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(parent: 39ba100) | patch
powerpc/40x: Save SRR0/SRR1 and r10/r11 earlier in critical exception
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Fri, 12 Mar 2021 12:50:13 +0000 (12:50 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 29 Mar 2021 02:22:03 +0000 (13:22 +1100)
commitb8108f605f5f2310d1af88d871d9b19fae905350
treeb74de45120716ff2a6e5dfe6ee25ce02df1f2074tree | snapshot
parent39ba100346fe1a3c10ac84b607f2040782c0d3e3commit | diff
powerpc/40x: Save SRR0/SRR1 and r10/r11 earlier in critical exception

In order to be able to switch MMU on in exception prolog, save
SRR0 and SRR1 earlier.

Also save r10 and r11 into stack earlier to better match with the
normal exception prolog.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/79a93f253d72dc97ac968c9c62b5066960b688ed.1615552866.git.christophe.leroy@csgroup.eu
arch/powerpc/kernel/entry_32.S diff | blob | history
arch/powerpc/kernel/head_40x.S diff | blob | history
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