xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/64s/hash: Simplify slb_flush_and_rebolt()

Browse Source 
slb_flush_and_rebolt() is misleading, it is called in virtual mode, so
it can not possibly change the stack, so it should not be touching the
shadow area. And since vmalloc is no longer bolted, it should not
change any bolted mappings at all.

Change the name to slb_flush_and_restore_bolted(), and have it just
load the kernel stack from what's currently in the shadow SLB area.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin
2018-10-03 00:27:58 +10:00
committed by Michael Ellerman
parent 5434ae7462
commit 94ee42727c
5 changed files with 21 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/include/asm/book3s/64/mmu-hash.h
View File

@@ -503,7 +503,7 @@ struct slb_entry {
};
extern void slb_initialize(void);
extern void slb_flush_and_rebolt(void);
void slb_flush_and_restore_bolted(void);
void slb_flush_all_realmode(void);
void __slb_restore_bolted_realmode(void);
void slb_restore_bolted_realmode(void);