From: Borislav Petkov <bp@alien8.de>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Gopalakrishnan, Aravind" <Aravind.Gopalakrishnan@amd.com>,
"rjw@sisk.pl" <rjw@sisk.pl>, Andre Przywara <andre@andrep.de>,
"cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andreas <linuxuser330250@gmx.net>
Subject: Re: [PATCH] drivers/cpufreq: Warn user when powernow-k8 tries to fall back to acpi-cpufreq and it is unavailable.
Date: Fri, 18 Jan 2013 20:00:21 +0100 [thread overview]
Message-ID: <20130118190021.GD4062@pd.tnic> (raw)
In-Reply-To: <20130118170755.GB4062@pd.tnic>
On Fri, Jan 18, 2013 at 06:07:55PM +0100, Borislav Petkov wrote:
> > Just flip the link order? It's only the way it is because in the
> > past we wanted to try hardware-specific drivers before more generic
> > ones, and I don't think that's a concern in this case now.
>
> Yeah, I heard that the acpi-idle and intel-idle drivers do that and also
> heard that it was a hack. It doesn't look too ugly IMHO:
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2671717265ae6e720a9ba5f13fbec3a718983b65
Haha, this turns into one of those chicken-or-the-egg problems:
From <drivers/cpufreq/Makefile>:
##################################################################################
# x86 drivers.
# Link order matters. K8 is preferred to ACPI because of firmware bugs in early
# K8 systems.
...
Great. :(
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Gopalakrishnan, Aravind" <Aravind.Gopalakrishnan@amd.com>,
"rjw@sisk.pl" <rjw@sisk.pl>, Andre Przywara <andre@andrep.de>,
"cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andreas <linuxuser330250@gmx.net>
Subject: Re: [PATCH] drivers/cpufreq: Warn user when powernow-k8 tries to fall back to acpi-cpufreq and it is unavailable.
Date: Fri, 18 Jan 2013 20:00:21 +0100 [thread overview]
Message-ID: <20130118190021.GD4062@pd.tnic> (raw)
In-Reply-To: <20130118170755.GB4062@pd.tnic>
On Fri, Jan 18, 2013 at 06:07:55PM +0100, Borislav Petkov wrote:
> > Just flip the link order? It's only the way it is because in the
> > past we wanted to try hardware-specific drivers before more generic
> > ones, and I don't think that's a concern in this case now.
>
> Yeah, I heard that the acpi-idle and intel-idle drivers do that and also
> heard that it was a hack. It doesn't look too ugly IMHO:
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2671717265ae6e720a9ba5f13fbec3a718983b65
Haha, this turns into one of those chicken-or-the-egg problems:
>From <drivers/cpufreq/Makefile>:
##################################################################################
# x86 drivers.
# Link order matters. K8 is preferred to ACPI because of firmware bugs in early
# K8 systems.
...
Great. :(
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2013-01-18 19:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-10 1:09 [PATCH] drivers/cpufreq: Warn user when powernow-k8 tries to fall back to acpi-cpufreq and it is unavailable Aravind Gopalakrishnan
2013-01-10 1:09 ` Aravind Gopalakrishnan
2013-01-11 14:49 ` Borislav Petkov
2013-01-11 16:50 ` Borislav Petkov
2013-01-11 17:39 ` Gopalakrishnan, Aravind
2013-01-11 17:39 ` Gopalakrishnan, Aravind
2013-01-11 19:03 ` Gopalakrishnan, Aravind
2013-01-11 19:03 ` Gopalakrishnan, Aravind
2013-01-17 11:54 ` Borislav Petkov
2013-01-17 11:58 ` [PATCH] powernow-k8: Add a kconfig dependency on acpi-cpufreq Borislav Petkov
2013-01-17 12:53 ` Rafael J. Wysocki
2013-01-17 14:17 ` Borislav Petkov
2013-01-17 22:10 ` Rafael J. Wysocki
2013-01-17 22:12 ` Borislav Petkov
2013-01-18 16:23 ` [PATCH] drivers/cpufreq: Warn user when powernow-k8 tries to fall back to acpi-cpufreq and it is unavailable Matthew Garrett
2013-01-18 17:07 ` Borislav Petkov
2013-01-18 19:00 ` Borislav Petkov [this message]
2013-01-18 19:00 ` Borislav Petkov
2013-01-18 19:06 ` Matthew Garrett
2013-01-18 19:36 ` Borislav Petkov
2013-01-18 19:38 ` Matthew Garrett
2013-01-18 19:58 ` Borislav Petkov
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