Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp1142334ybg; Fri, 18 Oct 2019 12:43:27 -0700 (PDT) X-Google-Smtp-Source: APXvYqzlT1LhE1HEq8yIZlfc96PybxLDA8sd5XfsRWmFW0POkoGjSyZLEZNzxBmnkY4vivOaZof9 X-Received: by 2002:a50:ed01:: with SMTP id j1mr11611779eds.111.1571427807346; Fri, 18 Oct 2019 12:43:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1571427807; cv=none; d=google.com; s=arc-20160816; b=ErkwwiEXWpB5Fxygpdia3/6VpzknQsMtDchprlHMOUe9oPwHsB4BhkBeVfZ8UMbc7x g/l25Z/eAWbDX6dSwR2OQ1ndnrGXF1rB69+30NudmOdO81DHhep6c3AWAcDC8/JiC0Z2 cungSrOdMOGkxMV2qJtwQvOPUR0TezCjeH2SVxtZXNpFJN+rPoDIlI81EFIrsXQuBLc8 E35ymXdzI88yCFZfapZ03H7XITjnyBaFAhXKW0t/NkBmslO0Hl9sGh2tIpyxItl9YjRk /a+FqrP+SspxdgFWWeUQun5J0kt7A2+aDIOFQ4IeTM2qAofDGSVkqgOCeDdnbBRDRj2x nLuQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from; bh=lxtVXJZvJoRWm6wD/JFaTcKvjJNwp6M8VdUpqzHBlmY=; b=wkaxvJr9ZC72F4yhnCVuWz5s5oJZ9rKos5Hf19nteSAGtkpnlV125b1e5G8bAlLksN CDzFMy7sLiU1mwtGLSeVo9eb8r30AAcq3S5dxUlpmMbEfVrfW7izn0UKp3Y4yXBg9wb4 qH+8AgE1f6LlpmAkdaf7JbrjwPYjoFDdacP2a14SRrOI5/CErlcSawSDUesqE/JFqvlG kdnycVYX/jLCnj/XwfHRfJ8JCBkWCb25WFtuJ3i2kuogqNqGMPvbmpdCT7KubsMM0EWr 4l0I9XRtdZ9+iZ0Bf4ZeMFzu3zl9I1lQm0HceETlrkXwICDV/zOPPW24ZJqMHDeoT+hN bNzQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s19si4076828ejd.277.2019.10.18.12.43.04; Fri, 18 Oct 2019 12:43:27 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2395268AbfJQOZT (ORCPT + 99 others); Thu, 17 Oct 2019 10:25:19 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:38830 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727671AbfJQOZT (ORCPT ); Thu, 17 Oct 2019 10:25:19 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-35-wLuQ8dFnOzq0PfuTddZlqw-1; Thu, 17 Oct 2019 15:25:15 +0100 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 17 Oct 2019 15:25:14 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Thu, 17 Oct 2019 15:25:14 +0100 From: David Laight To: 'Yunfeng Ye' , Sudeep Holla CC: "catalin.marinas@arm.com" , "will@kernel.org" , "kstewart@linuxfoundation.org" , "gregkh@linuxfoundation.org" , "ard.biesheuvel@linaro.org" , "tglx@linutronix.de" , "wuyun.wu@huawei.com" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "hushiyuan@huawei.com" , "linfeilong@huawei.com" Subject: RE: [PATCH V2] arm64: psci: Reduce waiting time of cpu_psci_cpu_kill() Thread-Topic: [PATCH V2] arm64: psci: Reduce waiting time of cpu_psci_cpu_kill() Thread-Index: AQHVhO5+Vr2ETd8AWEKYYhhOaw9ZuKde3Cgg///1GwCAABHQgA== Date: Thu, 17 Oct 2019 14:25:14 +0000 Message-ID: <173d1913031b4ecb88f0c6e421cc5cf8@AcuMS.aculab.com> References: <18068756-0f39-6388-3290-cf03746e767d@huawei.com> <9df267db-e647-a81d-16bb-b8bfb06c2624@huawei.com> <20191016153221.GA8978@bogus> <0f550044-9ed2-5f72-1335-73417678ba45@huawei.com> <1cd555f0-4074-36b7-8426-6f01130051d2@huawei.com> In-Reply-To: <1cd555f0-4074-36b7-8426-6f01130051d2@huawei.com> Accept-Language: en-GB, en-US Content-Language: 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 X-MC-Unique: wLuQ8dFnOzq0PfuTddZlqw-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogWXVuZmVuZyBZZQ0KID4gU2VudDogMTcgT2N0b2JlciAyMDE5IDE1OjIwDQo+IE9uIDIw MTkvMTAvMTcgMjI6MDAsIERhdmlkIExhaWdodCB3cm90ZToNCj4gPiBGcm9tOiBZdW5mZW5nIFll DQo+ID4+IFNlbnQ6IDE3IE9jdG9iZXIgMjAxOSAxNDoyNg0KPiA+IC4uLg0KPiA+Pj4+IC0JZm9y IChpID0gMDsgaSA8IDEwOyBpKyspIHsNCj4gPj4+PiArCWkgPSAwOw0KPiA+Pj4+ICsJdGltZW91 dCA9IGppZmZpZXMgKyBtc2Vjc190b19qaWZmaWVzKDEwMCk7DQo+ID4+Pj4gKwlkbyB7DQo+ID4+ Pj4gIAkJZXJyID0gcHNjaV9vcHMuYWZmaW5pdHlfaW5mbyhjcHVfbG9naWNhbF9tYXAoY3B1KSwg MCk7DQo+ID4+Pj4gIAkJaWYgKGVyciA9PSBQU0NJXzBfMl9BRkZJTklUWV9MRVZFTF9PRkYpIHsN Cj4gPj4+PiAgCQkJcHJfaW5mbygiQ1BVJWQga2lsbGVkLlxuIiwgY3B1KTsNCj4gPj4+PiAgCQkJ cmV0dXJuIDA7DQo+ID4+Pj4gIAkJfQ0KPiA+Pj4+DQo+ID4+Pj4gLQkJbXNsZWVwKDEwKTsNCj4g Pj4+PiAtCQlwcl9pbmZvKCJSZXRyeWluZyBhZ2FpbiB0byBjaGVjayBmb3IgQ1BVIGtpbGxcbiIp Ow0KPiA+Pj4NCj4gPj4+IFlvdSBkcm9wcGVkIHRoaXMgbWVzc2FnZSwgYW55IHBhcnRpY3VsYXIg cmVhc29uID8NCj4gPj4+DQo+ID4+IFdoZW4gcmVkdWNlIHRoZSB0aW1lIGludGVydmFsIHRvIDFt cywgdGhlIHByaW50IG1lc3NhZ2UgbWF5YmUgaW5jcmVhc2UgMTAgdGltZXMuDQo+ID4+IG9uIHRo ZSBvdGhlciBoYW5kLCBjcHVfcHNjaV9jcHVfa2lsbCgpIHdpbGwgcHJpbnQgbWVzc2FnZSBvbiBz dWNjZXNzIG9yIGZhaWx1cmUsIHdoaWNoDQo+ID4+IHRoaXMgcmV0cnkgbG9nIGlzIG5vdCB2ZXJ5 IG5lY2Vzc2FyeS4gb2YgY291cmNlLCBJIHRoaW5rIHVzZSBwcl9pbmZvX29uY2UoKSBpbnN0ZWFk IG9mDQo+ID4+IHByX2luZm8oKSBpcyBiZXR0ZXIuDQo+ID4NCj4gPiBNYXliZSB5b3Ugc2hvdWxk IHByaW50IGluIG9uIChzYXkpIHRoZSAxMHRoIHRpbWUgYXJvdW5kIHRoZSBsb29wLg0KPiA+DQo+ IENhbiBpdCBsaWtlIHRoaXM6DQo+ICAgcHJfaW5mbygiQ1BVJWQga2lsbGVkIHdpdGggJWQgbG9v cHMuXG4iLCBjcHUsIGxvb3BzKTsNCj4gDQo+IElmIHB1dCB0aGUgbnVtYmVyIG9mIHdhaXRpbmcg dGltZXMgaW4gdGhlIHN1Y2Nlc3NmdWwgcHJpbnRpbmcgbWVzc2FnZSwgaXQgaXMNCj4gbm90IG5l Y2Vzc2FyeSB0byBwcmludCB0aGUgIlJldHJ5aW5nIC4uLiIgbWVzc2FnZS4NCg0KVGhhdCBkZXBl bmRzIG9uIHdoZXRoZXIgeW91IHdhbnQgdG8ga25vdyBob3cgbG9uZyBpdCB0b29rIG9yIHdoeSB0 aGUgc3lzdGVtDQppcyAnc3R1Y2snLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNz IExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAx UFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K