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s390/kdump: fix compile for !SMP
Fix this compile error: arch/s390/kernel/setup.c:875:2: error: implicit declaration of function 'smp_save_dump_cpus' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -55,6 +55,7 @@ static inline int smp_store_status(int cpu) { return 0; }
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static inline int smp_vcpu_scheduled(int cpu) { return 1; }
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static inline void smp_yield_cpu(int cpu) { }
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static inline void smp_fill_possible_mask(void) { }
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static inline void smp_save_dump_cpus(void) { }
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#endif /* CONFIG_SMP */
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@ -560,6 +560,25 @@ static void __smp_store_cpu_state(struct save_area_ext *sa_ext, u16 address,
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memblock_free(vx_sa, PAGE_SIZE);
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}
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int smp_store_status(int cpu)
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{
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unsigned long vx_sa;
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struct pcpu *pcpu;
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pcpu = pcpu_devices + cpu;
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if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
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0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
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return -EIO;
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if (!MACHINE_HAS_VX)
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return 0;
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vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
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__pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
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vx_sa, NULL);
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return 0;
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}
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#endif /* CONFIG_CRASH_DUMP */
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/*
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* Collect CPU state of the previous, crashed system.
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* There are four cases:
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@ -589,6 +608,7 @@ static void __smp_store_cpu_state(struct save_area_ext *sa_ext, u16 address,
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*/
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void __init smp_save_dump_cpus(void)
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{
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#ifdef CONFIG_CRASH_DUMP
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int addr, cpu, boot_cpu_addr, max_cpu_addr;
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struct save_area_ext *sa_ext;
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bool is_boot_cpu;
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@ -629,30 +649,8 @@ void __init smp_save_dump_cpus(void)
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}
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diag308_reset();
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pcpu_set_smt(0);
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}
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int smp_store_status(int cpu)
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{
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unsigned long vx_sa;
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struct pcpu *pcpu;
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pcpu = pcpu_devices + cpu;
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if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
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0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
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return -EIO;
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if (!MACHINE_HAS_VX)
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return 0;
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vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
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__pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
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vx_sa, NULL);
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return 0;
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}
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#else
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void smp_save_dump_cpus(void)
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{
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}
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#endif /* CONFIG_CRASH_DUMP */
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}
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void smp_cpu_set_polarization(int cpu, int val)
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{
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