Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80I/O delay override.

[H. Peter Anvin]

Zachary Amsden wrote:
> I'm speaking specifically in terms of 64-bit platforms here.  Shouldn't
> we unconditionally drop outb_p doing extra port I/O on 64-bit
> architectures?  Especially considering they don't even have an ISA bus
> where the decode timing could even matter?

Why should the bitsize of the CPU matter for this?  It seems one of the 
less meaningful keys for this.

Second, as I have mentioned, I don't believe this is really the case, 
especially not for the PIT, which is still present -- the PIT 
*semantics* has explicit timing constraints.

Third, you still have ISA devices, they're just called LPC or PC104 
devices these days.

	-hpa
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