This adds interrupt handler wrapper functions, similar to the generic / x86 code, and moves several common operations into them from either asm or open coded in the individual handlers.
Since v1: - Fixed a couple of compile issues - Fixed perf weirdness (sometimes NMI, sometimes not) - Also move irq_enter/exit into wrappers Since v2: - Rebased upstream - Took code in patch 3 from Christophe - Fixed some compile errors from 0day Since v3: - Rebased - Split Christophe's 32s DABR patch into its own patch - Fixed missing asm from 32s on patch 3 noticed by Christophe. - Moved changes around, split out one more patch (patch 9) to make changes more logical and atomic. - Add comments explaining _RAW handlers (SLB, HPTE) interrupts better Since v4: - Rebased (on top of scv fallback flush fix) - Rearranged a few changes into different patches from Christophe, e.g., the ___do_page_fault change from patch 2 to 10. I didn't do everything (e.g., splitting to update __hash_page to drop the msr argument before the bulk of patch 2 seemed like churn without much improvement), and also other things like removing the new ___do_page_fault variant if we can change hash fault context tracking I didn't get time to completely investigate and implement. I think this shouldn't be a showstopper though we can make more improvements as we go. Thanks, Nick Christophe Leroy (1): powerpc/32s: Do DABR match out of handle_page_fault() Nicholas Piggin (20): powerpc/64s: move the last of the page fault handling logic to C powerpc: remove arguments from fault handler functions powerpc: bad_page_fault, do_break get registers from regs powerpc/perf: move perf irq/nmi handling details into traps.c powerpc: interrupt handler wrapper functions powerpc: add interrupt wrapper entry / exit stub functions powerpc: add interrupt_cond_local_irq_enable helper powerpc/64: context tracking remove _TIF_NOHZ powerpc/64s/hash: improve context tracking of hash faults powerpc/64: context tracking move to interrupt wrappers powerpc/64: add context tracking to asynchronous interrupts powerpc: handle irq_enter/irq_exit in interrupt handler wrappers powerpc/64s: move context tracking exit to interrupt exit path powerpc/64s: reconcile interrupts in C powerpc/64: move account_stolen_time into its own function powerpc/64: entry cpu time accounting in C powerpc: move NMI entry/exit code into wrapper powerpc/64s: move NMI soft-mask handling to C powerpc/64s: runlatch interrupt handling in C powerpc/64s: power4 nap fixup in C arch/powerpc/Kconfig | 1 - arch/powerpc/include/asm/asm-prototypes.h | 29 -- arch/powerpc/include/asm/bug.h | 7 +- arch/powerpc/include/asm/cputime.h | 15 + arch/powerpc/include/asm/debug.h | 3 +- arch/powerpc/include/asm/hw_irq.h | 9 - arch/powerpc/include/asm/interrupt.h | 418 +++++++++++++++++++++ arch/powerpc/include/asm/ppc_asm.h | 24 -- arch/powerpc/include/asm/processor.h | 1 + arch/powerpc/include/asm/thread_info.h | 10 +- arch/powerpc/include/asm/time.h | 2 + arch/powerpc/kernel/dbell.c | 15 +- arch/powerpc/kernel/entry_32.S | 24 +- arch/powerpc/kernel/exceptions-64e.S | 6 +- arch/powerpc/kernel/exceptions-64s.S | 307 ++------------- arch/powerpc/kernel/head_40x.S | 10 +- arch/powerpc/kernel/head_8xx.S | 11 +- arch/powerpc/kernel/head_book3s_32.S | 14 +- arch/powerpc/kernel/head_booke.h | 4 +- arch/powerpc/kernel/idle_book3s.S | 4 + arch/powerpc/kernel/irq.c | 7 +- arch/powerpc/kernel/mce.c | 16 +- arch/powerpc/kernel/process.c | 7 +- arch/powerpc/kernel/ptrace/ptrace.c | 4 - arch/powerpc/kernel/signal.c | 4 - arch/powerpc/kernel/syscall_64.c | 30 +- arch/powerpc/kernel/tau_6xx.c | 5 +- arch/powerpc/kernel/time.c | 7 +- arch/powerpc/kernel/traps.c | 231 ++++++------ arch/powerpc/kernel/watchdog.c | 15 +- arch/powerpc/kvm/book3s_hv.c | 1 + arch/powerpc/kvm/book3s_hv_builtin.c | 1 + arch/powerpc/kvm/booke.c | 1 + arch/powerpc/mm/book3s64/hash_utils.c | 92 +++-- arch/powerpc/mm/book3s64/slb.c | 36 +- arch/powerpc/mm/fault.c | 92 +++-- arch/powerpc/perf/core-book3s.c | 35 +- arch/powerpc/perf/core-fsl-emb.c | 25 -- arch/powerpc/platforms/8xx/machine_check.c | 2 +- arch/powerpc/platforms/powernv/idle.c | 1 + 40 files changed, 813 insertions(+), 713 deletions(-) create mode 100644 arch/powerpc/include/asm/interrupt.h -- 2.23.0
