diff options
Diffstat (limited to 'src/arch/arm64/armv8/secmon/secmon_init.c')
-rw-r--r-- | src/arch/arm64/armv8/secmon/secmon_init.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/src/arch/arm64/armv8/secmon/secmon_init.c b/src/arch/arm64/armv8/secmon/secmon_init.c deleted file mode 100644 index 2ac59fbb5f..0000000000 --- a/src/arch/arm64/armv8/secmon/secmon_init.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Google Inc - * - * 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/barrier.h> -#include <arch/cache.h> -#include <arch/io.h> -#include <arch/exception.h> -#include <arch/lib_helpers.h> -#include <arch/psci.h> -#include <arch/secmon.h> -#include <arch/smc.h> -#include <arch/startup.h> -#include <console/console.h> -#include <stddef.h> -#include "secmon.h" - -static void secmon_init(struct secmon_params *params, int bsp); - -static void secmon_init_bsp(void *arg) -{ - secmon_init(arg, 1); -} - -static void secmon_init_nonbsp(void *arg) -{ - secmon_init(arg, 0); -} - -/* - * This variable holds entry point for secmon init code. Once the stacks are - * setup by the stage_entry.S, it jumps to c_entry. - */ -void (*c_entry[2])(void *) = { &secmon_init_bsp, &secmon_init_nonbsp }; - -static void cpu_resume(void *unused) -{ - psci_cpu_entry(); -} - -static void cpu_resume_init(void) -{ - /* Change entry points into secmon. */ - c_entry[0] = c_entry[1] = cpu_resume; - dcache_clean_by_mva(&c_entry, sizeof(c_entry)); - - /* Back up state. */ - startup_save_cpu_data(); -} - -static void start_up_cpu(void *arg) -{ - struct secmon_params *params = arg; - struct cpu_action *action; - - if (cpu_is_bsp()) - action = ¶ms->bsp; - else - action = ¶ms->secondary; - - - if (action->run == NULL) - psci_turn_off_self(); - - psci_turn_on_self(action); -} - -static void cpu_init(int bsp) -{ - struct cpu_info *ci = cpu_info(); - - ci->id = smp_processor_id(); - cpu_mark_online(ci); - - if (bsp) - cpu_set_bsp(); -} - -static void wait_for_all_cpus(size_t expected) -{ - while (cpus_online() != expected) - ; -} - -static void secmon_init(struct secmon_params *params, int bsp) -{ - struct cpu_action action = { - .run = start_up_cpu, - .arg = params, - }; - - exception_hwinit(); - cpu_init(bsp); - - if (!cpu_is_bsp()) - secmon_wait_for_action(); - - /* Wait for all CPUs to enter secmon. */ - wait_for_all_cpus(params->online_cpus); - - smc_init(); - psci_init((uintptr_t)arm64_cpu_startup_resume); - - /* Initialize the resume path. */ - cpu_resume_init(); - - /* Make sure all non-BSP CPUs take action before the BSP. */ - arch_run_on_all_cpus_but_self_async(&action); - /* Turn on BSP. */ - start_up_cpu(params); - - printk(BIOS_ERR, "CPU turn on failed for BSP.\n"); - - secmon_wait_for_action(); -} - -void secmon_wait_for_action(void) -{ - arch_cpu_wait_for_action(); -} |