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authorHans Verkuil <hans.verkuil@cisco.com>2014-01-29 11:53:25 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-03-11 06:56:37 -0300
commitb5b4541eef8eac83f5c0d166d8e494f7c9fff202 (patch)
treef4bc458dfff48a3bd2236f235fa3249c356e2db8 /include/media/videobuf2-core.h
parent952c9ee2900de152c4999d94da5c4bd846ae52e8 (diff)
[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.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index bf6859ee46c3..2fdb08a78b95 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);

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