[parisc-linux] Dino PCI and I/O spaces

[Matthew Wilcox]

On Mon, Jun 14, 1999 at 04:15:08PM +0100, Alan Cox wrote:
> Also as a btw: PCI I/O port access will suck rocks on HP because we have
> to grab a lock since it is a two stage operation. That may mean we want
> to write smart copy/csum/io and ins* functions for PCI block I/O.

Do we only have to grab a lock on SMP machines, or can we sleep between
the two accesses?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson