| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <amdblocks/cpu.h> |
| #include <amdblocks/smm.h> |
| #include <console/console.h> |
| #include <cpu/amd/microcode.h> |
| #include <cpu/cpu.h> |
| #include <cpu/x86/lapic.h> |
| #include <cpu/x86/mp.h> |
| #include <cpu/x86/mtrr.h> |
| #include <cpu/x86/smm.h> |
| #include <device/device.h> |
| #include <soc/cpu.h> |
| #include <soc/iomap.h> |
| #include <soc/reset.h> |
| |
| /* MP and SMM loading initialization */ |
| |
| /* |
| * Do essential initialization tasks before APs can be fired up - |
| * |
| * 1. Prevent race condition in MTRR solution. Enable MTRRs on the BSP. This |
| * creates the MTRR solution that the APs will use. Otherwise APs will try to |
| * apply the incomplete solution as the BSP is calculating it. |
| */ |
| static void pre_mp_init(void) |
| { |
| x86_setup_mtrrs_with_detect_no_above_4gb(); |
| x86_mtrr_check(); |
| } |
| |
| static void post_mp_init(void) |
| { |
| global_smi_enable(); |
| apm_control(APM_CNT_SMMINFO); |
| } |
| |
| static const struct mp_ops mp_ops = { |
| .pre_mp_init = pre_mp_init, |
| .get_cpu_count = get_cpu_count, |
| .get_smm_info = get_smm_info, |
| .relocation_handler = smm_relocation_handler, |
| .post_mp_init = post_mp_init, |
| }; |
| |
| void mp_init_cpus(struct bus *cpu_bus) |
| { |
| /* Clear for take-off */ |
| if (mp_init_with_smm(cpu_bus, &mp_ops) < 0) |
| printk(BIOS_ERR, "MP initialization failure.\n"); |
| |
| /* pre_mp_init made the flash not cacheable. Reset to WP for performance. */ |
| mtrr_use_temp_range(FLASH_BASE_ADDR, CONFIG_ROM_SIZE, MTRR_TYPE_WRPROT); |
| |
| set_warm_reset_flag(); |
| } |
| |
| static void zen_2_3_init(struct device *dev) |
| { |
| setup_lapic(); |
| set_cstate_io_addr(); |
| |
| amd_update_microcode_from_cbfs(); |
| } |
| |
| static struct device_operations cpu_dev_ops = { |
| .init = zen_2_3_init, |
| }; |
| |
| static struct cpu_device_id cpu_table[] = { |
| { X86_VENDOR_AMD, CEZANNE_A0_CPUID}, |
| { 0, 0 }, |
| }; |
| |
| static const struct cpu_driver zen_2_3 __cpu_driver = { |
| .ops = &cpu_dev_ops, |
| .id_table = cpu_table, |
| }; |