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=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 E9F22ECE596 for ; Tue, 8 Oct 2019 15:32:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BBFCF20659 for ; Tue, 8 Oct 2019 15:32:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qz1AHND2" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BBFCF20659 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sHVySSc/tK10EDO8ZagVhiDUVkYn+FJsvxfWu5BP0SU=; b=qz1AHND2YjHK+QZ4mMOa3/pgg 2l/QUcdL2Riiw8KkzhwON1JGdiaHSSR0BeS1kUEj1qtU+X7K4Op97ycrsvCleWLsokpymqRK15KiL t3L1d9XZk387EKHG5Xgf3hXW4H+vOjpiyU4mvisVTINBvaOEX3Zq9v33OB4RTcFIY7EgEUvN/T+zN AFq31iIca7IDOpGedcK/2aFDuZKWFrTWZdsyiqiSXsX6tkNx85wPlzdZD0Gy0PcpflklMhvO93oH8 4KemF+bnWkFX89XsXj0bFi4d839FGJWuS/SMLcED48M8a4+pVgPiUa/OxOLC83648lJtZ3Q6QTrLd VZM1/oz6w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHrT8-0003MA-BN; Tue, 08 Oct 2019 15:32:10 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHrT4-0003LL-NE for linux-arm-kernel@lists.infradead.org; Tue, 08 Oct 2019 15:32:09 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8BC121570; Tue, 8 Oct 2019 08:32:04 -0700 (PDT) Received: from dawn-kernel.cambridge.arm.com (unknown [10.1.197.116]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A0E883F68E; Tue, 8 Oct 2019 08:32:02 -0700 (PDT) Subject: Re: [PATCH v10 1/3] arm64: cpufeature: introduce helper cpu_has_hw_af() To: "Justin He (Arm Technology China)" , Marc Zyngier , Will Deacon References: <20190930015740.84362-1-justin.he@arm.com> <20190930015740.84362-2-justin.he@arm.com> <20191001125446.gknoofnm7az4wqf5@willie-the-truck> <20191001141848.762296bd@why> From: Suzuki K Poulose Message-ID: Date: Tue, 8 Oct 2019 16:32:01 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191008_083206_840334_46B5E37C X-CRM114-Status: GOOD ( 17.