| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef _CPU_INTEL_HASWELL_H |
| #define _CPU_INTEL_HASWELL_H |
| |
| #include <stdint.h> |
| |
| /* Haswell CPU types */ |
| #define HASWELL_FAMILY_MOBILE 0x306c0 |
| #define HASWELL_FAMILY_ULT 0x40650 |
| |
| /* Haswell CPU steppings */ |
| #define HASWELL_STEPPING_MOBILE_A0 1 |
| #define HASWELL_STEPPING_MOBILE_B0 2 |
| #define HASWELL_STEPPING_MOBILE_C0 3 |
| #define HASWELL_STEPPING_MOBILE_D0 4 |
| #define HASWELL_STEPPING_ULT_B0 0 |
| #define HASWELL_STEPPING_ULT_C0 1 |
| |
| /* Haswell bus clock is fixed at 100MHz */ |
| #define HASWELL_BCLK 100 |
| |
| #define MSR_CORE_THREAD_COUNT 0x35 |
| #define MSR_FEATURE_CONFIG 0x13c |
| #define MSR_FLEX_RATIO 0x194 |
| #define FLEX_RATIO_LOCK (1 << 20) |
| #define FLEX_RATIO_EN (1 << 16) |
| #define MSR_TEMPERATURE_TARGET 0x1a2 |
| #define MSR_LT_LOCK_MEMORY 0x2e7 |
| |
| #define MSR_PLATFORM_INFO 0xce |
| #define PLATFORM_INFO_SET_TDP (1 << 29) |
| #define MSR_PKG_CST_CONFIG_CONTROL 0xe2 |
| #define MSR_PMG_IO_CAPTURE_BASE 0xe4 |
| |
| #define MSR_MISC_PWR_MGMT 0x1aa |
| #define MISC_PWR_MGMT_EIST_HW_DIS (1 << 0) |
| #define MSR_TURBO_RATIO_LIMIT 0x1ad |
| #define MSR_POWER_CTL 0x1fc |
| |
| #define MSR_C_STATE_LATENCY_CONTROL_0 0x60a |
| #define MSR_C_STATE_LATENCY_CONTROL_1 0x60b |
| #define MSR_C_STATE_LATENCY_CONTROL_2 0x60c |
| #define MSR_C_STATE_LATENCY_CONTROL_3 0x633 |
| #define MSR_C_STATE_LATENCY_CONTROL_4 0x634 |
| #define MSR_C_STATE_LATENCY_CONTROL_5 0x635 |
| #define IRTL_VALID (1 << 15) |
| #define IRTL_1_NS (0 << 10) |
| #define IRTL_32_NS (1 << 10) |
| #define IRTL_1024_NS (2 << 10) |
| #define IRTL_32768_NS (3 << 10) |
| #define IRTL_1048576_NS (4 << 10) |
| #define IRTL_33554432_NS (5 << 10) |
| #define IRTL_RESPONSE_MASK (0x3ff) |
| |
| /* long duration in low dword, short duration in high dword */ |
| #define MSR_PKG_POWER_LIMIT 0x610 |
| #define PKG_POWER_LIMIT_MASK 0x7fff |
| #define PKG_POWER_LIMIT_EN (1 << 15) |
| #define PKG_POWER_LIMIT_CLAMP (1 << 16) |
| #define PKG_POWER_LIMIT_TIME_SHIFT 17 |
| #define PKG_POWER_LIMIT_TIME_MASK 0x7f |
| |
| #define MSR_VR_CURRENT_CONFIG 0x601 |
| #define MSR_VR_MISC_CONFIG 0x603 |
| #define MSR_PKG_POWER_SKU_UNIT 0x606 |
| #define MSR_PKG_POWER_SKU 0x614 |
| #define MSR_DDR_RAPL_LIMIT 0x618 |
| #define MSR_VR_MISC_CONFIG2 0x636 |
