[Qemu-devel] [PULL v2 00/37] cmpxchg atomic operations

[Richard Henderson]

This is v8, rebased for a minor conflict in target-arm/cpu.h,
and with two additional R-b for patches 1 & 4.


r~


The following changes since commit ede0cbeb7892bdf4a19128853a3a3c61a17fb068:

  Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-10-25' into 
staging (2016-10-25 17:03:11 +0100)

are available in the git repository at:

  git://github.com/rth7680/qemu.git tags/pull-atomic-20161026

for you to fetch changes up to ed2839166c21e001d15868f4d9591a21aaebd547:

  target-alpha: Emulate LL/SC using cmpxchg helpers (2016-10-26 08:29:02 -0700)

----------------------------------------------------------------
cmpxchg emulation of atomics, v8

----------------------------------------------------------------
Alex Bennée (1):
      linux-user: enable parallel code generation on clone

Emilio G. Cota (18):
      atomics: add atomic_xor
      atomics: add atomic_op_fetch variants
      target-i386: emulate LOCK'ed cmpxchg using cmpxchg helpers
      target-i386: emulate LOCK'ed OP instructions using atomic helpers
      target-i386: emulate LOCK'ed INC using atomic helper
      target-i386: emulate LOCK'ed NOT using atomic helper
      target-i386: emulate LOCK'ed NEG using cmpxchg helper
      target-i386: emulate LOCK'ed XADD using atomic helper
      target-i386: emulate LOCK'ed BTX ops using atomic helpers
      target-i386: emulate XCHG using atomic helper
      target-i386: remove helper_lock()
      tests: add atomic_add-bench
      target-arm: emulate LL/SC using cmpxchg helpers
      target-arm: emulate SWP with atomic_xchg helper
      target-arm: emulate aarch64's LL/SC using cmpxchg helpers
      linux-user: remove handling of ARM's EXCP_STREX
      linux-user: remove handling of aarch64's EXCP_STREX
      target-arm: remove EXCP_STREX + cpu_exclusive_{test, info}

Richard Henderson (18):
      atomics: Add parameters to macros
      atomics: Add __nocheck atomic operations
      exec: Avoid direct references to Int128 parts
      int128: Use __int128 if available
      int128: Add int128_make128
      tcg: Add EXCP_ATOMIC
      cputlb: Replace SHIFT with DATA_SIZE
      cputlb: Move probe_write out of softmmu_template.h
      cputlb: Remove includes from softmmu_template.h
      cputlb: Move most of iotlb code out of line
      cputlb: Tidy some macros
      tcg: Add atomic helpers
      tcg: Add atomic128 helpers
      tcg: Add CONFIG_ATOMIC64
      tcg: Emit barriers with parallel_cpus
      target-arm: Rearrange aa32 load and store functions
      target-alpha: Introduce MMU_PHYS_IDX
      target-alpha: Emulate LL/SC using cmpxchg helpers

 Makefile.objs              |   2 +-
 Makefile.target            |   1 +
 atomic_template.h          | 215 +++++++++++++++++++++++++
 configure                  |  62 +++++++-
 cpu-exec-common.c          |   6 +
 cpu-exec.c                 |  30 ++++
 cpus.c                     |   2 +
 cputlb.c                   | 203 ++++++++++++++++++++++--
 exec.c                     |   4 +-
 include/exec/cpu-all.h     |   1 +
 include/exec/exec-all.h    |   1 +
 include/qemu-common.h      |   1 +
 include/qemu/atomic.h      |  67 ++++++--
 include/qemu/int128.h      | 171 +++++++++++++++++++-
 linux-user/main.c          | 312 ++++++------------------------------
 linux-user/syscall.c       |   8 +
 softmmu_template.h         | 104 ++----------
 target-alpha/cpu.h         |  22 +--
 target-alpha/helper.c      |  14 +-
 target-alpha/helper.h      |   9 --
 target-alpha/machine.c     |   2 -
 target-alpha/mem_helper.c  |  73 ---------
 target-alpha/translate.c   | 148 +++++++++--------
 target-arm/cpu.h           |   5 -
 target-arm/helper-a64.c    | 113 +++++++++++++
 target-arm/helper-a64.h    |   2 +
 target-arm/internals.h     |   4 +-
 target-arm/translate-a64.c | 106 ++++++-------
 target-arm/translate.c     | 343 +++++++++++++++-------------------------
 target-arm/translate.h     |   4 -
 target-i386/helper.h       |   4 +-
 target-i386/mem_helper.c   | 153 ++++++++++++------
 target-i386/translate.c    | 386 +++++++++++++++++++++++++++++----------------
 tcg-runtime.c              |  74 +++++++--
 tcg/tcg-op.c               | 354 +++++++++++++++++++++++++++++++++++++++--
 tcg/tcg-op.h               |  44 ++++++
 tcg/tcg-runtime.h          | 109 +++++++++++++
 tcg/tcg.h                  |  85 ++++++++++
 tests/.gitignore           |   1 +
 tests/Makefile.include     |   4 +-
 tests/atomic_add-bench.c   | 163 +++++++++++++++++++
 tests/test-int128.c        |  22 +--
 translate-all.c            |   1 +
 43 files changed, 2345 insertions(+), 1090 deletions(-)
 create mode 100644 atomic_template.h
 create mode 100644 tests/atomic_add-bench.c