[PATCH V2 0/3] riscv: atomic: Optimize AMO instructions usage
guoren at kernel.org
guoren at kernel.org
Mon Apr 11 20:49:54 PDT 2022
From: Guo Ren <guoren at linux.alibaba.com>
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
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