236 int vpu_helper_copy_from_stream_buffer(struct vpu_buffer *stream_buffer,  in vpu_helper_copy_from_stream_buffer()  argument
244 	if (!stream_buffer || !rptr || !dst)  in vpu_helper_copy_from_stream_buffer()
251 	start = stream_buffer->phys;  in vpu_helper_copy_from_stream_buffer()
252 	end = start + stream_buffer->length;  in vpu_helper_copy_from_stream_buffer()
253 	virt = stream_buffer->virt;  in vpu_helper_copy_from_stream_buffer()
265 	*rptr = vpu_helper_step_walk(stream_buffer, offset, size);  in vpu_helper_copy_from_stream_buffer()
270 int vpu_helper_copy_to_stream_buffer(struct vpu_buffer *stream_buffer,  in vpu_helper_copy_to_stream_buffer()  argument
278 	if (!stream_buffer || !wptr || !src)  in vpu_helper_copy_to_stream_buffer()
285 	start = stream_buffer->phys;  in vpu_helper_copy_to_stream_buffer()
286 	end = start + stream_buffer->length;  in vpu_helper_copy_to_stream_buffer()
287 	virt = stream_buffer->virt;  in vpu_helper_copy_to_stream_buffer()
298 	*wptr = vpu_helper_step_walk(stream_buffer, offset, size);  in vpu_helper_copy_to_stream_buffer()
303 int vpu_helper_memset_stream_buffer(struct vpu_buffer *stream_buffer,  in vpu_helper_memset_stream_buffer()  argument
311 	if (!stream_buffer || !wptr)  in vpu_helper_memset_stream_buffer()
318 	start = stream_buffer->phys;  in vpu_helper_memset_stream_buffer()
319 	end = start + stream_buffer->length;  in vpu_helper_memset_stream_buffer()
320 	virt = stream_buffer->virt;  in vpu_helper_memset_stream_buffer()
333 		offset -= stream_buffer->length;  in vpu_helper_memset_stream_buffer()
388 int vpu_helper_find_startcode(struct vpu_buffer *stream_buffer,  in vpu_helper_find_startcode()  argument
397 	if (!stream_buffer || !stream_buffer->virt)  in vpu_helper_find_startcode()
410 		val = (val << 8) | vpu_helper_read_byte(stream_buffer, offset + i);  in vpu_helper_find_startcode()