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-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c25
1 files changed, 11 insertions, 14 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 2709b3c183b4..331021112f2b 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -118,20 +118,17 @@ static int query_current_values_with_pending_wait(struct powernow_k8_data *data)
118 u32 i = 0; 118 u32 i = 0;
119 119
120 if (cpu_family == CPU_HW_PSTATE) { 120 if (cpu_family == CPU_HW_PSTATE) {
121 if (data->currpstate == HW_PSTATE_INVALID) { 121 rdmsr(MSR_PSTATE_STATUS, lo, hi);
122 /* read (initial) hw pstate if not yet set */ 122 i = lo & HW_PSTATE_MASK;
123 rdmsr(MSR_PSTATE_STATUS, lo, hi); 123 data->currpstate = i;
124 i = lo & HW_PSTATE_MASK; 124
125 125 /*
126 /* 126 * a workaround for family 11h erratum 311 might cause
127 * a workaround for family 11h erratum 311 might cause 127 * an "out-of-range Pstate if the core is in Pstate-0
128 * an "out-of-range Pstate if the core is in Pstate-0 128 */
129 */ 129 if ((boot_cpu_data.x86 == 0x11) && (i >= data->numps))
130 if (i >= data->numps) 130 data->currpstate = HW_PSTATE_0;
131 data->currpstate = HW_PSTATE_0; 131
132 else
133 data->currpstate = i;
134 }
135 return 0; 132 return 0;
136 } 133 }
137 do { 134 do {