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1965aae3 PA |
1 | #ifndef _ASM_X86_ACPI_H |
2 | #define _ASM_X86_ACPI_H | |
c1c30634 | 3 | |
0b80fc72 TG |
4 | /* |
5 | * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
6 | * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org> | |
7 | * | |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
25 | */ | |
26 | #include <acpi/pdc_intel.h> | |
c1c30634 | 27 | |
0b80fc72 | 28 | #include <asm/numa.h> |
bee7f9c8 | 29 | #include <asm/fixmap.h> |
c1c30634 | 30 | #include <asm/processor.h> |
bde6f5f5 | 31 | #include <asm/mmu.h> |
4c1cbafb | 32 | #include <asm/mpspec.h> |
319b6ffc | 33 | #include <asm/realmode.h> |
c1c30634 | 34 | |
b40227fb JZZ |
35 | #ifdef CONFIG_ACPI_APEI |
36 | # include <asm/pgtable_types.h> | |
37 | #endif | |
38 | ||
0b80fc72 TG |
39 | #ifdef CONFIG_ACPI |
40 | extern int acpi_lapic; | |
41 | extern int acpi_ioapic; | |
42 | extern int acpi_noirq; | |
43 | extern int acpi_strict; | |
44 | extern int acpi_disabled; | |
0b80fc72 TG |
45 | extern int acpi_pci_disabled; |
46 | extern int acpi_skip_timer_override; | |
47 | extern int acpi_use_timer_override; | |
7f74f8f2 | 48 | extern int acpi_fix_pin2_polarity; |
9ad95879 | 49 | extern int acpi_disable_cmcff; |
0b80fc72 | 50 | |
6697c052 HH |
51 | extern u8 acpi_sci_flags; |
52 | extern int acpi_sci_override_gsi; | |
53 | void acpi_pic_sci_set_trigger(unsigned int, u16); | |
54 | ||
90f6881e JF |
55 | extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, |
56 | int trigger, int polarity); | |
8abb850a | 57 | extern void (*__acpi_unregister_gsi)(u32 gsi); |
90f6881e | 58 | |
0b80fc72 TG |
59 | static inline void disable_acpi(void) |
60 | { | |
61 | acpi_disabled = 1; | |
0b80fc72 TG |
62 | acpi_pci_disabled = 1; |
63 | acpi_noirq = 1; | |
64 | } | |
65 | ||
0b80fc72 TG |
66 | extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); |
67 | ||
68 | static inline void acpi_noirq_set(void) { acpi_noirq = 1; } | |
69 | static inline void acpi_disable_pci(void) | |
70 | { | |
71 | acpi_pci_disabled = 1; | |
72 | acpi_noirq_set(); | |
73 | } | |
0b80fc72 | 74 | |
f1a2003e | 75 | /* Low-level suspend routine. */ |
d6a77ead | 76 | extern int (*acpi_suspend_lowlevel)(void); |
0b80fc72 | 77 | |
319b6ffc PA |
78 | /* Physical address to resume after wakeup */ |
79 | #define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start)) | |
0b80fc72 | 80 | |
c1c30634 AS |
81 | /* |
82 | * Check if the CPU can handle C2 and deeper | |
83 | */ | |
84 | static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) | |
85 | { | |
86 | /* | |
87 | * Early models (<=5) of AMD Opterons are not supposed to go into | |
88 | * C2 state. | |
89 | * | |
90 | * Steppings 0x0A and later are good | |
91 | */ | |
92 | if (boot_cpu_data.x86 == 0x0F && | |
93 | boot_cpu_data.x86_vendor == X86_VENDOR_AMD && | |
94 | boot_cpu_data.x86_model <= 0x05 && | |
95 | boot_cpu_data.x86_mask < 0x0A) | |
96 | return 1; | |
02c68a02 | 97 | else if (amd_e400_c1e_detected) |
a8d68290 | 98 | return 1; |
c1c30634 AS |
99 | else |
100 | return max_cstate; | |
101 | } | |
102 | ||
1d9cb470 AC |
103 | static inline bool arch_has_acpi_pdc(void) |
104 | { | |
105 | struct cpuinfo_x86 *c = &cpu_data(0); | |
106 | return (c->x86_vendor == X86_VENDOR_INTEL || | |
107 | c->x86_vendor == X86_VENDOR_CENTAUR); | |
108 | } | |
109 | ||
6c5807d7 AC |
110 | static inline void arch_acpi_set_pdc_bits(u32 *buf) |
111 | { | |
112 | struct cpuinfo_x86 *c = &cpu_data(0); | |
113 | ||
114 | buf[2] |= ACPI_PDC_C_CAPABILITY_SMP; | |
115 | ||
116 | if (cpu_has(c, X86_FEATURE_EST)) | |
117 | buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; | |
118 | ||
119 | if (cpu_has(c, X86_FEATURE_ACPI)) | |
120 | buf[2] |= ACPI_PDC_T_FFH; | |
121 | ||
122 | /* | |
123 | * If mwait/monitor is unsupported, C2/C3_FFH will be disabled | |
124 | */ | |
125 | if (!cpu_has(c, X86_FEATURE_MWAIT)) | |
126 | buf[2] &= ~(ACPI_PDC_C_C2C3_FFH); | |
127 | } | |
128 | ||
b50154d5 GG |
129 | static inline bool acpi_has_cpu_in_madt(void) |
130 | { | |
131 | return !!acpi_lapic; | |
132 | } | |
133 | ||
0b80fc72 TG |
134 | #else /* !CONFIG_ACPI */ |
135 | ||
136 | #define acpi_lapic 0 | |
137 | #define acpi_ioapic 0 | |
9ad95879 | 138 | #define acpi_disable_cmcff 0 |
0b80fc72 TG |
139 | static inline void acpi_noirq_set(void) { } |
140 | static inline void acpi_disable_pci(void) { } | |
141 | static inline void disable_acpi(void) { } | |
142 | ||
143 | #endif /* !CONFIG_ACPI */ | |
144 | ||
145 | #define ARCH_HAS_POWER_INIT 1 | |
146 | ||
0b80fc72 TG |
147 | #ifdef CONFIG_ACPI_NUMA |
148 | extern int acpi_numa; | |
a9aec56a | 149 | extern int x86_acpi_numa_init(void); |
4e76f4e6 | 150 | #endif /* CONFIG_ACPI_NUMA */ |
0b80fc72 | 151 | |
bde6f5f5 VP |
152 | #define acpi_unlazy_tlb(x) leave_mm(x) |
153 | ||
b40227fb JZZ |
154 | #ifdef CONFIG_ACPI_APEI |
155 | static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) | |
156 | { | |
157 | /* | |
158 | * We currently have no way to look up the EFI memory map | |
159 | * attributes for a region in a consistent way, because the | |
160 | * memmap is discarded after efi_free_boot_services(). So if | |
161 | * you call efi_mem_attributes() during boot and at runtime, | |
162 | * you could theoretically see different attributes. | |
163 | * | |
164 | * Since we are yet to see any x86 platforms that require | |
165 | * anything other than PAGE_KERNEL (some arm64 platforms | |
166 | * require the equivalent of PAGE_KERNEL_NOCACHE), return that | |
167 | * until we know differently. | |
168 | */ | |
169 | return PAGE_KERNEL; | |
170 | } | |
171 | #endif | |
172 | ||
1965aae3 | 173 | #endif /* _ASM_X86_ACPI_H */ |