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powerpc/epapr: Don't use wrteei on non booke

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wrteei is only for booke. Use the standard mfmsr/ori/mtmsr
when non booke.

Reported-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b29c7f1727433b003eae050e44072741c8ac223b.1671475543.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2022-12-19 19:46:00 +01:00 committed by Michael Ellerman
parent bfb03af71a
commit 3c2ce4912a
1 changed files with 6 additions and 0 deletions
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6
arch/powerpc/kernel/epapr_hcalls.S
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@ -21,7 +21,13 @@ _GLOBAL(epapr_ev_idle)
ori r4, r4,_TLF_NAPPING /* so when we take an exception */
PPC_STL r4, TI_LOCAL_FLAGS(r2) /* it will return to our caller */
#ifdef CONFIG_BOOKE_OR_40x
wrteei 1
#else
mfmsr r4
ori r4, r4, MSR_EE
mtmsr r4
#endif
idle_loop:
LOAD_REG_IMMEDIATE(r11, EV_HCALL_TOKEN(EV_IDLE))