From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 330AEC48BE5 for ; Tue, 22 Jun 2021 08:38:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 170AA61356 for ; Tue, 22 Jun 2021 08:38:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230380AbhFVIlL (ORCPT ); Tue, 22 Jun 2021 04:41:11 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:28679 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229807AbhFVIlJ (ORCPT ); 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auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTmljayBLb3NzaWZpZGlzDQo+IFNlbnQ6IDIyIEp1bmUgMjAyMSAwMjowOA0KPiANCj4g zqPPhM65z4IgMjAyMS0wNi0xNyAxODoyNywgTWF0dGVvIENyb2NlIM6tzrPPgc6xz4jOtToNCj4g PiArDQo+ID4gK3ZvaWQgKl9fbWVtc2V0KHZvaWQgKnMsIGludCBjLCBzaXplX3QgY291bnQpDQo+ ID4gK3sNCj4gPiArCXVuaW9uIHR5cGVzIGRlc3QgPSB7IC51OCA9IHMgfTsNCj4gPiArDQo+ID4g KwlpZiAoY291bnQgPj0gTUlOX1RIUkVTSE9MRCkgew0KPiA+ICsJCWNvbnN0IGludCBieXRlc19s b25nID0gQklUU19QRVJfTE9ORyAvIDg7DQo+IA0KPiBZb3UgY291bGQgbWFrZSAnY29uc3QgaW50 IGJ5dGVzX2xvbmcgPSBCSVRTX1BFUl9MT05HIC8gODsnDQoNCldoYXQgaXMgd3Jvbmcgd2l0aCBz aXplb2YgKGxvbmcpID8NCi4uLg0KPiA+ICsJCXVuc2lnbmVkIGxvbmcgY3UgPSAodW5zaWduZWQg bG9uZyljOw0KPiA+ICsNCj4gPiArCQkvKiBDb21wb3NlIGFuIHVsb25nIHdpdGggJ2MnIHJlcGVh dGVkIDQvOCB0aW1lcyAqLw0KPiA+ICsJCWN1IHw9IGN1IDw8IDg7DQo+ID4gKwkJY3UgfD0gY3Ug PDwgMTY7DQo+ID4gKyNpZiBCSVRTX1BFUl9MT05HID09IDY0DQo+ID4gKwkJY3UgfD0gY3UgPDwg MzI7DQo+ID4gKyNlbmRpZg0KPiA+ICsNCj4gDQo+IFlvdSBkb24ndCBoYXZlIHRvIGNyZWF0ZSBj dSBoZXJlLCB5b3UnbGwgZmlsbCBkZXN0IGJ1ZmZlciB3aXRoICdjJw0KPiBhbnl3YXkgc28gYWZ0 ZXIgZmlsbGluZyB1cCBlbm91Z2ggJ2MncyB0byBiZSBhYmxlIHRvIGdyYWIgYW4gYWxpZ25lZA0K PiB3b3JkIGZ1bGwgb2YgdGhlbSBmcm9tIGRlc3QsIHlvdSBjYW4ganVzdCBncmFiIHRoYXQgd29y ZCBhbmQga2VlcA0KPiBmaWxsaW5nIHVwIGRlc3Qgd2l0aCBpdC4NCg0KVGhhdCB3aWxsIGJlIGEg bG90IHNsb3dlciAtIGVzcGVjaWFsbHkgaWYgcnVuIG9uIHNvbWV0aGluZyBsaWtlIHg4Ni4NCkEg d3JpdGUtcmVhZCBvZiB0aGUgc2FtZSBzaXplIGlzIG9wdGltaXNlZCBieSB0aGUgc3RvcmUtbG9h ZCBmb3J3YXJkZXIuDQpCdXQgdGhlIGJ5dGUgd3JpdGUsIHdvcmQgcmVhZCB3aWxsIGhhdmUgdG8g Z28gdmlhIHRoZSBjYWNoZS4NCg0KWW91IGNhbiBqdXN0IHdyaXRlOg0KCWN1ID0gKHVuc2lnbmVk IGxvbmcpYyAqIDB4MDEwMTAxMDEwMTAxMDEwMXVsbDsNCmFuZCBsZXQgdGhlIGNvbXBpbGVyIHNv cnQgb3V0IHRoZSBiZXN0IHdheSB0byBnZW5lcmF0ZSB0aGUgY29uc3RhbnQuDQoNCj4gDQo+ID4g