Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/travis/linux...
[sfrench/cifs-2.6.git] / arch / x86 / include / asm / mach-default / mach_ipi.h
1 #ifndef _ASM_X86_MACH_DEFAULT_MACH_IPI_H
2 #define _ASM_X86_MACH_DEFAULT_MACH_IPI_H
3
4 /* Avoid include hell */
5 #define NMI_VECTOR 0x02
6
7 void send_IPI_mask_bitmask(const struct cpumask *mask, int vector);
8 void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
9 void __send_IPI_shortcut(unsigned int shortcut, int vector);
10
11 extern int no_broadcast;
12
13 #ifdef CONFIG_X86_64
14 #include <asm/genapic.h>
15 #define send_IPI_mask (genapic->send_IPI_mask)
16 #define send_IPI_mask_allbutself (genapic->send_IPI_mask_allbutself)
17 #else
18 static inline void send_IPI_mask(const struct cpumask *mask, int vector)
19 {
20         send_IPI_mask_bitmask(mask, vector);
21 }
22 void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
23 #endif
24
25 static inline void __local_send_IPI_allbutself(int vector)
26 {
27         if (no_broadcast || vector == NMI_VECTOR)
28                 send_IPI_mask_allbutself(cpu_online_mask, vector);
29         else
30                 __send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
31 }
32
33 static inline void __local_send_IPI_all(int vector)
34 {
35         if (no_broadcast || vector == NMI_VECTOR)
36                 send_IPI_mask(cpu_online_mask, vector);
37         else
38                 __send_IPI_shortcut(APIC_DEST_ALLINC, vector);
39 }
40
41 #ifdef CONFIG_X86_64
42 #define send_IPI_allbutself (genapic->send_IPI_allbutself)
43 #define send_IPI_all (genapic->send_IPI_all)
44 #else
45 static inline void send_IPI_allbutself(int vector)
46 {
47         /*
48          * if there are no other CPUs in the system then we get an APIC send 
49          * error if we try to broadcast, thus avoid sending IPIs in this case.
50          */
51         if (!(num_online_cpus() > 1))
52                 return;
53
54         __local_send_IPI_allbutself(vector);
55         return;
56 }
57
58 static inline void send_IPI_all(int vector)
59 {
60         __local_send_IPI_all(vector);
61 }
62 #endif
63
64 #endif /* _ASM_X86_MACH_DEFAULT_MACH_IPI_H */