direct-io.hg

view linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/smp.h @ 11509:2e6c10dc7c0b

[POWERPC][XEN] make sure put_domain() is called in case of allocate_rma() failuer

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
author Jimi Xenidis <jimix@watson.ibm.com>
date Tue Sep 12 10:53:46 2006 -0400 (2006-09-12)
parents 5a63f675107c
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/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 (*mtrr_hook) (void);
41 extern void zap_low_mappings (void);
42 extern void lock_ipi_call_lock(void);
43 extern void unlock_ipi_call_lock(void);
45 #define MAX_APICID 256
46 extern u8 x86_cpu_to_apicid[];
48 #define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu]
50 #ifdef CONFIG_HOTPLUG_CPU
51 extern void cpu_exit_clear(void);
52 extern void cpu_uninit(void);
53 #endif
55 /*
56 * This function is needed by all SMP systems. It must _always_ be valid
57 * from the initial startup. We map APIC_BASE very early in page_setup(),
58 * so this is correct in the x86 case.
59 */
60 #define raw_smp_processor_id() (current_thread_info()->cpu)
62 extern cpumask_t cpu_possible_map;
63 #define cpu_callin_map cpu_possible_map
65 /* We don't mark CPUs online until __cpu_up(), so we need another measure */
66 static inline int num_booting_cpus(void)
67 {
68 return cpus_weight(cpu_possible_map);
69 }
71 #ifdef CONFIG_X86_LOCAL_APIC
73 #ifdef APIC_DEFINITION
74 extern int hard_smp_processor_id(void);
75 #else
76 #include <mach_apicdef.h>
77 static inline int hard_smp_processor_id(void)
78 {
79 /* we don't want to mark this access volatile - bad code generation */
80 return GET_APIC_ID(*(unsigned long *)(APIC_BASE+APIC_ID));
81 }
82 #endif
84 static __inline int logical_smp_processor_id(void)
85 {
86 /* we don't want to mark this access volatile - bad code generation */
87 return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR));
88 }
90 #endif
92 extern int __cpu_disable(void);
93 extern void __cpu_die(unsigned int cpu);
94 #endif /* !__ASSEMBLY__ */
96 #else /* CONFIG_SMP */
98 #define cpu_physical_id(cpu) boot_cpu_physical_apicid
100 #define NO_PROC_ID 0xFF /* No processor magic marker */
102 #endif
103 #endif