1 /* 2 * Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/acpi_s3.h> 9 #include <asm/acpi_table.h> 10 #include <asm/post.h> 11 12 static void asmlinkage (*acpi_do_wakeup)(void *vector) = (void *)WAKEUP_BASE; 13 14 static void acpi_jump_to_wakeup(void *vector) 15 { 16 /* Copy wakeup trampoline in place */ 17 memcpy((void *)WAKEUP_BASE, __wakeup, __wakeup_size); 18 19 printf("Jumping to OS waking vector %p\n", vector); 20 acpi_do_wakeup(vector); 21 } 22 23 void acpi_resume(struct acpi_fadt *fadt) 24 { 25 void *wake_vec; 26 27 wake_vec = acpi_find_wakeup_vector(fadt); 28 29 post_code(POST_OS_RESUME); 30 acpi_jump_to_wakeup(wake_vec); 31 } 32