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sh: make MMU-specific SMP code conditional on CONFIG_MMU 

This is a prerequisite for adding NOMMU SMP support.

Signed-off-by: Rich Felker <dalias@libc.org>
This commit is contained in:
Rich Felker 2016-02-12 22:11:55 +00:00
parent 3623d13821
commit 5f2cb34d03
1 changed files with 8 additions and 0 deletions
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8
arch/sh/kernel/smp.c
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@ -150,7 +150,9 @@ int __cpu_disable(void)
* from the vm mask set of all processes. * from the vm mask set of all processes.
*/ */
flush_cache_all(); flush_cache_all();
#ifdef CONFIG_MMU
local_flush_tlb_all(); local_flush_tlb_all();
#endif
clear_tasks_mm_cpumask(cpu); clear_tasks_mm_cpumask(cpu);
@ -183,8 +185,10 @@ asmlinkage void start_secondary(void)
atomic_inc(&mm->mm_count); atomic_inc(&mm->mm_count);
atomic_inc(&mm->mm_users); atomic_inc(&mm->mm_users);
current->active_mm = mm; current->active_mm = mm;
#ifdef CONFIG_MMU
enter_lazy_tlb(mm, current); enter_lazy_tlb(mm, current);
local_flush_tlb_all(); local_flush_tlb_all();
#endif
per_cpu_trap_init(); per_cpu_trap_init();
@ -328,6 +332,8 @@ int setup_profiling_timer(unsigned int multiplier)
return 0; return 0;
} }
#ifdef CONFIG_MMU
static void flush_tlb_all_ipi(void *info) static void flush_tlb_all_ipi(void *info)
{ {
local_flush_tlb_all(); local_flush_tlb_all();
@ -467,3 +473,5 @@ void flush_tlb_one(unsigned long asid, unsigned long vaddr)
smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1); smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1);
local_flush_tlb_one(asid, vaddr); local_flush_tlb_one(asid, vaddr);
} }
#endif