[PATCH V2 0/3] riscv: atomic: Optimize AMO instructions usage

[guoren]

From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>

These patch series contain one cleanup and some optimizations for
atomic operations.

Changes in V2:
 - Fixup LR/SC memory barrier semantic problems which pointed by
   Rutland
 - Combine patches into one patchset series
 - Separate AMO optimization & LRSC optimization for convenience
   patch review

Guo Ren (3):
  riscv: atomic: Cleanup unnecessary definition
  riscv: atomic: Optimize acquire and release for AMO operations
  riscv: atomic: Optimize memory barrier semantics of LRSC-pairs

 arch/riscv/include/asm/atomic.h  | 70 ++++++++++++++++++++++++++++++--
 arch/riscv/include/asm/cmpxchg.h | 42 +++++--------------
 2 files changed, 76 insertions(+), 36 deletions(-)

-- 
2.25.1