KyNpZm5kZWYgQ09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NFU1MNCj4gPiArCQkv KiBGaWxsIHRoZSBidWZmZXIgb25lIGJ5dGUgYXQgdGltZSB1bnRpbCB0aGUgZGVzdGluYXRpb24N Cj4gPiArCQkgKiBpcyBhbGlnbmVkIG9uIGEgMzIvNjQgYml0IGJvdW5kYXJ5Lg0KPiA+ICsJCSAq Lw0KPiA+ICsJCWZvciAoOyBjb3VudCAmJiBkZXN0LnVwdHIgJSBieXRlc19sb25nOyBjb3VudC0t KQ0KPiANCj4gWW91IGNvdWxkIHJldXNlICYgbWFzayBoZXJlIGluc3RlYWQgb2YgJSBieXRlc19s b25nLg0KPiANCj4gPiArCQkJKmRlc3QudTgrKyA9IGM7DQo+ID4gKyNlbmRpZg0KPiANCj4gSSBu b3RpY2VkIHlvdSBhbHNvIHVzZWQgQ09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NF U1Mgb24geW91cg0KPiBtZW1jcHkgcGF0Y2gsIGlzIGl0IHdvcnRoIGl0IGhlcmUgPyBUbyBiZWdp biB3aXRoIHJpc2N2IGRvZXNuJ3Qgc2V0IGl0DQo+IGFuZCBldmVuIGlmIGl0IGRpZCB3ZSBhcmUg dGFsa2luZyBhYm91dCBhIGxvb3AgdGhhdCB3aWxsIHJ1biBqdXN0IGEgZmV3DQo+IHRpbWVzIHRv IHJlYWNoIHRoZSBhbGlnbm1lbnQgYm91bmRhcnkgKHdvcnN0IGNhc2Ugc2NlbmFyaW8gaXQnbGwg cnVuIDcNCj4gdGltZXMpLCBJIGRvbid0IHRoaW5rIHdlIGdhaW4gbXVjaCBoZXJlLCBldmVuIGZv ciBhcmNocyB0aGF0IGhhdmUNCj4gZWZmaWNpZW50IHVuYWxpZ25lZCBhY2Nlc3MuDQoNCldpdGgg Q09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NFU1MgaXQgcHJvYmFibHkgaXNuJ3Qg d29ydGgNCmV2ZW4gY2hlY2tpbmcgdGhlIGFsaWdubWVudC4NCldoaWxlIGFsaWduaW5nIHRoZSBj b3B5IHdpbGwgYmUgcXVpY2tlciBmb3IgYW4gdW5hbGlnbmVkIGJ1ZmZlciB0aGV5DQphbG1vc3Qg Y2VydGFpbmx5IGRvbid0IGhhcHBlbiBvZnRlbiBlbm91Z2ggdG8gd29ycnkgYWJvdXQuDQpJbiBh bnkgY2FzZSB5b3UnZCB3YW50IHRvIGRvIGEgbWlzYWxpZ25lZCB3b3JkIHdyaXRlIHRvIHRoZSBz dGFydA0Kb2YgdGhlIGJ1ZmZlciAtIG5vdCBzZXBhcmF0ZSBieXRlIHdyaXRlcy4NClByb3ZpZGVk IHRoZSBidWZmZXIgaXMgbG9uZyBlbm91Z2ggeW91IGNhbiBhbHNvIGRvIGEgbWlzYWxpZ25lZCB3 cml0ZQ0KdG8gdGhlIGVuZCBvZiB0aGUgYnVmZmVyIGJlZm9yZSBmaWxsaW5nIGZyb20gdGhlIHN0 YXJ0Lg0KDQpJIHN1c3BlY3QgeW91IG1heSBuZWVkIGVpdGhlciBiYXJyaWVyKCkgb3IgdXNlIGEg cHRyIHRvIHBhY2tlZA0KdG8gYXZvaWQgdGhlIHBlcnZlcnRlZCAndW5kZWZpbmVkIGJlaGF2aW91 cicgZnViYXIuJw0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBC cmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdp c3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41BB9C48BE5 for ; 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Tue, 22 Jun 2021 09:38:50 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.018; Tue, 22 Jun 2021 09:38:50 +0100 From: David Laight To: 'Nick Kossifidis' , Matteo Croce CC: "linux-riscv@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Atish