[PATCH 00/20] ARC updates

[Vineet Gupta]

Hi,

This is a pile of miscll improvements/updates sitting in one of my local trees.
Given the recent warning fix, we coudl also push them out.
@Alexey, @Shahab: care to give these a spin on hsdk (and test ARC700 build/boot on nSIM if possible).

Thx,
-Vineet

Vineet Gupta (20):
  ARC: uaccess: remove arc specific out-of-line handles for -Os
  ARC: uaccess: use optimized generic __strnlen_user/__strncpy_from_user
  ARC: uaccess: elide unaliged handling if hardware supports
  ARCv2: memset: don't prefetch for len == 0 which happens a alot
  ARC: boot log: eliminate struct cpuinfo_arc #1: mm
  ARC: boot log: eliminate struct cpuinfo_arc #2: cache
  ARC: boot log: eliminate struct cpuinfo_arc #3: don't export
  ARC: boot log: eliminate struct cpuinfo_arc #4: boot log per ISA
  ARC: entry: use gp to cache task pointer (vs. r25)
  ARC: kernel stack: INIT_THREAD need not setup @init_stack in @ksp
  ARC: __switch_to: asm with dwarf ops (vs. inline asm)
  ARC: __switch_to: move ksp to thread_info from thread_struct
  ARC: entry: rework (non-functional)
  ARC: entry: ARcompact EV_ProtV to use r10 directly
  ARC: entry: EV_MachineCheck dont re-read ECR
  ARC: entry: Add more common chores to EXCEPTION_PROLOGUE
  ARC: entry: replace 8 byte OR with 4 byte BSET
  ARC: entry: replace 8 byte ADD.ne with 4 byte ADD2.ne
  ARCv2: entry: rearrange pt_regs slightly
  ARC: pt_regs: create seperate type for ecr

 arch/arc/Kconfig                     |   8 +-
 arch/arc/Makefile                    |   6 +-
 arch/arc/include/asm/arcregs.h       |  99 ++---
 arch/arc/include/asm/current.h       |   2 +-
 arch/arc/include/asm/dwarf.h         |  32 +-
 arch/arc/include/asm/entry-arcv2.h   |  66 ++--
 arch/arc/include/asm/entry-compact.h |  50 ++-
 arch/arc/include/asm/entry.h         | 107 ++---
 arch/arc/include/asm/processor.h     |   7 +-
 arch/arc/include/asm/ptrace.h        |  62 ++-
 arch/arc/include/asm/setup.h         |   6 +-
 arch/arc/include/asm/thread_info.h   |  10 +-
 arch/arc/include/asm/uaccess.h       |  21 +-
 arch/arc/kernel/Makefile             |   9 +-
 arch/arc/kernel/asm-offsets.c        |  14 +-
 arch/arc/kernel/ctx_sw.c             | 112 ------
 arch/arc/kernel/ctx_sw_asm.S         |  76 ++--
 arch/arc/kernel/entry-arcv2.S        |  15 -
 arch/arc/kernel/entry-compact.S      |  16 +-
 arch/arc/kernel/entry.S              |  70 ++--
 arch/arc/kernel/kgdb.c               |   2 +-
 arch/arc/kernel/mcip.c               |   2 -
 arch/arc/kernel/process.c            |  17 +-
 arch/arc/kernel/ptrace.c             |   8 +-
 arch/arc/kernel/setup.c              | 561 ++++++++++++---------------
 arch/arc/kernel/traps.c              |   4 +-
 arch/arc/kernel/troubleshoot.c       |  13 +-
 arch/arc/lib/memset-archs.S          |   3 +-
 arch/arc/mm/cache.c                  | 171 +++-----
 arch/arc/mm/extable.c                |  11 -
 arch/arc/mm/fault.c                  |   6 +-
 arch/arc/mm/tlb.c                    |  94 ++---
 32 files changed, 667 insertions(+), 1013 deletions(-)
 delete mode 100644 arch/arc/kernel/ctx_sw.c

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2.34.1