S_DMA_HIGH_WATERMARK
#define M_DMA_HIGH_WATERMARK _SB_MAKEMASK(16, S_DMA_HIGH_WATERMARK)
#define V_DMA_HIGH_WATERMARK(x) _SB_MAKEVALUE(x, S_DMA_HIGH_WATERMARK)
#define G_DMA_HIGH_WATERMARK(x) _SB_GETVALUE(x, S_DMA_HIGH_WATERMARK, M_DMA_HIGH_WATERMARK)