| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| /* |
| * This file is created based on Intel Alder Lake Processor CPU Datasheet |
| * Document number: 619501 |
| * Chapter number: 14 |
| */ |
| |
| #include <console/console.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <cpu/x86/mp.h> |
| #include <cpu/x86/msr.h> |
| #include <cpu/intel/smm_reloc.h> |
| #include <cpu/intel/turbo.h> |
| #include <cpu/intel/common/common.h> |
| #include <fsp/api.h> |
| #include <intelblocks/cpulib.h> |
| #include <intelblocks/mp_init.h> |
| #include <intelblocks/msr.h> |
| #include <intelblocks/acpi.h> |
| #include <soc/cpu.h> |
| #include <soc/msr.h> |
| #include <soc/pci_devs.h> |
| #include <soc/soc_chip.h> |
| #include <types.h> |
| |
| enum alderlake_model { |
| ADL_MODEL_P_M = 0x9A, |
| ADL_MODEL_N = 0xBE, |
| }; |
| |
| bool cpu_soc_is_in_untrusted_mode(void) |
| { |
| msr_t msr; |
| |
| msr = rdmsr(MSR_BIOS_DONE); |
| return !!(msr.lo & ENABLE_IA_UNTRUSTED); |
| } |
| |
| void cpu_soc_bios_done(void) |
| { |
| msr_t msr; |
| |
| msr = rdmsr(MSR_BIOS_DONE); |
| msr.lo |= ENABLE_IA_UNTRUSTED; |
| wrmsr(MSR_BIOS_DONE, msr); |
| } |
| |
| static void soc_fsp_load(void) |
| { |
| fsps_load(); |
| } |
| |
| static void configure_misc(void) |
| { |
| msr_t msr; |
| |
| const config_t *conf = config_of_soc(); |
| |
| msr = rdmsr(IA32_MISC_ENABLE); |
| msr.lo |= (1 << 0); /* Fast String enable */ |
| msr.lo |= (1 << 3); /* TM1/TM2/EMTTM enable */ |
| wrmsr(IA32_MISC_ENABLE, msr); |
| |
| /* Set EIST status */ |
| cpu_set_eist(conf->eist_enable); |
| |
| /* Disable Thermal interrupts */ |
| msr.lo = 0; |
| msr.hi = 0; |
| wrmsr(IA32_THERM_INTERRUPT, msr); |
| |
| /* Enable package critical interrupt only */ |
| msr.lo = 1 << 4; |
| msr.hi = 0; |
| wrmsr(IA32_PACKAGE_THERM_INTERRUPT, msr); |
| |
| /* Enable PROCHOT and Energy/Performance Bias control */ |
| msr = rdmsr(MSR_POWER_CTL); |
| msr.lo |= (1 << 0); /* Enable Bi-directional PROCHOT as an input */ |
| msr.lo |= (1 << 23); /* Lock it */ |
| msr.lo |= (1 << 18); /* Energy/Performance Bias control */ |
| wrmsr(MSR_POWER_CTL, msr); |
| } |
| |
| enum core_type get_soc_cpu_type(void) |
| { |
| struct cpuinfo_x86 cpuinfo; |
| |
| if (cpu_is_hybrid_supported()) |
| return cpu_get_cpu_type(); |
| |
| get_fms(&cpuinfo, cpuid_eax(1)); |
| |
| if (cpuinfo.x86 == 0x6 && cpuinfo.x86_model == ADL_MODEL_N) |
| return CPUID_CORE_TYPE_INTEL_ATOM; |
| else |
| return CPUID_CORE_TYPE_INTEL_CORE; |
| } |
| |
| void soc_get_scaling_factor(u16 *perf_core_scal_factor, u16 *eff_core_scal_factor) |
| { |
| *perf_core_scal_factor = 127; |
| *eff_core_scal_factor = 100; |
| } |
| |
