diff options
| author | Will Deacon <will.deacon@arm.com> | 2013-06-05 12:40:34 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-06-07 18:00:11 +0100 |
| commit | 737c16dffc458e58ee7840556d43b874cb8e16a0 (patch) | |
| tree | 298c257517f97ad21236588c189c3e1e5bd38aa7 /arch | |
| parent | 4ecf7ccb1973fd826456b6ab1e6dfafe9023c753 (diff) | |
arm64: mm: don't bother invalidating the icache in switch_mm
We don't support software broadcast of cache maintenance operations, so
this flush is not required (__sync_icache_dcache will always affect all
CPUs).
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/asm/mmu_context.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h index e2bc385adb6..a9eee33dfa6 100644 --- a/arch/arm64/include/asm/mmu_context.h +++ b/arch/arm64/include/asm/mmu_context.h @@ -151,12 +151,6 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next, { unsigned int cpu = smp_processor_id(); -#ifdef CONFIG_SMP - /* check for possible thread migration */ - if (!cpumask_empty(mm_cpumask(next)) && - !cpumask_test_cpu(cpu, mm_cpumask(next))) - __flush_icache_all(); -#endif if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next) check_and_switch_context(next, tsk); } |