Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

Andi Kleen
2007-12-07T16:31:27Z

> You don't need to. Port 0x80 historically is about 8uS so just udelay(8)
> and make sure the initial default delay is conservative enough before the

How would you make it conservative enough handling let's say a 6Ghz CPU
that can execute multiple jumps per cycle?

-Andi