| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2017 Kyösti Mälkki |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <arch/acpi.h> |
| #include <arch/cpu.h> |
| #include <cbmem.h> |
| #include <cpu/amd/car.h> |
| #include <cpu/amd/agesa/s3_resume.h> |
| #include <cpu/x86/bist.h> |
| #include <cpu/x86/mtrr.h> |
| #include <console/console.h> |
| #include <halt.h> |
| #include <program_loading.h> |
| #include <romstage_handoff.h> |
| #include <smp/node.h> |
| #include <string.h> |
| #include <timestamp.h> |
| #include <northbridge/amd/agesa/agesa_helper.h> |
| #include <northbridge/amd/agesa/state_machine.h> |
| |
| void asmlinkage early_all_cores(void) |
| { |
| amd_initmmio(); |
| } |
| |
| void __attribute__((weak)) platform_once(struct sysinfo *cb) |
| { |
| board_BeforeAgesa(cb); |
| } |
| |
| static void fill_sysinfo(struct sysinfo *cb) |
| { |
| memset(cb, 0, sizeof(*cb)); |
| cb->s3resume = acpi_is_wakeup_s3(); |
| |
| if (!HAS_LEGACY_WRAPPER) |
| agesa_set_interface(cb); |
| } |
| |
| void * asmlinkage romstage_main(unsigned long bist) |
| { |
| struct sysinfo romstage_state; |
| struct sysinfo *cb = &romstage_state; |
| u8 initial_apic_id = (u8) (cpuid_ebx(1) >> 24); |
| uintptr_t stack_top = CACHE_TMP_RAMTOP; |
| int cbmem_initted = 0; |
| |
| fill_sysinfo(cb); |
| |
| if ((initial_apic_id == 0) && boot_cpu()) { |
| |
| timestamp_init(timestamp_get()); |
| timestamp_add_now(TS_START_ROMSTAGE); |
| |
| platform_once(cb); |
| |
| console_init(); |
| } |
| |
| printk(BIOS_DEBUG, "APIC %02d: CPU Family_Model = %08x\n", |
| initial_apic_id, cpuid_eax(1)); |
| |
| /* Halt if there was a built in self test failure */ |
| report_bist_failure(bist); |
| |
| if (!HAS_LEGACY_WRAPPER) { |
| |
| agesa_execute_state(cb, AMD_INIT_RESET); |
| |
| agesa_execute_state(cb, AMD_INIT_EARLY); |
| |
| timestamp_add_now(TS_BEFORE_INITRAM); |
| |
| if (!cb->s3resume) |
| agesa_execute_state(cb, AMD_INIT_POST); |
| else |
| agesa_execute_state(cb, AMD_INIT_RESUME); |
| |
| /* FIXME: Detect if TSC frequency changed during raminit? */ |
| timestamp_rescale_table(1, 4); |
| timestamp_add_now(TS_AFTER_INITRAM); |
| |
| } else { |
| |
| agesa_main(cb); |
| |
| } |
| |
| if (IS_ENABLED(CONFIG_EARLY_CBMEM_INIT) || cb->s3resume) |
| cbmem_initted = !cbmem_recovery(cb->s3resume); |
| |
| if (cb->s3resume && !cbmem_initted) { |
| printk(BIOS_EMERG, "Unable to recover CBMEM\n"); |
| halt(); |
| } |
| |
| if (IS_ENABLED(CONFIG_EARLY_CBMEM_INIT) || cb->s3resume) { |
| stack_top = romstage_ram_stack_base(HIGH_ROMSTAGE_STACK_SIZE, |
| ROMSTAGE_STACK_CBMEM); |
| stack_top += HIGH_ROMSTAGE_STACK_SIZE; |
| } |
| |
| if (IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)) |
| romstage_handoff_init(cb->s3resume); |
| |
| printk(BIOS_DEBUG, "Move CAR stack.\n"); |
| return (void*)stack_top; |
| } |
| |
| void asmlinkage romstage_after_car(void) |
| { |
| struct sysinfo romstage_state; |
| struct sysinfo *cb = &romstage_state; |
| |
| printk(BIOS_DEBUG, "CAR disabled.\n"); |
| |
| fill_sysinfo(cb); |
| |
| if (HAS_LEGACY_WRAPPER) |
| agesa_postcar(cb); |
| |
| if (cb->s3resume) |
| set_resume_cache(); |
| |
| run_ramstage(); |
| } |