1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Author: Jianmin Lv <lvjianmin@loongson.cn> 4 * Huacai Chen <chenhuacai@loongson.cn> 5 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 6 */ 7 8 #ifndef _ASM_LOONGARCH_ACPI_H 9 #define _ASM_LOONGARCH_ACPI_H 10 11 #include <asm/suspend.h> 12 13 #ifdef CONFIG_ACPI 14 extern int acpi_strict; 15 extern int acpi_disabled; 16 extern int acpi_pci_disabled; 17 extern int acpi_noirq; 18 extern int pptt_enabled; 19 20 #define acpi_os_ioremap acpi_os_ioremap 21 void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size); 22 23 static inline void disable_acpi(void) 24 { 25 acpi_disabled = 1; 26 acpi_pci_disabled = 1; 27 acpi_noirq = 1; 28 } 29 30 static inline bool acpi_has_cpu_in_madt(void) 31 { 32 return true; 33 } 34 35 extern struct list_head acpi_wakeup_device_list; 36 extern struct acpi_madt_core_pic acpi_core_pic[NR_CPUS]; 37 38 extern int __init parse_acpi_topology(void); 39 40 static inline u32 get_acpi_id_for_cpu(unsigned int cpu) 41 { 42 return acpi_core_pic[cpu_logical_map(cpu)].processor_id; 43 } 44 45 #endif /* !CONFIG_ACPI */ 46 47 #define ACPI_TABLE_UPGRADE_MAX_PHYS ARCH_LOW_ADDRESS_LIMIT 48 49 extern int loongarch_acpi_suspend(void); 50 extern int (*acpi_suspend_lowlevel)(void); 51 52 static inline unsigned long acpi_get_wakeup_address(void) 53 { 54 #ifdef CONFIG_SUSPEND 55 return (unsigned long)loongarch_wakeup_start; 56 #endif 57 return 0UL; 58 } 59 60 #endif /* _ASM_LOONGARCH_ACPI_H */ 61