Re: 3c59x
From: Jeff Garzik <hidden>
Date: 2003-06-10 17:25:56
On Tue, Jun 10, 2003 at 10:14:52AM -0700, David S. Miller wrote:
From: Jeff Garzik [off-list ref] Date: Tue, 10 Jun 2003 13:16:17 -0400 On Tue, Jun 10, 2003 at 10:02:09AM -0700, David S. Miller wrote: > This means end users don't see the benefit, so I definitely > prefer Andi's idea. Making every IO a conditional branch? Ug. A PIO costs hundreds if not thousands of instructions! Come on Jeff, get real :-)
MMIO isn't as bad as PIO, and the 'runtime choice' setup implies slowing down the MMIO path, too. Jeff