| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <bootstate.h> |
| #include <console/console.h> |
| #include <cpu/cpu.h> |
| #include <cpu/x86/mtrr.h> |
| #include <cpu/x86/msr.h> |
| #include <cpu/x86/mp.h> |
| #include <cpu/intel/microcode.h> |
| #include <intelblocks/cfg.h> |
| #include <intelblocks/cpulib.h> |
| #include <intelblocks/fast_spi.h> |
| #include <intelblocks/mp_init.h> |
| #include <intelblocks/msr.h> |
| #include <soc/cpu.h> |
| |
| static void init_one_cpu(struct device *dev) |
| { |
| soc_core_init(dev); |
| |
| const void *microcode_patch = intel_microcode_find(); |
| intel_microcode_load_unlocked(microcode_patch); |
| } |
| |
| static struct device_operations cpu_dev_ops = { |
| .init = init_one_cpu, |
| }; |
| |
| static const struct cpu_device_id cpu_table[] = { |
| { X86_VENDOR_INTEL, CPUID_SKYLAKE_C0 }, |
| { X86_VENDOR_INTEL, CPUID_SKYLAKE_D0 }, |
| { X86_VENDOR_INTEL, CPUID_SKYLAKE_HQ0 }, |
| { X86_VENDOR_INTEL, CPUID_SKYLAKE_HR0 }, |
| { X86_VENDOR_INTEL, CPUID_KABYLAKE_G0 }, |
| { X86_VENDOR_INTEL, CPUID_KABYLAKE_H0 }, |
| { X86_VENDOR_INTEL, CPUID_KABYLAKE_Y0 }, |
| { X86_VENDOR_INTEL, CPUID_KABYLAKE_HA0 }, |
| { X86_VENDOR_INTEL, CPUID_KABYLAKE_HB0 }, |
| { X86_VENDOR_INTEL, CPUID_CANNONLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_CANNONLAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_CANNONLAKE_C0 }, |
| { X86_VENDOR_INTEL, CPUID_CANNONLAKE_D0 }, |
| { X86_VENDOR_INTEL, CPUID_APOLLOLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_APOLLOLAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_APOLLOLAKE_E0 }, |
| { X86_VENDOR_INTEL, CPUID_GLK_A0 }, |
| { X86_VENDOR_INTEL, CPUID_GLK_B0 }, |
| { X86_VENDOR_INTEL, CPUID_GLK_R0 }, |
| { X86_VENDOR_INTEL, CPUID_WHISKEYLAKE_V0 }, |
| { X86_VENDOR_INTEL, CPUID_WHISKEYLAKE_W0 }, |
| { X86_VENDOR_INTEL, CPUID_COFFEELAKE_U0 }, |
| { X86_VENDOR_INTEL, CPUID_COFFEELAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_COFFEELAKE_P0 }, |
| { X86_VENDOR_INTEL, CPUID_COFFEELAKE_R0 }, |
| { X86_VENDOR_INTEL, CPUID_ICELAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_ICELAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_U_A0 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_U_K0_S0 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_H_S_6_2_G0 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_H_S_6_2_G1 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_H_S_10_2_P0 }, |
| { X86_VENDOR_INTEL, CPUID_COMETLAKE_H_S_10_2_Q0_P1 }, |
| { X86_VENDOR_INTEL, CPUID_TIGERLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_TIGERLAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_TIGERLAKE_R0 }, |
| { X86_VENDOR_INTEL, CPUID_ELKHARTLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_ELKHARTLAKE_B0 }, |
| { X86_VENDOR_INTEL, CPUID_JASPERLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_S_A0 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_A0 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_A1 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_A2 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_A3 }, |
| { X86_VENDOR_INTEL, CPUID_ALDERLAKE_N_A0 }, |
| { 0, 0 }, |
| }; |
| |
| static const struct cpu_driver driver __cpu_driver = { |
| .ops = &cpu_dev_ops, |
| .id_table = cpu_table, |
| }; |
| |
| /* |
| * MP Init callback function to Find CPU Topology. This function is common |
| * among all SOCs and thus its in Common CPU block. |
| */ |
| int get_cpu_count(void) |
| { |
| unsigned int num_virt_cores, num_phys_cores; |
| |
| cpu_read_topology(&num_phys_cores, &num_virt_cores); |
| |
| printk(BIOS_DEBUG, "Detected %u core, %u thread CPU.\n", |
| num_phys_cores, num_virt_cores); |
| |
| return num_virt_cores; |
| } |
| |
| /* |
| * MP Init callback function(get_microcode_info) to find the Microcode at |
| * Pre MP Init phase. This function is common among all SOCs and thus its in |
| * Common CPU block. |
| * This function also fills in the microcode patch (in *microcode), and also |
| * sets the argument *parallel to 1, which allows microcode loading in all |
| * APs to occur in parallel during MP Init. |
| */ |
| void get_microcode_info(const void **microcode, int *parallel) |
| { |
| *microcode = intel_microcode_find(); |
| *parallel = 1; |
| } |
| |
| /* |
| * Perform BSP and AP initialization |
| * This function can be called in below cases: |
| * 1. During coreboot is doing MP initialization as part of BS_DEV_INIT_CHIPS (exclude |
| * this call if user has selected USE_INTEL_FSP_MP_INIT). |
| * 2. coreboot would like to take APs control back after FSP-S has done with MP |
| * initialization based on user select USE_INTEL_FSP_MP_INIT. |
| * |
| * This function would use cpu_cluster as a device and APIC device as a linked list to |
| * the cpu cluster. This function adds a node in case the mainboard doesn't have a lapic id |
| * hardcoded in devicetree, and then fills with the actual BSP APIC ID. |
| * This allows coreboot to dynamically detect the LAPIC ID of BSP. |
| * In case the mainboard has an APIC ID defined in devicetree, a link will be present and |
| * creation of the new node will be skipped. This node will have the APIC ID defined |
| * in devicetree. |
| */ |
| void init_cpus(void) |
| { |
| struct device *dev = dev_find_path(NULL, DEVICE_PATH_CPU_CLUSTER); |
| assert(dev != NULL); |
| |
| /* In case link to APIC device is not found, create the one */ |
| if (!dev->link_list) |
| add_more_links(dev, 1); |
| |
| soc_init_cpus(dev->link_list); |
| } |
| |
| static void coreboot_init_cpus(void *unused) |
| { |
| if (CONFIG(USE_INTEL_FSP_MP_INIT)) |
| return; |
| |
| const void *microcode_patch = intel_microcode_find(); |
| intel_microcode_load_unlocked(microcode_patch); |
| |
| init_cpus(); |
| } |
| |
| static void wrapper_x86_setup_mtrrs(void *unused) |
| { |
| x86_setup_mtrrs_with_detect(); |
| } |
| |
| /* Ensure to re-program all MTRRs based on DRAM resource settings */ |
| static void post_cpus_init(void *unused) |
| { |
| if (mp_run_on_all_cpus(&wrapper_x86_setup_mtrrs, NULL) != CB_SUCCESS) |
| printk(BIOS_ERR, "MTRR programming failure\n"); |
| |
| x86_mtrr_check(); |
| } |
| |
| /* Do CPU MP Init before FSP Silicon Init */ |
| BOOT_STATE_INIT_ENTRY(BS_DEV_INIT_CHIPS, BS_ON_ENTRY, coreboot_init_cpus, NULL); |
| BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_EXIT, post_cpus_init, NULL); |
| BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, post_cpus_init, NULL); |