From patchwork Tue Jul 25 04:20:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13325803 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 32A5CC07E8A for ; Tue, 25 Jul 2023 04:25:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229877AbjGYEZw (ORCPT ); Tue, 25 Jul 2023 00:25:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230314AbjGYEYd (ORCPT ); Tue, 25 Jul 2023 00:24:33 -0400 Received: from mail-yb1-xb35.google.com (mail-yb1-xb35.google.com [IPv6:2607:f8b0:4864:20::b35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16ECD359C; Mon, 24 Jul 2023 21:22:03 -0700 (PDT) Received: by mail-yb1-xb35.google.com with SMTP id 3f1490d57ef6-d05a63946e0so4083804276.1; Mon, 24 Jul 2023 21:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690258922; x=1690863722; 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=3wtNkjiFE1rjq7ZRDFNmpMqdu/3EA/QyC8BNR6xlaRk=; b=iu7T9ShRTfGWqcA5uJNn48P7ITBijMcZXksGMFFsSIJDj0VmHTYECkWvPEWNMN60a1 IUYR/sDhh53Vy6dzUT6UahYzj05kYwH8neXcRQGMrWnafyF9Nggmi7HojAqo4PR9lKrk 02FdxS1l6wceDUexmcvfeLaN7cB/yf3NJTMHz8qA/qhQubNB4zuidHLrnfC+CD9FthdV DmB6BJ+22VwMurCnw4NmkeKklt87ZDgX5spGKsnDe9xsWqCmiOPReZ8vAaZPSBJPyLEZ EQXlbCfDgq90/zCmmXSE8cDOoCHltzy9M5tcZZJw0IWtubbSaQTI0PoE70blt5u8J64C txJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690258922; x=1690863722; 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=3wtNkjiFE1rjq7ZRDFNmpMqdu/3EA/QyC8BNR6xlaRk=; b=YozgQUGZZElLSt106hDB01NbAjxrhTQcBkTtc94SSMPoLxn5VHOaR9cDLoKtJb1ywB r8RoIb5TcixnlL128FGjDU7Gsmd7HLj5NvTusd9NPmOMwjJQInKB4igO6LEm1rz4n+Wx YrVVRToV89eeHEqC+eUL1WYcNF0FWUGnfyCQQJIAGseW/RX3AKZRd0bUzNBl5a/bKmkk 9UKN2l7AQcvaWKuscNBhwzeOsg2eZ3mdar30WejOImTYAzcXx4Fm2xrg/A38vTYW/4vG CN1oNWIOCR93kxmkLQaq+qw+L99nyxBmQjxM3kp4ScGr4t1S3z9EZY03AeKHWNFd/OcQ 7hVQ== X-Gm-Message-State: ABy/qLas3bjJRsPnugqRXbC8QY69bY14yrQ6XfyXVbp26+HUTy9plKUw GqsgOxCo2vvolcK7MYuYFG8= X-Google-Smtp-Source: APBJJlGfBdwhSlxwyOaXtB0+Cx5VSBUjcB1Wb8y8NRWIESkjts+Gr4L0lqHFPdNq/1caH3RyI0GElw== X-Received: by 2002:a05:6902:cb:b0:bc9:92c9:7fd1 with SMTP id i11-20020a05690200cb00b00bc992c97fd1mr8566515ybs.3.1690258922187; Mon, 24 Jul 2023 21:22:02 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id h9-20020a25b189000000b00d0db687ef48sm1175540ybj.61.2023.07.24.21.22.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jul 2023 21:22:01 -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 mm-unstable v7 26/31] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Mon, 24 Jul 2023 21:20:46 -0700 Message-Id: <20230725042051.36691-27-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230725042051.36691-1-vishal.moola@gmail.com> References: <20230725042051.36691-1-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 9ce504737d18..430a3d05a841 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -353,12 +353,10 @@ 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, @@ -436,12 +434,10 @@ 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,