At Mon, 23 Oct 2000 08:33:04 EDT, "Christopher Harrer" wrote:
> Hello All,
>
> We're working on a driver for a PCI card, we're currently running into a
> problem that's symptomatic of a cache coherency problem. We have a area of
> memory that we manipulate and pass a physical address to our card. In other
> OS's (Linux, NT), before we manipulate this memory area, we mark the area as
> non-cachable. Are there similar operations/system calls we can use in
> FreeBSD? Are there any FAQ's, Docs or man-pages that explain memory
> usage/attributes?
See (in 4-Stabel and current)
/usr/include/sys/memrange.h
which has functions for setting
memory regions uncachable.
/Johan K
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