From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7592BC47255 for ; Mon, 11 May 2020 12:55:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E79A20746 for ; Mon, 11 May 2020 12:55:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589201724; bh=fI1SN20EX/4GtN+QbDDKwe0uGIQ2raxx/8QClojgIe8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Zn6w3cyj15LMt2fOFPAMddYFLssp3MZlJzhP2Uxeq+Z9C9MIpBDJMJoEbM/J1tPXX iCEQWMAE+4MfOagpLBED3r1o3Jrn8d/c+7nWqP2Tmwmkley8E7/ThoY7Kfehna/6dL PtLJk1HZK8TdmHDuTlz/EW/Klb3B+8OKzWTzxMQw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729894AbgEKMzX (ORCPT ); Mon, 11 May 2020 08:55:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:55616 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726021AbgEKMzX (ORCPT ); Mon, 11 May 2020 08:55:23 -0400 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8853F20722; Mon, 11 May 2020 12:55:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589201722; bh=fI1SN20EX/4GtN+QbDDKwe0uGIQ2raxx/8QClojgIe8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=etOzo4t5b4u6f5ics6j3+lhzkrKUN/2V1AICzngaF8C0uUKuW8Mg5PQfavbLP/Ovc sB1hhGd6UUAkEK/1bnpkLITxHhaSbNAe+g5FLXAxJwbL26/zxpkAUIqj2BqmopS1Ia y9wb2cFrwTuWkWbxBEuqFfsqITcTFm8x4t6TYtAw= From: Will Deacon To: Luke Nelson , bpf@vger.kernel.org Cc: catalin.marinas@arm.com, Will Deacon , Thomas Gleixner , Christoffer Dall , linux-arm-kernel@lists.infradead.org, Andrii Nakryiko , Zi Shen Lim , Alexei Starovoitov , John Fastabend , Marc Zyngier , Mark Rutland , Ard Biesheuvel , Luke Nelson , Song Liu , Martin KaFai Lau , Daniel Borkmann , KP Singh , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Xi Wang , Yonghong Song , clang-built-linux@googlegroups.com, Alexios Zavras Subject: Re: [PATCH bpf-next v2 0/3] arm64 BPF JIT Optimizations Date: Mon, 11 May 2020 13:55:08 +0100 Message-Id: <158919609995.133008.6274359604607907270.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200508181547.24783-1-luke.r.nels@gmail.com> References: <20200508181547.24783-1-luke.r.nels@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 8 May 2020 11:15:43 -0700, Luke Nelson wrote: > This patch series introduces several optimizations to the arm64 BPF JIT. > The optimizations make use of arm64 immediate instructions to avoid > loading BPF immediates to temporary registers, when possible. > > In the process, we discovered two bugs in the logical immediate encoding > function in arch/arm64/kernel/insn.c using Serval. The series also fixes > the two bugs before introducing the optimizations. > > [...] Applied to arm64 (for-next/bpf), thanks! [1/3] arm64: insn: Fix two bugs in encoding 32-bit logical immediates https://git.kernel.org/arm64/c/579d1b3faa37 [2/3] bpf, arm64: Optimize AND,OR,XOR,JSET BPF_K using arm64 logical immediates https://git.kernel.org/arm64/c/fd49591cb49b [3/3] bpf, arm64: Optimize ADD,SUB,JMP BPF_K using arm64 add/sub immediates https://git.kernel.org/arm64/c/fd868f148189 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev