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>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
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
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
31 #include <acpi/pdc_intel.h>
33 #include <linux/init.h>
34 #include <linux/numa.h>
37 #define COMPILER_DEPENDENT_INT64 long
38 #define COMPILER_DEPENDENT_UINT64 unsigned long
41 * Calling conventions:
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
48 #define ACPI_SYSTEM_XFACE
49 #define ACPI_EXTERNAL_XFACE
50 #define ACPI_INTERNAL_XFACE
51 #define ACPI_INTERNAL_VAR_XFACE
55 #define ACPI_FLUSH_CPU_CACHE()
58 ia64_acpi_acquire_global_lock (unsigned int *lock)
60 unsigned int old, new, val;
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;
70 ia64_acpi_release_global_lock (unsigned int *lock)
72 unsigned int old, new, val;
76 val = ia64_cmpxchg4_acq(lock, new, old);
77 } while (unlikely (val != old));
81 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
82 ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
84 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
85 ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
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 */
93 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
94 static inline void disable_acpi(void) { }
95 static inline void pci_acpi_crs_quirks(void) { }
97 #ifdef CONFIG_IA64_GENERIC
98 const char *acpi_get_sysname (void);
100 static inline const char *acpi_get_sysname (void)
102 # if defined (CONFIG_IA64_HP_SIM)
104 # elif defined (CONFIG_IA64_HP_ZX1)
106 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
107 return "hpzx1_swiotlb";
108 # elif defined (CONFIG_IA64_SGI_SN2)
110 # elif defined (CONFIG_IA64_SGI_UV)
112 # elif defined (CONFIG_IA64_DIG)
114 # elif defined(CONFIG_IA64_DIG_VTD)
117 # error Unknown platform. Fix acpi.c.
121 int acpi_request_vector (u32 int_type);
122 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
124 /* Low-level suspend routine. */
125 extern int acpi_suspend_lowlevel(void);
127 extern unsigned long acpi_wakeup_address;
130 * Record the cpei override flag and current logical cpu. This is
131 * useful for CPU removal.
133 extern unsigned int can_cpei_retarget(void);
134 extern unsigned int is_cpu_cpei_target(unsigned int cpu);
135 extern void set_cpei_target_cpu(unsigned int cpu);
136 extern unsigned int get_cpei_target_cpu(void);
137 extern void prefill_possible_map(void);
138 #ifdef CONFIG_ACPI_HOTPLUG_CPU
139 extern int additional_cpus;
141 #define additional_cpus 0
144 #ifdef CONFIG_ACPI_NUMA
145 #if MAX_NUMNODES > 256
146 #define MAX_PXM_DOMAINS MAX_NUMNODES
148 #define MAX_PXM_DOMAINS (256)
150 extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
151 extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
154 static inline bool arch_has_acpi_pdc(void) { return true; }
155 static inline void arch_acpi_set_pdc_bits(u32 *buf)
157 buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
160 #define acpi_unlazy_tlb(x)
162 #ifdef CONFIG_ACPI_NUMA
163 extern cpumask_t early_cpu_possible_map;
164 #define for_each_possible_early_cpu(cpu) \
165 for_each_cpu_mask((cpu), early_cpu_possible_map)
167 static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
169 int low_cpu, high_cpu;
173 low_cpu = cpus_weight(early_cpu_possible_map);
175 high_cpu = max(low_cpu, min_cpus);
176 high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
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;
183 if (next_nid >= num_online_nodes())
188 #endif /* CONFIG_ACPI_NUMA */
190 #endif /*__KERNEL__*/
192 #endif /*_ASM_ACPI_H*/