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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#define COMPILER_DEPENDENT_INT64 long
38#define COMPILER_DEPENDENT_UINT64 unsigned long
39
40/*
41 * Calling conventions:
42 *
43 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
44 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
45 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
46 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
47 */
48#define ACPI_SYSTEM_XFACE
49#define ACPI_EXTERNAL_XFACE
50#define ACPI_INTERNAL_XFACE
51#define ACPI_INTERNAL_VAR_XFACE
52
53/* Asm macros */
54
55#define ACPI_FLUSH_CPU_CACHE()
56
57static inline int
58ia64_acpi_acquire_global_lock (unsigned int *lock)
59{
60 unsigned int old, new, val;
61 do {
62 old = *lock;
63 new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
64 val = ia64_cmpxchg4_acq(lock, new, old);
65 } while (unlikely (val != old));
66 return (new < 3) ? -1 : 0;
67}
68
69static inline int
70ia64_acpi_release_global_lock (unsigned int *lock)
71{
72 unsigned int old, new, val;
73 do {
74 old = *lock;
75 new = old & ~0x3;
76 val = ia64_cmpxchg4_acq(lock, new, old);
77 } while (unlikely (val != old));
78 return old & 0x1;
79}
80
81#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
82 ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
83
84#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
85 ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
86
87#ifdef CONFIG_ACPI
88#define acpi_disabled 0 /* ACPI always enabled on IA64 */
89#define acpi_noirq 0 /* ACPI always enabled on IA64 */
90#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
91#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
92#endif
93#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
94static inline void disable_acpi(void) { }
95static inline void pci_acpi_crs_quirks(void) { }
96
97#ifdef CONFIG_IA64_GENERIC
98const char *acpi_get_sysname (void);
99#else
100static inline const char *acpi_get_sysname (void)
101{
102# if defined (CONFIG_IA64_HP_SIM)
103 return "hpsim";
104# elif defined (CONFIG_IA64_HP_ZX1)
105 return "hpzx1";
106# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
107 return "hpzx1_swiotlb";
108# elif defined (CONFIG_IA64_SGI_SN2)
109 return "sn2";
110# elif defined (CONFIG_IA64_SGI_UV)
111 return "uv";
112# elif defined (CONFIG_IA64_DIG)
113 return "dig";
114# elif defined(CONFIG_IA64_DIG_VTD)
115 return "dig_vtd";
116# else
117# error Unknown platform. Fix acpi.c.
118# endif
119}
120#endif
121int acpi_request_vector (u32 int_type);
122int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
123
124/* Low-level suspend routine. */
125extern int acpi_suspend_lowlevel(void);
126
127extern unsigned long acpi_wakeup_address;
128
129/*
130 * Record the cpei override flag and current logical cpu. This is
131 * useful for CPU removal.
132 */
133extern unsigned int can_cpei_retarget(void);
134extern unsigned int is_cpu_cpei_target(unsigned int cpu);
135extern void set_cpei_target_cpu(unsigned int cpu);
136extern unsigned int get_cpei_target_cpu(void);
137extern void prefill_possible_map(void);
138#ifdef CONFIG_ACPI_HOTPLUG_CPU
139extern int additional_cpus;
140#else
141#define additional_cpus 0
142#endif
143
144#ifdef CONFIG_ACPI_NUMA
145#if MAX_NUMNODES > 256
146#define MAX_PXM_DOMAINS MAX_NUMNODES
147#else
148#define MAX_PXM_DOMAINS (256)
149#endif
150extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
151extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
152#endif
153
154static inline bool arch_has_acpi_pdc(void) { return true; }
155static inline void arch_acpi_set_pdc_bits(u32 *buf)
156{
157 buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
158}
159
160#define acpi_unlazy_tlb(x)
161
162#ifdef CONFIG_ACPI_NUMA
163extern cpumask_t early_cpu_possible_map;
164#define for_each_possible_early_cpu(cpu) \
165 for_each_cpu_mask((cpu), early_cpu_possible_map)
166
167static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
168{
169 int low_cpu, high_cpu;
170 int cpu;
171 int next_nid = 0;
172
173 low_cpu = cpus_weight(early_cpu_possible_map);
174
175 high_cpu = max(low_cpu, min_cpus);
176 high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
177
178 for (cpu = low_cpu; cpu < high_cpu; cpu++) {
179 cpu_set(cpu, early_cpu_possible_map);
180 if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
181 node_cpuid[cpu].nid = next_nid;
182 next_nid++;
183 if (next_nid >= num_online_nodes())
184 next_nid = 0;
185 }
186 }
187}
188#endif /* CONFIG_ACPI_NUMA */
189
190#endif /*__KERNEL__*/
191
192#endif /*_ASM_ACPI_H*/
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/system.h>
36#include <asm/numa.h>
37
