On Mon, 21 Jan 2002, Gerald Champagne wrote:
> - blk_rq_map_sg() is called to build a list of blocks to be transferred.
> It sets address = NULL for every entry (other fields like "page" are
> set to valid values).
> - dma_cache_wback_inv(addr, size) is called for each block entry. This
> routine crashes because the address parameter is always set to zero
> when the routine is called.
> I see that this is part of the new bio code recently added. Should I expect
> this code to work, or is it not yet working for the mips platform?
I've encountered a similar problem on O2. You can probably fix it by
adding the code for handling pages in
pci_map_sg/pci_unmap_sg/pci_sync_sg. This is what I've done for ip32 and
unsigned long address;
address = sg->address;
address = page_address(sg->page) + sg->offset;