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(parent: 2341964) | patch
powerpc/kuap: Add kuap_lock()
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Tue, 19 Oct 2021 07:29:23 +0000 (09:29 +0200)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 9 Dec 2021 11:41:19 +0000 (22:41 +1100)
commit937fb7003ee1f37faed1f1a4ece46e8a14863d92
treef75e83e40cf99ba19d199c20002671aefdcb745btree | snapshot
parent2341964e27b02b2ca1deef8a18df59d1db7b9085commit | diff
powerpc/kuap: Add kuap_lock()

Add kuap_lock() and call it when entering interrupts from user.

It is called kuap_lock() as it is similar to kuap_save_and_lock()
without the save.

However book3s/32 already have a kuap_lock(). Rename it
kuap_lock_addr().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4437e2deb9f6f549f7089d45e9c6f96a7e77905a.1634627931.git.christophe.leroy@csgroup.eu
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/include/asm/nohash/32/kup-8xx.h diff | blob | history
arch/powerpc/kernel/interrupt.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git