Messages in this thread Patch in this message | | | Date | Thu, 03 Feb 2005 16:10:35 +0100 | From | Matthias-Christian Ott <> | Subject | [2.6 Patch] speedstep-lib.c: fix frequency multiplier for Pentium4 models 0&1 |
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The Pentium4 models 0&1 have a longer MSR_EBC_FREQUENCY_ID register as the models 2&3, so the bit shift must be bigger.
Signed-off-by: Matthias-Christian Ott <matthias.christian@tiscali.de>
diff -Nurp linux-2.6.11-rc3/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c linux-2.6.11-rc3-ott/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c --- linux-2.6.11-rc3/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c 2004-12-24 22:35:27.000000000 +0100 +++ linux-2.6.11-rc3-ott/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c 2005-02-03 16:04:59.000000000 +0100 @@ -160,7 +160,14 @@ static unsigned int pentium4_get_frequen printk(KERN_DEBUG "speedstep-lib: couldn't detect FSB speed. Please send an e-mail to <linux@brodo.de>\n"); /* Multiplier. */ - mult = msr_lo >> 24; + if (c->x86_model < 2) + { + mult = msr_lo >> 27; + } + else + { + mult = msr_lo >> 24; + } dprintk("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", fsb, mult, (fsb * mult)); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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