linux-kernel - [-v2 PATCH 5/6] powernow-k8: Fix frequency reporting

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Message-Id: <1269610800-23847-6-git-send-email-bp@amd64.org>
Date:	Fri, 26 Mar 2010 14:39:59 +0100
From:	Borislav Petkov <bp@...64.org>
To:	<akpm@...ux-foundation.org>, davej@...hat.com
Cc:	trenn@...e.de, linux@...inikbrodowski.net, <mingo@...e.hu>,
	<hpa@...or.com>, <tglx@...utronix.de>, cpufreq@...r.kernel.org,
	<x86@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: [-v2 PATCH 5/6] powernow-k8: Fix frequency reporting

From: Mark Langsdorf <mark.langsdorf@....com>

With F10, model 10, all valid frequencies are in the ACPI _PST table.

Cc: <stable@...nel.org> # 33.x 32.x
Signed-off-by: Mark Langsdorf <mark.langsdorf@....com>
Signed-off-by: Borislav Petkov <borislav.petkov@....com>
Reviewed-by: Thomas Renninger <trenn@...e.de>
---
 arch/x86/kernel/cpu/cpufreq/powernow-k8.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 1dd292c..317db7b 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -935,7 +935,8 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data,
 		powernow_table[i].index = index;
 
 		/* Frequency may be rounded for these */
-		if (boot_cpu_data.x86 == 0x10 || boot_cpu_data.x86 == 0x11) {
+		if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
+				 || boot_cpu_data.x86 == 0x11) {
 			powernow_table[i].frequency =
 				freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7);
 		} else
-- 
1.7.0

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