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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-12-21 11:32:23 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-01-26 14:15:08 +0300 |
| commit | 1f1c4d0122eebd204468684f21f0270ea8a4999d (patch) | |
| tree | 9360be5fb9a51f8e25f9dd61f28f68be82c29ddb /arch/powerpc/kernel/head_32.S | |
| parent | 39bccfd164970557c5cfc60b2db029f70542549f (diff) | |
| download | linux-1f1c4d0122eebd204468684f21f0270ea8a4999d.tar.xz | |
powerpc/32: Add EXCEPTION_PROLOG_0 in head_32.h
This patch creates a macro for the very first part of
exception prolog, this will help when implementing
CONFIG_VMAP_STACK
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2249fe62f481121a180e9655ad2b998093f318f3.1576916812.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/kernel/head_32.S')
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 4a24f8f026c7..9e868567b716 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -272,9 +272,7 @@ __secondary_hold_acknowledge: */ . = 0x200 DO_KVM 0x200 - mtspr SPRN_SPRG_SCRATCH0,r10 - mtspr SPRN_SPRG_SCRATCH1,r11 - mfcr r10 + EXCEPTION_PROLOG_0 #ifdef CONFIG_PPC_CHRP mfspr r11, SPRN_SPRG_THREAD lwz r11, RTAS_SP(r11) |