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| author | Will Deacon <will.deacon@arm.com> | 2015-10-06 18:46:23 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-10-07 11:45:27 +0100 |
| commit | 8e63d38876691756f9bc6930850f1fb77809be1b (patch) | |
| tree | 74f5a739675a90c71d1f07e937c2e3f512781b7e /arch/arm64/kernel/suspend.c | |
| parent | fa7aae8a4257e6be7051420dac1f150c1eef721b (diff) | |
| download | linux-8e63d38876691756f9bc6930850f1fb77809be1b.tar.gz linux-8e63d38876691756f9bc6930850f1fb77809be1b.tar.bz2 linux-8e63d38876691756f9bc6930850f1fb77809be1b.zip | |
arm64: flush: use local TLB and I-cache invalidation
There are a number of places where a single CPU is running with a
private page-table and we need to perform maintenance on the TLB and
I-cache in order to ensure correctness, but do not require the operation
to be broadcast to other CPUs.
This patch adds local variants of tlb_flush_all and __flush_icache_all
to support these use-cases and updates the callers respectively.
__local_flush_icache_all also implies an isb, since it is intended to be
used synchronously.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Daney <david.daney@cavium.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/suspend.c')
| -rw-r--r-- | arch/arm64/kernel/suspend.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c index 8297d502217e..3c5e4e6dcf68 100644 --- a/arch/arm64/kernel/suspend.c +++ b/arch/arm64/kernel/suspend.c @@ -90,7 +90,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) else cpu_switch_mm(mm->pgd, mm); - flush_tlb_all(); + local_flush_tlb_all(); /* * Restore per-cpu offset before any kernel |