From patchwork Tue Jun 21 06:55:23 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 70531 Delivered-To: patch@linaro.org Received: by 10.140.28.4 with SMTP id 4csp1863822qgy; Tue, 21 Jun 2016 00:00:14 -0700 (PDT) X-Received: by 10.66.157.131 with SMTP id wm3mr26038114pab.40.1466492414342; Tue, 21 Jun 2016 00:00:14 -0700 (PDT) Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org. [2001:1868:205::9]) by mx.google.com with ESMTPS id o18si5684414pag.170.2016.06.21.00.00.14 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Jun 2016 00:00:14 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) client-ip=2001:1868:205::9; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) smtp.mailfrom=linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bFFe3-0007Wa-CH; Tue, 21 Jun 2016 06:58:47 +0000 Received: from szxga03-in.huawei.com ([119.145.14.66]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bFFe0-0007PJ-Og for linux-arm-kernel@lists.infradead.org; Tue, 21 Jun 2016 06:58:45 +0000 Received: from 172.24.1.136 (EHLO szxeml428-hub.china.huawei.com) ([172.24.1.136]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CDQ78745; Tue, 21 Jun 2016 14:57:36 +0800 (CST) Received: from linux-ibm.site (10.175.102.37) by szxeml428-hub.china.huawei.com (10.82.67.183) with Microsoft SMTP Server id 14.3.235.1; Tue, 21 Jun 2016 14:56:31 +0800 From: Kefeng Wang To: Catalin Marinas , Will Deacon Subject: [PATCH] arm64: Add support ARCH_SUPPORTS_INT128 Date: Tue, 21 Jun 2016 14:55:23 +0800 Message-ID: <1466492123-3356-1-git-send-email-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 1.7.12.4 MIME-Version: 1.0 X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090206.5768E562.000A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 0a63edc7dc8689781c979fd6c36a7eb9 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160620_235845_038511_F544C16E X-CRM114-Status: UNSURE ( 8.67 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.6 (-----) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-5.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [119.145.14.66 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [119.145.14.66 listed in wl.mailspike.net] -0.0 SPF_PASS SPF: sender matches SPF record -1.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wangkefeng.wang@huawei.com, linux-arm-kernel@lists.infradead.org, guohanjun@huawei.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org The gcc support __SIZEOF_INT128__ and __int128 in arm64, thus, enable ARCH_SUPPORTS_INT128 to make mul_u64_u32_shr() a bit more efficient in scheduler. Signed-off-by: Kefeng Wang --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) -- 1.7.12.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 5a0a691..ab319eb 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -11,6 +11,7 @@ config ARM64 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_USE_CMPXCHG_LOCKREF select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_SUPPORTS_INT128 select ARCH_SUPPORTS_NUMA_BALANCING select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_COMPAT_IPC_PARSE_VERSION