Commit | Line | Data |
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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 | ||
35729449 VP |
33 | #include <acpi/pdc_intel.h> |
34 | ||
1da177e4 LT |
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 | ||
63 | static inline int | |
64 | ia64_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 | ||
75 | static inline int | |
76 | ia64_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 | ||
ad71860a AS |
87 | #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ |
88 | ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock)) | |
1da177e4 | 89 | |
ad71860a AS |
90 | #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ |
91 | ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock)) | |
1da177e4 LT |
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 */ | |
c1c30634 | 97 | #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */ |
1da177e4 LT |
98 | static inline void disable_acpi(void) { } |
99 | ||
100 | const char *acpi_get_sysname (void); | |
101 | int acpi_request_vector (u32 int_type); | |
102 | int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); | |
103 | ||
e8b2fd01 LB |
104 | /* routines for saving/restoring kernel state */ |
105 | extern int acpi_save_state_mem(void); | |
106 | extern void acpi_restore_state_mem(void); | |
107 | extern unsigned long acpi_wakeup_address; | |
108 | ||
55e59c51 AR |
109 | /* |
110 | * Record the cpei override flag and current logical cpu. This is | |
111 | * useful for CPU removal. | |
112 | */ | |
113 | extern unsigned int can_cpei_retarget(void); | |
114 | extern unsigned int is_cpu_cpei_target(unsigned int cpu); | |
115 | extern void set_cpei_target_cpu(unsigned int cpu); | |
116 | extern unsigned int get_cpei_target_cpu(void); | |
a6b14fa6 AR |
117 | extern void prefill_possible_map(void); |
118 | extern int additional_cpus; | |
55e59c51 | 119 | |
1da177e4 | 120 | #ifdef CONFIG_ACPI_NUMA |
0d9adec5 JS |
121 | #if MAX_NUMNODES > 256 |
122 | #define MAX_PXM_DOMAINS MAX_NUMNODES | |
3ad5ef8b | 123 | #else |
1da177e4 | 124 | #define MAX_PXM_DOMAINS (256) |
3ad5ef8b | 125 | #endif |
1da177e4 LT |
126 | extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS]; |
127 | extern int __initdata nid_to_pxm_map[MAX_NUMNODES]; | |
128 | #endif | |
129 | ||
1da177e4 LT |
130 | #endif /*__KERNEL__*/ |
131 | ||
132 | #endif /*_ASM_ACPI_H*/ |