1 #ifndef _ASM_IA64_SCATTERLIST_H
2 #define _ASM_IA64_SCATTERLIST_H
5 * Modified 1998-1999, 2001-2002, 2004
6 * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
12 unsigned int length; /* buffer length */
14 dma_addr_t dma_address;
15 unsigned int dma_length;
19 * It used to be that ISA_DMA_THRESHOLD had something to do with the
20 * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart
21 * from the aha1542.c driver, which isn't 64-bit clean anyhow) is to
22 * tell the block-layer (via BLK_BOUNCE_ISA) what the max. physical
23 * address of a page is that is allocated with GFP_DMA. On IA-64,
26 #define ISA_DMA_THRESHOLD 0xffffffff
28 #endif /* _ASM_IA64_SCATTERLIST_H */