From patchwork Fri May 3 10:42:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiong Wang X-Patchwork-Id: 1094788 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="fRdx0czf"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44wTJZ3wmYz9s6w for ; Fri, 3 May 2019 20:43:58 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727558AbfECKn6 (ORCPT ); Fri, 3 May 2019 06:43:58 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:39272 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727554AbfECKn5 (ORCPT ); Fri, 3 May 2019 06:43:57 -0400 Received: by mail-wr1-f67.google.com with SMTP id a9so7255335wrp.6 for ; Fri, 03 May 2019 03:43:56 -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=HU+XJURX+8gtKclVt6Ec6skvPc1Pkhc0cIYSbM/6vbA=; b=fRdx0czfVcJxvB2gIvOCStJVxS67PoTg91xuQlYyBckvBX18vpyGBwBZ3Q2Actzft9 ChopHPQyueqV/t4hNsQk/6+rRHngHXxTl5xTxj8LvXAJx2fWZHy4+lOLIRFWNKdoVuE+ +2TfnRK+TBJFU38KEsHsBVdbNWQBAko3MAHyvtHXNxqoqOMxyiYw6vuCIcetSQFsmR+b bP9sJ64UbNcLjsqcsvGo4DjLQuze6X29kVFs36eEl3TlDWN8QSbOmwuCIUt/FDrD9hVV 7hTC7ndWNvtticzqMgJYRb/HGA7glFeLtrHD6wBaKO+0IMUoHxrmdR53k/HN0YCximWm 176A== 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=HU+XJURX+8gtKclVt6Ec6skvPc1Pkhc0cIYSbM/6vbA=; b=t/OE8sYlyNqCa8AJvhBsAuRJz7omQ0rxGfQ9sT0FXMIKHGiPEoREpelieMs2EZFzYD Kx5ENSyi1RjsYXn7QSuSOHrlO4+aNFLLnmiZTvjUTmAEZwHr0WXIa2xmSQvOEHbq9c6s vYTOpqKaUyW0WP25N6WdVbv2aUx6jdvk1Zj8neLbXFGroVqbL402sEZUGTsUSAq5r3kZ 6J3C2K183GzNr9u9RrcE86/wWjdPZcpBgxuMJnyfzF803woBzhEEtmK3YnrIC2EBVEGB Vitlp0wRw1jb3lWKlaSWTl9VwFxtERnQBDayRRqC7gRo7n7ZZ0UIX+IULWE0a7jMmSKp nozg== X-Gm-Message-State: APjAAAUBoIGKAEpjuPJRuXROXvosdB7LoXlgZe9aFlyS1u72z+RU8mHu FIeiqCcKdYzG5DJ/ecg6/WnsRA== X-Google-Smtp-Source: APXvYqwBxZloFdoUpSfEvnOWBCiaBQk2oLSm0bHBCEIEU9v7oS+ou3mgMDolY+DiyFQwhEJ0QnWiuQ== X-Received: by 2002:a5d:548d:: with SMTP id h13mr6704471wrv.218.1556880236018; Fri, 03 May 2019 03:43:56 -0700 (PDT) Received: from cbtest28.netronome.com ([217.38.71.146]) by smtp.gmail.com with ESMTPSA id r29sm1716999wra.56.2019.05.03.03.43.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 03 May 2019 03:43:55 -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 v6 bpf-next 12/17] powerpc: bpf: eliminate zero extension code-gen Date: Fri, 3 May 2019 11:42:39 +0100 Message-Id: <1556880164-10689-13-git-send-email-jiong.wang@netronome.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1556880164-10689-1-git-send-email-jiong.wang@netronome.com> References: <1556880164-10689-1-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 | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 21a1dcd..9fef73dc 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -557,9 +557,15 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, goto bpf_alu32_trunc; break; + /* + * ZEXT + */ + case BPF_ALU | BPF_ZEXT: + PPC_RLWINM(dst_reg, dst_reg, 0, 0, 31); + break; bpf_alu32_trunc: /* Truncate to 32-bits */ - if (BPF_CLASS(code) == BPF_ALU) + if (BPF_CLASS(code) == BPF_ALU && !fp->aux->verifier_zext) PPC_RLWINM(dst_reg, dst_reg, 0, 0, 31); break; @@ -1046,6 +1052,11 @@ 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;