Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64with MCP51 laptops

From: Alan Cox
Date: Thu Dec 13 2007 - 08:28:58 EST


On Thu, 13 Dec 2007 08:13:29 -0500
"David P. Reed" <dpreed@xxxxxxxx> wrote:

> Perhaps what was meant is that ISA-tuned timings make little sense on
> devices that are part of the chipset or on the PCI or PCI-X buses?

No.

ISA as LPC bus is alive and well inside and outside chipsets. Welcome to
planet earth and the reality of 'its cheaper to reuse cells than design a
new one'. For the chipset logic like DMA controllers the _p is absolutely
correct.

Alan
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