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 | ||
