From patchwork Fri Apr 29 14:03:05 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paulo Flabiano Smorigo X-Patchwork-Id: 8983201 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2FF1FBF440 for ; Fri, 29 Apr 2016 14:12:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1FBB3201CE for ; Fri, 29 Apr 2016 14:12:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A802201B9 for ; Fri, 29 Apr 2016 14:12:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753479AbcD2OMU (ORCPT ); Fri, 29 Apr 2016 10:12:20 -0400 Received: from e24smtp03.br.ibm.com ([32.104.18.24]:57868 "EHLO e24smtp03.br.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753230AbcD2OMT (ORCPT ); Fri, 29 Apr 2016 10:12:19 -0400 Received: from localhost by e24smtp03.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 29 Apr 2016 11:12:16 -0300 Received: from d24dlp01.br.ibm.com (9.18.248.204) by e24smtp03.br.ibm.com (10.172.0.139) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Fri, 29 Apr 2016 11:12:13 -0300 X-IBM-Helo: d24dlp01.br.ibm.com X-IBM-MailFrom: pfsmorigo@linux.vnet.ibm.com X-IBM-RcptTo: linux-crypto@vger.kernel.org;linux-kernel@vger.kernel.org Received: from d24relay02.br.ibm.com (d24relay02.br.ibm.com [9.13.184.26]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id CB0E835204F7; Fri, 29 Apr 2016 10:03:40 -0400 (EDT) Received: from d24av03.br.ibm.com (d24av03.br.ibm.com [9.8.31.95]) by d24relay02.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u3TD3m9Z34210074; Fri, 29 Apr 2016 10:03:48 -0300 Received: from d24av03.br.ibm.com (localhost [127.0.0.1]) by d24av03.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u3TE3rq2008708; Fri, 29 Apr 2016 11:03:53 -0300 Received: from dublin.ltc.br.ibm.com ([9.80.228.64]) by d24av03.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u3TE3nuc008563; Fri, 29 Apr 2016 11:03:50 -0300 From: Paulo Flabiano Smorigo To: linux-kernel@vger.kernel.org Cc: Paulo Flabiano Smorigo , "Leonidas S. Barbosa" , Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org (open list:IBM Power VMX Cryptographic instructions) Subject: [PATCH] crypto: vmx - comply with ABIs that specify vrsave as reserved. Date: Fri, 29 Apr 2016 11:03:05 -0300 Message-Id: <1461938585-7933-1-git-send-email-pfsmorigo@linux.vnet.ibm.com> X-Mailer: git-send-email 2.5.5 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16042914-0025-0000-0000-000010A60B02 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It gives significant improvements ( ~+15%) on some modes. These code has been adopted from OpenSSL project in collaboration with the original author (Andy Polyakov ). --- drivers/crypto/vmx/ppc-xlate.pl | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/crypto/vmx/ppc-xlate.pl b/drivers/crypto/vmx/ppc-xlate.pl index b999733..9f4994c 100644 --- a/drivers/crypto/vmx/ppc-xlate.pl +++ b/drivers/crypto/vmx/ppc-xlate.pl @@ -139,6 +139,26 @@ my $vmr = sub { " vor $vx,$vy,$vy"; }; +# Some ABIs specify vrsave, special-purpose register #256, as reserved +# for system use. +my $no_vrsave = ($flavour =~ /aix|linux64le/); +my $mtspr = sub { + my ($f,$idx,$ra) = @_; + if ($idx == 256 && $no_vrsave) { + " or $ra,$ra,$ra"; + } else { + " mtspr $idx,$ra"; + } +}; +my $mfspr = sub { + my ($f,$rd,$idx) = @_; + if ($idx == 256 && $no_vrsave) { + " li $rd,-1"; + } else { + " mfspr $rd,$idx"; + } +}; + # PowerISA 2.06 stuff sub vsxmem_op { my ($f, $vrt, $ra, $rb, $op) = @_;