lkml.org 
[lkml]   [2015]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] x86: Bypass legacy PIC and PIT on ACPI hardware reduced platform
From
Date
On Wed, 2015-03-04 at 15:05 +0100, Borislav Petkov wrote:
> On Wed, Mar 04, 2015 at 03:16:07PM +0100, Rafael J. Wysocki wrote:
> > Sort of. What we need is a "do not touch PIC/PIT" bit for the code that
> > tries to fall back to them in some cases (which may appear to work if
> > the hardware is physically there, but it may confuse the platform).
>
> Can "some cases" detection be nicely put into a x86_platform
> platform-specific method?

In some cases they don't belong in x86, ACPI is also used for ARM64.

However

if ( has_8259_pic() )

is trivally 0, 1 or some platform or acpi provided method.




\
 
 \ /
  Last update: 2015-03-04 21:41    [W:0.100 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site