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , "linux-mm@kvack.org" , Catalin Marinas , "linux-kernel@vger.kernel.org" , Matthew Wilcox , "Kaly Xin \(Arm Technology China\)" , James Morse , "Kirill A. Shutemov" , Punit Agrawal , "hejianet@gmail.com" , Thomas Gleixner , Andrew Morton , "linux-arm-kernel@lists.infradead.org" Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gbk"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiAwOC8xMC8yMDE5IDAyOjEyLCBKdXN0aW4gSGUgKEFybSBUZWNobm9sb2d5IENoaW5hKSB3 cm90ZToKPiBIaSBXaWxsIGFuZCBNYXJjCj4gU29ycnkgZm9yIHRoZSBsYXRlIHJlc3BvbnNlLCBq dXN0IGNhbWUgYmFjayBmcm9tIGEgdmFjYXRpb24uCj4gCj4+IC0tLS0tT3JpZ2luYWwgTWVzc2Fn ZS0tLS0tCj4+IEZyb206IE1hcmMgWnluZ2llciA8bWF6QGtlcm5lbC5vcmc+Cj4+IFNlbnQ6IDIw MTnE6jEw1MIxyNUgMjE6MTkKPj4gVG86IFdpbGwgRGVhY29uIDx3aWxsQGtlcm5lbC5vcmc+Cj4+ IENjOiBKdXN0aW4gSGUgKEFybSBUZWNobm9sb2d5IENoaW5hKSA8SnVzdGluLkhlQGFybS5jb20+ OyBDYXRhbGluCj4+IE1hcmluYXMgPENhdGFsaW4uTWFyaW5hc0Bhcm0uY29tPjsgTWFyayBSdXRs YW5kCj4+IDxNYXJrLlJ1dGxhbmRAYXJtLmNvbT47IEphbWVzIE1vcnNlIDxKYW1lcy5Nb3JzZUBh cm0uY29tPjsKPj4gTWF0dGhldyBXaWxjb3ggPHdpbGx5QGluZnJhZGVhZC5vcmc+OyBLaXJpbGwg QS4gU2h1dGVtb3YKPj4gPGtpcmlsbC5zaHV0ZW1vdkBsaW51eC5pbnRlbC5jb20+OyBsaW51eC1h cm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmc7Cj4+IGxpbnV4LWtlcm5lbEB2Z2VyLmtlcm5l bC5vcmc7IGxpbnV4LW1tQGt2YWNrLm9yZzsgUHVuaXQgQWdyYXdhbAo+PiA8cHVuaXRhZ3Jhd2Fs QGdtYWlsLmNvbT47IFRob21hcyBHbGVpeG5lciA8dGdseEBsaW51dHJvbml4LmRlPjsKPj4gQW5k cmV3IE1vcnRvbiA8YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz47IGhlamlhbmV0QGdtYWlsLmNv bTsgS2FseQo+PiBYaW4gKEFybSBUZWNobm9sb2d5IENoaW5hKSA8S2FseS5YaW5AYXJtLmNvbT4K Pj4gU3ViamVjdDogUmU6IFtQQVRDSCB2MTAgMS8zXSBhcm02NDogY3B1ZmVhdHVyZTogaW50cm9k dWNlIGhlbHBlcgo+PiBjcHVfaGFzX2h3X2FmKCkKPj4KPj4gT24gVHVlLCAxIE9jdCAyMDE5IDEz OjU0OjQ3ICswMTAwCj4+IFdpbGwgRGVhY29uIDx3aWxsQGtlcm5lbC5vcmc+IHdyb3RlOgo+Pgo+ Pj4gT24gTW9uLCBTZXAgMzAsIDIwMTkgYXQgMDk6NTc6MzhBTSArMDgwMCwgSmlhIEhlIHdyb3Rl Ogo+Pj4+IFdlIHVuY29uZGl0aW9uYWxseSBzZXQgdGhlIEhXX0FGREJNIGNhcGFiaWxpdHkgYW5k IG9ubHkgZW5hYmxlIGl0IG9uCj4+Pj4gQ1BVcyB3aGljaCByZWFsbHkgaGF2ZSB0aGUgZmVhdHVy ZS4gQnV0IHNvbWV0aW1lcyB3ZSBuZWVkIHRvIGtub3cKPj4+PiB3aGV0aGVyIHRoaXMgY3B1IGhh cyB0aGUgY2FwYWJpbGl0eSBvZiBIVyBBRi4gU28gZGVjb3VwbGUgQUYgZnJvbQo+Pj4+IERCTSBi eSBuZXcgaGVscGVyIGNwdV9oYXNfaHdfYWYoKS4KPj4+Pgo+Pj4+IFNpZ25lZC1vZmYtYnk6IEpp YSBIZSA8anVzdGluLmhlQGFybS5jb20+Cj4+Pj4gU3VnZ2VzdGVkLWJ5OiBTdXp1a2kgUG91bG9z