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: 11430601 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 21B781874 for ; Wed, 11 Mar 2020 02:56:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id F34D521927 for ; Wed, 11 Mar 2020 02:56:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="smJ/JNag" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F34D521927 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; 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=MgvAKJo/cyxssDWl0P3wCAoS9//1y5EtZYuPCAEyQHs=; b=smJ/JNagOAdefg 1R/hAuWLovBRp8YQrivtkA81mSun/9tHzu39gEgD7L84Kv/Ol7dN5Ah9t2SmoL3Jwe/kwdcsGjdKJ 8u+IrfVYF5KYk3qfgQP0MxPev6/dduQTVBQyPxC24uFifHa/F7ex+PVg3S09eWDQ9zxftkqoOWm28 AScf4R+gry3GHPHz/Gk/pHrPxvKgMEoChIaFE8K4noADjSfqKoxT7gwOCWnVi/nBzQQ/ZB4uYAUMK 4+e+AydHc4WWrFkRqWRed5BG/VKFVCsREKBTcOyW/LHpIeJDRLnT1AF6/9ZaVgClZBWHsHEgIoRPk 7eHdkFB+Roal2zVLCHVg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jBrXx-0003Y7-Ph; Wed, 11 Mar 2020 02:56:37 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jBrXu-0003Vc-Ip for linux-arm-kernel@lists.infradead.org; Wed, 11 Mar 2020 02:56:36 +0000 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: , , , , , , , 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200310_195634_793911_BE591362 X-CRM114-Status: UNSURE ( 9.38 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.190 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, yezhenyu2@huawei.com, linux-kernel@vger.kernel.org, xiexiangyou@huawei.com, linux-mm@kvack.org, arm@kernel.org, prime.zeng@hisilicon.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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);