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H. Peter Anvin1965aae2008-10-22 22:26:29 -07001#ifndef _ASM_X86_ACPI_H
2#define _ASM_X86_ACPI_H
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +01003
Thomas Gleixner0b80fc72008-01-30 13:30:36 +01004/*
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>
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +010027
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010028#include <asm/numa.h>
Yinghai Lubee7f9c2013-09-06 19:08:00 -070029#include <asm/fixmap.h>
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +010030#include <asm/processor.h>
Venki Pallipadibde6f5f2008-01-30 13:32:01 +010031#include <asm/mmu.h>
Ingo Molnar4c1cbaf2008-06-03 09:28:52 +020032#include <asm/mpspec.h>
H. Peter Anvin319b6ff2012-05-30 12:33:41 +030033#include <asm/realmode.h>
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +010034
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010035#ifdef CONFIG_ACPI
36extern int acpi_lapic;
37extern int acpi_ioapic;
38extern int acpi_noirq;
39extern int acpi_strict;
40extern int acpi_disabled;
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010041extern int acpi_pci_disabled;
42extern int acpi_skip_timer_override;
43extern int acpi_use_timer_override;
Andreas Herrmann7f74f8f2011-02-24 15:53:46 +010044extern int acpi_fix_pin2_polarity;
Naveen N. Rao9ad95872013-07-01 21:08:54 +053045extern int acpi_disable_cmcff;
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010046
Harvey Harrison6697c052008-02-09 23:24:08 +010047extern u8 acpi_sci_flags;
48extern int acpi_sci_override_gsi;
49void acpi_pic_sci_set_trigger(unsigned int, u16);
50
Jeremy Fitzhardinge90f68812010-06-24 17:05:41 +010051extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
52 int trigger, int polarity);
53
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010054static inline void disable_acpi(void)
55{
56 acpi_disabled = 1;
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010057 acpi_pci_disabled = 1;
58 acpi_noirq = 1;
59}
60
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010061extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
62
63static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
64static inline void acpi_disable_pci(void)
65{
66 acpi_pci_disabled = 1;
67 acpi_noirq_set();
68}
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010069
Rafael J. Wysockif1a20032011-02-08 23:42:22 +010070/* Low-level suspend routine. */
Konrad Rzeszutek Wilkd6a77ea2013-05-14 17:09:16 +000071extern int (*acpi_suspend_lowlevel)(void);
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010072
H. Peter Anvin319b6ff2012-05-30 12:33:41 +030073/* Physical address to resume after wakeup */
74#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
Thomas Gleixner0b80fc72008-01-30 13:30:36 +010075
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +010076/*
77 * Check if the CPU can handle C2 and deeper
78 */
79static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
80{
81 /*
82 * Early models (<=5) of AMD Opterons are not supposed to go into
83 * C2 state.
84 *
85 * Steppings 0x0A and later are good
86 */
87 if (boot_cpu_data.x86 == 0x0F &&
88 boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
89 boot_cpu_data.x86_model <= 0x05 &&
90 boot_cpu_data.x86_mask < 0x0A)
91 return 1;
Len Brown02c68a02011-04-01 16:59:53 -040092 else if (amd_e400_c1e_detected)
Thomas Gleixnera8d68292008-09-22 19:02:25 +020093 return 1;
Alexey Starikovskiyc1c30632007-11-26 20:42:19 +010094 else
95 return max_cstate;
96}
97
Alex Chiang1d9cb472009-12-20 12:19:14 -070098static inline bool arch_has_acpi_pdc(void)
99{
100 struct cpuinfo_x86 *c = &cpu_data(0);
101 return (c->x86_vendor == X86_VENDOR_INTEL ||
102 c->x86_vendor == X86_VENDOR_CENTAUR);
103}
104
Alex Chiang6c5807d2009-12-20 12:19:29 -0700105static inline void arch_acpi_set_pdc_bits(u32 *buf)
106{
107 struct cpuinfo_x86 *c = &cpu_data(0);
108
109 buf[2] |= ACPI_PDC_C_CAPABILITY_SMP;
110
111 if (cpu_has(c, X86_FEATURE_EST))
112 buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
113
114 if (cpu_has(c, X86_FEATURE_ACPI))
115 buf[2] |= ACPI_PDC_T_FFH;
116
117 /*
118 * If mwait/monitor is unsupported, C2/C3_FFH will be disabled
119 */
120 if (!cpu_has(c, X86_FEATURE_MWAIT))
121 buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
122}
123
Graeme Gregoryb50154d2014-07-18 18:02:53 +0800124static inline bool acpi_has_cpu_in_madt(void)
125{
126 return !!acpi_lapic;
127}
128
Thomas Gleixner0b80fc72008-01-30 13:30:36 +0100129#else /* !CONFIG_ACPI */
130
131#define acpi_lapic 0
132#define acpi_ioapic 0
Naveen N. Rao9ad95872013-07-01 21:08:54 +0530133#define acpi_disable_cmcff 0
Thomas Gleixner0b80fc72008-01-30 13:30:36 +0100134static inline void acpi_noirq_set(void) { }
135static inline void acpi_disable_pci(void) { }
136static inline void disable_acpi(void) { }
137
138#endif /* !CONFIG_ACPI */
139
140#define ARCH_HAS_POWER_INIT 1
141
Thomas Gleixner0b80fc72008-01-30 13:30:36 +0100142#ifdef CONFIG_ACPI_NUMA
143extern int acpi_numa;
Tejun Heoa9aec562011-02-16 12:13:06 +0100144extern int x86_acpi_numa_init(void);
David Rientjes4e76f4e2010-12-22 17:23:47 -0800145#endif /* CONFIG_ACPI_NUMA */
Thomas Gleixner0b80fc72008-01-30 13:30:36 +0100146
Venki Pallipadibde6f5f2008-01-30 13:32:01 +0100147#define acpi_unlazy_tlb(x) leave_mm(x)
148
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700149#endif /* _ASM_X86_ACPI_H */