korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-02 08:34:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

powerpc/64s: Minor fix for MCE TLB flush for radix

Browse Source 
The TLB flush for radix first flushes TLB for radix configuration,
then flushes for hash configuration. The second flush is unnecessary
but does not affect correctness.

Fixes: 1a472c9dba ("powerpc/mm/radix: Add tlbflush routines")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-04-17 00:21:19 +10:00 committed by Michael Ellerman
parent be77e999e3
commit 95dbdf4fa0
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/powerpc/kernel/mce_power.c
View File

@ -72,10 +72,14 @@ void __flush_tlb_power8(unsigned int action)
void __flush_tlb_power9(unsigned int action)
{
if (radix_enabled())
flush_tlb_206(POWER9_TLB_SETS_RADIX, action);
unsigned int num_sets;
flush_tlb_206(POWER9_TLB_SETS_HASH, action);
if (radix_enabled())
num_sets = POWER9_TLB_SETS_RADIX;
else
num_sets = POWER9_TLB_SETS_HASH;
flush_tlb_206(num_sets, action);
}