89 int prepare_input_output_dma(void* input,  in prepare_input_output_dma()  argument
95     if (input == output && input_len != output_len) {  in prepare_input_output_dma()
100     if (input == output && input_len == output_len) {  in prepare_input_output_dma()
101         rc = prepare_dma(input, input_len, DMA_FLAG_BIDIRECTION, input_pmem);  in prepare_input_output_dma()
108         rc = prepare_dma(input, input_len, DMA_FLAG_TO_DEVICE, input_pmem);  in prepare_input_output_dma()
116             finish_dma(input, input_len, DMA_FLAG_TO_DEVICE);  // Clean DMA  in prepare_input_output_dma()
123 int finish_input_output_dma(void* input,  in finish_input_output_dma()  argument
127     if (input == output && input_len != output_len) {  in finish_input_output_dma()
131     if (input == output && input_len == output_len) {  in finish_input_output_dma()
132         return finish_dma(input, input_len, DMA_FLAG_BIDIRECTION);  in finish_input_output_dma()
134         int rc_in = finish_dma(input, input_len, DMA_FLAG_TO_DEVICE);  in finish_input_output_dma()