| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_IA64_SCATTERLIST_H |
| 2 | #define _ASM_IA64_SCATTERLIST_H |
| 3 | |
| FUJITA Tomonori | 1ef0437 | 2010-05-26 14:44:34 -0700 | [diff] [blame] | 4 | #include <asm-generic/scatterlist.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | /* |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * It used to be that ISA_DMA_THRESHOLD had something to do with the |
| 7 | * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart |
| 8 | * from the aha1542.c driver, which isn't 64-bit clean anyhow) is to |
| 9 | * tell the block-layer (via BLK_BOUNCE_ISA) what the max. physical |
| 10 | * address of a page is that is allocated with GFP_DMA. On IA-64, |
| 11 | * that's 4GB - 1. |
| 12 | */ |
| 13 | #define ISA_DMA_THRESHOLD 0xffffffff |
| FUJITA Tomonori | 1ef0437 | 2010-05-26 14:44:34 -0700 | [diff] [blame] | 14 | #define ARCH_HAS_SG_CHAIN |
| Jens Axboe | 9b6eccf | 2007-10-16 11:27:26 +0200 | [diff] [blame] | 15 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #endif /* _ASM_IA64_SCATTERLIST_H */ |