ARCH_ZONE_DMA_BITS 264 arch/powerpc/mm/mem.c 1UL << (ARCH_ZONE_DMA_BITS - PAGE_SHIFT)); ARCH_ZONE_DMA_BITS 22 kernel/dma/direct.c #ifndef ARCH_ZONE_DMA_BITS ARCH_ZONE_DMA_BITS 73 kernel/dma/direct.c if (*phys_mask <= DMA_BIT_MASK(ARCH_ZONE_DMA_BITS)) ARCH_ZONE_DMA_BITS 399 kernel/dma/direct.c min_mask = DMA_BIT_MASK(ARCH_ZONE_DMA_BITS);