ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/smp.h @ 11221:7c9d7fc3dce5

[HVM] Fix SMBIOS entry point copy destination.
Spotted by Xiaowei Yang <xiaowei.yang@intel.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@localhost.localdomain
date Sat Aug 19 12:06:36 2006 +0100 (2006-08-19)
parents 1ca3d63e7008
children 4fad820a2233
line source
1 #ifndef __ASM_SMP_H
2 #define __ASM_SMP_H
4 /*
5 * We need the APIC definitions automatically as part of 'smp.h'
6 */
7 #ifndef __ASSEMBLY__
8 #include <linux/config.h>
9 #include <linux/threads.h>
10 #include <linux/cpumask.h>
11 #include <linux/bitops.h>
12 extern int disable_apic;
13 #endif
15 #ifdef CONFIG_X86_LOCAL_APIC
16 #ifndef __ASSEMBLY__
17 #include <asm/fixmap.h>
18 #include <asm/mpspec.h>
19 #ifdef CONFIG_X86_IO_APIC
20 #include <asm/io_apic.h>
21 #endif
22 #include <asm/apic.h>
23 #include <asm/thread_info.h>
24 #endif
25 #endif
27 #ifdef CONFIG_SMP
28 #ifndef ASSEMBLY
30 #include <asm/pda.h>
32 struct pt_regs;
34 extern cpumask_t cpu_present_mask;
35 extern cpumask_t cpu_possible_map;
36 extern cpumask_t cpu_online_map;
37 extern cpumask_t cpu_initialized;
39 /*
40 * Private routines/data
41 */
43 extern void smp_alloc_memory(void);
44 extern volatile unsigned long smp_invalidate_needed;
45 extern int pic_mode;
46 extern void lock_ipi_call_lock(void);
47 extern void unlock_ipi_call_lock(void);
48 extern int smp_num_siblings;
49 extern void smp_send_reschedule(int cpu);
50 void smp_stop_cpu(void);
51 extern int smp_call_function_single(int cpuid, void (*func) (void *info),
52 void *info, int retry, int wait);
54 extern cpumask_t cpu_sibling_map[NR_CPUS];
55 extern cpumask_t cpu_core_map[NR_CPUS];
56 extern int phys_proc_id[NR_CPUS];
57 extern int cpu_core_id[NR_CPUS];
59 #define SMP_TRAMPOLINE_BASE 0x6000
61 /*
62 * On x86 all CPUs are mapped 1:1 to the APIC space.
63 * This simplifies scheduling and IPI sending and
64 * compresses data structures.
65 */
67 static inline int num_booting_cpus(void)
68 {
69 return cpus_weight(cpu_possible_map);
70 }
72 #define raw_smp_processor_id() read_pda(cpunumber)
74 #ifdef CONFIG_X86_LOCAL_APIC
75 static inline int hard_smp_processor_id(void)
76 {
77 /* we don't want to mark this access volatile - bad code generation */
78 return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID));
79 }
80 #endif
82 extern int safe_smp_processor_id(void);
83 extern int __cpu_disable(void);
84 extern void __cpu_die(unsigned int cpu);
85 extern void prefill_possible_map(void);
86 extern unsigned num_processors;
87 extern unsigned disabled_cpus;
89 #endif /* !ASSEMBLY */
91 #define NO_PROC_ID 0xFF /* No processor magic marker */
93 #endif
95 #ifndef ASSEMBLY
96 /*
97 * Some lowlevel functions might want to know about
98 * the real APIC ID <-> CPU # mapping.
99 */
100 extern u8 x86_cpu_to_apicid[NR_CPUS]; /* physical ID */
101 extern u8 x86_cpu_to_log_apicid[NR_CPUS];
102 extern u8 bios_cpu_apicid[];
104 #ifdef CONFIG_X86_LOCAL_APIC
105 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
106 {
107 return cpus_addr(cpumask)[0];
108 }
110 static inline int cpu_present_to_apicid(int mps_cpu)
111 {
112 if (mps_cpu < NR_CPUS)
113 return (int)bios_cpu_apicid[mps_cpu];
114 else
115 return BAD_APICID;
116 }
117 #endif
119 #endif /* !ASSEMBLY */
121 #ifndef CONFIG_SMP
122 #define stack_smp_processor_id() 0
123 #define safe_smp_processor_id() 0
124 #define cpu_logical_map(x) (x)
125 #else
126 #include <asm/thread_info.h>
127 #define stack_smp_processor_id() \
128 ({ \
129 struct thread_info *ti; \
130 __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
131 ti->cpu; \
132 })
133 #endif
135 #ifndef __ASSEMBLY__
136 #ifdef CONFIG_X86_LOCAL_APIC
137 static __inline int logical_smp_processor_id(void)
138 {
139 /* we don't want to mark this access volatile - bad code generation */
140 return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR));
141 }
142 #endif
143 #endif
145 #ifdef CONFIG_SMP
146 #define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu]
147 #else
148 #define cpu_physical_id(cpu) boot_cpu_id
149 #endif
151 #endif