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x86: use symbolic constants for MSR_IA32_MISC_ENABLE bits 

Impact: Cleanup. No functional changes.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Vegard Nossum 2009-02-20 11:56:38 +01:00 committed by Ingo Molnar
parent 71d8f9784a
commit ecab22aa6d
5 changed files with 13 additions and 13 deletions
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6
arch/x86/kernel/cpu/cpufreq/e_powersaver.c
View File

@ -204,12 +204,12 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
}
/* Enable Enhanced PowerSaver */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
if (!(val & 1 << 16)) {
val |= 1 << 16;
if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
val |= MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP;
wrmsrl(MSR_IA32_MISC_ENABLE, val);
/* Can be locked at 0 */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
if (!(val & 1 << 16)) {
if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
printk(KERN_INFO "eps: Can't enable Enhanced PowerSaver\n");
return -ENODEV;
}

6
arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
View File

@ -390,14 +390,14 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
enable it if not. */
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
if (!(l & (1<<16))) {
l |= (1<<16);
if (!(l & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
l |= MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP;
dprintk("trying to enable Enhanced SpeedStep (%x)\n", l);
wrmsr(MSR_IA32_MISC_ENABLE, l, h);
/* check to see if it stuck */
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
if (!(l & (1<<16))) {
if (!(l & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
printk(KERN_INFO PFX
"couldn't enable Enhanced SpeedStep\n");
return -ENODEV;

4
arch/x86/kernel/cpu/intel.c
View File

@ -147,10 +147,10 @@ static void __cpuinit intel_workarounds(struct cpuinfo_x86 *c)
*/
if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_mask == 1)) {
rdmsr(MSR_IA32_MISC_ENABLE, lo, hi);
if ((lo & (1<<9)) == 0) {
if ((lo & MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE) == 0) {
printk (KERN_INFO "CPU: C0 stepping P4 Xeon detected.\n");
printk (KERN_INFO "CPU: Disabling hardware prefetching (Errata 037)\n");
lo |= (1<<9); /* Disable hw prefetching */
lo |= MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE;
wrmsr (MSR_IA32_MISC_ENABLE, lo, hi);
}
}

6
arch/x86/kernel/cpu/mcheck/mce_intel_64.c
View File

@ -49,13 +49,13 @@ static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c)
*/
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
h = apic_read(APIC_LVTTHMR);
if ((l & (1 << 3)) && (h & APIC_DM_SMI)) {
if ((l & MSR_IA32_MISC_ENABLE_TM1) && (h & APIC_DM_SMI)) {
printk(KERN_DEBUG
"CPU%d: Thermal monitoring handled by SMI\n", cpu);
return;
}
if (cpu_has(c, X86_FEATURE_TM2) && (l & (1 << 13)))
if (cpu_has(c, X86_FEATURE_TM2) && (l & MSR_IA32_MISC_ENABLE_TM2))
tm2 = 1;
if (h & APIC_VECTOR_MASK) {
@ -73,7 +73,7 @@ static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c)
wrmsr(MSR_IA32_THERM_INTERRUPT, l | 0x03, h);
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
wrmsr(MSR_IA32_MISC_ENABLE, l | (1 << 3), h);
wrmsr(MSR_IA32_MISC_ENABLE, l | MSR_IA32_MISC_ENABLE_TM1, h);
l = apic_read(APIC_LVTTHMR);
apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED);

4
arch/x86/kernel/cpu/mcheck/p4.c
View File

@ -85,7 +85,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
*/
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
h = apic_read(APIC_LVTTHMR);
if ((l & (1<<3)) && (h & APIC_DM_SMI)) {
if ((l & MSR_IA32_MISC_ENABLE_TM1) && (h & APIC_DM_SMI)) {
printk(KERN_DEBUG "CPU%d: Thermal monitoring handled by SMI\n",
cpu);
return; /* -EBUSY */
@ -111,7 +111,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
vendor_thermal_interrupt = intel_thermal_interrupt;
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
wrmsr(MSR_IA32_MISC_ENABLE, l | (1<<3), h);
wrmsr(MSR_IA32_MISC_ENABLE, l | MSR_IA32_MISC_ENABLE_TM1, h);
l = apic_read(APIC_LVTTHMR);
apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED);