From: Pu Lehui <pulehui@huaweicloud.com> To: bpf@vger.kernel.org, linux-riscv@lists.infradead.org, netdev@vger.kernel.org Cc: "Björn Töpel" <bjorn@kernel.org>, "Alexei Starovoitov" <ast@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Andrii Nakryiko" <andrii@kernel.org>, "Martin KaFai Lau" <martin.lau@linux.dev>, "Eduard Zingerman" <eddyz87@gmail.com>, "Song Liu" <song@kernel.org>, "Yonghong Song" <yhs@fb.com>, "John Fastabend" <john.fastabend@gmail.com>, "KP Singh" <kpsingh@kernel.org>, "Stanislav Fomichev" <sdf@google.com>, "Hao Luo" <haoluo@google.com>, "Jiri Olsa" <jolsa@kernel.org>, "Mykola Lysenko" <mykolal@fb.com>, "Manu Bretelle" <chantr4@gmail.com>, "Pu Lehui" <pulehui@huawei.com>, "Pu Lehui" <pulehui@huaweicloud.com> Subject: [PATCH bpf-next 2/5] riscv, bpf: Relax restrictions on Zbb instructions Date: Thu, 28 Mar 2024 12:49:13 +0000 [thread overview] Message-ID: <20240328124916.293173-3-pulehui@huaweicloud.com> (raw) In-Reply-To: <20240328124916.293173-1-pulehui@huaweicloud.com> From: Pu Lehui <pulehui@huawei.com> This patch relaxes the restrictions on the Zbb instructions. The hardware is capable of recognizing the Zbb instructions independently, eliminating the need for reliance on kernel compile configurations. Signed-off-by: Pu Lehui <pulehui@huawei.com> --- arch/riscv/net/bpf_jit.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/net/bpf_jit.h b/arch/riscv/net/bpf_jit.h index 5fc374ed98ea..bcf109b88df5 100644 --- a/arch/riscv/net/bpf_jit.h +++ b/arch/riscv/net/bpf_jit.h @@ -20,7 +20,7 @@ static inline bool rvc_enabled(void) static inline bool rvzbb_enabled(void) { - return IS_ENABLED(CONFIG_RISCV_ISA_ZBB) && riscv_has_extension_likely(RISCV_ISA_EXT_ZBB); + return riscv_has_extension_likely(RISCV_ISA_EXT_ZBB); } enum { -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Pu Lehui <pulehui@huaweicloud.com> To: bpf@vger.kernel.org, linux-riscv@lists.infradead.org, netdev@vger.kernel.org Cc: "Björn Töpel" <bjorn@kernel.org>, "Alexei Starovoitov" <ast@kernel.org>, "Daniel Borkmann" <daniel@iogearbox.net>, "Andrii Nakryiko" <andrii@kernel.org>, "Martin KaFai Lau" <martin.lau@linux.dev>, "Eduard Zingerman" <eddyz87@gmail.com>, "Song Liu" <song@kernel.org>, "Yonghong Song" <yhs@fb.com>, "John Fastabend" <john.fastabend@gmail.com>, "KP Singh" <kpsingh@kernel.org>, "Stanislav Fomichev" <sdf@google.com>, "Hao Luo" <haoluo@google.com>, "Jiri Olsa" <jolsa@kernel.org>, "Mykola Lysenko" <mykolal@fb.com>, "Manu Bretelle" <chantr4@gmail.com>, "Pu Lehui" <pulehui@huawei.com>, "Pu Lehui" <pulehui@huaweicloud.com> Subject: [PATCH bpf-next 2/5] riscv, bpf: Relax restrictions on Zbb instructions Date: Thu, 28 Mar 2024 12:49:13 +0000 [thread overview] Message-ID: <20240328124916.293173-3-pulehui@huaweicloud.com> (raw) In-Reply-To: <20240328124916.293173-1-pulehui@huaweicloud.com> From: Pu Lehui <pulehui@huawei.com> This patch relaxes the restrictions on the Zbb instructions. The hardware is capable of recognizing the Zbb instructions independently, eliminating the need for reliance on kernel compile configurations. Signed-off-by: Pu Lehui <pulehui@huawei.com> --- arch/riscv/net/bpf_jit.