Re: [PATCH] x86: define outb_pic and inb_pic to stop using outb_pand inb_p

From: Ingo Molnar
Date: Tue Feb 19 2008 - 04:43:35 EST



* David P. Reed <dpreed@xxxxxxxx> wrote:

> x86: define outb_pic and inb_pic to stop using outb_p and inb_p
>
> The delay between io port accesses to the PIC is now defined using
> outb_pic and inb_pic. This fix provides the next step, using
> udelay(2) to define the *PIC specific* timing requirements, rather
> than on bus-oriented timing, which is not well calibrated.

thanks David, applied.

minor nit:

> + /* delay for some accesses to PIC on motherboard or in chipset must be
> + at least one microsecond, but be safe here. */

i changed this to the standard multi-line comment style of:

> + /*
> + * Delay for some accesses to PIC on motherboard or in chipset
> + * must be at least one microsecond, but be safe here:
> + */

Ingo
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