From: Markus Stockhausen Subject: [PATCH v1 0/3] SHA256 for PPC/SPE Date: Sat, 24 Jan 2015 22:10:53 +0100 Message-ID: <5ad377b3-e491-4c35-8b89-de1dfd0749a6@EXCHANGE.collogia.de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-542ff329-afb5-4472-bf3b-66ee9496f1ca" Cc: linuxppc-dev@lists.ozlabs.org To: Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" List-Id: linux-crypto.vger.kernel.org This is a multi-part message in MIME format. ------=_NextPartTM-000-542ff329-afb5-4472-bf3b-66ee9496f1ca Content-Type: text/plain [PATCH v1 0/3] SHA256 for PPC/SPE The following patches add support for SIMD accelerated SHA256 calculation on PPC processors with SPE instruction set. The implementation takes care of the following constraints: - independant of processor endianess - fallback to generic code if called from interrupt context - disable preemtion only for short intervals Performance numbers from insmod tcrypt sec=3 mode=304 taken on e500v2 800 MHz (TP Link WDR4900) data per generic this patch speedup cycles length update bytes/sec bytes/sec factor per byte ------ ------- ---------- ---------- ------- -------- 16 16 5,558,336 8,248,272 x1.48 96.99 64 16 10,730,602 14,872,789 x1.38 53.79 64 64 12,841,621 19,268,885 x1.50 41.52 256 16 16,223,317 21,295,957 x1.31 37.57 256 64 21,135,957 30,941,696 x1.46 25,86 256 256 22,664,448 35,765,845 x1.57 22,37 1024 16 18,608,128 23,893,674 x1.28 33.48 1024 256 27,427,840 43,427,498 x1.58 18.42 1024 1024 28,064,768 45,659,136 x1.62 17.52 2048 16 19,054,592 24,425,130 x1.28 32.75 2048 256 28,435,797 45,087,402 x1.58 17.74 2048 1024 29,091,157 47,395,498 x1.62 16.88 2048 2048 29,225,642 47,756,629 x1.63 16.75 ------=_NextPartTM-000-542ff329-afb5-4472-bf3b-66ee9496f1ca Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" **************************************************************************** Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. Über das Internet versandte E-Mails können unter fremden Namen erstellt oder manipuliert werden. Deshalb ist diese als E-Mail verschickte Nachricht keine rechtsverbindliche Willenserklärung. Collogia Unternehmensberatung AG Ubierring 11 D-50678 Köln Vorstand: Kadir Akin Dr. Michael Höhnerbach Vorsitzender des Aufsichtsrates: Hans Kristian Langva Registergericht: Amtsgericht Köln Registernummer: HRB 52 497 This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. e-mails sent over the internet may have been written under a wrong name or been manipulated. That is why this message sent as an e-mail is not a legally binding declaration of intention. Collogia Unternehmensberatung AG Ubierring 11 D-50678 Köln executive board: Kadir Akin Dr. Michael Höhnerbach President of the supervisory board: Hans Kristian Langva Registry office: district court Cologne Register number: HRB 52 497 **************************************************************************** ------=_NextPartTM-000-542ff329-afb5-4472-bf3b-66ee9496f1ca Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXhwcGMt ZGV2IG1haWxpbmcgbGlzdApMaW51eHBwYy1kZXZAbGlzdHMub3psYWJzLm9yZwpodHRwczovL2xp c3RzLm96bGFicy5vcmcvbGlzdGluZm8vbGludXhwcGMtZGV2 ------=_NextPartTM-000-542ff329-afb5-4472-bf3b-66ee9496f1ca--