powerpc/83xx: Also save/restore SPRG4-7 during suspend

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commit 36da5ff0be upstream.

The 83xx has 8 SPRG registers and uses at least SPRG4
for DTLB handling LRU.

Fixes: 2319f12395 ("powerpc/mm: e300c2/c3/c4 TLB errata workaround")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Christophe Leroy 2019-01-25 12:03:55 +00:00 • committed by Ben Hutchings

parent 88eb67d7cc

commit 453dd49fd7

1 changed files with 27 additions and 7 deletions

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arch/powerpc/platforms/83xx/suspend-asm.S

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