David Howells wrote:
> For example, one board I've got doesn't allow you to do a straight
> memory-mapped I/O access to your PCI device directly, but have to reposition a
> window in the CPU's memory space over part of the PCI memory space first, and
> then hold a spinlock whilst you do it.
Yuck. Does that wind up making MMIO slower than PIO, on this board?
-- Jeff Garzik | "I respect faith, but doubt is Building 1024 | what gives you an education." MandrakeSoft | -- Wilson Mizner - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jul 07 2001 - 21:00:11 EST