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/smp.h> 12 #include <asm/suspend.h> 13 14 #ifdef CONFIG_ACPI 15 extern int acpi_strict; 16 extern int acpi_disabled; 17 extern int acpi_pci_disabled; 18 extern int acpi_noirq; 19 extern int pptt_enabled; 20 21 #define acpi_os_ioremap acpi_os_ioremap 22 void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size); 23 24 static inline void disable_acpi(void) 25 { 26 acpi_disabled = 1; 27 acpi_pci_disabled = 1; 28 acpi_noirq = 1; 29 } 30 31 static inline bool acpi_has_cpu_in_madt(void) 32 { 33 return true; 34 } 35 36 #define MAX_CORE_PIC 256 37 38 extern struct list_head acpi_wakeup_device_list; 39 extern struct acpi_madt_core_pic acpi_core_pic[MAX_CORE_PIC]; 40 41 extern int __init parse_acpi_topology(void); 42 43 static inline u32 get_acpi_id_for_cpu(unsigned int cpu) 44 { 45 return acpi_core_pic[cpu_logical_map(cpu)].processor_id; 46 } 47 48 #endif /* !CONFIG_ACPI */ 49 50 #define ACPI_TABLE_UPGRADE_MAX_PHYS ARCH_LOW_ADDRESS_LIMIT 51 52 extern int loongarch_acpi_suspend(void); 53 extern int (*acpi_suspend_lowlevel)(void); 54 55 static inline unsigned long acpi_get_wakeup_address(void) 56 { 57 #ifdef CONFIG_SUSPEND 58 return (unsigned long)loongarch_wakeup_start; 59 #endif 60 return 0UL; 61 } 62 63 #endif /* _ASM_LOONGARCH_ACPI_H */ 64