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2025-05-20lib: Emulate AMO instructions when Zaamo is not availableChao-ying Fu
The AMO instructions are very critical for Linux so allow low-end RISC-V implementations without Zaamo to boot Linux by emulating AMO instructions using Zalrsc when OpenSBI is compiled without Zaamo. Signed-off-by: Chao-ying Fu <[email protected]> Signed-off-by: Anup Patel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Anup Patel <[email protected]>