38#define COMPILER_DEPENDENT_INT64 long
39#define COMPILER_DEPENDENT_UINT64 unsigned long
40
41/*
42 * Calling conventions:
43 *
44 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
45 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
46 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
47 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
48 */
49#define ACPI_SYSTEM_XFACE
50#define ACPI_EXTERNAL_XFACE
51#define ACPI_INTERNAL_XFACE
52#define ACPI_INTERNAL_VAR_XFACE
53
54/* Asm macros */
55
56#define ACPI_ASM_MACROS
57#define BREAKPOINT3
58#define ACPI_DISABLE_IRQS() local_irq_disable()
59#define ACPI_ENABLE_IRQS() local_irq_enable()
60#define ACPI_FLUSH_CPU_CACHE()
61
62static inline int
63ia64_acpi_acquire_global_lock (unsigned int *lock)
64{
65 unsigned int old, new, val;
66 do {
67 old = *lock;
68 new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
69 val = ia64_cmpxchg4_acq(lock, new, old);
70 } while (unlikely (val != old));
71 return (new < 3) ? -1 : 0;
72}
73
74static inline int
75ia64_acpi_release_global_lock (unsigned int *lock)
76{
77 unsigned int old, new, val;
78 do {
79 old = *lock;
80 new = old & ~0x3;
81 val = ia64_cmpxchg4_acq(lock, new, old);
82 } while (unlikely (val != old));
83 return old & 0x1;
84}
85
86#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
87 ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
88
89#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
90 ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
91
92#ifdef CONFIG_ACPI
93#define acpi_disabled 0 /* ACPI always enabled on IA64 */
94#define acpi_noirq 0 /* ACPI always enabled on IA64 */
95#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
96#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
97#endif
98#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
99static inline void disable_acpi(void) { }
100static inline void pci_acpi_crs_quirks(void) { }
101
102#ifdef CONFIG_IA64_GENERIC
103const char *acpi_get_sysname (void);
104#else
105static inline const char *acpi_get_sysname (void)
106{
107# if defined (CONFIG_IA64_HP_SIM)
108 return "hpsim";
109# elif defined (CONFIG_IA64_HP_ZX1)
110 return "hpzx1";
111# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
112 return "hpzx1_swiotlb";
113# elif defined (CONFIG_IA64_SGI_SN2)
114 return "sn2";
115# elif defined (CONFIG_IA64_SGI_UV)
116 return "uv";
117# elif defined (CONFIG_IA64_DIG)
118 return "dig";
119# elif defined (CONFIG_IA64_XEN_GUEST)
120 return "xen";
121# elif defined(CONFIG_IA64_DIG_VTD)
122 return "dig_vtd";
123# else
124# error Unknown platform. Fix acpi.c.
125# endif
126}
127#endif
128int acpi_request_vector (u32 int_type);
129int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
130
131/* Low-level suspend routine. */
132extern int acpi_suspend_lowlevel(void);
133
134extern unsigned long acpi_wakeup_address;
135
136/*
137 * Record the cpei override flag and current logical cpu. This is
138 * useful for CPU removal.
139 */
140extern unsigned int can_cpei_retarget(void);
141extern unsigned int is_cpu_cpei_target(unsigned int cpu);
142extern void set_cpei_target_cpu(unsigned int cpu);
143extern unsigned int get_cpei_target_cpu(void);
144extern void prefill_possible_map(void);
145#ifdef CONFIG_ACPI_HOTPLUG_CPU
146extern int additional_cpus;
147#else
148#define additional_cpus 0
149#endif
150
151#ifdef CONFIG_ACPI_NUMA
152#if MAX_NUMNODES > 256
153#define MAX_PXM_DOMAINS MAX_NUMNODES
154#else
155#define MAX_PXM_DOMAINS (256)
156#endif
157extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
158extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
159#endif
160
161static inline bool arch_has_acpi_pdc(void) { return true; }
162static inline void arch_acpi_set_pdc_bits(u32 *buf)
163{
164 buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
165}
166
167#define acpi_unlazy_tlb(x)
168
169#ifdef CONFIG_ACPI_NUMA
170extern cpumask_t early_cpu_possible_map;
171#define for_each_possible_early_cpu(cpu) \
172 for_each_cpu_mask((cpu), early_cpu_possible_map)
173
174static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
175{
176 int low_cpu, high_cpu;
177 int cpu;
178 int next_nid = 0;
179
180 low_cpu = cpus_weight(early_cpu_possible_map);
181
182 high_cpu = max(low_cpu, min_cpus);
183 high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
184
185 for (cpu = low_cpu; cpu < high_cpu; cpu++) {
186 cpu_set(cpu, early_cpu_possible_map);
187 if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
188 node_cpuid[cpu].nid = next_nid;
189 next_nid++;
190 if (next_nid >= num_online_nodes())
191 next_nid = 0;
192 }
193 }
194}
195#endif /* CONFIG_ACPI_NUMA */
196
197#endif /*__KERNEL__*/
198
199#endif /*_ASM_ACPI_H*/