powerpc/8xx: Create C version of kuap save/restore/check helpers

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In preparation of porting PPC32 to C syscall entry/exit,
create C version of kuap_save_and_lock() and kuap_user_restore() and
kuap_kernel_restore() and kuap_assert_locked() and
kuap_get_and_assert_locked() on 8xx.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156a7c4b669d26785391422a5581a1d919544c9a.1615552867.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2021-03-12 12:50:50 +00:00 • committed by Michael Ellerman

parent 21eb58ae4f

commit 0b45359aa2

1 changed files with 31 additions and 0 deletions

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arch/powerpc/include/asm/nohash/32/kup-8xx.h

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