Hi, > > Currently, the only architectures that don't set HAS_DMA are h8300, m32r > > m68k (except SUN3 and Coldfire), microblaze and s390. > > s390 will never get it, microblaze is currently implementing dma-mapping.h. > > > > The other three are still using drivers/ide instead of drivers/ata. > > > > One way to fix this would be to implement dma-mapping.h in h8300, m32r and > > m68k and leave !HAS_DMA as the obscure s390 case (this one already can't > > use ATA because of !HAS_MMIO). > > If I'm reading the m68k code correctly, SUN3 is the one that doesn't have > DMA. It is implemented on any m68k with a standard Motorola MMU. It might > be possible to get the DMA code working on a sun3, but I doubt they ever > have IDE hardware. The Atari IDE interface does not use DMA. I don't see what addition of DMA mapping for IDE would achieve. If it doesn't interfere with plain PIO mode, fine. Michael -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