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/net/bpf_jit.h b/arch/riscv/net/bpf_jit.h index 5fc374ed98ea..bcf109b88df5 100644 --- a/arch/riscv/net/bpf_jit.h +++ b/arch/riscv/net/bpf_jit.h @@ -20,7 +20,7 @@ static inline bool rvc_enabled(void) static inline bool rvzbb_enabled(void) { - return IS_ENABLED(CONFIG_RISCV_ISA_ZBB) && riscv_has_extension_likely(RISCV_ISA_EXT_ZBB); + return riscv_has_extension_likely(RISCV_ISA_EXT_ZBB); } enum { -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2024-03-28 12:48 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-28 12:49 [PATCH bpf-next 0/5] Support local vmtest for riscv64 Pu Lehui 2024-03-28 12:49 ` Pu Lehui 2024-03-28 12:49 ` [PATCH bpf-next 1/5] selftests/bpf: Enable cross platform testing for local vmtest Pu Lehui 2024-03-28 12:49 ` Pu Lehui 2024-03-28 12:49 ` Pu Lehui [this message] 2024-03-28 12:49 ` [PATCH bpf-next 2/5] riscv, bpf: Relax restrictions on Zbb instructions Pu Lehui 2024-03-28 19:34 ` Stefan O'Rear 2024-03-28 19:34 ` Stefan O'Rear 2024-03-28 22:07 ` Conor Dooley 2024-03-28 22:07 ` Conor Dooley 2024-03-29 10:05 ` Pu Lehui 2024-03-29 10:05 ` Pu Lehui 2024-04-02 14:25 ` Björn Töpel 2024-04-02 14:25 ` Björn Töpel 2024-04-02 17:38 ` Conor Dooley 2024-04-02 17:38 ` Conor Dooley 2024-04-02 19:00 ` Björn Töpel 2024-04-02 19:00 ` Björn Töpel 2024-04-03 1:20 ` Conor Dooley 2024-04-03 1:20 ` Conor Dooley 2024-04-03 10:05 ` Pu Lehui 2024-04-03 10:05 ` Pu Lehui 2024-04-03 12:29 ` Conor Dooley 2024-04-03 12:29 ` Conor Dooley 2024-03-29 11:23 ` Conor Dooley 2024-03-29 11:23 ` Conor Dooley 2024-03-30 10:19 ` Pu Lehui 2024-03-30 10:19 ` Pu Lehui 2024-03-30 10:19 ` Pu Lehui 2024-03-30 10:19 ` Pu Lehui 2024-03-31 17:49 ` Samuel Holland 2024-03-31 17:49 ` Samuel Holland 2024-04-02 14:18 ` Björn Töpel 2024-04-02 14:18 ` Björn Töpel 2024-04-02 14:27 ` Björn Töpel 2024-04-02 14:27 ` Björn Töpel 2024-04-02 16:03 ` Daniel Borkmann 2024-04-02 16:03 ` Daniel Borkmann 2024-04-03 10:19 ` Pu Lehui 2024-04-03 10:19 ` Pu Lehui 2024-03-28 12:49 ` [PATCH bpf-next 3/5] selftests/bpf: Add config.riscv64 Pu Lehui 2024-03-28 12:49 ` Pu Lehui 2024-03-28 12:49 ` [PATCH bpf-next 4/5] selftests/bpf: Add DENYLIST.riscv64 Pu Lehui 2024-03-28 12:49 ` Pu Lehui 2024-03-28 12:49 ` [PATCH bpf-next 5/5] selftests/bpf: Add riscv64 configurations to local vmtest Pu Lehui 2024-03-28 12:49 ` Pu Lehui 2024-03-29 9:08 ` [PATCH bpf-next 0/5] Support local vmtest for riscv64 Eduard Zingerman 2024-03-29 9:08 ` Eduard Zingerman 2024-03-29 10:10 ` Pu Lehui 2024-03-29 10:10 ` Pu Lehui 2024-03-29 19:46 ` Eduard Zingerman 2024-03-29 19:46 ` Eduard Zingerman 2024-03-30 10:12 ` Pu Lehui 2024-03-30 10:12 ` Pu Lehui 2024-03-30 10:12 ` Pu Lehui 2024-03-30 10:12 ` Pu Lehui 2024-04-02 23:40 ` Eduard Zingerman 2024-04-02 23:40 ` Eduard Zingerman 2024-04-03 10:31 ` Pu Lehui 2024-04-03 10:31 ` Pu Lehui
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