mbox series

[v2,0/4] locking/atomic: arch_cmpxchg[64]_local undefined

Message ID 20231104091615.4884-1-wuqiang.matt@bytedance.com
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Series locking/atomic: arch_cmpxchg[64]_local undefined | expand

Message

wuqiang.matt Nov. 4, 2023, 9:16 a.m. UTC 
This patch series implement arch_cmpxchg[64]_local for arc,
openrisc and hexagon.

For architectures that support native cmpxchg, we'd like to
implement arch_cmpxchg[64]_local with the native variants of
supported data size. If not, the generci_cmpxchg[64]_local
will be used.

wuqiang.matt (4):
  locking/atomic: arc: data size checking in arch_cmpxchg
  locking/atomic: arc: arch_cmpxchg[64]_local undefined
  locking/atomic: openrisc: arch_cmpxchg[64]_local undefined
  locking/atomic: hexagon: arch_cmpxchg[64]_local undefined

 arch/arc/include/asm/cmpxchg.h      | 40 ++++++++++++++++++----
 arch/hexagon/include/asm/cmpxchg.h  | 51 ++++++++++++++++++++++++++++-
 arch/openrisc/include/asm/cmpxchg.h |  6 ++++
 3 files changed, 90 insertions(+), 7 deletions(-)