Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | /* |
| 4 | * This file is created based on Intel Alder Lake Processor CPU Datasheet |
| 5 | * Document number: 619501 |
| 6 | * Chapter number: 14 |
| 7 | */ |
| 8 | |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 9 | #include <console/console.h> |
| 10 | #include <device/pci.h> |
| 11 | #include <cpu/x86/lapic.h> |
| 12 | #include <cpu/x86/mp.h> |
| 13 | #include <cpu/x86/msr.h> |
| 14 | #include <cpu/intel/smm_reloc.h> |
| 15 | #include <cpu/intel/turbo.h> |
Michael Niewöhner | 10ae1cf | 2020-10-11 14:05:32 +0200 | [diff] [blame] | 16 | #include <cpu/intel/common/common.h> |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 17 | #include <fsp/api.h> |
| 18 | #include <intelblocks/cpulib.h> |
| 19 | #include <intelblocks/mp_init.h> |
| 20 | #include <intelblocks/msr.h> |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 21 | #include <soc/cpu.h> |
| 22 | #include <soc/msr.h> |
| 23 | #include <soc/pci_devs.h> |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 24 | #include <soc/soc_chip.h> |
| 25 | |
| 26 | static void soc_fsp_load(void) |
| 27 | { |
Kyösti Mälkki | cc93c6e | 2021-01-09 22:53:52 +0200 | [diff] [blame] | 28 | fsps_load(); |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 29 | } |
| 30 | |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 31 | static void configure_misc(void) |
| 32 | { |
| 33 | msr_t msr; |
| 34 | |
| 35 | config_t *conf = config_of_soc(); |
| 36 | |
| 37 | msr = rdmsr(IA32_MISC_ENABLE); |
| 38 | msr.lo |= (1 << 0); /* Fast String enable */ |
| 39 | msr.lo |= (1 << 3); /* TM1/TM2/EMTTM enable */ |
| 40 | wrmsr(IA32_MISC_ENABLE, msr); |
| 41 | |
| 42 | /* Set EIST status */ |
| 43 | cpu_set_eist(conf->eist_enable); |
| 44 | |
| 45 | /* Disable Thermal interrupts */ |
| 46 | msr.lo = 0; |
| 47 | msr.hi = 0; |
| 48 | wrmsr(IA32_THERM_INTERRUPT, msr); |
| 49 | |
| 50 | /* Enable package critical interrupt only */ |
| 51 | msr.lo = 1 << 4; |
| 52 | msr.hi = 0; |
| 53 | wrmsr(IA32_PACKAGE_THERM_INTERRUPT, msr); |
| 54 | |
| 55 | /* Enable PROCHOT */ |
| 56 | msr = rdmsr(MSR_POWER_CTL); |
| 57 | msr.lo |= (1 << 0); /* Enable Bi-directional PROCHOT as an input*/ |
| 58 | msr.lo |= (1 << 23); /* Lock it */ |
| 59 | wrmsr(MSR_POWER_CTL, msr); |
| 60 | } |
| 61 | |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 62 | /* All CPUs including BSP will run the following function. */ |
| 63 | void soc_core_init(struct device *cpu) |
| 64 | { |
| 65 | /* Clear out pending MCEs */ |
| 66 | /* TODO(adurbin): This should only be done on a cold boot. Also, some |
| 67 | * of these banks are core vs package scope. For now every CPU clears |
| 68 | * every bank. */ |
| 69 | mca_configure(); |
| 70 | |
| 71 | /* Enable the local CPU apics */ |
| 72 | enable_lapic_tpr(); |
| 73 | setup_lapic(); |
| 74 | |
| 75 | /* Configure Enhanced SpeedStep and Thermal Sensors */ |
| 76 | configure_misc(); |
| 77 | |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 78 | enable_pm_timer_emulation(); |
| 79 | |
| 80 | /* Enable Direct Cache Access */ |
| 81 | configure_dca_cap(); |
| 82 | |
| 83 | /* Set energy policy */ |
| 84 | set_energy_perf_bias(ENERGY_POLICY_NORMAL); |
| 85 | |
| 86 | /* Enable Turbo */ |
| 87 | enable_turbo(); |
| 88 | } |
| 89 | |
| 90 | static void per_cpu_smm_trigger(void) |
| 91 | { |
| 92 | /* Relocate the SMM handler. */ |
| 93 | smm_relocate(); |
| 94 | } |
| 95 | |
| 96 | static void post_mp_init(void) |
| 97 | { |
| 98 | /* Set Max Ratio */ |
| 99 | cpu_set_max_ratio(); |
| 100 | |
| 101 | /* |
Kane Chen | 3aee3ad | 2021-05-04 09:53:38 +0800 | [diff] [blame] | 102 | * 1. Now that all APs have been relocated as well as the BSP let SMIs |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 103 | * start flowing. |
Kane Chen | 3aee3ad | 2021-05-04 09:53:38 +0800 | [diff] [blame] | 104 | * 2. Skip enabling power button SMI and enable it after BS_CHIPS_INIT |
| 105 | * to avoid shutdown hang due to lack of init on certain IP in FSP-S. |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 106 | */ |
Kane Chen | 3aee3ad | 2021-05-04 09:53:38 +0800 | [diff] [blame] | 107 | global_smi_enable_no_pwrbtn(); |
Subrata Banik | 2871e0e | 2020-09-27 11:30:58 +0530 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | static const struct mp_ops mp_ops = { |
| 111 | /* |
| 112 | * Skip Pre MP init MTRR programming as MTRRs are mirrored from BSP, |
| 113 | * that are set prior to ramstage. |
| 114 | * Real MTRRs programming are being done after resource allocation. |
| 115 | */ |
| 116 | .pre_mp_init = soc_fsp_load, |
| 117 | .get_cpu_count = get_cpu_count, |
| 118 | .get_smm_info = smm_info, |
| 119 | .get_microcode_info = get_microcode_info, |
| 120 | .pre_mp_smm_init = smm_initialize, |
| 121 | .per_cpu_smm_trigger = per_cpu_smm_trigger, |
| 122 | .relocation_handler = smm_relocation_handler, |
| 123 | .post_mp_init = post_mp_init, |
| 124 | }; |
| 125 | |
| 126 | void soc_init_cpus(struct bus *cpu_bus) |
| 127 | { |
| 128 | if (mp_init_with_smm(cpu_bus, &mp_ops)) |
| 129 | printk(BIOS_ERR, "MP initialization failure.\n"); |
| 130 | |
| 131 | /* Thermal throttle activation offset */ |
| 132 | configure_tcc_thermal_target(); |
| 133 | } |