Messages in this thread |  | | Date | Fri, 14 Dec 2007 14:13:46 -0800 | | From | "H. Peter Anvin" <> | | Subject | Re: [PATCH] x86_64: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc. |
| |
Pavel Machek wrote: > On Fri 2007-12-14 10:02:57, H. Peter Anvin wrote: >> Ingo Molnar wrote: >>> wow, cool fix! (I remember that there were other systems as well that are >>> affected by port 0x80 muckery - i thought we had removed port 0x80 >>> accesses long ago.) >>> how about the simpler fix below, as a first-level approach? We can then >>> remove the _p in/out sequences after this. >> I believe this will suffer from the issue that was raised: this will use >> udelay() long before loop calibration (and no, we can't just "be >> conservative" since there is no "conservative" value we can use.) > > ?? Just initialize bogomips to 6GHz equivalent... and we are fine > until 6GHz cpus come out.
How long will that take to boot on a 386?
-hpa
|  |