diff options
Diffstat (limited to 'arch/x86/cpu/intel_common/cpu.c')
-rw-r--r-- | arch/x86/cpu/intel_common/cpu.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/x86/cpu/intel_common/cpu.c b/arch/x86/cpu/intel_common/cpu.c index 509730aea96..39aa0f63c65 100644 --- a/arch/x86/cpu/intel_common/cpu.c +++ b/arch/x86/cpu/intel_common/cpu.c @@ -12,6 +12,7 @@ #include <dm.h> #include <errno.h> #include <log.h> +#include <acpi/acpigen.h> #include <asm/cpu.h> #include <asm/cpu_common.h> #include <asm/intel_regs.h> @@ -126,6 +127,7 @@ int cpu_intel_get_info(struct cpu_info *info, int bclk) info->cpu_freq = ((msr.lo >> 8) & 0xff) * bclk * 1000000; info->features = 1 << CPU_FEAT_L1_CACHE | 1 << CPU_FEAT_MMU | 1 << CPU_FEAT_UCODE | 1 << CPU_FEAT_DEVICE_ID; + info->address_width = cpu_phys_address_size(); return 0; } @@ -227,3 +229,80 @@ void cpu_set_eist(bool eist_status) msr.lo &= ~MISC_ENABLE_ENHANCED_SPEEDSTEP; msr_write(MSR_IA32_MISC_ENABLE, msr); } + +int cpu_get_coord_type(void) +{ + return HW_ALL; +} + +int cpu_get_min_ratio(void) +{ + msr_t msr; + + /* Get bus ratio limits and calculate clock speeds */ + msr = msr_read(MSR_PLATFORM_INFO); + + return (msr.hi >> 8) & 0xff; /* Max Efficiency Ratio */ +} + +int cpu_get_max_ratio(void) +{ + u32 ratio_max; + msr_t msr; + + if (cpu_config_tdp_levels()) { + /* Set max ratio to nominal TDP ratio */ + msr = msr_read(MSR_CONFIG_TDP_NOMINAL); + ratio_max = msr.lo & 0xff; + } else { + msr = msr_read(MSR_PLATFORM_INFO); + /* Max Non-Turbo Ratio */ + ratio_max = (msr.lo >> 8) & 0xff; + } + + return ratio_max; +} + +int cpu_get_bus_clock_khz(void) +{ + /* + * CPU bus clock is set by default here to 100MHz. This function returns + * the bus clock in KHz. + */ + return INTEL_BCLK_MHZ * 1000; +} + +int cpu_get_power_max(void) +{ + int power_unit; + msr_t msr; + + msr = msr_read(MSR_PKG_POWER_SKU_UNIT); + power_unit = 2 << ((msr.lo & 0xf) - 1); + msr = msr_read(MSR_PKG_POWER_SKU); + + return (msr.lo & 0x7fff) * 1000 / power_unit; +} + +int cpu_get_max_turbo_ratio(void) +{ + msr_t msr; + + msr = msr_read(MSR_TURBO_RATIO_LIMIT); + + return msr.lo & 0xff; +} + +int cpu_get_cores_per_package(void) +{ + struct cpuid_result result; + int cores = 1; + + if (gd->arch.x86_vendor != X86_VENDOR_INTEL) + return 1; + + result = cpuid_ext(0xb, 1); + cores = result.ebx & 0xff; + + return cores; +} |