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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 80FBCC47073 for ; Thu, 4 Jan 2024 03:57:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3IesfQD1zN5GFZFHV8aQIQmPv0n2fSHjW6vKEJvCfAA=; b=M2guFdOCUaCXwR Uy3oNlxS6UJ0Sr0zTc5sGimUri5zIA/20vwKlnoPaCvtExRix02P0go4YmwR7M13dQ6ZGSuLNdBZU HR0s4H+xRzVUjUXOpDZ0o7uGyu5o/tmnoQuw1rMI8PDQj4lOTexwaEd0focIwTzsCKM7Wm9o17HEb +TfhY0pVyJbvZTaAEkEbqKviGgMNd5QYzTDJ7cuIblGjtm3laHlbRAOJbjkUtIPxGX9vjKATZEjYQ qShzfpq7WjdN6hxgFIuXKyuA6dZmSnrSAYm6eYx9UE9Vx/cJLEIw5sQys27eY2TA1v+crCRz56cqW irTSrUZLfGwzol9W5eLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rLEqs-00CmtV-0J; Thu, 04 Jan 2024 03:57:02 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rLEqo-00Cmsq-13 for linux-riscv@lists.infradead.org; Thu, 04 Jan 2024 03:56:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1704340616; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YMN+pqeNMI7ZuFW+qE934BKBWaEBG3spDH3M6BLKSMk=; b=Ii4xHkKPc9ACJPxTFbgiocsvrRtqLvMBXbh0kb/ZmSHMQF1mTCnBVNSEHqLq5s8TfyZmOv J2RBm/lnqUwA0BxKfDfmbRbv/7XeSlGd3IVrQldowUI0dy1H3EK5iFFnpfSsTqmRLBW0WA +5OWqCTBCF9WFLF068j136GBlsf0Tfg= Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-617-kXp_qdrvMOqG63tWopti1g-1; Wed, 03 Jan 2024 22:56:54 -0500 X-MC-Unique: kXp_qdrvMOqG63tWopti1g-1 Received: by mail-oo1-f70.google.com with SMTP id 006d021491bc7-59436f69e8cso153443eaf.0 for ; Wed, 03 Jan 2024 19:56:54 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704340614; x=1704945414; h=content-transfer-encoding:content-disposition:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=YMN+pqeNMI7ZuFW+qE934BKBWaEBG3spDH3M6BLKSMk=; b=Vh1pB1j+HHhoBpJRbeuPvOoKrQsscIxsEQdzinjUesBfOJqVvEJWxDMqHhw9r789yG zcdV1DZgXRG4U+cdrlQUW6qI239804TmsfEg2BGPiRp6hPtx+0yui92uiJkmbI5PxKI9 36T4xW+huLxUjICBkumhhDU3cmVmmULyOsaQFqZVC5fRoLvcYHXsx77u/zqV9vZv90P/ enAidrTzn9cwo3PRXs8zm8qeopd5Fv/fc+rOs8uQ0FKjxrRX6uFjGw26b15iw2rTxCqK Mk916keZLEQM4kLr4xehWHnDqOAAZEHezM/84P+3ChBIw9O5elJ1tkpY2tqAvcdWBtGi YBpw== X-Gm-Message-State: AOJu0Yw0VcCJlEvx1bNxrJ6soii4DGTTa6LgV0J6aNmt5Qk2aWEshYG3 oU5iiixPRRklJ6rkvWgiNhKdm9peDWpZTNJSGlZx+UNU57AWZpd5lCXZ7n8yXhe/RaJK3AI6xUq 3zSqhH5Jcs0J+Q9UFyHy2znYu40gUh+O9KBmd X-Received: by 2002:a05:6358:e497:b0:175:524e:440d with SMTP id by23-20020a056358e49700b00175524e440dmr2948372rwb.57.1704340613946; Wed, 03 Jan 2024 19:56:53 -0800 (PST) X-Google-Smtp-Source: AGHT+IEvUY09MTn5GToRw03eTFd2Z42WB1/U704H6N/ybGn6z8OeOBAp6ZdewL30cqW+xtKO4DZEgw== X-Received: by 2002:a05:6358:e497:b0:175:524e:440d with SMTP id by23-20020a056358e49700b00175524e440dmr2948348rwb.57.1704340613566; Wed, 03 Jan 2024 19:56:53 -0800 (PST) Received: from localhost.localdomain ([2804:431:c7ec:911:6911:ca60:846:eb46]) by smtp.gmail.com with ESMTPSA id nb5-20020a17090b35c500b0028bbf4c0264sm2558789pjb.10.2024.01.03.19.56.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jan 2024 19:56:53 -0800 (PST) From: Leonardo Bras To: Guo Ren Subject: Re: [PATCH V2 3/3] riscv: xchg: Prefetch the destination word for sc.w Date: Thu, 4 Jan 2024 00:56:39 -0300 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: <20231231082955.16516-1-guoren@kernel.org> <20231231082955.16516-4-guoren@kernel.org> <20240102-81391283df04c430d76c0eb0@orel> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240103_195658_449618_C6AA4EC5 X-CRM114-Status: GOOD ( 37.55 ) 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: , Cc: wefu@redhat.com, keescook@chromium.org, peterz@infradead.org, unicorn_wang@outlook.com, atishp@atishpatra.org, chao.wei@sophgo.com, bjorn@rivosinc.com, linux-kernel@vger.kernel.org, xiaoguang.xing@sophgo.com, conor.dooley@microchip.com, Leonardo Bras , palmer@dabbelt.com, jszhang@kernel.org, paul.walmsley@sifive.com, Guo Ren , panqinglin2020@iscas.ac.cn, linux-riscv@lists.infradead.org, wuwei2016@iscas.ac.cn, Andrew Jones 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 T24gVGh1LCBKYW4gMDQsIDIwMjQgYXQgMDk6MjQ6NDBBTSArMDgwMCwgR3VvIFJlbiB3cm90ZToK PiBPbiBUaHUsIEphbiA0LCAyMDI0IGF0IDM6NDXigK9BTSBMZW9uYXJkbyBCcmFzIDxsZW9icmFz QHJlZGhhdC5jb20+IHdyb3RlOgo+ID4KPiA+IE9uIFdlZCwgSmFuIDAzLCAyMDI0IGF0IDAyOjE1 OjQ1UE0gKzA4MDAsIEd1byBSZW4gd3JvdGU6Cj4gPiA+IE9uIFR1ZSwgSmFuIDIsIDIwMjQgYXQg NzoxOeKAr1BNIEFuZHJldyBKb25lcyA8YWpvbmVzQHZlbnRhbmFtaWNyby5jb20+IHdyb3RlOgo+ ID4gPiA+Cj4gPiA+ID4gT24gU3VuLCBEZWMgMzEsIDIwMjMgYXQgMDM6Mjk6NTNBTSAtMDUwMCwg Z3VvcmVuQGtlcm5lbC5vcmcgd3JvdGU6Cj4gPiA+ID4gPiBGcm9tOiBHdW8gUmVuIDxndW9yZW5A bGludXguYWxpYmFiYS5jb20+Cj4gPiA+ID4gPgo+ID4gPiA+ID4gVGhlIGNvc3Qgb2YgY2hhbmdp bmcgYSBjYWNoZWxpbmUgZnJvbSBzaGFyZWQgdG8gZXhjbHVzaXZlIHN0YXRlIGNhbiBiZQo+ID4g PiA+ID4gc2lnbmlmaWNhbnQsIGVzcGVjaWFsbHkgd2hlbiB0aGlzIGlzIHRyaWdnZXJlZCBieSBh biBleGNsdXNpdmUgc3RvcmUsCj4gPiA+ID4gPiBzaW5jZSBpdCBtYXkgcmVzdWx0IGluIGhhdmlu ZyB0byByZXRyeSB0aGUgdHJhbnNhY3Rpb24uCj4gPiA+ID4gPgo+ID4gPiA+ID4gVGhpcyBwYXRj aCBtYWtlcyB1c2Ugb2YgcHJlZmV0Y2gudyB0byBwcmVmZXRjaCBjYWNoZWxpbmVzIGZvciB3cml0 ZQo+ID4gPiA+ID4gcHJpb3IgdG8gbHIvc2MgbG9vcHMgd2hlbiB1c2luZyB0aGUgeGNoZ19zbWFs