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(parent: 763c192) | patch
powerpc/32: Always save non volatile registers on exception entry
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Fri, 12 Mar 2021 12:50:33 +0000 (12:50 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 29 Mar 2021 02:22:07 +0000 (13:22 +1100)
commita76e2d52b16b4bfd67cad324dd5cbc1f59c3cbbe
tree1a93d1205ff925485eed1d337c7e88a30d67093btree | snapshot
parent763c192f9a94d3eeaeb71424b9ea57aaef3c58d7commit | diff
powerpc/32: Always save non volatile registers on exception entry

In preparation of handling exception entry and exit in C,
in order to simplify the handling, always save non volatile registers
when entering an exception.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3ce8ced87a4f1467fa36fcc50763d53b45e466c1.1615552867.git.christophe.leroy@csgroup.eu
arch/powerpc/include/asm/ptrace.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
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