Re: p4-clockmod not working in 2.6.16

[Dave Jones <davej@redhat.com>]

On Tue, Mar 21, 2006 at 10:57:10PM +0100, Sasa Ostrouska wrote:

 > Hi Dave, here it is, this is on a Sony Vaio PCG-GRT816S laptop:
 > CPU0: Temperature above threshold
 > CPU0: Running in modulated clock mode
 > .. ad infinitum ..

*yowch*.  Are you running that CPU fanless or something?

Does the patch below help?

		Dave


Fix the code to disable freqs less than 2GHz in N60 errata.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>

Index: linux-2.6.15/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
===================================================================
--- linux-2.6.15.orig/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ linux-2.6.15/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -244,7 +244,7 @@ static int cpufreq_p4_cpu_init(struct cp
 	for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) {
 		if ((i<2) && (has_N44_O17_errata[policy->cpu]))
 			p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-		else if (has_N60_errata[policy->cpu] && p4clockmod_table[i].frequency < 2000000)
+		else if (has_N60_errata[policy->cpu] && ((stock_freq * i)/8) < 2000000)
 			p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
 		else
 			p4clockmod_table[i].frequency = (stock_freq * i)/8;

-- 
http://www.codemonkey.org.uk