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Linux kernel mirror (for testing)
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linux
1/*
2 * asm-ia64/acpi.h
3 *
4 * Copyright (C) 1999 VA Linux Systems
5 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
6 * Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
7 * Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
8 *
9 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
26 */
27
28#ifndef _ASM_ACPI_H
29#define _ASM_ACPI_H
30
31#ifdef __KERNEL__
32
33#include <acpi/pdc_intel.h>
34
35#include <linux/init.h>
36#include <linux/numa.h>
37#include <asm/system.h>
38
39#define COMPILER_DEPENDENT_INT64 long
40#define COMPILER_DEPENDENT_UINT64 unsigned long
41
42/*
43 * Calling conventions:
44 *
45 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
46 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
47 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
48 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
49 */
50#define ACPI_SYSTEM_XFACE
51#define ACPI_EXTERNAL_XFACE
52#define ACPI_INTERNAL_XFACE
53#define ACPI_INTERNAL_VAR_XFACE
54
55/* Asm macros */
56
57#define ACPI_ASM_MACROS
58#define BREAKPOINT3
59#define ACPI_DISABLE_IRQS() local_irq_disable()
60#define ACPI_ENABLE_IRQS() local_irq_enable()
61#define ACPI_FLUSH_CPU_CACHE()
62
63static inline int
64ia64_acpi_acquire_global_lock (unsigned int *lock)
65{
66 unsigned int old, new, val;
67 do {
68 old = *lock;
69 new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
70 val = ia64_cmpxchg4_acq(lock, new, old);
71 } while (unlikely (val != old));
72 return (new < 3) ? -1 : 0;
73}
74
75static inline int
76ia64_acpi_release_global_lock (unsigned int *lock)
77{
78 unsigned int old, new, val;
79 do {
80 old = *lock;
81 new = old & ~0x3;
82 val = ia64_cmpxchg4_acq(lock, new, old);
83 } while (unlikely (val != old));
84 return old & 0x1;
85}
86
87#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
88 ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
89
90#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
91 ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
92
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#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
98static inline void disable_acpi(void) { }
99
100const char *acpi_get_sysname (void);
101int acpi_request_vector (u32 int_type);
102int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
103
104/* routines for saving/restoring kernel state */
105extern int acpi_save_state_mem(void);
106extern void acpi_restore_state_mem(void);
107extern unsigned long acpi_wakeup_address;
108
109/*
110 * Record the cpei override flag and current logical cpu. This is
111 * useful for CPU removal.
112 */
113extern unsigned int can_cpei_retarget(void);
114extern unsigned int is_cpu_cpei_target(unsigned int cpu);
115extern void set_cpei_target_cpu(unsigned int cpu);
116extern unsigned int get_cpei_target_cpu(void);
117extern void prefill_possible_map(void);
118extern int additional_cpus;
119
120#ifdef CONFIG_ACPI_NUMA
121#if MAX_NUMNODES > 256
122#define MAX_PXM_DOMAINS MAX_NUMNODES
123#else
124#define MAX_PXM_DOMAINS (256)
125#endif
126extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
127extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
128#endif
129
130#define acpi_unlazy_tlb(x)
131
132#endif /*__KERNEL__*/
133
134#endif /*_ASM_ACPI_H*/