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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 <linux/init.h>
34#include <linux/numa.h>
35#include <asm/system.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_ASM_MACROS
56#define BREAKPOINT3
57#define ACPI_DISABLE_IRQS() local_irq_disable()
58#define ACPI_ENABLE_IRQS() local_irq_enable()
59#define ACPI_FLUSH_CPU_CACHE()
60
61static inline int
62ia64_acpi_acquire_global_lock (unsigned int *lock)
63{
64 unsigned int old, new, val;
65 do {
66 old = *lock;
67 new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
68 val = ia64_cmpxchg4_acq(lock, new, old);
69 } while (unlikely (val != old));
70 return (new < 3) ? -1 : 0;
71}
72
73static inline int
74ia64_acpi_release_global_lock (unsigned int *lock)
75{
76 unsigned int old, new, val;
77 do {
78 old = *lock;
79 new = old & ~0x3;
80 val = ia64_cmpxchg4_acq(lock, new, old);
81 } while (unlikely (val != old));
82 return old & 0x1;
83}
84
85#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
86 ((Acq) = ia64_acpi_acquire_global_lock((unsigned int *) GLptr))
87
88#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
89 ((Acq) = ia64_acpi_release_global_lock((unsigned int *) GLptr))
90
91#define acpi_disabled 0 /* ACPI always enabled on IA64 */
92#define acpi_noirq 0 /* ACPI always enabled on IA64 */
93#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
94#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
95static inline void disable_acpi(void) { }
96
97const char *acpi_get_sysname (void);
98int acpi_request_vector (u32 int_type);
99int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
100
Ashok Raj55e59c52005-03-31 22:51:10 -0500101/*
102 * Record the cpei override flag and current logical cpu. This is
103 * useful for CPU removal.
104 */
105extern unsigned int can_cpei_retarget(void);
106extern unsigned int is_cpu_cpei_target(unsigned int cpu);
107extern void set_cpei_target_cpu(unsigned int cpu);
108extern unsigned int get_cpei_target_cpu(void);
109
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110#ifdef CONFIG_ACPI_NUMA
111/* Proximity bitmap length; _PXM is at most 255 (8 bit)*/
112#define MAX_PXM_DOMAINS (256)
113extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
114extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
115#endif
116
117extern u16 ia64_acpiid_to_sapicid[];
118
Venkatesh Pallipadi4db86992005-07-29 16:15:00 -0700119/*
120 * Refer Intel ACPI _PDC support document for bit definitions
121 */
122#define ACPI_PDC_EST_CAPABILITY_SMP 0x8
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124#endif /*__KERNEL__*/
125
126#endif /*_ASM_ACPI_H*/