Here's a few stragglers. The first patch was submitted already but had some bugs with unrecoverable exceptions on HPT (current->blah being accessed before MSR[RI] was enabled). Those should be fixed now.
The others are generally for helping asynch interrupts, which are a bit harder to measure well but important for IO and IPIs. After this series, the SPR accesses of the interrupt handlers for radix are becoming pretty optimal except for PPR which we could improve on, and virt CPU accounting which is very costly -- we might disable that by default unless someone comes up with a good reason to keep it. Thanks, Nick Nicholas Piggin (4): powerpc/64: handle MSR EE and RI in interrupt entry wrapper powerpc/64s/perf: add power_pmu_running to query whether perf is being used powerpc/64s/interrupt: Don't enable MSR[EE] in irq handlers unless perf is in use powerpc/64s/interrupt: avoid saving CFAR in some asynchronous interrupts arch/powerpc/include/asm/hw_irq.h | 49 ++++++++++++--- arch/powerpc/include/asm/interrupt.h | 31 ++++++++-- arch/powerpc/kernel/dbell.c | 3 +- arch/powerpc/kernel/exceptions-64s.S | 93 +++++++++++++++++++--------- arch/powerpc/kernel/fpu.S | 5 ++ arch/powerpc/kernel/irq.c | 3 +- arch/powerpc/kernel/time.c | 30 ++++----- arch/powerpc/kernel/vector.S | 8 +++ arch/powerpc/perf/core-book3s.c | 13 ++++ 9 files changed, 175 insertions(+), 60 deletions(-) -- 2.23.0