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author	Christophe Leroy <christophe.leroy@csgroup.eu>
	Fri, 12 Mar 2021 12:50:47 +0000 (12:50 +0000)
committer	Michael Ellerman <mpe@ellerman.id.au>
	Mon, 29 Mar 2021 02:22:10 +0000 (13:22 +1100)
commit	b5efec00b671c5d7e9cb9e73a1d4925dd6ce8dcd
tree	99a5ab07a508cab6ee4943fd8b8d689b7c7c8e1a	tree
parent	a2b3e09ae41c71d27d9b8da9baf31e0d9a97b864	commit \| diff

powerpc/32s: Move KUEP locking/unlocking in C

This can be done in C, do it.

Unrolling the loop gains approx. 15% performance.

From now on, prepare_transfer_to_handler() is only for
interrupts from kernel.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4eadd873927e9a73c3d1dfe2f9497353465514cf.1615552867.git.christophe.leroy@csgroup.eu

MicroBlaze GIT Repository

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arch/powerpc/include/asm/book3s/32/kup.h		diff \| blob \| history
arch/powerpc/include/asm/interrupt.h		diff \| blob \| history
arch/powerpc/include/asm/kup.h		diff \| blob \| history
arch/powerpc/kernel/entry_32.S		diff \| blob \| history
arch/powerpc/kernel/head_32.h		diff \| blob \| history
arch/powerpc/kernel/head_booke.h		diff \| blob \| history
arch/powerpc/kernel/interrupt.c		diff \| blob \| history
arch/powerpc/mm/book3s32/Makefile		diff \| blob \| history
arch/powerpc/mm/book3s32/kuep.c	[new file with mode: 0644]	blob