Patra , "Emil Renner Berthing" , Akira Tsukamoto , Drew Fustini , Bin Meng , Guo Ren Subject: RE: [PATCH v3 3/3] riscv: optimized memset Thread-Topic: [PATCH v3 3/3] riscv: optimized memset Thread-Index: AQHXZwMJWYnk4yvoiESUZuZXhHkP6qsfsYlg Date: Tue, 22 Jun 2021 08:38:50 +0000 Message-ID: References: <20210617152754.17960-1-mcroce@linux.microsoft.com> <20210617152754.17960-4-mcroce@linux.microsoft.com> <17cd289430f08f2b75b7f04242c646f6@mailhost.ics.forth.gr> In-Reply-To: <17cd289430f08f2b75b7f04242c646f6@mailhost.ics.forth.gr> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210622_013856_159587_0664EAC1 X-CRM114-Status: GOOD ( 21.97 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org RnJvbTogTmljayBLb3NzaWZpZGlzDQo+IFNlbnQ6IDIyIEp1bmUgMjAyMSAwMjowOA0KPiANCj4g zqPPhM65z4IgMjAyMS0wNi0xNyAxODoyNywgTWF0dGVvIENyb2NlIM6tzrPPgc6xz4jOtToNCj4g PiArDQo+ID4gK3ZvaWQgKl9fbWVtc2V0KHZvaWQgKnMsIGludCBjLCBzaXplX3QgY291bnQpDQo+ ID4gK3sNCj4gPiArCXVuaW9uIHR5cGVzIGRlc3QgPSB7IC51OCA9IHMgfTsNCj4gPiArDQo+ID4g KwlpZiAoY291bnQgPj0gTUlOX1RIUkVTSE9MRCkgew0KPiA+ICsJCWNvbnN0IGludCBieXRlc19s b25nID0gQklUU19QRVJfTE9ORyAvIDg7DQo+IA0KPiBZb3UgY291bGQgbWFrZSAnY29uc3QgaW50 IGJ5dGVzX2xvbmcgPSBCSVRTX1BFUl9MT05HIC8gODsnDQoNCldoYXQgaXMgd3Jvbmcgd2l0aCBz aXplb2YgKGxvbmcpID8NCi4uLg0KPiA+ICsJCXVuc2lnbmVkIGxvbmcgY3UgPSAodW5zaWduZWQg bG9uZyljOw0KPiA+ICsNCj4gPiArCQkvKiBDb21wb3NlIGFuIHVsb25nIHdpdGggJ2MnIHJlcGVh dGVkIDQvOCB0aW1lcyAqLw0KPiA+ICsJCWN1IHw9IGN1IDw8IDg7DQo+ID4gKwkJY3UgfD0gY3Ug PDwgMTY7DQo+ID4gKyNpZiBCSVRTX1BFUl9MT05HID09IDY0DQo+ID4gKwkJY3UgfD0gY3UgPDwg MzI7DQo+ID4gKyNlbmRpZg0KPiA+ICsNCj4gDQo+IFlvdSBkb24ndCBoYXZlIHRvIGNyZWF0ZSBj dSBoZXJlLCB5b3UnbGwgZmlsbCBkZXN0IGJ1ZmZlciB3aXRoICdjJw0KPiBhbnl3YXkgc28gYWZ0 ZXIgZmlsbGluZyB1cCBlbm91Z2ggJ2MncyB0byBiZSBhYmxlIHRvIGdyYWIgYW4gYWxpZ25lZA0K PiB3b3JkIGZ1bGwgb2YgdGhlbSBmcm9tIGRlc3QsIHlvdSBjYW4ganVzdCBncmFiIHRoYXQgd29y ZCBhbmQga2VlcA0KPiBmaWxsaW5nIHVwIGRlc3Qgd2l0aCBpdC4NCg0KVGhhdCB3aWxsIGJlIGEg bG90IHNsb3dlciAtIGVzcGVjaWFsbHkgaWYgcnVuIG9uIHNvbWV0aGluZyBsaWtlIHg4Ni4NCkEg d3JpdGUtcmVhZCBvZiB0aGUgc2FtZSBzaXplIGlzIG9wdGltaXNlZCBieSB0aGUgc3RvcmUtbG9h ZCBmb3J3YXJkZXIuDQpCdXQgdGhlIGJ5dGUgd3JpdGUsIHdvcmQgcmVhZCB3aWxsIGhhdmUgdG8g Z28gdmlhIHRoZSBjYWNoZS4NCg0KWW91IGNhbiBqdXN0IHdyaXRlOg0KCWN1ID0gKHVuc2lnbmVk