bCBhdG9taWMgcm91dGluZS4KPiA+ID4gPiA+Cj4gPiA+ID4gPiBUaGlzIHBhdGNoIGlzIGluc3Bp cmVkIGJ5IGNvbW1pdDogMGVhMzY2ZjVlMWI2ICgiYXJtNjQ6IGF0b21pY3M6Cj4gPiA+ID4gPiBw cmVmZXRjaCB0aGUgZGVzdGluYXRpb24gd29yZCBmb3Igd3JpdGUgcHJpb3IgdG8gc3R4ciIpLgo+ ID4gPiA+ID4KPiA+ID4gPiA+IFNpZ25lZC1vZmYtYnk6IEd1byBSZW4gPGd1b3JlbkBsaW51eC5h bGliYWJhLmNvbT4KPiA+ID4gPiA+IFNpZ25lZC1vZmYtYnk6IEd1byBSZW4gPGd1b3JlbkBrZXJu ZWwub3JnPgo+ID4gPiA+ID4gLS0tCj4gPiA+ID4gPiAgYXJjaC9yaXNjdi9pbmNsdWRlL2FzbS9j bXB4Y2hnLmggfCA0ICsrKy0KPiA+ID4gPiA+ICAxIGZpbGUgY2hhbmdlZCwgMyBpbnNlcnRpb25z KCspLCAxIGRlbGV0aW9uKC0pCj4gPiA+ID4gPgo+ID4gPiA+ID4gZGlmZiAtLWdpdCBhL2FyY2gv cmlzY3YvaW5jbHVkZS9hc20vY21weGNoZy5oIGIvYXJjaC9yaXNjdi9pbmNsdWRlL2FzbS9jbXB4 Y2hnLmgKPiA+ID4gPiA+IGluZGV4IDI2Y2VhMjM5NWFhZS4uZDdiOWQ3OTUxZjA4IDEwMDY0NAo+ ID4gPiA+ID4gLS0tIGEvYXJjaC9yaXNjdi9pbmNsdWRlL2FzbS9jbXB4Y2hnLmgKPiA+ID4gPiA+ ICsrKyBiL2FyY2gvcmlzY3YvaW5jbHVkZS9hc20vY21weGNoZy5oCj4gPiA+ID4gPiBAQCAtMTAs NiArMTAsNyBAQAo+ID4gPiA+ID4KPiA+ID4gPiA+ICAjaW5jbHVkZSA8YXNtL2JhcnJpZXIuaD4K PiA+ID4gPiA+ICAjaW5jbHVkZSA8YXNtL2ZlbmNlLmg+Cj4gPiA+ID4gPiArI2luY2x1ZGUgPGFz bS9wcm9jZXNzb3IuaD4KPiA+ID4gPiA+Cj4gPiA+ID4gPiAgI2RlZmluZSBfX2FyY2hfeGNoZ19t YXNrZWQocHJlcGVuZCwgYXBwZW5kLCByLCBwLCBuKSAgICAgICAgICAgICAgICAgXAo+ID4gPiA+ Cj4gPiA+ID4gQXJlIHlvdSBzdXJlIHRoaXMgaXMgYmFzZWQgb24gdjYuNy1yYzc/IEJlY2F1c2Ug SSBkb24ndCBzZWUgdGhpcyBtYWNyby4KPiA+ID4gT2gsIGl0IGlzIGJhc2VkIG9uIExlb2JyYXMn IHBhdGNoZXMuIEkgd291bGQgcmVtb3ZlIGl0IGluIHRoZSBuZXh0IG9mIHZlcnNpb24uCj4gPgo+ ID4gSSB3b3VsZCBzYXkgdGhpcyBuZXh0IDopCj4gVGh4IGZvciB0aGUgZ3JhbW1hciBjb3JyZWN0 aW9uLgoKT2gsIEkgd2FzIG5vdCBpbnRlbmRpbmcgdG8gY29ycmVjdCBncmFtbWFyLgpJIGp1c3Qg bWVhbnQgdGhlIG5leHQgdGhpbmcgSSB3b3VsZCBtZW50aW9uIGlzIHRoYXQgaXQgd2FzIGJhc2Vk IG9uIHRvcCBvZiAKbXkgcGF0Y2hzZXQgaW5zdGVhZCBvZiB2Ni43LXJjNzoKCj4gCj4gPgo+ID4g Pgo+ID4gPiA+Cj4gPiA+ID4gPiAgKHsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgXAo+ID4gPiA+ID4gQEAgLTIzLDYgKzI0 LDcgQEAKPiA+ID4gPiA+ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBcCj4gPiA+ID4gPiAgICAgICBfX2FzbV9fIF9f dm9sYXRpbGVfXyAoICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgXAo+ ID4gPiA+ID4gICAgICAgICAgICAgIHByZXBlbmQgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgIFwKPiA+ID4gPiA+ICsgICAgICAgICAgICBQUkVGRVRDSFdf QVNNKCU1KSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBcCj4gPiA+ID4g PiAgICAgICAgICAgICAgIjA6ICAgICAgbHIudyAlMCwgJTJcbiIgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgXAo+ID4gPiA+ID4gICAgICAgICAgICAgICIgICAgICAgIGFuZCAgJTEs ICUwLCAlejRcbiIgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFwKPiA+ID4gPiA+ICAgICAg ICAgICAgICAiICAgICAgICBvciAgICUxLCAlMSwgJXozXG4iICAgICAgICAgICAgICAgICAgICAg ICAgICAgICBcCj4gPiA+ID4gPiBAQCAtMzAsNyArMzIsNyBAQAo+ID4gPiA+ID4gICAgICAgICAg ICAgICIgICAgICAgIGJuZXogJTEsIDBiXG4iICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgIFwKPiA+ID4gPiA+ICAgICAgICAgICAgICBhcHBlbmQgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBcCj4gPiA+ID4gPiAgICAgICAgICAgICAgOiAi PSZyIiAoX19yZXR4KSwgIj0mciIgKF9fcmMpLCAiK0EiICgqKF9fcHRyMzJiKSkgICAgICAgXAo+ ID4gPiA+ID4gLSAgICAgICAgICAgIDogInJKIiAoX19uZXd4KSwgInJKIiAofl9fbWFzaykgICAg ICAgICAgICAgICAgICAgICAgICAgIFwKPiA+ID4gPiA+ICsgICAgICAgICAgICA6ICJySiIgKF9f bmV3eCksICJySiIgKH5fX21hc2spLCAickoiIChfX3B0cjMyYikgICAgICAgICBcCj4gPiA+ID4K PiA+ID4gPiBJJ20gcHJldHR5IHN1cmUgd2UgZG9uJ3Qgd2FudCB0byBhbGxvdyB0aGUgSiBjb25z dHJhaW50IGZvciBfX3B0cjMyYi4KPiA+ID4gPgo+ID4gPiA+ID4gICAgICAgICAgICAgIDogIm1l bW9yeSIpOyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFwKPiA+ ID4gPiA+ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICBcCj4gPiA+ID4gPiAgICAgICByID0gKF9fdHlwZW9mX18oKihw KSkpKChfX3JldHggJiBfX21hc2spID4+IF9fcyk7ICAgICAgICAgICAgICAgXAo+ID4gPiA+ID4g LS0KPiA+ID4gPiA+IDIuNDAuMQo+ID4gPiA+ID4KPiA+ID4gPgo+ID4gPiA+IFRoYW5rcywKPiA+ ID4gPiBkcmV3Cj4gPiA+Cj4gPiA+Cj4gPiA+Cj4gPiA+IC0tCj4gPiA+IEJlc3QgUmVnYXJkcwo+ ID4gPiAgR3VvIFJlbgo+ID4gPgo+ID4KPiA+IE5pY2UgcGF0Y2ggOikKPiA+IEFueSByZWFzb24g aXQncyBub3QgbmVlZGVkIGluIF9fYXJjaF9jbXB4Y2hnX21hc2tlZCgpLCBhbmQgX19hcmNoX2Nt cHhjaGcoKSA/Cj4gQ0FTIGlzIGEgY29uZGl0aW9uYWwgQU1PLCB1bmxpa2UgeGNoZyAoU3RhbmQg QU1PKS4gQXJtNjQgaXMgd3JvbmcsIG9yCj4gdGhleSBoYXZlIGEgcHJvYmxlbSB3aXRoIHRoZSBo YXJkd2FyZS4KClNvcnJ5LCBJIHdhcyB1bmFibGUgdG8gZnVsbHkgdW5kZXJzdGFuZCB0aGUgcmVh c29uIGhlcmUuCgpZb3Ugc3VnZ2VzdCB0aGF0IHRoZSBQUkVGRVRDSC5XIHdhcyBpbnNlcnRlZCBv biB4Y2hnX21hc2tlZCBiZWNhdXNlIGl0IHdpbGwgCmFsd2F5cyBzd2l0Y2ggdGhlIHZhcmlhYmxl IChubyBjb21wYXJlLCBibGluZCBDQVMpLCBidXQgbm90IG9uIGNtcHhjaGcuCgpJcyB0aGlzIGJl Y2F1c2UgY21weGNoZyB3aWxsIGRlcGVuZCBvbiBhIGNvbXBhcmUsIGFuZCB0aHVzIGl0IGRvZXMg bm90IApnYXJhbnRlZSBhIHdyaXRlPyBzbyBpdCB3b3VsZCBiZSB1bndpc2UgdG8gYWx3YXlzIHBy ZWZldGNoIGNhY2hlbGluZSAKZXhjbHVzaXZlbmVzcyBmb3IgdGhpcyBjcHUsIHdoZXJlIHNoYXJl ZCBzdGF0ZSB3b3VsZCBiZSBlbm91Z2guCklzIHRoYXQgY29ycmVjdD8gCgpUaGFua3MhCkxlbwoK Cj4gCj4gPgo+ID4gVGhhbmtzIQo+ID4gTGVvCj4gPgo+IAo+IAo+IC0tIAo+IEJlc3QgUmVnYXJk cwo+ICBHdW8gUmVuCj4gCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJh ZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51 eC1yaXNjdgo=