* bigmem in 2.2.17
@ 2001-06-20 17:23 matt.vinall
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From: matt.vinall @ 2001-06-20 17:23 UTC (permalink / raw)
To: linux-kernel; +Cc: mjv94
Hi All,
I'm trying to write a driver for a PCI card and would like to use the
bigmem patch. My development system is running 2.2.17-21mdk (Mandrake
7.2), but as soon as I make a call to kmap() I get unresolved symbols
bigmem_start, kmap_prot and kmap_pte. They ARE in System.map, but not
/proc/ksyms and, indeed, there doesn't seem to be any EXPORT_SYMBOL
directive for them in kernel/ksyms.c. I'm guessing there's something else
I need to do but don't know what. Any ideas??
Also, does GFP_BIGMEM give me physical contiguous pages, suitable for
DMA by a PCI card? I know of GFP_DMA, but wondered if that was really
intended for ISA cards.
TIA
Matt
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