Lines Matching refs:bounce_buffer

14 static int addr_aligned(struct bounce_buffer *state)  in addr_aligned()
34 int bounce_buffer_start(struct bounce_buffer *state, void *data,  in bounce_buffer_start()
38 	state->bounce_buffer = data;  in bounce_buffer_start()
44 		state->bounce_buffer = memalign(ARCH_DMA_MINALIGN,  in bounce_buffer_start()
46 		if (!state->bounce_buffer)  in bounce_buffer_start()
50 			memcpy(state->bounce_buffer, state->user_buffer,  in bounce_buffer_start()
58 	flush_dcache_range((unsigned long)state->bounce_buffer,  in bounce_buffer_start()
59 				(unsigned long)(state->bounce_buffer) +  in bounce_buffer_start()
65 int bounce_buffer_stop(struct bounce_buffer *state)  in bounce_buffer_stop()
69 		invalidate_dcache_range((unsigned long)state->bounce_buffer,  in bounce_buffer_stop()
70 					(unsigned long)(state->bounce_buffer) +  in bounce_buffer_stop()
74 	if (state->bounce_buffer == state->user_buffer)  in bounce_buffer_stop()
78 		memcpy(state->user_buffer, state->bounce_buffer, state->len);  in bounce_buffer_stop()
80 	free(state->bounce_buffer);  in bounce_buffer_stop()