| bool soc_is_nominal_freq_supported(void) |
| { |
| return true; |
| } |
| |
| /* All CPUs including BSP will run the following function. */ |
| void soc_core_init(struct device *cpu) |
| { |
| /* Clear out pending MCEs */ |
| /* TODO(adurbin): This should only be done on a cold boot. Also, some |
| * of these banks are core vs package scope. For now every CPU clears |
| * every bank. */ |
| mca_configure(); |
| |
| enable_lapic_tpr(); |
| |
| /* Configure Enhanced SpeedStep and Thermal Sensors */ |
| configure_misc(); |
| |
| enable_pm_timer_emulation(); |
| |
| /* Enable Direct Cache Access */ |
| configure_dca_cap(); |
| |
| /* Set energy policy. The "normal" EPB (6) is not suitable for Alder |
| * Lake or Raptor Lake CPUs, as this results in higher uncore power. */ |
| set_energy_perf_bias(7); |
| |
| const config_t *conf = config_of_soc(); |
| /* Set energy-performance preference */ |
| if (conf->enable_energy_perf_pref) |
| if (check_energy_perf_cap()) |
| set_energy_perf_pref(conf->energy_perf_pref_value); |
| /* Enable Turbo */ |
| enable_turbo(); |
| |
| if (CONFIG(INTEL_TME) && is_tme_supported()) |
| set_tme_core_activate(); |
| } |
| |
| static void per_cpu_smm_trigger(void) |
| { |
| /* Relocate the SMM handler. */ |
| smm_relocate(); |
| } |
| |
| static void pre_mp_init(void) |
| { |
| soc_fsp_load(); |
| |
| const config_t *conf = config_of_soc(); |
| if (conf->enable_energy_perf_pref) { |
| if (check_energy_perf_cap()) |
| enable_energy_perf_pref(); |
| else |
| printk(BIOS_WARNING, "Energy Performance Preference not supported!\n"); |
| } |
| } |
| |
| static void post_mp_init(void) |
| { |
| /* Set Max Ratio */ |
| cpu_set_max_ratio(); |
| |
| /* |
| * 1. Now that all APs have been relocated as well as the BSP let SMIs |
| * start flowing. |
| * 2. Skip enabling power button SMI and enable it after BS_CHIPS_INIT |
| * to avoid shutdown hang due to lack of init on certain IP in FSP-S. |
| */ |
| global_smi_enable_no_pwrbtn(); |
| } |
| |
| static const struct mp_ops mp_ops = { |
| /* |
| * Skip Pre MP init MTRR programming as MTRRs are mirrored from BSP, |
| * that are set prior to ramstage. |
| * Real MTRRs programming are being done after resource allocation. |
| */ |
| .pre_mp_init = pre_mp_init, |
| .get_cpu_count = get_cpu_count, |
| .get_smm_info = smm_info, |
| .get_microcode_info = get_microcode_info, |
| .pre_mp_smm_init = smm_initialize, |
| .per_cpu_smm_trigger = per_cpu_smm_trigger, |
| .relocation_handler = smm_relocation_handler, |
| .post_mp_init = post_mp_init, |
| }; |
| |
| void soc_init_cpus(struct bus *cpu_bus) |
| { |
| /* TODO: Handle mp_init_with_smm failure? */ |
