From patchwork Mon Apr 15 17:26:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiong Wang X-Patchwork-Id: 1085814 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="tIhBuQAo"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44jb5m1mCfz9ryj for ; Tue, 16 Apr 2019 03:26:52 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728002AbfDOR0u (ORCPT ); Mon, 15 Apr 2019 13:26:50 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:35397 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727988AbfDOR0t (ORCPT ); Mon, 15 Apr 2019 13:26:49 -0400 Received: by mail-wm1-f66.google.com with SMTP id y197so9677432wmd.0 for ; Mon, 15 Apr 2019 10:26:48 -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=tIhBuQAoKVRJTr19mtaGPXzMDDghSdaL/gtvMVpWTZWY8q4UqqITsjDffYDaZXbbez JtfFLqgWHsLE/vFBacaNNPJKH8xQUHUMQiA5SGmQvG2zPPnrI53dLCaE1jA+18xzTbmo SU98/JT3B/424k8Bu4u1M+ezXgBinCb9vjgd5Kc4OAmb1EesS5fMhBZpGUzpx7luB+4J /tHCaWC5UnEQJ3UMML5aewa54dRe2prNpQ6NFL0ihiCYXUgC5+wC/2HyHBEtLRAkUD2k +Qwe1G2e9zLbUb9H0mpKOe0G3ELNRfgmfj/cjzXSEBORTcgoTm5GyElC/Wz5fKOcm/TV zoLg== 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=K2sT00aWIf4u5dw7Pl0hSFyDZfqLZzwtnFe/CMxRTyRXZaueurE/cwPQGywriugYVd iAY+OazkTj+yWHKxfYf0Ug/93hnX6tH4xTb6G1MDu4asUF7tneZFDAokijANjFG+v2II aQzlXNr+ZT/Hm/e5MQoptEsN+QtExnu9ke7cmpnaUe2JlMcvG2Ncjo0JWDGwMMJoYIwr 1VDcccNMSYOeU55MB+4wojsSS1YnCxO88mfCI258Y3IVx0toOPnfxDnpUMARb+I6X8jJ aTxS0fZSqKHtVQeHHADDQXZgmVAFOtDJmCc1oSFR9WyJ9/kKjLLkNG19O0WMM3AWoOEQ SF6Q== X-Gm-Message-State: APjAAAUG6JZ6Yd2VFwr+hgpOYh+JNwNBdw9uRQ3qR9CJ4XHVOFAO4QTc jlPvGtNV/GOONZ+WJkRmBchrJA== X-Google-Smtp-Source: APXvYqwb1d6xMllY/yYYm5kHOV1I4dOB4a26DfPgr3jgknkgge8GMC6UrIlolJ1wWUqzxxCh8IFV4w== X-Received: by 2002:a1c:f115:: with SMTP id p21mr22711833wmh.93.1555349207762; Mon, 15 Apr 2019 10:26:47 -0700 (PDT) Received: from cbtest28.netronome.com ([217.38.71.146]) by smtp.gmail.com with ESMTPSA id v190sm27094232wme.18.2019.04.15.10.26.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 15 Apr 2019 10:26:46 -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 v4 bpf-next 10/15] powerpc: bpf: eliminate zero extension code-gen Date: Mon, 15 Apr 2019 18:26:20 +0100 Message-Id: <1555349185-12508-11-git-send-email-jiong.wang@netronome.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1555349185-12508-1-git-send-email-jiong.wang@netronome.com> References: <1555349185-12508-1-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: 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;