[uClinux-dev] NIOS2: fixing include/asm/scatterist.h

[Robert P. J. Day]

  in order to make the header file
include/asm-nios2nommu/scatterlist.h compatible with the latest
kernel, i've modified my local copy to now look like this (perhaps
thomas can sanity check it):

=====================================
#ifndef __ASM_NIOS2_SCATTERLIST_H
#define __ASM_NIOS2_SCATTERLIST_H

struct scatterlist {
ifdef CONFIG_DEBUG_SG
        unsigned long sg_magic;
#endif
        unsigned long page_link;
        unsigned int offset;
        dma_addr_t dma_address;
        unsigned int length;
};

#define ISA_DMA_THRESHOLD (0xffffffff)

#define sg_dma_address(sg)      (virt_to_bus((sg)->dma_address))
#define sg_dma_len(sg)          ((sg)->length)

#endif /* __ASM_NIOS2_SCATTERLIST_H */
====================================

  note particularly:

1) the addition of SG debugging
2) the new "unsigned long page_link" member field
3) the addition of those last two macros, which were moved here from
the header file include/asm-nios2nommu/pci.h, to be consistent with
how all the other arches do it.

  does that look remotely sane?  i'm about to test it.

rday

-- 
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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
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