IGxvbmcpYyAqIDB4MDEwMTAxMDEwMTAxMDEwMXVsbDsNCmFuZCBsZXQgdGhlIGNvbXBpbGVyIHNv cnQgb3V0IHRoZSBiZXN0IHdheSB0byBnZW5lcmF0ZSB0aGUgY29uc3RhbnQuDQoNCj4gDQo+ID4g KyNpZm5kZWYgQ09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NFU1MNCj4gPiArCQkv KiBGaWxsIHRoZSBidWZmZXIgb25lIGJ5dGUgYXQgdGltZSB1bnRpbCB0aGUgZGVzdGluYXRpb24N Cj4gPiArCQkgKiBpcyBhbGlnbmVkIG9uIGEgMzIvNjQgYml0IGJvdW5kYXJ5Lg0KPiA+ICsJCSAq Lw0KPiA+ICsJCWZvciAoOyBjb3VudCAmJiBkZXN0LnVwdHIgJSBieXRlc19sb25nOyBjb3VudC0t KQ0KPiANCj4gWW91IGNvdWxkIHJldXNlICYgbWFzayBoZXJlIGluc3RlYWQgb2YgJSBieXRlc19s b25nLg0KPiANCj4gPiArCQkJKmRlc3QudTgrKyA9IGM7DQo+ID4gKyNlbmRpZg0KPiANCj4gSSBu b3RpY2VkIHlvdSBhbHNvIHVzZWQgQ09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NF U1Mgb24geW91cg0KPiBtZW1jcHkgcGF0Y2gsIGlzIGl0IHdvcnRoIGl0IGhlcmUgPyBUbyBiZWdp biB3aXRoIHJpc2N2IGRvZXNuJ3Qgc2V0IGl0DQo+IGFuZCBldmVuIGlmIGl0IGRpZCB3ZSBhcmUg dGFsa2luZyBhYm91dCBhIGxvb3AgdGhhdCB3aWxsIHJ1biBqdXN0IGEgZmV3DQo+IHRpbWVzIHRv IHJlYWNoIHRoZSBhbGlnbm1lbnQgYm91bmRhcnkgKHdvcnN0IGNhc2Ugc2NlbmFyaW8gaXQnbGwg cnVuIDcNCj4gdGltZXMpLCBJIGRvbid0IHRoaW5rIHdlIGdhaW4gbXVjaCBoZXJlLCBldmVuIGZv ciBhcmNocyB0aGF0IGhhdmUNCj4gZWZmaWNpZW50IHVuYWxpZ25lZCBhY2Nlc3MuDQoNCldpdGgg Q09ORklHX0hBVkVfRUZGSUNJRU5UX1VOQUxJR05FRF9BQ0NFU1MgaXQgcHJvYmFibHkgaXNuJ3Qg d29ydGgNCmV2ZW4gY2hlY2tpbmcgdGhlIGFsaWdubWVudC4NCldoaWxlIGFsaWduaW5nIHRoZSBj b3B5IHdpbGwgYmUgcXVpY2tlciBmb3IgYW4gdW5hbGlnbmVkIGJ1ZmZlciB0aGV5DQphbG1vc3Qg Y2VydGFpbmx5IGRvbid0IGhhcHBlbiBvZnRlbiBlbm91Z2ggdG8gd29ycnkgYWJvdXQuDQpJbiBh bnkgY2FzZSB5b3UnZCB3YW50IHRvIGRvIGEgbWlzYWxpZ25lZCB3b3JkIHdyaXRlIHRvIHRoZSBz dGFydA0Kb2YgdGhlIGJ1ZmZlciAtIG5vdCBzZXBhcmF0ZSBieXRlIHdyaXRlcy4NClByb3ZpZGVk IHRoZSBidWZmZXIgaXMgbG9uZyBlbm91Z2ggeW91IGNhbiBhbHNvIGRvIGEgbWlzYWxpZ25lZCB3 cml0ZQ0KdG8gdGhlIGVuZCBvZiB0aGUgYnVmZmVyIGJlZm9yZSBmaWxsaW5nIGZyb20gdGhlIHN0 YXJ0Lg0KDQpJIHN1c3BlY3QgeW91IG1heSBuZWVkIGVpdGhlciBiYXJyaWVyKCkgb3IgdXNlIGEg cHRyIHRvIHBhY2tlZA0KdG8gYXZvaWQgdGhlIHBlcnZlcnRlZCAndW5kZWZpbmVkIGJlaGF2aW91 cicgZnViYXIuJw0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBC cmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdp c3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0KX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2 QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1yaXNjdgo=