From patchwork Thu May 5 14:09:27 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: 9024831 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 4ADCBBF29F for ; Thu, 5 May 2016 14:09:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6FD76203A5 for ; Thu, 5 May 2016 14:09:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E551203A0 for ; Thu, 5 May 2016 14:09:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753426AbcEEOJn (ORCPT ); Thu, 5 May 2016 10:09:43 -0400 Received: from e24smtp05.br.ibm.com ([32.104.18.26]:60966 "EHLO e24smtp05.br.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751270AbcEEOJm (ORCPT ); Thu, 5 May 2016 10:09:42 -0400 Received: from localhost by e24smtp05.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 5 May 2016 11:09:40 -0300 Received: from d24dlp01.br.ibm.com (9.18.248.204) by e24smtp05.br.ibm.com (10.172.0.141) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Thu, 5 May 2016 11:09:39 -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 d24relay01.br.ibm.com (d24relay01.br.ibm.com [9.8.31.16]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id 214D53520078; Thu, 5 May 2016 10:09:25 -0400 (EDT) Received: from d24av01.br.ibm.com (d24av01.br.ibm.com [9.8.31.91]) by d24relay01.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u45D7PeX4468852; Thu, 5 May 2016 10:07:25 -0300 Received: from d24av01.br.ibm.com (localhost [127.0.0.1]) by d24av01.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u45E9bCb023461; Thu, 5 May 2016 11:09:38 -0300 Received: from dublin.ltc.br.ibm.com ([9.80.223.1]) by d24av01.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u45E9XV1023330; Thu, 5 May 2016 11:09:34 -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: Thu, 5 May 2016 11:09:27 -0300 Message-Id: <1462457367-15445-1-git-send-email-pfsmorigo@linux.vnet.ibm.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <20160503081345.GA17118@gondor.apana.org.au> References: <20160503081345.GA17118@gondor.apana.org.au> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16050514-0033-0000-0000-00000D1B0801 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=-9.0 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 ). Signed-off-by: Paulo Flabiano Smorigo --- 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) = @_;