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 53C37C3F2D1 for ; Wed, 11 Mar 2020 02:56:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 311F4222C4 for ; Wed, 11 Mar 2020 02:56:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727992AbgCKC43 (ORCPT ); Tue, 10 Mar 2020 22:56:29 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:11624 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727648AbgCKC43 (ORCPT ); Tue, 10 Mar 2020 22:56:29 -0400 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 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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); -- 2.19.1