linux-kernel - Re: [PATCH bpf-next v2 0/7] Add support cpu v4 insns for RV64

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Message-ID: <87r0nshlox.fsf@all.your.base.are.belong.to.us>
Date:   Thu, 24 Aug 2023 10:46:38 +0200
From:   Björn Töpel <bjorn@...nel.org>
To:     Pu Lehui <pulehui@...weicloud.com>,
        linux-riscv@...ts.infradead.org, bpf@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Yonghong Song <yhs@...com>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Xu Kuohai <xukuohai@...wei.com>,
        Puranjay Mohan <puranjay12@...il.com>,
        Pu Lehui <pulehui@...wei.com>,
        Pu Lehui <pulehui@...weicloud.com>
Subject: Re: [PATCH bpf-next v2 0/7] Add support cpu v4 insns for RV64

Pu Lehui <pulehui@...weicloud.com> writes:

> Add support cpu v4 instructions for RV64. The relevant tests have passed as show bellow:
>
> # ./test_progs-cpuv4 -a ldsx_insn,verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap

[...]

> Summary: 6/166 PASSED, 0 SKIPPED, 0 FAILED
>
> NOTE: ldsx_insn testcase uses fentry and needs to rely on ftrace direct call [0].
> [0] https://lore.kernel.org/all/20230627111612.761164-1-suagrfillet@gmail.com/
>
> v2:
> - Use temporary reg to avoid clobbering the source reg in movs_8/16 insns. (Björn)
> - Add Acked-by

Thanks for getting the cpuv4 RISC-V support out so quickly!

For the series:
Tested-by: Björn Töpel <bjorn@...osinc.com>