lkml.org 
[lkml]   [2018]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 2/4] x86/amd_nb: add support for newer PCI topologies
From
Date
On 11/7/18 1:18 AM, Borislav Petkov wrote:
> On Tue, Nov 06, 2018 at 05:20:41PM -0600, Bjorn Helgaas wrote:
>> Or maybe even drivers/acpi/thermal.c, which claims every Thermal Zone
>> (ACPI 6.2, sec 11), would be sufficient. I don't know what the
>> relationship between hwmon and other thermal stuff, e.g.,
>> Documentation/thermal/sysfs-api.txt is. acpi/thermal.c looks tied
>> into the drivers/thermal stuff (it registers "thermal_zone" devices),
>> but not to hwmon.
>
> Err, I still don't think I'm catching your drift but let me stop you
> right there: amd_nb is not there only for hwmon/k10temp. It is a small
> interface glue if you will, which exports the CPU functionality in PCI
> config space to other consumers.
>

Also, thermal and hwmon are orthogonal, just like hwmon and iio. One would
typically have a driver in one subsystem, in some cases bridging to the
other subsystem, but one would not have drivers in both subsystems.
I think Bjorn is suggesting that the k10temp driver should move to the
thermal subsystem, though I don't really understand what that has to do
with finding the correct PCI device(s) to query. Or maybe I misunderstand.

Guenter

> So it is not really a driver - it is used by drivers to talk/query CPU
> settings through it.
>
> With that said, I don't think I understand all that talk about PNP IDs
> and ACPI methods. But maybe I'm missing something...
>
> So what's up?
>

\
 
 \ /
  Last update: 2018-11-07 14:51    [W:0.151 / U:0.304 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site