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arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable

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Add an interface to invalidate intermediate page tables
from TLB for kernel.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Chintan Pandya 2018-06-06 12:31:20 +05:30 committed by Will Deacon
parent f355152041
commit 05f2d2f83b
1 changed files with 7 additions and 0 deletions
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7
arch/arm64/include/asm/tlbflush.h
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@ -218,6 +218,13 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
dsb(ish); dsb(ish);
} }
static inline void __flush_tlb_kernel_pgtable(unsigned long kaddr)
{
unsigned long addr = __TLBI_VADDR(kaddr, 0);
__tlbi(vaae1is, addr);
dsb(ish);
}
#endif #endif
#endif #endif