diff options
Diffstat (limited to 'src/cpu/intel')
| -rw-r--r-- | src/cpu/intel/haswell/haswell.h | 1 | ||||
| -rw-r--r-- | src/cpu/intel/haswell/haswell_init.c | 13 |
2 files changed, 12 insertions, 2 deletions
diff --git a/src/cpu/intel/haswell/haswell.h b/src/cpu/intel/haswell/haswell.h index cd007c1f7e..387521722a 100644 --- a/src/cpu/intel/haswell/haswell.h +++ b/src/cpu/intel/haswell/haswell.h @@ -85,6 +85,7 @@ #define MSR_VR_CURRENT_CONFIG 0x601 #define MSR_PKG_POWER_SKU_UNIT 0x606 #define MSR_PKG_POWER_SKU 0x614 +#define MSR_DDR_RAPL_LIMIT 0x618 #define MSR_PP0_POWER_LIMIT 0x638 #define MSR_PP1_POWER_LIMIT 0x640 diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c index b2e6eaf324..fb78df419a 100644 --- a/src/cpu/intel/haswell/haswell_init.c +++ b/src/cpu/intel/haswell/haswell_init.c @@ -361,7 +361,7 @@ void set_power_limits(u8 power_limit_1_time) u8 power_limit_1_val; if (power_limit_1_time > ARRAY_SIZE(power_limit_time_sec_to_msr)) - return; + power_limit_1_time = 28; if (!(msr.lo & PLATFORM_INFO_SET_TDP)) return; @@ -401,10 +401,19 @@ void set_power_limits(u8 power_limit_1_time) limit.hi = 0; limit.hi |= ((tdp * 125) / 100) & PKG_POWER_LIMIT_MASK; limit.hi |= PKG_POWER_LIMIT_EN; - /* Power limit 2 time is only programmable on SNB EP/EX */ + /* Power limit 2 time is only programmable on server SKU */ wrmsr(MSR_PKG_POWER_LIMIT, limit); + /* Set power limit values in MCHBAR as well */ + MCHBAR32(MCH_PKG_POWER_LIMIT_LO) = limit.lo; + MCHBAR32(MCH_PKG_POWER_LIMIT_HI) = limit.hi; + + /* Set DDR RAPL power limit by copying from MMIO to MSR */ + msr.lo = MCHBAR32(MCH_DDR_POWER_LIMIT_LO); + msr.hi = MCHBAR32(MCH_DDR_POWER_LIMIT_HI); + wrmsr(MSR_DDR_RAPL_LIMIT, msr); + /* Use nominal TDP values for CPUs with configurable TDP */ if (cpu_config_tdp_levels()) { msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); |