle, args->flags);
+ return drm_syncobj_create_as_handle(file_private,
+ &args->handle, args->flags);
}
int
diff --git a/include/drm/drm_syncobj.h b/include/drm/drm_syncobj.h
index c00fee539822..e7f0035bb8f8 100644
--- a/include/drm/drm_syncobj.h
+++ b/include/drm/drm_syncobj.h
@@ -136,5 +136,9 @@ int drm_syncobj_find_fence(struct drm_file *file_private,
u32 handle,
struct dma_fence **fence);
void drm_syncobj_free(struct kref *kref);
+int drm_syncobj_create(struct drm_syncobj **out_syncobj, uint32_t flags,
+ struct dma_fence *fence);
+int drm_syncobj_get_handle(struct drm_file *file_private,
+ struct drm_syncobj *syncobj, u32 *handle);
#endif

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