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x86/hwmon: fix initialization of coretemp

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Using cpuid_eax() to determine feature availability on other than
the current CPU is invalid. And feature availability should also be
checked in the hotplug code path.

Signed-off-by: Jan Beulich <[email protected]>
Cc: Rudolf Marek <[email protected]>
Cc: Fenghua Yu <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Jan Beulich 2010-09-23 22:21:34 -07:00 • committed by Guenter Roeck
commit a46590533a
3 changed files with 15 additions and 16 deletions
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1
arch/x86/include/asm/cpufeature.h
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@ -168,6 +168,7 @@
#define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */
#define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */
#define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */
#define X86_FEATURE_DTS (7*32+ 7) /* Digital Thermal Sensor */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */

1
arch/x86/kernel/cpu/scattered.c
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@ -31,6 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
const struct cpuid_bit *cb;
static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
{ X86_FEATURE_DTS, CR_EAX, 0, 0x00000006, 0 },
{ X86_FEATURE_IDA, CR_EAX, 1, 0x00000006, 0 },
{ X86_FEATURE_ARAT, CR_EAX, 2, 0x00000006, 0 },
{ X86_FEATURE_PLN, CR_EAX, 4, 0x00000006, 0 },