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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 29702C55186 for ; Thu, 23 Apr 2020 13:59:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EBC612098B for ; Thu, 23 Apr 2020 13:59:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EBC612098B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2E0ED8E0003; Thu, 23 Apr 2020 09:59:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 244DB8E0006; Thu, 23 Apr 2020 09:59:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EEEE48E0003; Thu, 23 Apr 2020 09:59:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0245.hostedemail.com [216.40.44.245]) by kanga.kvack.org (Postfix) with ESMTP id BC4C18E0006 for ; Thu, 23 Apr 2020 09:59:43 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 82E69611D for ; Thu, 23 Apr 2020 13:59:43 +0000 (UTC) X-FDA: 76739277846.27.hair36_37a8b8a9c6e28 X-HE-Tag: hair36_37a8b8a9c6e28 X-Filterd-Recvd-Size: 3445 Received: from huawei.com (szxga07-in.huawei.com [45.249.212.35]) by imf28.hostedemail.com (Postfix) with ESMTP for ; Thu, 23 Apr 2020 13:59:42 +0000 (UTC) Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id D49BB62634215B3FC836; Thu, 23 Apr 2020 21:59:31 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.173.220.25) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Thu, 23 Apr 2020 21:59:24 +0800 From: Zhenyu Ye To: , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH v2 3/6] arm64: Add tlbi_user_level TLB invalidation helper Date: Thu, 23 Apr 2020 21:56:53 +0800 Message-ID: <20200423135656.2712-4-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 In-Reply-To: <20200423135656.2712-1-yezhenyu2@huawei.com> References: <20200423135656.2712-1-yezhenyu2@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add a level-hinted parameter to __tlbi_user, which only gets used if ARMv8.4-TTL gets detected. This patch set the default level value to 0. Signed-off-by: Zhenyu Ye --- arch/arm64/include/asm/tlbflush.h | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/t= lbflush.h index 5f9f189bc6d2..892f33235dc7 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -89,6 +89,12 @@ __tlbi(op, arg); \ } while (0) =20 +#define __tlbi_user_level(op, arg, level) do { \ + if (arm64_kernel_unmapped_at_el0()) \ + __tlbi_level(op, (arg | USER_ASID_FLAG), level); \ +} while (0) + + /* * TLB Invalidation * =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D @@ -190,8 +196,8 @@ static inline void flush_tlb_page_nosync(struct vm_ar= ea_struct *vma, unsigned long addr =3D __TLBI_VADDR(uaddr, ASID(vma->vm_mm)); =20 dsb(ishst); - __tlbi(vale1is, addr); - __tlbi_user(vale1is, addr); + __tlbi_level(vale1is, addr, 0); + __tlbi_user_level(vale1is, addr, 0); } =20 static inline void flush_tlb_page(struct vm_area_struct *vma, @@ -231,11 +237,11 @@ static inline void __flush_tlb_range(struct vm_area= _struct *vma, dsb(ishst); for (addr =3D start; addr < end; addr +=3D stride) { if (last_level) { - __tlbi(vale1is, addr); - __tlbi_user(vale1is, addr); + __tlbi_level(vale1is, addr, 0); + __tlbi_user_level(vale1is, addr, 0); } else { - __tlbi(vae1is, addr); - __tlbi_user(vae1is, addr); + __tlbi_level(vae1is, addr, 0); + __tlbi_user_level(vae1is, addr, 0); } } dsb(ish); --=20 2.19.1