diff options
Diffstat (limited to 'src/soc/intel/common/block/cpu')
-rw-r--r-- | src/soc/intel/common/block/cpu/cpulib.c | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c index 5920512cd4..2272e69edb 100644 --- a/src/soc/intel/common/block/cpu/cpulib.c +++ b/src/soc/intel/common/block/cpu/cpulib.c @@ -14,6 +14,7 @@ * GNU General Public License for more details. */ +#include <arch/acpigen.h> #include <arch/io.h> #include <console/console.h> #include <cpu/intel/turbo.h> @@ -238,5 +239,60 @@ int cpu_read_topology(unsigned int *num_phys, unsigned int *num_virt) msr = rdmsr(MSR_CORE_THREAD_COUNT); *num_virt = (msr.lo >> 0) & 0xffff; *num_phys = (msr.lo >> 16) & 0xffff; - return (*num_virt == *num_phys); + return (*num_virt == *num_phys); +} + +int cpu_get_coord_type(void) +{ + return HW_ALL; +} + +uint32_t cpu_get_min_ratio(void) +{ + msr_t msr; + /* Get bus ratio limits and calculate clock speeds */ + msr = rdmsr(MSR_PLATFORM_INFO); + return ((msr.hi >> 8) & 0xff); /* Max Efficiency Ratio */ +} + +uint32_t cpu_get_max_ratio(void) +{ + msr_t msr; + uint32_t ratio_max; + if (cpu_config_tdp_levels()) { + /* Set max ratio to nominal TDP ratio */ + msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); + ratio_max = msr.lo & 0xff; + } else { + msr = rdmsr(MSR_PLATFORM_INFO); + /* Max Non-Turbo Ratio */ + ratio_max = (msr.lo >> 8) & 0xff; + } + return ratio_max; +} + +uint32_t cpu_get_bus_clock(void) +{ + /* CPU bus clock is set by default here to 100MHz. + * This function returns the bus clock in KHz. + */ + return CONFIG_CPU_BCLK_MHZ * KHz; +} + +uint32_t cpu_get_power_max(void) +{ + msr_t msr; + int power_unit; + + msr = rdmsr(MSR_PKG_POWER_SKU_UNIT); + power_unit = 2 << ((msr.lo & 0xf) - 1); + msr = rdmsr(MSR_PKG_POWER_SKU); + return ((msr.lo & 0x7fff) / power_unit) * 1000; +} + +uint32_t cpu_get_max_turbo_ratio(void) +{ + msr_t msr; + msr = rdmsr(MSR_TURBO_RATIO_LIMIT); + return msr.lo & 0xff; } |