From patchwork Thu Jun 22 20:57:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289826 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1577C04FDF for ; Thu, 22 Jun 2023 21:02:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231682AbjFVVCy (ORCPT ); Thu, 22 Jun 2023 17:02:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231342AbjFVVBx (ORCPT ); Thu, 22 Jun 2023 17:01:53 -0400 Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23C7626AA; Thu, 22 Jun 2023 13:59:42 -0700 (PDT) Received: by mail-qk1-x729.google.com with SMTP id af79cd13be357-763ca800ca9so211123785a.2; Thu, 22 Jun 2023 13:59:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467534; x=1690059534; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0VT4pshsioiI3cvxCaccwxS3QnyiZywL9n+n1KwplTM=; b=TppJif0BHo6hnPlcQL9KC8WSGCLNYWnZ5TWCUGNi9Yse0euGomuzrLUl2hHWg+xOcN AtrgkmMfCUjy9KLBFfUuEG2s0Ihpe5FTyr5metIKFf6zbktuYMraC91YUKi/KWfbgyVG lvJTabP9ygpBud7nE/7yiG7FvQtoPgmdiRSK2sy5kuq4cEPaMRzkmi7ezbneoKdvpKLs RzOr7Yyw6OYIFnxYXzw+JpXxuwUJk+Gv++J63O8G6cjfEEYoESBKv3QgdI5Gny8Js2Dl u397T8c8ML9be3fyfcRz9z/KIcbHqeskiUObgkxyvqYvJ9bImtnagHyVKviaetoXJ3oC RmxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467534; x=1690059534; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0VT4pshsioiI3cvxCaccwxS3QnyiZywL9n+n1KwplTM=; b=Ii7KCRVBp11lC86JLhNyK5SAlC7Ooe7VpjOY43uGxhakRfWJPkNFEjux9+aG8oJZKU uBKoa+VlGlDwB/NRxJjjZL1kZ61ny2U94Kam2gCDXJqHsYYw4uFEZ8el79MAwZHn25Rl RqQyLUIPj0QhySDxXTjDkVwOfKINP+aETdwb9+qMEXvDX1mAhoVBUq/CiM7sNakQqia8 g2kFpRSgIbfcKXFArtBdIrmR5UIclwMzYVi5uFh/CcTR/G6j76eXIoEm52PRMexdmsv+ 8bqJpGtZe81p1R7gv0Tow42tHKvKvvAU5kGOMd/3H1CRENebdJmc9EHIlubZFN9IhVkX KlIw== X-Gm-Message-State: AC+VfDyAN1sx6Qz7FxkTc4Kk/Tb5wSbOYXvSkOdvFtVn4indYQPjqAMS 4Zm+V78wLscpeWQi2XDQNIc= X-Google-Smtp-Source: ACHHUZ4bdUBNX+PQFkV86pN6qHx4P8fCpAOyeLEg1MMh49m7gk0ETU/OT0t4ehwniJxuP5YNErTIxg== X-Received: by 2002:a05:620a:2455:b0:763:de2c:1a8a with SMTP id h21-20020a05620a245500b00763de2c1a8amr6902545qkn.57.1687467534343; Thu, 22 Jun 2023 13:58:54 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:54 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Paul Walmsley , Palmer Dabbelt , Mike Rapoport Subject: [PATCH v5 28/33] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Thu, 22 Jun 2023 13:57:40 -0700 Message-Id: <20230622205745.79707-29-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Palmer Dabbelt Acked-by: Mike Rapoport (IBM) --- arch/riscv/include/asm/pgalloc.h | 8 ++++---- arch/riscv/mm/init.c | 16 ++++++---------- 2 files changed, 10 insertions(+), 14 deletions(-) diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h index 59dc12b5b7e8..d169a4f41a2e 100644 --- a/arch/riscv/include/asm/pgalloc.h +++ b/arch/riscv/include/asm/pgalloc.h @@ -153,10 +153,10 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) #endif /* __PAGETABLE_PMD_FOLDED */ -#define __pte_free_tlb(tlb, pte, buf) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, buf) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte));\ } while (0) #endif /* CONFIG_MMU */ diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 4b95d8999120..efff9c752fcf 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -354,12 +354,10 @@ static inline phys_addr_t __init alloc_pte_fixmap(uintptr_t va) static phys_addr_t __init alloc_pte_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pte_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pte_ctor(ptdesc)); + return __pa((pte_t *)ptdesc_address(ptdesc)); } static void __init create_pte_mapping(pte_t *ptep, @@ -437,12 +435,10 @@ static phys_addr_t __init alloc_pmd_fixmap(uintptr_t va) static phys_addr_t __init alloc_pmd_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pmd_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pmd_ctor(ptdesc)); + return __pa((pmd_t *)ptdesc_address(ptdesc)); } static void __init create_pmd_mapping(pmd_t *pmdp,