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| author | Marti Raudsepp <marti@juffo.org> | 2010-01-20 19:19:33 +0200 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2010-08-03 13:47:04 -0400 |
| commit | 298decfbc44e9a4cb7862ae1b7dfc4e1ba3551b9 (patch) | |
| tree | ceef739864c02e85c99922834d566e3686177f7c /arch/x86/kernel/cpu/cpufreq/powernow-k8.c | |
| parent | c2f4a2c6e08c7635316dfd25ef706e9104384c56 (diff) | |
| download | lwn-298decfbc44e9a4cb7862ae1b7dfc4e1ba3551b9.tar.gz lwn-298decfbc44e9a4cb7862ae1b7dfc4e1ba3551b9.zip | |
[CPUFREQ] powernow-k8: On load failure, remind the user to enable support in BIOS setup
On Wed, 2010-01-20 at 16:56 +0100, Thomas Renninger wrote:
> But most often this happens if people upgrade their CPU and do not
> update their BIOS.
> Or the vendor does not recognise the new CPU even if the BIOS got
> updated.
Maybe some of those people just didn't realize it was disabled in BIOS?
If you tell users that it's a firmware bug then they'll probably just
give up.
> The itself message might be an enhancment, IMO it's not worth a patch.
Why do you think so? I spent an hour on hunting down the BIOS upgrade,
only to find that it didn't improve anything. It was a day later that I
realized that it might be a BIOS option; and the option was literally
the _last_ option in the whole BIOS setup. :)
This message would have saved the day.
> But do not revert the FW_BUG part!
Sure, you have a point here.
How about this patch?
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/powernow-k8.c')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 3e90cce3dc8b..c48b44b3b43a 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -806,6 +806,8 @@ static int find_psb_table(struct powernow_k8_data *data) * www.amd.com */ printk(KERN_ERR FW_BUG PFX "No PSB or ACPI _PSS objects\n"); + printk(KERN_ERR PFX "Make sure that your BIOS is up to date" + " and Cool'N'Quiet support is enabled in BIOS setup\n"); return -ENODEV; } |