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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-02-21 11:37:53 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-21 14:10:16 +0100 |
| commit | 40058337f23f79212f92ed5ef066e90a032905b1 (patch) | |
| tree | 6a0dac2960e645805cc00134cbbabfff64664c9a /arch/powerpc/kernel/head_32.S | |
| parent | powerpc/83xx: Also save/restore SPRG4-7 during suspend (diff) | |
| download | linux-40058337f23f79212f92ed5ef066e90a032905b1.tar.xz linux-40058337f23f79212f92ed5ef066e90a032905b1.zip | |
powerpc: simplify BDI switch
There is no reason to re-read each time the pointer at
location 0xf0 as it is fixed and known.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/head_32.S')
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 05b08db3901d..c2f564690778 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -1027,9 +1027,8 @@ _ENTRY(switch_mmu_context) * The PGDIR is passed as second argument. */ lwz r4,MM_PGD(r4) - lis r5, KERNELBASE@h - lwz r5, 0xf0(r5) - stw r4, 0x4(r5) + lis r5, abatron_pteptrs@ha + stw r4, abatron_pteptrs@l + 0x4(r5) #endif li r4,0 isync |