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Message-ID: <20240115125427.2914015-1-pulehui@huawei.com> Date: Mon, 15 Jan 2024 12:54:21 +0000 From: Pu Lehui <pulehui@...wei.com> To: <bpf@...r.kernel.org>, <linux-riscv@...ts.infradead.org>, <netdev@...r.kernel.org> CC: Björn Töpel <bjorn@...nel.org>, 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>, Yonghong Song <yhs@...com>, 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>, Conor Dooley <conor@...nel.org>, Luke Nelson <luke.r.nels@...il.com>, Pu Lehui <pulehui@...wei.com>, Pu Lehui <pulehui@...weicloud.com> Subject: [PATCH bpf-next v3 0/6] Zbb support and code simplification for RV64 JIT Add Zbb support [0] to optimize code size and performance of RV64 JIT. Meanwhile, adjust the code for unification and simplification. Tests test_bpf.ko and test_verifier have passed, as well as the relative testcases of test_progs*. Link: https://github.com/riscv/riscv-bitmanip/releases/download/1.0.0/bitmanip-1.0.0-38-g865e7a7.pdf [0] v3: - Change to early-exit code style and make code more explicit. v2: https://lore.kernel.org/bpf/20230919035839.3297328-1-pulehui@huaweicloud.com - Add runtime detection for Zbb instructions. - Correct formatting issues detected by checkpatch. v1: https://lore.kernel.org/bpf/20230913153413.1446068-1-pulehui@huaweicloud.com Pu Lehui (6): riscv, bpf: Unify 32-bit sign-extension to emit_sextw riscv, bpf: Unify 32-bit zero-extension to emit_zextw riscv, bpf: Simplify sext and zext logics in branch instructions riscv, bpf: Add necessary Zbb instructions riscv, bpf: Optimize sign-extention mov insns with Zbb support riscv, bpf: Optimize bswap insns with Zbb support arch/riscv/net/bpf_jit.h | 134 ++++++++++++++++++++ arch/riscv/net/bpf_jit_comp64.c | 210 +++++++++++--------------------- 2 files changed, 205 insertions(+), 139 deletions(-) -- 2.34.1
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