diff options
Diffstat (limited to 'src/soc/intel/common/block/include/intelblocks')
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/cpulib.h | 117 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/msr.h | 19 |
2 files changed, 136 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/cpulib.h b/src/soc/intel/common/block/include/intelblocks/cpulib.h new file mode 100644 index 0000000000..0038ecdb7a --- /dev/null +++ b/src/soc/intel/common/block/include/intelblocks/cpulib.h @@ -0,0 +1,117 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef SOC_INTEL_COMMON_BLOCK_CPULIB_H +#define SOC_INTEL_COMMON_BLOCK_CPULIB_H + +#include <stdint.h> + +/* + * Set PERF_CTL MSR (0x199) P_Req (14:8 bits) with + * Turbo Ratio which is the Maximum Ratio. + */ +void cpu_set_max_ratio(void); + +/* + * Get the TDP Nominal Ratio from MSR 0x648 Bits 7:0. + */ +u8 cpu_get_tdp_nominal_ratio(void); + +/* + * Read PLATFORM_INFO MSR (0xCE). + * Return Value of Bit 34:33 (CONFIG_TDP_LEVELS). + * + * Possible values of Bit 34:33 are - + * 00 : Config TDP not supported + * 01 : One Additional TDP level supported + * 10 : Two Additional TDP level supported + * 11 : Reserved + */ +int cpu_config_tdp_levels(void); + +/* + * TURBO_RATIO_LIMIT MSR (0x1AD) Bits 31:0 indicates the + * factory configured values for of 1-core, 2-core, 3-core + * and 4-core turbo ratio limits for all processors. + * + * 7:0 - MAX_TURBO_1_CORE + * 15:8 - MAX_TURBO_2_CORES + * 23:16 - MAX_TURBO_3_CORES + * 31:24 - MAX_TURBO_4_CORES + * + * Set PERF_CTL MSR (0x199) P_Req (14:8 bits) with that value. + */ +void cpu_set_p_state_to_turbo_ratio(void); + +/* + * CONFIG_TDP_NOMINAL MSR (0x648) Bits 7:0 tells Nominal + * TDP level ratio to be used for specific processor (in units + * of 100MHz). + * + * Set PERF_CTL MSR (0x199) P_Req (14:8 bits) with that value. + */ +void cpu_set_p_state_to_nominal_tdp_ratio(void); + +/* + * PLATFORM_INFO MSR (0xCE) Bits 15:8 tells + * MAX_NON_TURBO_LIM_RATIO. + * + * Set PERF_CTL MSR (0x199) P_Req (14:8 bits) with that value. + */ +void cpu_set_p_state_to_max_non_turbo_ratio(void); + +/* + * Get the Burst/Turbo Mode State from MSR IA32_MISC_ENABLE 0x1A0 + * Bit 38 - TURBO_MODE_DISABLE Bit to get state ENABLED / DISABLED. + * Also check for the cpuid 0x6 to check whether Burst mode unsupported. + * Below are the possible cpu_get_burst_mode_state() return values- + * These states are exposed to the User since user + * need to know which is the current Burst Mode State. + */ +enum { + BURST_MODE_UNKNOWN, + BURST_MODE_UNAVAILABLE, + BURST_MODE_DISABLED, + BURST_MODE_ENABLED +}; +int cpu_get_burst_mode_state(void); + +/* + * Enable Burst mode. + */ +void cpu_enable_burst_mode(void); + +/* + * Disable Burst mode. + */ +void cpu_disable_burst_mode(void); + +/* + * Enable Intel Enhanced Speed Step Technology. + */ +void cpu_enable_eist(void); + +/* + * Disable Intel Enhanced Speed Step Technology. + */ +void cpu_disable_eist(void); + +/* + * Set Bit 6 (ENABLE_IA_UNTRUSTED_MODE) of MSR 0x120 + * UCODE_PCR_POWER_MISC MSR to enter IA Untrusted Mode. + */ +void cpu_enable_untrusted_mode(void); + +#endif /* SOC_INTEL_COMMON_BLOCK_CPULIB_H */ diff --git a/src/soc/intel/common/block/include/intelblocks/msr.h b/src/soc/intel/common/block/include/intelblocks/msr.h index 119c21526c..6d78ed8c2f 100644 --- a/src/soc/intel/common/block/include/intelblocks/msr.h +++ b/src/soc/intel/common/block/include/intelblocks/msr.h @@ -36,6 +36,7 @@ #define ENABLE_IA_UNTRUSTED (1 << 6) #define FLUSH_DL1_L2 (1 << 8) #define MSR_EMULATE_PM_TMR 0x121 +#define EMULATE_DELAY_OFFSET_VALUE 20 #define EMULATE_PM_TMR_EN (1 << 16) #define MSR_FEATURE_CONFIG 0x13c #define FEATURE_CONFIG_RESERVED_MASK 0x3ULL @@ -44,8 +45,13 @@ #define SMM_MCA_CAP_MSR 0x17d #define SMM_CPU_SVRSTR_BIT 57 #define SMM_CPU_SVRSTR_MASK (1 << (SMM_CPU_SVRSTR_BIT - 32)) +#define MSR_FLEX_RATIO 0x194 +#define FLEX_RATIO_LOCK (1 << 20) +#define FLEX_RATIO_EN (1 << 16) #define MSR_IA32_PERF_CTL 0x199 #define IA32_MISC_ENABLE 0x1a0 +/* This is burst mode BIT 38 in MSR_IA32_MISC_ENABLES MSR at offset 1A0h */ +#define BURST_MODE_DISABLE (1 << 6) #define MSR_TEMPERATURE_TARGET 0x1a2 #define MSR_PREFETCH_CTL 0x1a4 #define PREFETCH_L1_DISABLE (1 << 0) @@ -56,8 +62,13 @@ #define MISC_PWR_MGMT_ISST_EN_INT (1 << 7) #define MISC_PWR_MGMT_ISST_EN_EPP (1 << 12) #define MSR_TURBO_RATIO_LIMIT 0x1ad +#define PRMRR_PHYS_MASK_MSR 0x1f5 +#define PRMRR_PHYS_MASK_LOCK (1 << 10) +#define PRMRR_PHYS_MASK_VALID (1 << 11) #define MSR_POWER_CTL 0x1fc #define MSR_EVICT_CTL 0x2e0 +#define UNCORE_PRMRR_PHYS_BASE_MSR 0x2f4 +#define UNCORE_PRMRR_PHYS_MASK_MSR 0x2f5 #define IA32_MC0_CTL 0x400 #define IA32_MC0_STATUS 0x401 #define SMM_FEATURE_CONTROL_MSR 0x4e0 @@ -98,6 +109,10 @@ #define PKG_POWER_LIMIT_CLAMP (1 << 16) #define PKG_POWER_LIMIT_TIME_SHIFT 17 #define PKG_POWER_LIMIT_TIME_MASK (0x7f) +/* SMM save state MSRs */ +#define SMBASE_MSR 0xc20 +#define IEDBASE_MSR 0xc22 + #define MSR_IA32_PQR_ASSOC 0x0c8f /* MSR bits 33:32 encode slot number 0-3 */ #define IA32_PQR_ASSOC_MASK (1 << 0 | 1 << 1) @@ -105,5 +120,9 @@ #define MSR_IA32_L3_MASK_2 0x0c92 #define MSR_L2_QOS_MASK(reg) (0xd10 + reg) +/* MTRR_CAP_MSR bits */ +#define SMRR_SUPPORTED (1<<11) +#define PRMRR_SUPPORTED (1<<12) + #endif /* SOC_INTEL_COMMON_MSR_H */ |