From patchwork Wed Apr 10 19:50:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiong Wang X-Patchwork-Id: 1083584 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.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=bpf-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="HzZ/RMLb"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44fZXh6sjTz9s6w for ; Thu, 11 Apr 2019 05:51:16 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726215AbfDJTvP (ORCPT ); Wed, 10 Apr 2019 15:51:15 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:37923 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726630AbfDJTu4 (ORCPT ); Wed, 10 Apr 2019 15:50:56 -0400 Received: by mail-wr1-f67.google.com with SMTP id k11so4366463wro.5 for ; Wed, 10 Apr 2019 12:50:55 -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=FyyxR9Iqk6cAH0oBjCaJb0bcVV0NGMOOW5Oun5gFHdM=; b=HzZ/RMLbRR0LlDWzLnkZuiW8/E4JzLPukqHbMowxvtAH3ngpu8hPjb2RrOLrSv1Zzz w3bnZ9bplhvqqpT2vV+cf4cqUi7D7QkyFZvtxdXXjEGdyzLgymBA/fBTWvoF+zEAY3Ed +tINQH6XYx7+pgTtDEaUNbvphEFWz2tDq8dUaRHu8KrfaYAcL3WqjrzT2odP8eAgOn1L vYPo6kz9EvCe7rasm7djKef9Q0y0nOpB4PYQXV+FzcyCaSq1GOraYf9MNEtpyTu0XFcy j+UwxBRfDt2ggWnJeu0YcCFmwrlsn4lzxGrQXn+iGfxAFL8kwBrR0qDBuaAtRXUPjzmY 1B+w== 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=FyyxR9Iqk6cAH0oBjCaJb0bcVV0NGMOOW5Oun5gFHdM=; b=ts4kS5TdlO8kdaGXq6mI6HSpgG9TNHr6nBzWR0Pw9NCJSIF8zGaWD3mL5cLYc/q6Yo 7sC6r0SyW/aGM4bsvGRb6Yme0IdLp/NcPHPUgPevOAFU27XWj6mg27ZPoMt0TgLPtJaP +ABWWM3zT1O4PFt3L0EVww7VnSonE3EU2NhyE9JxNA2VmoAhi7Rhx50cvk4YwjbkNN1i 0X5w+UkkTIFvPbecaYCfTouSOxWcOfYKBQePcxKbllOnNHhr3e+MZKrPEYSFrD+X+whb 09eY2MlY3+PJXVueEtXmUbDI89DrT5WxMTNaevGuaENOvS+EmgLaBXUjgklQYwsqD7Vu Aozg== X-Gm-Message-State: APjAAAVquDLUVvE4FVZ0Js879W7Sc9m4gF6i3SSN+LAsDMNNDOd3B/IA HBVFStJIBbX43NBLKpXYwgFtuw== X-Google-Smtp-Source: APXvYqzxXf6ZJEMOzZFrLqKmI0tx2yu77e9UcA0swTVWCzqiYYMtnFBeClEJ9Ap7k5/MJnMoJ1qb6A== X-Received: by 2002:adf:f30a:: with SMTP id i10mr27949031wro.111.1554925854993; Wed, 10 Apr 2019 12:50:54 -0700 (PDT) Received: from cbtest28.netronome.com ([217.38.71.146]) by smtp.gmail.com with ESMTPSA id 4sm2288540wmg.12.2019.04.10.12.50.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 10 Apr 2019 12:50:54 -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 , "Naveen N . Rao" , Sandipan Das Subject: [PATCH/RFC v2 bpf-next 14/19] powerpc: bpf: eliminate zero extension code-gen Date: Wed, 10 Apr 2019 20:50:28 +0100 Message-Id: <1554925833-7333-15-git-send-email-jiong.wang@netronome.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554925833-7333-1-git-send-email-jiong.wang@netronome.com> References: <1554925833-7333-1-git-send-email-jiong.wang@netronome.com> Sender: bpf-owner@vger.kernel.org Precedence: bulk List-Id: netdev.vger.kernel.org Cc: Naveen N. Rao Cc: Sandipan Das Signed-off-by: Jiong Wang --- arch/powerpc/net/bpf_jit_comp64.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 21a1dcd..d10621b 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -559,7 +559,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, bpf_alu32_trunc: /* Truncate to 32-bits */ - if (BPF_CLASS(code) == BPF_ALU) + if (BPF_CLASS(code) == BPF_ALU && fp->aux->no_verifier_zext) PPC_RLWINM(dst_reg, dst_reg, 0, 0, 31); break; @@ -1046,6 +1046,11 @@ struct powerpc64_jit_data { struct codegen_context ctx; }; +bool bpf_jit_hardware_zext(void) +{ + return false; +} + struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp) { u32 proglen;