ZSA8U3V6dWtpLlBvdWxvc2VAYXJtLmNvbT4KPj4+PiBSZXZpZXdlZC1ieTogQ2F0YWxpbiBNYXJp bmFzIDxjYXRhbGluLm1hcmluYXNAYXJtLmNvbT4KPj4+PiAtLS0KPj4+PiAgIGFyY2gvYXJtNjQv aW5jbHVkZS9hc20vY3B1ZmVhdHVyZS5oIHwgMTAgKysrKysrKysrKwo+Pj4+ICAgMSBmaWxlIGNo YW5nZWQsIDEwIGluc2VydGlvbnMoKykKPj4+Pgo+Pj4+IGRpZmYgLS1naXQgYS9hcmNoL2FybTY0 L2luY2x1ZGUvYXNtL2NwdWZlYXR1cmUuaAo+PiBiL2FyY2gvYXJtNjQvaW5jbHVkZS9hc20vY3B1 ZmVhdHVyZS5oCj4+Pj4gaW5kZXggOWNkZTVkMmU3NjhmLi45NDliYzdjODUwMzAgMTAwNjQ0Cj4+ Pj4gLS0tIGEvYXJjaC9hcm02NC9pbmNsdWRlL2FzbS9jcHVmZWF0dXJlLmgKPj4+PiArKysgYi9h cmNoL2FybTY0L2luY2x1ZGUvYXNtL2NwdWZlYXR1cmUuaAo+Pj4+IEBAIC02NTksNiArNjU5LDE2 IEBAIHN0YXRpYyBpbmxpbmUgdTMyCj4+IGlkX2FhNjRtbWZyMF9wYXJhbmdlX3RvX3BoeXNfc2hp ZnQoaW50IHBhcmFuZ2UpCj4+Pj4gICAgZGVmYXVsdDogcmV0dXJuIENPTkZJR19BUk02NF9QQV9C SVRTOwo+Pj4+ICAgIH0KPj4+PiAgIH0KPj4+PiArCj4+Pj4gKy8qIENoZWNrIHdoZXRoZXIgaGFy ZHdhcmUgdXBkYXRlIG9mIHRoZSBBY2Nlc3MgZmxhZyBpcyBzdXBwb3J0ZWQgKi8KPj4+PiArc3Rh dGljIGlubGluZSBib29sIGNwdV9oYXNfaHdfYWYodm9pZCkKPj4+PiArewo+Pj4+ICsgaWYgKElT X0VOQUJMRUQoQ09ORklHX0FSTTY0X0hXX0FGREJNKSkKPj4+PiArICAgICAgICAgcmV0dXJuIHJl YWRfY3B1aWQoSURfQUE2NE1NRlIxX0VMMSkgJiAweGY7Cj4+Pgo+Pj4gMHhmPyBJIHRoaW5rIHdl IHNob3VsZCBoYXZlIGEgbWFzayBpbiBzeXNyZWcuaCBmb3IgdGhpcyBjb25zdGFudC4KPj4KPj4g V2UgZG9uJ3QgaGF2ZSB0aGUgbWFzaywgYnV0IHdlIGNlcnRhaW5seSBoYXZlIHRoZSBzaGlmdC4K Pj4KPj4gR0VOTUFTSyhJRF9BQTY0TU1GUjFfSEFEQlNfU0hJRlQgKyAzLAo+PiBJRF9BQTY0TU1G UjFfSEFEQlNfU0hJRlQpIGlzIGEgYml0Cj4+IG9mIGEgbW91dGhmdWwgdGhvdWdoLiBJZGVhbGx5 LCB3ZSdkIGhhdmUgYSBoZWxwZXIgZm9yIHRoYXQuCj4+Cj4gT2ssIEkgd2lsbCBpbXBsZW1lbnQg dGhlIGhlbHBlciBpZiB0aGVyZSBpc24ndCBzbyBmYXIuCj4gQW5kIHRoZW4gcmVwbGFjZSB0aGUg MHhmIHdpdGggaXQuCgpPciBjb3VsZCB3ZSBzaW1wbCByZXVzZSBleGlzdGluZyBjcHVpZF9mZWF0 dXJlX2V4dHJhY3RfdW5zaWduZWRfZmllbGQoKSA/Cgp1NjQgbW1mcjEgPSByZWFkX2NwdWlkKElE X0FBNjRNTUZSMV9FTDEpOwoKcmV0dXJuIGNwdWlkX2ZlYXR1cmVfZXh0cmFjdF91bnNpZ25lZF9m aWVsZChtbWZyMSwgSURfQUE2NE1NRlIxX0hBREJTX1NISUZUKSA/CgpDaGVlcnMKU3V6dWtpCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0t a2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcK aHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2Vy bmVsCg==