From patchwork Tue Mar 26 18:05:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiong Wang X-Patchwork-Id: 1065892 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=netronome.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="Uwz6kXSt"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44TJx93fgDz9sT1 for ; Wed, 27 Mar 2019 05:06:53 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732527AbfCZSGw (ORCPT ); Tue, 26 Mar 2019 14:06:52 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:35077 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732496AbfCZSGv (ORCPT ); Tue, 26 Mar 2019 14:06:51 -0400 Received: by mail-wr1-f65.google.com with SMTP id w1so15544320wrp.2 for ; Tue, 26 Mar 2019 11:06:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Pi+jMPgfzj2fBkAwzCkG0vyOGnD4cZfJGlYpVzkjSMY=; b=Uwz6kXStZ3+GS00JjBgym7IHmoe5zQCtHuhTZWZ6whi8Paulx4I9osEYbAp8OAxb1r SN2R82bPatlTfGf7/ZDGsoX2AoKGLUHynBD4IcnNQN4nth3uhGZRFBxAIgKS1VjxkQYt Z1u+bGRrQhSNFQ40QVyNt5aahhgDaZZV/CywzKNqP1GUejZj6gDZtoyneyUNh0yD9qOO zxcvCDG183uaTZ/1QqG5h+1pXRv/HKJrxkCCzJpLxOXNlVXgRTKx/W/OfBwjHeesdTpt ydcoblscucz4JYutnXHtEprSx+fZ06ZbJlL/DFrCxZH4HRv9F7JDtnyFW1A+el7iMl0Q JjKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Pi+jMPgfzj2fBkAwzCkG0vyOGnD4cZfJGlYpVzkjSMY=; b=OvDvQXLzx/NW9ZCRFqKQ0Rm3egUvAbhZ9DfmOY/c68Amsn9Sx4bhiVwbdJATbSanGS 0mZDbNDqUp8VV5Uoae+Sxilz6BCQfoz8q0Ng1woeUKoMdsXdu/5ttO9SbvFqzTHWs/yw RGHdDcW6jDfjg9g7QDu5LvFY5bzxt+6hUBvBD17TrXg6ueGR5XNChws34Mmtq2L9wkJJ 69UIoTE5S5yzlu2kKcz++hfcDjgHJIjPiCqdEF1rtG0BA/VJRBDLkCeUzAybeuyHI0nY JX6j2fhMal54SgtqEouU10kREebWqggQx0GdlwBkKLpGjp3UqZ8Vdcfw4B356/pkix+g C7cQ== X-Gm-Message-State: APjAAAUOhFuPh+uhfkDF2s5BGGHeJqeID+0PYGsM6okrl1yal8/TcKoz BYUQ8byGd32m3g0cpim9mJEsbV5QrHg= X-Google-Smtp-Source: APXvYqzRW/JCTfVndo3ix6hVnik+3OhuUgzyLEs1Bmvdrdyvk0jE6wPonj8TWWeDZgJqRDGyaufR0g== X-Received: by 2002:a5d:694a:: with SMTP id r10mr17263748wrw.313.1553623609369; Tue, 26 Mar 2019 11:06:49 -0700 (PDT) Received: from cbtest28.netronome.com ([217.38.71.146]) by smtp.gmail.com with ESMTPSA id i28sm36697534wrc.32.2019.03.26.11.06.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 26 Mar 2019 11:06:48 -0700 (PDT) From: Jiong Wang To: alexei.starovoitov@gmail.com, daniel@iogearbox.net Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, oss-drivers@netronome.com, Jiong Wang , "David S . Miller" Subject: [PATCH/RFC bpf-next 11/16] sparc: bpf: eliminate zero extension code-gen Date: Tue, 26 Mar 2019 18:05:34 +0000 Message-Id: <1553623539-15474-12-git-send-email-jiong.wang@netronome.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1553623539-15474-1-git-send-email-jiong.wang@netronome.com> References: <1553623539-15474-1-git-send-email-jiong.wang@netronome.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Cc: David S. Miller Signed-off-by: Jiong Wang --- arch/sparc/net/bpf_jit_comp_64.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/sparc/net/bpf_jit_comp_64.c b/arch/sparc/net/bpf_jit_comp_64.c index 65428e7..e58f84e 100644 --- a/arch/sparc/net/bpf_jit_comp_64.c +++ b/arch/sparc/net/bpf_jit_comp_64.c @@ -1144,7 +1144,8 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx) break; do_alu32_trunc: - if (BPF_CLASS(code) == BPF_ALU) + if (BPF_CLASS(code) == BPF_ALU && + ctx->prog->aux->no_verifier_zext) emit_alu_K(SRL, dst, 0, ctx); break; @@ -1432,6 +1433,11 @@ static void jit_fill_hole(void *area, unsigned int size) *ptr++ = 0x91d02005; /* ta 5 */ } +bool bpf_jit_hardware_zext(void) +{ + return false; +} + struct sparc64_jit_data { struct bpf_binary_header *header; u8 *image;