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riscv: Implement xchg8/16() using Zabha
authorAlexandre Ghiti <alexghiti@rivosinc.com>
Sun, 3 Nov 2024 14:51:48 +0000 (15:51 +0100)
committerPalmer Dabbelt <palmer@rivosinc.com>
Mon, 11 Nov 2024 15:33:15 +0000 (07:33 -0800)
commit97ddab7fbea8fceb044108b64ba2ee2c96ff8dab
treea1d14069eb49a40c57f7c6e43c353fa2b6bd460etree
parentf7bd2be7663c7de1dde27dadd352b2c3f4e19106commit | diff
riscv: Implement xchg8/16() using Zabha

This adds runtime support for Zabha in xchg8/16() operations.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Andrea Parri <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20241103145153.105097-9-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
arch/riscv/include/asm/cmpxchg.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)