| mp_init_with_smm(cpu_bus, &mp_ops); |
| |
| /* Thermal throttle activation offset */ |
| configure_tcc_thermal_target(); |
| } |
| |
| enum adl_cpu_type get_adl_cpu_type(void) |
| { |
| const uint16_t adl_m_mch_ids[] = { |
| PCI_DID_INTEL_ADL_M_ID_1, |
| PCI_DID_INTEL_ADL_M_ID_2, |
| }; |
| const uint16_t adl_p_mch_ids[] = { |
| PCI_DID_INTEL_ADL_P_ID_1, |
| PCI_DID_INTEL_ADL_P_ID_3, |
| PCI_DID_INTEL_ADL_P_ID_4, |
| PCI_DID_INTEL_ADL_P_ID_5, |
| PCI_DID_INTEL_ADL_P_ID_6, |
| PCI_DID_INTEL_ADL_P_ID_7, |
| PCI_DID_INTEL_ADL_P_ID_8, |
| PCI_DID_INTEL_ADL_P_ID_9, |
| PCI_DID_INTEL_ADL_P_ID_10 |
| }; |
| const uint16_t adl_s_mch_ids[] = { |
| PCI_DID_INTEL_ADL_S_ID_1, |
| PCI_DID_INTEL_ADL_S_ID_2, |
| PCI_DID_INTEL_ADL_S_ID_3, |
| PCI_DID_INTEL_ADL_S_ID_4, |
| PCI_DID_INTEL_ADL_S_ID_5, |
| PCI_DID_INTEL_ADL_S_ID_6, |
| PCI_DID_INTEL_ADL_S_ID_7, |
| PCI_DID_INTEL_ADL_S_ID_8, |
| PCI_DID_INTEL_ADL_S_ID_9, |
| PCI_DID_INTEL_ADL_S_ID_10, |
| PCI_DID_INTEL_ADL_S_ID_11, |
| PCI_DID_INTEL_ADL_S_ID_12, |
| PCI_DID_INTEL_ADL_S_ID_13, |
| PCI_DID_INTEL_ADL_S_ID_14, |
| PCI_DID_INTEL_ADL_S_ID_15, |
| }; |
| |
| const uint16_t adl_n_mch_ids[] = { |
| PCI_DID_INTEL_ADL_N_ID_1, |
| PCI_DID_INTEL_ADL_N_ID_2, |
| PCI_DID_INTEL_ADL_N_ID_3, |
| PCI_DID_INTEL_ADL_N_ID_4, |
| }; |
| |
| const uint16_t rpl_p_mch_ids[] = { |
| PCI_DID_INTEL_RPL_P_ID_1, |
| PCI_DID_INTEL_RPL_P_ID_2, |
| PCI_DID_INTEL_RPL_P_ID_3, |
| PCI_DID_INTEL_RPL_P_ID_4, |
| PCI_DID_INTEL_RPL_P_ID_5, |
| }; |
| |
| const uint16_t mchid = pci_s_read_config16(PCI_DEV(0, PCI_SLOT(SA_DEVFN_ROOT), |
| PCI_FUNC(SA_DEVFN_ROOT)), |
| PCI_DEVICE_ID); |
| |
| for (size_t i = 0; i < ARRAY_SIZE(adl_p_mch_ids); i++) { |
| if (adl_p_mch_ids[i] == mchid) |
| return ADL_P; |
| } |
| |
| for (size_t i = 0; i < ARRAY_SIZE(adl_m_mch_ids); i++) { |
| if (adl_m_mch_ids[i] == mchid) |
| return ADL_M; |
| } |
| |
| for (size_t i = 0; i < ARRAY_SIZE(adl_s_mch_ids); i++) { |
| if (adl_s_mch_ids[i] == mchid) |
| return ADL_S; |
| } |
| |
| for (size_t i = 0; i < ARRAY_SIZE(adl_n_mch_ids); i++) { |
| if (adl_n_mch_ids[i] == mchid) |
| return ADL_N; |
| } |
| |
| for (size_t i = 0; i < ARRAY_SIZE(rpl_p_mch_ids); i++) { |
| if (rpl_p_mch_ids[i] == mchid) |
| return RPL_P; |
| } |
| |
| return ADL_UNKNOWN; |
| } |
| |
| uint8_t get_supported_lpm_mask(void) |
| { |
| enum adl_cpu_type type = get_adl_cpu_type(); |
| switch (type) { |
| case ADL_M: /* fallthrough */ |
| case ADL_N: |
| case ADL_P: |
| case RPL_P: |
| return LPM_S0i2_0 | LPM_S0i3_0; |
| case ADL_S: |
| return LPM_S0i2_0 | LPM_S0i2_1; |
| default: |
| printk(BIOS_ERR, "Unknown ADL CPU type: %d\n", type); |
| return 0; |
| } |
| } |