diff options
-rw-r--r-- | arch/s390/include/asm/smp.h | 54 |
1 files changed, 10 insertions, 44 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index a868b272c257..2ab1141eeb50 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h | |||
@@ -1,57 +1,22 @@ | |||
1 | /* | 1 | /* |
2 | * include/asm-s390/smp.h | 2 | * Copyright IBM Corp. 1999,2009 |
3 | * | 3 | * Author(s): Denis Joseph Barrow, |
4 | * S390 version | 4 | * Martin Schwidefsky <schwidefsky@de.ibm.com>, |
5 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | 5 | * Heiko Carstens <heiko.carstens@de.ibm.com>, |
6 | * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com), | ||
7 | * Martin Schwidefsky (schwidefsky@de.ibm.com) | ||
8 | * Heiko Carstens (heiko.carstens@de.ibm.com) | ||
9 | */ | 6 | */ |
10 | #ifndef __ASM_SMP_H | 7 | #ifndef __ASM_SMP_H |
11 | #define __ASM_SMP_H | 8 | #define __ASM_SMP_H |
12 | 9 | ||
13 | #include <linux/threads.h> | 10 | #ifdef CONFIG_SMP |
14 | #include <linux/cpumask.h> | ||
15 | #include <linux/bitops.h> | ||
16 | 11 | ||
17 | #if defined(__KERNEL__) && defined(CONFIG_SMP) && !defined(__ASSEMBLY__) | ||
18 | |||
19 | #include <asm/lowcore.h> | ||
20 | #include <asm/sigp.h> | ||
21 | #include <asm/ptrace.h> | ||
22 | #include <asm/system.h> | 12 | #include <asm/system.h> |
23 | 13 | #include <asm/sigp.h> | |
24 | /* | ||
25 | s390 specific smp.c headers | ||
26 | */ | ||
27 | typedef struct | ||
28 | { | ||
29 | int intresting; | ||
30 | sigp_ccode ccode; | ||
31 | __u32 status; | ||
32 | __u16 cpu; | ||
33 | } sigp_info; | ||
34 | 14 | ||
35 | extern void machine_restart_smp(char *); | 15 | extern void machine_restart_smp(char *); |
36 | extern void machine_halt_smp(void); | 16 | extern void machine_halt_smp(void); |
37 | extern void machine_power_off_smp(void); | 17 | extern void machine_power_off_smp(void); |
38 | 18 | ||
39 | #define NO_PROC_ID 0xFF /* No processor magic marker */ | ||
40 | |||
41 | /* | ||
42 | * This magic constant controls our willingness to transfer | ||
43 | * a process across CPUs. Such a transfer incurs misses on the L1 | ||
44 | * cache, and on a P6 or P5 with multiple L2 caches L2 hits. My | ||
45 | * gut feeling is this will vary by board in value. For a board | ||
46 | * with separate L2 cache it probably depends also on the RSS, and | ||
47 | * for a board with shared L2 cache it ought to decay fast as other | ||
48 | * processes are run. | ||
49 | */ | ||
50 | |||
51 | #define PROC_CHANGE_PENALTY 20 /* Schedule penalty */ | ||
52 | |||
53 | #define raw_smp_processor_id() (S390_lowcore.cpu_nr) | 19 | #define raw_smp_processor_id() (S390_lowcore.cpu_nr) |
54 | #define cpu_logical_map(cpu) (cpu) | ||
55 | 20 | ||
56 | extern int __cpu_disable (void); | 21 | extern int __cpu_disable (void); |
57 | extern void __cpu_die (unsigned int cpu); | 22 | extern void __cpu_die (unsigned int cpu); |
@@ -64,7 +29,9 @@ extern int smp_cpu_polarization[]; | |||
64 | extern void arch_send_call_function_single_ipi(int cpu); | 29 | extern void arch_send_call_function_single_ipi(int cpu); |
65 | extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); | 30 | extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
66 | 31 | ||
67 | #endif | 32 | extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; |
33 | |||
34 | #endif /* CONFIG_SMP */ | ||
68 | 35 | ||
69 | #ifdef CONFIG_HOTPLUG_CPU | 36 | #ifdef CONFIG_HOTPLUG_CPU |
70 | extern int smp_rescan_cpus(void); | 37 | extern int smp_rescan_cpus(void); |
@@ -72,5 +39,4 @@ extern int smp_rescan_cpus(void); | |||
72 | static inline int smp_rescan_cpus(void) { return 0; } | 39 | static inline int smp_rescan_cpus(void) { return 0; } |
73 | #endif | 40 | #endif |
74 | 41 | ||
75 | extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; | 42 | #endif /* __ASM_SMP_H */ |
76 | #endif | ||