ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-xen/asm-i386/smp.h @ 7431:aabc33c3c0ac

Fix -xen builds.
Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@firebug.cl.cam.ac.uk
date Tue Oct 18 19:28:16 2005 +0100 (2005-10-18)
parents 3d27ee7da0c1
children
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/kernel.h>
10 #include <linux/threads.h>
11 #include <linux/cpumask.h>
12 #endif
14 #ifdef CONFIG_X86_LOCAL_APIC
15 #ifndef __ASSEMBLY__
16 #include <asm/fixmap.h>
17 #include <asm/bitops.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 #endif
24 #endif
26 #define BAD_APICID 0xFFu
27 #ifdef CONFIG_SMP
28 #ifndef __ASSEMBLY__
30 /*
31 * Private routines/data
32 */
34 extern void smp_alloc_memory(void);
35 extern int pic_mode;
36 extern int smp_num_siblings;
37 extern cpumask_t cpu_sibling_map[];
38 extern cpumask_t cpu_core_map[];
40 extern void smp_flush_tlb(void);
41 extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs);
42 extern void smp_invalidate_rcv(void); /* Process an NMI */
43 extern void (*mtrr_hook) (void);
44 extern void zap_low_mappings (void);
46 #define MAX_APICID 256
47 extern u8 x86_cpu_to_apicid[];
49 /*
50 * This function is needed by all SMP systems. It must _always_ be valid
51 * from the initial startup. We map APIC_BASE very early in page_setup(),
52 * so this is correct in the x86 case.
53 */
54 #define __smp_processor_id() (current_thread_info()->cpu)
56 extern cpumask_t cpu_possible_map;
57 #define cpu_callin_map cpu_possible_map
59 /* We don't mark CPUs online until __cpu_up(), so we need another measure */
60 static inline int num_booting_cpus(void)
61 {
62 return cpus_weight(cpu_possible_map);
63 }
65 #ifdef CONFIG_X86_LOCAL_APIC
67 #ifdef APIC_DEFINITION
68 extern int hard_smp_processor_id(void);
69 #else
70 #include <mach_apicdef.h>
71 static inline int hard_smp_processor_id(void)
72 {
73 /* we don't want to mark this access volatile - bad code generation */
74 return GET_APIC_ID(*(unsigned long *)(APIC_BASE+APIC_ID));
75 }
76 #endif
78 static __inline int logical_smp_processor_id(void)
79 {
80 /* we don't want to mark this access volatile - bad code generation */
81 return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR));
82 }
84 #endif
86 extern int __cpu_disable(void);
87 extern void __cpu_die(unsigned int cpu);
88 #endif /* !__ASSEMBLY__ */
90 #define NO_PROC_ID 0xFF /* No processor magic marker */
92 #endif
93 #endif