| #define MSR_PP0_POWER_LIMIT 0x638 |
| #define MSR_PP1_POWER_LIMIT 0x640 |
| |
| #define MSR_CONFIG_TDP_NOMINAL 0x648 |
| #define MSR_CONFIG_TDP_LEVEL1 0x649 |
| #define MSR_CONFIG_TDP_LEVEL2 0x64a |
| #define MSR_CONFIG_TDP_CONTROL 0x64b |
| #define MSR_TURBO_ACTIVATION_RATIO 0x64c |
| |
| /* P-state configuration */ |
| #define PSS_MAX_ENTRIES 8 |
| #define PSS_RATIO_STEP 2 |
| #define PSS_LATENCY_TRANSITION 10 |
| #define PSS_LATENCY_BUSMASTER 10 |
| |
| /* PCODE MMIO communications live in the MCHBAR. */ |
| #define BIOS_MAILBOX_INTERFACE 0x5da4 |
| #define MAILBOX_RUN_BUSY (1UL << 31) |
| #define MAILBOX_BIOS_CMD_READ_PCS 1 |
| #define MAILBOX_BIOS_CMD_WRITE_PCS 2 |
| #define MAILBOX_BIOS_CMD_READ_CALIBRATION 0x509 |
| #define MAILBOX_BIOS_CMD_FSM_MEASURE_INTVL 0x909 |
| #define MAILBOX_BIOS_CMD_READ_PCH_POWER 0xa |
| #define MAILBOX_BIOS_CMD_READ_PCH_POWER_EXT 0xb |
| /* Errors are returned back in bits 7:0. */ |
| #define MAILBOX_BIOS_ERROR_NONE 0 |
| #define MAILBOX_BIOS_ERROR_INVALID_COMMAND 1 |
| #define MAILBOX_BIOS_ERROR_TIMEOUT 2 |
| #define MAILBOX_BIOS_ERROR_ILLEGAL_DATA 3 |
| #define MAILBOX_BIOS_ERROR_RESERVED 4 |
| #define MAILBOX_BIOS_ERROR_ILLEGAL_VR_ID 5 |
| #define MAILBOX_BIOS_ERROR_VR_INTERFACE_LOCKED 6 |
| #define MAILBOX_BIOS_ERROR_VR_ERROR 7 |
| /* Data is passed through bits 31:0 of the data register. */ |
| #define BIOS_MAILBOX_DATA 0x5da0 |
| |
| /* Sanity check config options. */ |
| #if (CONFIG_SMM_TSEG_SIZE <= (CONFIG_IED_REGION_SIZE + CONFIG_SMM_RESERVED_SIZE)) |
| # error "CONFIG_SMM_TSEG_SIZE <= (CONFIG_IED_REGION_SIZE + CONFIG_SMM_RESERVED_SIZE)" |
| #endif |
| #if (CONFIG_SMM_TSEG_SIZE < 0x800000) |
| # error "CONFIG_SMM_TSEG_SIZE must at least be 8MiB" |
| #endif |
| #if ((CONFIG_SMM_TSEG_SIZE & (CONFIG_SMM_TSEG_SIZE - 1)) != 0) |
| # error "CONFIG_SMM_TSEG_SIZE is not a power of 2" |
| #endif |
| #if ((CONFIG_IED_REGION_SIZE & (CONFIG_IED_REGION_SIZE - 1)) != 0) |
| # error "CONFIG_IED_REGION_SIZE is not a power of 2" |
| #endif |
| |
| /* Lock MSRs */ |
| void intel_cpu_haswell_finalize_smm(void); |
| |
| /* Configure power limits for turbo mode */ |
| void set_power_limits(u8 power_limit_1_time); |
| int cpu_config_tdp_levels(void); |
| |
| /* CPU identification */ |
| int haswell_family_model(void); |
| int haswell_stepping(void); |
| int haswell_is_ult(void); |
| |
| #endif |