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
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