From patchwork Wed Mar 11 02:53:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhenyu Ye X-Patchwork-Id: 11430597 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 18B101874 for ; Wed, 11 Mar 2020 02:56:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E3E682467D for ; Wed, 11 Mar 2020 02:56:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3E682467D 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 1256E6B0007; Tue, 10 Mar 2020 22:56:31 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 0AE516B0008; Tue, 10 Mar 2020 22:56:30 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E42A66B000A; Tue, 10 Mar 2020 22:56:30 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0249.hostedemail.com [216.40.44.249]) by kanga.kvack.org (Postfix) with ESMTP id C7A616B0007 for ; Tue, 10 Mar 2020 22:56:30 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 8ACC59429 for ; Wed, 11 Mar 2020 02:56:30 +0000 (UTC) X-FDA: 76581568140.05.lake43_38b559e5b3550 X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,yezhenyu2@huawei.com,,RULES_HIT:30054,0,RBL:45.249.212.190:@huawei.com:.lbl8.mailshell.net-62.18.2.100 64.95.201.95,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:26,LUA_SUMMARY:none X-HE-Tag: lake43_38b559e5b3550 X-Filterd-Recvd-Size: 3608 Received: from huawei.com (szxga04-in.huawei.com [45.249.212.190]) by imf43.hostedemail.com (Postfix) with ESMTP for ; Wed, 11 Mar 2020 02:56:29 +0000 (UTC) Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id DE05BFE593B10E7FCD02; Wed, 11 Mar 2020 10:56:23 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.173.220.25) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Wed, 11 Mar 2020 10:56:17 +0800 From: Zhenyu Ye To: , , , , , , , CC: , , , , , , , Subject: [RFC PATCH v1 3/3] arm64: tlb: add support for TTL in some functions Date: Wed, 11 Mar 2020 10:53:09 +0800 Message-ID: <20200311025309.1743-4-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 In-Reply-To: <20200311025309.1743-1-yezhenyu2@huawei.com> References: <20200311025309.1743-1-yezhenyu2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected 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 support for TTL in some ARM64-Architecture functions. The relevant functions are: __pte_free_tlb __pmd_free_tlb __pud_free_tlb clear_flush get_clear_flush Signed-off-by: Zhenyu Ye --- arch/arm64/include/asm/tlb.h | 3 +++ arch/arm64/mm/hugetlbpage.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h index b76df828e6b7..36428ce53185 100644 --- a/arch/arm64/include/asm/tlb.h +++ b/arch/arm64/include/asm/tlb.h @@ -44,6 +44,7 @@ static inline void tlb_flush(struct mmu_gather *tlb) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) { + tlb->mm->context.flags = TLBI_LEVEL_3; pgtable_pte_page_dtor(pte); tlb_remove_table(tlb, pte); } @@ -53,6 +54,7 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) { struct page *page = virt_to_page(pmdp); + tlb->mm->context.flags = TLBI_LEVEL_2; pgtable_pmd_page_dtor(page); tlb_remove_table(tlb, page); @@ -63,6 +65,7 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp, unsigned long addr) { + tlb->mm->context.flags = TLBI_LEVEL_1; tlb_remove_table(tlb, virt_to_page(pudp)); } #endif diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index bbeb6a5a6ba6..4c2f1b802cb8 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -141,6 +141,7 @@ static pte_t get_clear_flush(struct mm_struct *mm, if (valid) { struct vm_area_struct vma = TLB_FLUSH_VMA(mm, 0); + mm->context.flags = TLBI_LEVEL_3; flush_tlb_range(&vma, saddr, addr); } return orig_pte; @@ -163,6 +164,7 @@ static void clear_flush(struct mm_struct *mm, { struct vm_area_struct vma = TLB_FLUSH_VMA(mm, 0); unsigned long i, saddr = addr; + mm->context.flags = TLBI_LEVEL_3; for (i = 0; i < ncontig; i++, addr += pgsize, ptep++) pte_clear(mm, addr, ptep);