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| author | Tony Lindgren <tony@atomide.com> | 2017-11-28 19:12:32 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-11-28 19:12:32 +0300 |
| commit | bc686442f8a601bccac1f22506ecdb4b0d62cadd (patch) | |
| tree | b224ab4aa2350b233da640f5850f48bc6bfeb2d0 /arch/powerpc/platforms/powernv/idle.c | |
| parent | 60636a5d0fa2f8bc6d0c23c4027100ba20866f9b (diff) | |
| parent | ca41e244517d6d3f1600c229ff7ca615049c1e9c (diff) | |
| download | linux-bc686442f8a601bccac1f22506ecdb4b0d62cadd.tar.xz | |
Merge branch 'dts-fixes' into omap-for-v4.15/fixes-dt
Diffstat (limited to 'arch/powerpc/platforms/powernv/idle.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/idle.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 9f59041a172b..443d5ca71995 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -393,7 +393,13 @@ static void pnv_program_cpu_hotplug_lpcr(unsigned int cpu, u64 lpcr_val) u64 pir = get_hard_smp_processor_id(cpu); mtspr(SPRN_LPCR, lpcr_val); - opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val); + + /* + * Program the LPCR via stop-api only if the deepest stop state + * can lose hypervisor context. + */ + if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT) + opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val); } /* |