[PATCH v2 rebase 00/34] exception cleanup, syscall in C and !COMPAT

From: Michal Suchanek
Date: Wed Nov 27 2019 - 05:39:23 EST


Hello,

This is merge of https://patchwork.ozlabs.org/cover/1162376/ (except two
last experimental patches) and
https://patchwork.ozlabs.org/patch/1162079/ rebased on top of master.

There was minor conflict in Makefile in the latter series.

Refreshed the patchset to fix build error on ppc32 and ppc64e.

Rebased on top of powerpc/merge.

Thanks

Michal

Michal Suchanek (9):
powerpc/64: system call: Fix sparse warning about missing declaration
powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro
powerpc: move common register copy functions from signal_32.c to
signal.c
powerpc/perf: consolidate read_user_stack_32
powerpc/perf: consolidate valid_user_sp
powerpc/64: make buildable without CONFIG_COMPAT
powerpc/64: Make COMPAT user-selectable disabled on littleendian by
default.
powerpc/perf: split callchain.c by bitness
MAINTAINERS: perf: Add pattern that matches ppc perf to the perf
entry.

Nicholas Piggin (25):
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

MAINTAINERS | 2 +
arch/powerpc/Kconfig | 5 +-
arch/powerpc/include/asm/asm-prototypes.h | 17 +-
.../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/hw_irq.h | 4 +
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/thread_info.h | 4 +-
arch/powerpc/include/asm/time.h | 4 +-
arch/powerpc/include/asm/unistd.h | 1 +
arch/powerpc/kernel/Makefile | 9 +-
arch/powerpc/kernel/entry_64.S | 880 ++------
arch/powerpc/kernel/exceptions-64e.S | 255 ++-
arch/powerpc/kernel/exceptions-64s.S | 1937 ++++++++++++-----
arch/powerpc/kernel/process.c | 89 +-
arch/powerpc/kernel/signal.c | 144 +-
arch/powerpc/kernel/signal.h | 2 -
arch/powerpc/kernel/signal_32.c | 140 --
arch/powerpc/kernel/syscall_64.c | 349 +++
arch/powerpc/kernel/syscalls/syscall.tbl | 22 +-
arch/powerpc/kernel/systbl.S | 9 +-
arch/powerpc/kernel/time.c | 9 -
arch/powerpc/kernel/vdso.c | 3 +-
arch/powerpc/kernel/vector.S | 2 +-
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 11 -
arch/powerpc/kvm/book3s_segment.S | 7 -
arch/powerpc/perf/Makefile | 5 +-
arch/powerpc/perf/callchain.c | 370 +---
arch/powerpc/perf/callchain.h | 20 +
arch/powerpc/perf/callchain_32.c | 197 ++
arch/powerpc/perf/callchain_64.c | 178 ++
fs/read_write.c | 3 +-
35 files changed, 2798 insertions(+), 1949 deletions(-)
create mode 100644 arch/powerpc/kernel/syscall_64.c
create mode 100644 arch/powerpc/perf/callchain.h
create mode 100644 arch/powerpc/perf/callchain_32.c
create mode 100644 arch/powerpc/perf/callchain_64.c

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2.23.0