scatterlist.h 548 B

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  1. #ifndef _ASM_IA64_SCATTERLIST_H
  2. #define _ASM_IA64_SCATTERLIST_H
  3. /*
  4. * It used to be that ISA_DMA_THRESHOLD had something to do with the
  5. * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart
  6. * from the aha1542.c driver, which isn't 64-bit clean anyhow) is to
  7. * tell the block-layer (via BLK_BOUNCE_ISA) what the max. physical
  8. * address of a page is that is allocated with GFP_DMA. On IA-64,
  9. * that's 4GB - 1.
  10. */
  11. #define ISA_DMA_THRESHOLD 0xffffffff
  12. #include <asm-generic/scatterlist.h>
  13. #endif /* _ASM_IA64_SCATTERLIST_H */