diff options
Diffstat (limited to 'src/soc/intel/skylake/cpu.c')
-rw-r--r-- | src/soc/intel/skylake/cpu.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/soc/intel/skylake/cpu.c b/src/soc/intel/skylake/cpu.c index e716c66620..fcec0cefba 100644 --- a/src/soc/intel/skylake/cpu.c +++ b/src/soc/intel/skylake/cpu.c @@ -83,48 +83,6 @@ static void configure_misc(void) wrmsr(MSR_POWER_CTL, msr); } -static void enable_lapic_tpr(void) -{ - msr_t msr; - - msr = rdmsr(MSR_PIC_MSG_CONTROL); - msr.lo &= ~(1 << 10); /* Enable APIC TPR updates */ - wrmsr(MSR_PIC_MSG_CONTROL, msr); -} - -static void configure_dca_cap(void) -{ - uint32_t feature_flag; - msr_t msr; - - /* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */ - feature_flag = cpu_get_feature_flags_ecx(); - if (feature_flag & CPUID_DCA) { - msr = rdmsr(IA32_PLATFORM_DCA_CAP); - msr.lo |= 1; - wrmsr(IA32_PLATFORM_DCA_CAP, msr); - } -} - -static void set_energy_perf_bias(u8 policy) -{ - msr_t msr; - int ecx; - - /* Determine if energy efficient policy is supported. */ - ecx = cpuid_ecx(0x6); - if (!(ecx & (1 << 3))) - return; - - /* Energy Policy is bits 3:0 */ - msr = rdmsr(IA32_ENERGY_PERF_BIAS); - msr.lo &= ~0xf; - msr.lo |= policy & 0xf; - wrmsr(IA32_ENERGY_PERF_BIAS, msr); - - printk(BIOS_DEBUG, "cpu: energy policy set to %u\n", policy); -} - static void configure_c_states(void) { msr_t msr; |