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1da177e4 LT |
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 <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 | ||
61 | static inline int | |
62 | ia64_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 | ||
73 | static inline int | |
74 | ia64_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 */ | |
95 | static inline void disable_acpi(void) { } | |
96 | ||
97 | const char *acpi_get_sysname (void); | |
98 | int acpi_request_vector (u32 int_type); | |
99 | int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); | |
100 | ||
55e59c51 AR |
101 | /* |
102 | * Record the cpei override flag and current logical cpu. This is | |
103 | * useful for CPU removal. | |
104 | */ | |
105 | extern unsigned int can_cpei_retarget(void); | |
106 | extern unsigned int is_cpu_cpei_target(unsigned int cpu); | |
107 | extern void set_cpei_target_cpu(unsigned int cpu); | |
108 | extern unsigned int get_cpei_target_cpu(void); | |
a6b14fa6 AR |
109 | extern void prefill_possible_map(void); |
110 | extern int additional_cpus; | |
55e59c51 | 111 | |
1da177e4 | 112 | #ifdef CONFIG_ACPI_NUMA |
0d9adec5 JS |
113 | #if MAX_NUMNODES > 256 |
114 | #define MAX_PXM_DOMAINS MAX_NUMNODES | |
3ad5ef8b | 115 | #else |
1da177e4 | 116 | #define MAX_PXM_DOMAINS (256) |
3ad5ef8b | 117 | #endif |
1da177e4 LT |
118 | extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS]; |
119 | extern int __initdata nid_to_pxm_map[MAX_NUMNODES]; | |
120 | #endif | |
121 | ||
122 | extern u16 ia64_acpiid_to_sapicid[]; | |
123 | ||
4db8699b VP |
124 | /* |
125 | * Refer Intel ACPI _PDC support document for bit definitions | |
126 | */ | |
127 | #define ACPI_PDC_EST_CAPABILITY_SMP 0x8 | |
128 | ||
1da177e4 LT |
129 | #endif /*__KERNEL__*/ |
130 | ||
131 | #endif /*_ASM_ACPI_H*/ |