1/*
2 *  Copyright (C) 1999 VA Linux Systems
3 *  Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
4 *  Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
5 *  Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 *  This program is free software; you can redistribute it and/or modify
10 *  it under the terms of the GNU General Public License as published by
11 *  the Free Software Foundation; either version 2 of the License, or
12 *  (at your option) any later version.
13 *
14 *  This program is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this program; if not, write to the Free Software
21 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22 *
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 */
25
26#ifndef _ASM_ACPI_H
27#define _ASM_ACPI_H
28
29#ifdef __KERNEL__
30
31#include <acpi/pdc_intel.h>
32
33#include <linux/init.h>
34#include <linux/numa.h>
35#include <asm/numa.h>
36
37#ifdef	CONFIG_ACPI
38extern int acpi_lapic;
39#define acpi_disabled 0	/* ACPI always enabled on IA64 */
40#define acpi_noirq 0	/* ACPI always enabled on IA64 */
41#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
42#define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
43
44static inline bool acpi_has_cpu_in_madt(void)
45{
46	return !!acpi_lapic;
47}
48#endif
49#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
50static inline void disable_acpi(void) { }
51
52#ifdef CONFIG_IA64_GENERIC
53const char *acpi_get_sysname (void);
54#else
55static inline const char *acpi_get_sysname (void)
56{
57# if defined (CONFIG_IA64_HP_SIM)
58	return "hpsim";
59# elif defined (CONFIG_IA64_HP_ZX1)
60	return "hpzx1";
61# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
62	return "hpzx1_swiotlb";
63# elif defined (CONFIG_IA64_SGI_SN2)
64	return "sn2";
65# elif defined (CONFIG_IA64_SGI_UV)
66	return "uv";
67# elif defined (CONFIG_IA64_DIG)
68	return "dig";
69# elif defined(CONFIG_IA64_DIG_VTD)
70	return "dig_vtd";
71# else
72#	error Unknown platform.  Fix acpi.c.
73# endif
74}
75#endif
76int acpi_request_vector (u32 int_type);
77int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
78
79/* Low-level suspend routine. */
80extern int acpi_suspend_lowlevel(void);
81
82extern unsigned long acpi_wakeup_address;
83
84/*
85 * Record the cpei override flag and current logical cpu. This is
86 * useful for CPU removal.
87 */
88extern unsigned int can_cpei_retarget(void);
89extern unsigned int is_cpu_cpei_target(unsigned int cpu);
90extern void set_cpei_target_cpu(unsigned int cpu);
91extern unsigned int get_cpei_target_cpu(void);
92extern void prefill_possible_map(void);
93#ifdef CONFIG_ACPI_HOTPLUG_CPU
94extern int additional_cpus;
95#else
96#define additional_cpus 0
97#endif
98
99#ifdef CONFIG_ACPI_NUMA
100#if MAX_NUMNODES > 256
101#define MAX_PXM_DOMAINS MAX_NUMNODES
102#else
103#define MAX_PXM_DOMAINS (256)
104#endif
105extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
106extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
107#endif
108
109static inline bool arch_has_acpi_pdc(void) { return true; }
110static inline void arch_acpi_set_pdc_bits(u32 *buf)
111{
112	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
113}
114
115#define acpi_unlazy_tlb(x)
116
117#ifdef CONFIG_ACPI_NUMA
118extern cpumask_t early_cpu_possible_map;
119#define for_each_possible_early_cpu(cpu)  \
120	for_each_cpu((cpu), &early_cpu_possible_map)
121
122static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
123{
124	int low_cpu, high_cpu;
125	int cpu;
126	int next_nid = 0;
127
128	low_cpu = cpumask_weight(&early_cpu_possible_map);
129
130	high_cpu = max(low_cpu, min_cpus);
131	high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
132
133	for (cpu = low_cpu; cpu < high_cpu; cpu++) {
134		cpumask_set_cpu(cpu, &early_cpu_possible_map);
135		if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
136			node_cpuid[cpu].nid = next_nid;
137			next_nid++;
138			if (next_nid >= num_online_nodes())
139				next_nid = 0;
140		}
141	}
142}
143#endif /* CONFIG_ACPI_NUMA */
144
145#endif /*__KERNEL__*/
146
147#endif /*_ASM_ACPI_H*/
148