On Thu, 2009-07-23 at 18:09 +0800, Thomas Renninger wrote: > On Thursday 23 July 2009 04:11:10 Zhang Rui wrote: > > when acpi=off, powernow-k8 driver is still loaded, and fails with > > a firmware bug warning message. > > http://bugzilla.kernel.org/show_bug.cgi?id=13695#c5 > > > > this is misleading, > > we should not load powernow-k8 driver when acpi=off. > > http://bugzilla.kernel.org/show_bug.cgi?id=13695 > > Maybe this one is better: > - It allows these special, deprecated PSB BIOS structure > use in acpi=off case > - It complains that powernow-k8 won't work without ACPI, instead > of complaining about the BIOS missing _PSS ACPI structures > (in acpi=off case). > > Compile tested on latest 2.6.31-rc2. > > Thomas > > ---- > CPUFREQ: Avoid powernow-k8 BIOS complains when acpi=off > > - It still allows these special, deprecated PSB BIOS structure > use in acpi=off case > - It complains that powernow-k8 won't work without ACPI, instead > of complaining about the BIOS missing _PSS ACPI structures > (in acpi=off case). > > Signed-off-by: Thomas Renninger <trenn@xxxxxxx> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> thanks, rui > > --- > arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > Index: cpufreq_governor_cleanups/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > =================================================================== > --- cpufreq_governor_cleanups.orig/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > +++ cpufreq_governor_cleanups/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > @@ -1286,7 +1286,11 @@ static int __cpuinit powernowk8_cpu_init > * an UP version, and is deprecated by AMD. > */ > if (num_online_cpus() != 1) { > - printk_once(ACPI_PSS_BIOS_BUG_MSG); > + if (acpi_disabled) > + printk_once(KERN_WARN PFX > + "ACPI disabled, exiting\n"); > + else > + printk_once(ACPI_PSS_BIOS_BUG_MSG); > goto err_out; > } > if (pol->cpu != 0) { > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
