riscv, bpf: Add Zacas instructions
Add Zacas instructions introduced by [0] to reduce code size and improve performance of RV64 JIT. Signed-off-by:Pu Lehui <pulehui@huawei.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Tested-by:
Björn Töpel <bjorn@rivosinc.com> Reviewed-by:
Björn Töpel <bjorn@rivosinc.com> Acked-by:
Björn Töpel <bjorn@kernel.org> Link: https://github.com/riscvarchive/riscv-zacas/releases/download/v1.0/riscv-zacas.pdf [0] Link: https://lore.kernel.org/bpf/20250719091730.2660197-7-pulehui@huaweicloud.com
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