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| author | Will Deacon <will.deacon@arm.com> | 2015-10-06 19:46:23 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-10-07 12:45:27 +0200 |
| commit | 8e63d38876691756f9bc6930850f1fb77809be1b (patch) | |
| tree | 74f5a739675a90c71d1f07e937c2e3f512781b7e /arch/arm64/kernel/efi.c | |
| parent | arm64: proc: de-scope TLBI operation during cold boot (diff) | |
| download | linux-8e63d38876691756f9bc6930850f1fb77809be1b.tar.xz 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/efi.c')
| -rw-r--r-- | arch/arm64/kernel/efi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index 13671a9cf016..4d12926ea40d 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -344,9 +344,9 @@ static void efi_set_pgd(struct mm_struct *mm) else cpu_switch_mm(mm->pgd, mm); - flush_tlb_all(); + local_flush_tlb_all(); if (icache_is_aivivt()) - __flush_icache_all(); + __local_flush_icache_all(); } void efi_virtmap_load(void) |