linux/linux-5.4.31/Documentation/features/locking/cmpxchg-local/arch-support.txt

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#
# Feature name: cmpxchg-local
# Kconfig: HAVE_CMPXCHG_LOCAL
# description: arch supports the this_cpu_cmpxchg() API
#
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| arch |status|
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| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
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