xref: /openbmc/linux/arch/ia64/include/asm/acpi.h (revision d2999e1b)
1 /*
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>
6  *
7  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8  *
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.
13  *
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.
18  *
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
22  *
23  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24  */
25 
26 #ifndef _ASM_ACPI_H
27 #define _ASM_ACPI_H
28 
29 #ifdef __KERNEL__
30 
31 #include <acpi/pdc_intel.h>
32 
33 #include <linux/init.h>
34 #include <linux/numa.h>
35 #include <asm/numa.h>
36 
37 #ifdef	CONFIG_ACPI
38 extern int acpi_lapic;
39 #define acpi_disabled 0	/* ACPI always enabled on IA64 */
40 #define acpi_noirq 0	/* ACPI always enabled on IA64 */
41 #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
42 #define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
43 #endif
44 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
45 static inline void disable_acpi(void) { }
46 
47 #ifdef CONFIG_IA64_GENERIC
48 const char *acpi_get_sysname (void);
49 #else
50 static inline const char *acpi_get_sysname (void)
51 {
52 # if defined (CONFIG_IA64_HP_SIM)
53 	return "hpsim";
54 # elif defined (CONFIG_IA64_HP_ZX1)
55 	return "hpzx1";
56 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
57 	return "hpzx1_swiotlb";
58 # elif defined (CONFIG_IA64_SGI_SN2)
59 	return "sn2";
60 # elif defined (CONFIG_IA64_SGI_UV)
61 	return "uv";
62 # elif defined (CONFIG_IA64_DIG)
63 	return "dig";
64 # elif defined(CONFIG_IA64_DIG_VTD)
65 	return "dig_vtd";
66 # else
67 #	error Unknown platform.  Fix acpi.c.
68 # endif
69 }
70 #endif
71 int acpi_request_vector (u32 int_type);
72 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
73 
74 /* Low-level suspend routine. */
75 extern int acpi_suspend_lowlevel(void);
76 
77 extern unsigned long acpi_wakeup_address;
78 
79 /*
80  * Record the cpei override flag and current logical cpu. This is
81  * useful for CPU removal.
82  */
83 extern unsigned int can_cpei_retarget(void);
84 extern unsigned int is_cpu_cpei_target(unsigned int cpu);
85 extern void set_cpei_target_cpu(unsigned int cpu);
86 extern unsigned int get_cpei_target_cpu(void);
87 extern void prefill_possible_map(void);
88 #ifdef CONFIG_ACPI_HOTPLUG_CPU
89 extern int additional_cpus;
90 #else
91 #define additional_cpus 0
92 #endif
93 
94 #ifdef CONFIG_ACPI_NUMA
95 #if MAX_NUMNODES > 256
96 #define MAX_PXM_DOMAINS MAX_NUMNODES
97 #else
98 #define MAX_PXM_DOMAINS (256)
99 #endif
100 extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
101 extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
102 #endif
103 
104 static inline bool arch_has_acpi_pdc(void) { return true; }
105 static inline void arch_acpi_set_pdc_bits(u32 *buf)
106 {
107 	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
108 }
109 
110 #define acpi_unlazy_tlb(x)
111 
112 #ifdef CONFIG_ACPI_NUMA
113 extern cpumask_t early_cpu_possible_map;
114 #define for_each_possible_early_cpu(cpu)  \
115 	for_each_cpu_mask((cpu), early_cpu_possible_map)
116 
117 static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
118 {
119 	int low_cpu, high_cpu;
120 	int cpu;
121 	int next_nid = 0;
122 
123 	low_cpu = cpus_weight(early_cpu_possible_map);
124 
125 	high_cpu = max(low_cpu, min_cpus);
126 	high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
127 
128 	for (cpu = low_cpu; cpu < high_cpu; cpu++) {
129 		cpu_set(cpu, early_cpu_possible_map);
130 		if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
131 			node_cpuid[cpu].nid = next_nid;
132 			next_nid++;
133 			if (next_nid >= num_online_nodes())
134 				next_nid = 0;
135 		}
136 	}
137 }
138 #endif /* CONFIG_ACPI_NUMA */
139 
140 #endif /*__KERNEL__*/
141 
142 #endif /*_ASM_ACPI_H*/
143