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author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-01-29 14:53:25 (GMT) |
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committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-11 09:56:37 (GMT) |
commit | b5b4541eef8eac83f5c0d166d8e494f7c9fff202 (patch) | |
tree | f4bc458dfff48a3bd2236f235fa3249c356e2db8 /include/media/videobuf2-core.h | |
parent | 952c9ee2900de152c4999d94da5c4bd846ae52e8 (diff) | |
download | linux-b5b4541eef8eac83f5c0d166d8e494f7c9fff202.tar.xz |
[media] vb2: add debugging code to check for unbalanced ops
When a vb2_queue is freed check if all the mem_ops and queue ops were balanced.
So the number of calls to e.g. buf_finish has to match the number of calls to
buf_prepare, etc.
This code is only enabled if CONFIG_VIDEO_ADV_DEBUG is set.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'include/media/videobuf2-core.h')
-rw-r--r-- | include/media/videobuf2-core.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index bf6859e..2fdb08a 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -203,6 +203,37 @@ struct vb2_buffer { struct list_head done_entry; struct vb2_plane planes[VIDEO_MAX_PLANES]; + +#ifdef CONFIG_VIDEO_ADV_DEBUG + /* + * Counters for how often these buffer-related ops are + * called. Used to check for unbalanced ops. + */ + u32 cnt_mem_alloc; + u32 cnt_mem_put; + u32 cnt_mem_get_dmabuf; + u32 cnt_mem_get_userptr; + u32 cnt_mem_put_userptr; + u32 cnt_mem_prepare; + u32 cnt_mem_finish; + u32 cnt_mem_attach_dmabuf; + u32 cnt_mem_detach_dmabuf; + u32 cnt_mem_map_dmabuf; + u32 cnt_mem_unmap_dmabuf; + u32 cnt_mem_vaddr; + u32 cnt_mem_cookie; + u32 cnt_mem_num_users; + u32 cnt_mem_mmap; + + u32 cnt_buf_init; + u32 cnt_buf_prepare; + u32 cnt_buf_finish; + u32 cnt_buf_cleanup; + u32 cnt_buf_queue; + + /* This counts the number of calls to vb2_buffer_done() */ + u32 cnt_buf_done; +#endif }; /** @@ -366,6 +397,18 @@ struct vb2_queue { unsigned int retry_start_streaming:1; struct vb2_fileio_data *fileio; + +#ifdef CONFIG_VIDEO_ADV_DEBUG + /* + * Counters for how often these queue-related ops are + * called. Used to check for unbalanced ops. + */ + u32 cnt_queue_setup; + u32 cnt_wait_prepare; + u32 cnt_wait_finish; + u32 cnt_start_streaming; + u32 cnt_stop_streaming; +#endif }; void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no); |