diff options
Diffstat (limited to 'src/soc/intel/skylake/cpu.c')
| -rw-r--r-- | src/soc/intel/skylake/cpu.c | 105 |
1 files changed, 20 insertions, 85 deletions
diff --git a/src/soc/intel/skylake/cpu.c b/src/soc/intel/skylake/cpu.c index 10b42dc992..f3bd99508d 100644 --- a/src/soc/intel/skylake/cpu.c +++ b/src/soc/intel/skylake/cpu.c @@ -36,6 +36,7 @@ #include <delay.h> #include <intelblocks/cpulib.h> #include <intelblocks/fast_spi.h> +#include <intelblocks/mp_init.h> #include <pc80/mc146818rtc.h> #include <soc/cpu.h> #include <soc/msr.h> @@ -45,9 +46,19 @@ #include <soc/smm.h> #include <soc/systemagent.h> -/* MP initialization support. */ +/* + * TODO: This Global variable must be removed once the following + * two cases are resolved - + * + * 1) SGX enabling for the BSP issue gets solved, due to which + * configure_sgx() function is kept inside soc_init_cpus(). + * 2) uCode loading after SMM relocation is deleted inside + * per_cpu_smm_trigger() function, since as per + * current BWG, uCode loading can be done after all feature + * programmings are done. There is no specific recommendation + * to do it after SMM Relocation. + */ static const void *microcode_patch; -static int ht_disabled; /* Convert time in seconds to POWER_LIMIT_1_TIME MSR value */ static const u8 power_limit_time_sec_to_msr[] = { @@ -394,7 +405,7 @@ static void enable_pm_timer_emulation(void) } /* All CPUs including BSP will run the following function. */ -static void cpu_core_init(device_t cpu) +void soc_core_init(device_t cpu, const void *microcode) { /* Clear out pending MCEs */ configure_mca(); @@ -425,75 +436,19 @@ static void cpu_core_init(device_t cpu) enable_turbo(); /* Configure SGX */ - configure_sgx(microcode_patch); -} - -static struct device_operations cpu_dev_ops = { - .init = cpu_core_init, -}; - -static 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 }, - { 0, 0 }, -}; - -static const struct cpu_driver driver __cpu_driver = { - .ops = &cpu_dev_ops, - .id_table = cpu_table, -}; - -static int get_cpu_count(void) -{ - msr_t msr; - int num_threads; - int num_cores; - - msr = rdmsr(MSR_CORE_THREAD_COUNT); - num_threads = (msr.lo >> 0) & 0xffff; - num_cores = (msr.lo >> 16) & 0xffff; - printk(BIOS_DEBUG, "CPU has %u cores, %u threads enabled.\n", - num_cores, num_threads); - - ht_disabled = num_threads == num_cores; - - return num_threads; -} - -static void get_microcode_info(const void **microcode, int *parallel) -{ - microcode_patch = intel_microcode_find(); - *microcode = microcode_patch; - *parallel = 1; - intel_microcode_load_unlocked(microcode_patch); + configure_sgx(microcode); } static int adjust_apic_id(int index, int apic_id) { - if (ht_disabled) + unsigned int num_cores, num_threads; + + if (cpu_read_topology(&num_cores, &num_threads)) return 2 * index; else return index; } -/* Check whether the current CPU is the sibling hyperthread. */ -int is_secondary_thread(void) -{ - int apic_id; - apic_id = lapicid(); - - if (!ht_disabled && (apic_id & 1)) - return 1; - return 0; -} - static void per_cpu_smm_trigger(void) { /* Relocate the SMM handler. */ @@ -537,11 +492,9 @@ static const struct mp_ops mp_ops = { .post_mp_init = post_mp_init, }; -static void soc_init_cpus(void *unused) +void soc_init_cpus(struct bus *cpu_bus, const void *microcode) { - device_t dev = dev_find_path(NULL, DEVICE_PATH_CPU_CLUSTER); - assert(dev != NULL); - struct bus *cpu_bus = dev->link_list; + microcode_patch = microcode; if (mp_init_with_smm(cpu_bus, &mp_ops)) printk(BIOS_ERR, "MP initialization failure.\n"); @@ -558,20 +511,6 @@ static void soc_init_cpus(void *unused) configure_sgx(microcode_patch); } -/* Ensure to re-program all MTRRs based on DRAM resource settings */ -static void soc_post_cpus_init(void *unused) -{ - if (mp_run_on_all_cpus(&x86_setup_mtrrs_with_detect, 1000) < 0) - printk(BIOS_ERR, "MTRR programming failure\n"); - - /* Temporarily cache the memory-mapped boot media. */ - if (IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED) && - IS_ENABLED(CONFIG_BOOT_DEVICE_SPI_FLASH)) - fast_spi_cache_bios_region(); - - x86_mtrr_check(); -} - int soc_skip_ucode_update(u32 current_patch_id, u32 new_patch_id) { msr_t msr1; @@ -594,7 +533,3 @@ int soc_skip_ucode_update(u32 current_patch_id, u32 new_patch_id) return (msr1.lo & PRMRR_SUPPORTED) && (current_patch_id == new_patch_id - 1); } - -/* Do CPU MP Init before FSP Silicon Init */ -BOOT_STATE_INIT_ENTRY(BS_DEV_INIT_CHIPS, BS_ON_ENTRY, soc_init_cpus, NULL); -BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, soc_post_cpus_init, NULL); |