DMA1_MASK_REG     169 arch/x86/include/asm/dma.h 		dma_outb(dmanr, DMA1_MASK_REG);
DMA1_MASK_REG     177 arch/x86/include/asm/dma.h 		dma_outb(dmanr | 4, DMA1_MASK_REG);