[RFC PATCH 00/27] current interrupt series plus scv syscall

[Michal Suchánek]

Hello,

can you mark the individual patches with RFC rather than the wole
series?

Thanks

Michal

On Sun, Sep 15, 2019 at 11:27:46AM +1000, Nicholas Piggin wrote:
> My interrupt entry patches have finally collided with syscall and
> interrupt exit patches, so I'll merge the series. Most patches have
> been seen already, however there have been a number of small changes
> and fixes throughout the series.
> 
> The final two patches add support for 'scv' and 'rfscv' instructions.
> 
> I'm posting this out now so we can start considering ABI and userspace
> support. We have the PPC_FEATURE2_SCV hwcap for this.
> 
> Thanks,
> Nick
> 
> Nicholas Piggin (27):
>   powerpc/64s/exception: Introduce INT_DEFINE parameter block for code
>     generation
>   powerpc/64s/exception: Add GEN_COMMON macro that uses INT_DEFINE
>     parameters
>   powerpc/64s/exception: Add GEN_KVM macro that uses INT_DEFINE
>     parameters
>   powerpc/64s/exception: Expand EXC_COMMON and EXC_COMMON_ASYNC macros
>   powerpc/64s/exception: Move all interrupt handlers to new style code
>     gen macros
>   powerpc/64s/exception: Remove old INT_ENTRY macro
>   powerpc/64s/exception: Remove old INT_COMMON macro
>   powerpc/64s/exception: Remove old INT_KVM_HANDLER
>   powerpc/64s/exception: Add ISIDE option
>   powerpc/64s/exception: move real->virt switch into the common handler
>   powerpc/64s/exception: move soft-mask test to common code
>   powerpc/64s/exception: move KVM test to common code
>   powerpc/64s/exception: remove confusing IEARLY option
>   powerpc/64s/exception: remove the SPR saving patch code macros
>   powerpc/64s/exception: trim unused arguments from KVMTEST macro
>   powerpc/64s/exception: hdecrementer avoid touching the stack
>   powerpc/64s/exception: re-inline some handlers
>   powerpc/64s/exception: Clean up SRR specifiers
>   powerpc/64s/exception: add more comments for interrupt handlers
>   powerpc/64s/exception: only test KVM in SRR interrupts when PR KVM is
>     supported
>   powerpc/64s/exception: soft nmi interrupt should not use
>     ret_from_except
>   powerpc/64: system call remove non-volatile GPR save optimisation
>   powerpc/64: system call implement the bulk of the logic in C
>   powerpc/64s: interrupt return in C
>   powerpc/64s/exception: remove lite interrupt return
>   powerpc/64s/exception: treat NIA below __end_interrupts as soft-masked
>   powerpc/64s: system call support for scv/rfscv instructions
> 
>  arch/powerpc/include/asm/asm-prototypes.h     |   11 -
>  .../powerpc/include/asm/book3s/64/kup-radix.h |   24 +-
>  arch/powerpc/include/asm/cputime.h            |   24 +
>  arch/powerpc/include/asm/exception-64s.h      |    4 -
>  arch/powerpc/include/asm/head-64.h            |    2 +-
>  arch/powerpc/include/asm/hw_irq.h             |    4 +
>  arch/powerpc/include/asm/ppc_asm.h            |    2 +
>  arch/powerpc/include/asm/processor.h          |    2 +-
>  arch/powerpc/include/asm/ptrace.h             |    3 +
>  arch/powerpc/include/asm/signal.h             |    3 +
>  arch/powerpc/include/asm/switch_to.h          |   11 +
>  arch/powerpc/include/asm/time.h               |    4 +-
>  arch/powerpc/kernel/Makefile                  |    3 +-
>  arch/powerpc/kernel/cpu_setup_power.S         |    2 +-
>  arch/powerpc/kernel/dt_cpu_ftrs.c             |    1 +
>  arch/powerpc/kernel/entry_64.S                |  964 ++------
>  arch/powerpc/kernel/exceptions-64e.S          |  254 +-
>  arch/powerpc/kernel/exceptions-64s.S          | 2046 ++++++++++++-----
>  arch/powerpc/kernel/process.c                 |    2 +
>  arch/powerpc/kernel/signal.h                  |    2 -
>  arch/powerpc/kernel/syscall_64.c              |  422 ++++
>  arch/powerpc/kernel/syscalls/syscall.tbl      |   22 +-
>  arch/powerpc/kernel/systbl.S                  |    9 +-
>  arch/powerpc/kernel/time.c                    |    9 -
>  arch/powerpc/kernel/vector.S                  |    2 +-
>  arch/powerpc/kvm/book3s_hv_rmhandlers.S       |   11 -
>  arch/powerpc/kvm/book3s_segment.S             |    7 -
>  27 files changed, 2458 insertions(+), 1392 deletions(-)
>  create mode 100644 arch/powerpc/kernel/syscall_64.c
> 
> -- 
> 2.23.0
>