lkml.org 
[lkml]   [2018]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v9 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable
Date
Add an interface to invalidate intermediate page tables
from TLB for kernel.

Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
---
arch/arm64/include/asm/tlbflush.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index dfc61d7..a4a1901 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -218,6 +218,13 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
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
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation
Center, Inc., is a member of Code Aurora Forum, a Linux Foundation
Collaborative Project
\
 
 \ /
  Last update: 2018-04-30 09:42    [W:0.069 / U:0.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site