From patchwork Wed May 31 21:30:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13262686 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 080F1C87FDE for ; Wed, 31 May 2023 21:34:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231266AbjEaVeq (ORCPT ); Wed, 31 May 2023 17:34:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39258 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230476AbjEaVdw (ORCPT ); Wed, 31 May 2023 17:33:52 -0400 Received: from mail-yw1-x1135.google.com (mail-yw1-x1135.google.com [IPv6:2607:f8b0:4864:20::1135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54221E4F; Wed, 31 May 2023 14:32:43 -0700 (PDT) Received: by mail-yw1-x1135.google.com with SMTP id 00721157ae682-565a3cdba71so1034727b3.0; Wed, 31 May 2023 14:32:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685568727; x=1688160727; 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=lnBVr922X+M85c+6VJKDI+Caz3ny3LZ2fwcpIuiP1/4=; b=XZ3kJddTkoKufk0kwBdOVZQZoSVtcE5HG6sX6rRRHvCe7Om9x7xY0K4IiCL0nHsHxQ 9eGr6MZvVeUtc5fgyKg5P1qBSWAOsfbcmSPQlXFPghUVu6fp2sIDmm+5U3bq4g7lRHpB Zld4cy93/rMGN07+QSO9q6jJf8+GwNN3p+hTYG0BRIQZI6tNs0RI+r52u0EH3fUAXWUT KW3t0eM8fAoeH75fwVt/7iugc0BvPA69n2m/eo4szwTaUcjtnQ0rOZaZxJ3/gvL6spZ8 hnUdu2Pp/aCFMWHQdwhDEFfy8i7DytzgyU5VaM/fnvmpMyEanQ53VlCHmZFkS4f807YX H9xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685568727; x=1688160727; 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=lnBVr922X+M85c+6VJKDI+Caz3ny3LZ2fwcpIuiP1/4=; b=H4BbhdzJWEC0Z9ID+JqoWahjAMdkrYV7sA3YSuVTHcWADinuPgZ0zcWryaFM8TFvK8 Am0TZWtONsT0mEYlsorwn729LDLGUHjcVGAPhlNINGahhwGoE4rLiyqXlTYAev2Qeroz IsIX99TupxFsNresENOzHiTBZvgErQ5tSdydWmqXE1mQnygAubcvN2aTI74uaTECJ5np gaMNhXYem16qTrQb/9jt65NQ0E/dzdI1c9Mb5A4qbtUgug05MztpUWm8htzhxQiY6TIV k4M8D9D6LQ/pqajvW9ztX05GtYNBcwpKc3o6UxDcOWpl+sSvaadO8K+0BKa/Ilcnhly6 t4Jw== X-Gm-Message-State: AC+VfDzHXttlYK/EcebbzOx9kSm8a93r7kDGvf9+PoheAVK4cbLL4nI6 fPGNy5jdi3SCH+5slwkNd7Y= X-Google-Smtp-Source: ACHHUZ5mU9zEYCdDSqHlmf5fji+LZR6GnrVvINr+QLg2em3BFf1b9EHyVp5oT6zaLyXHcWvIl6C56g== X-Received: by 2002:a0d:e212:0:b0:55d:a4fb:864a with SMTP id l18-20020a0de212000000b0055da4fb864amr6942187ywe.14.1685568726728; Wed, 31 May 2023 14:32:06 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::46]) by smtp.googlemail.com with ESMTPSA id t63-20020a0dd142000000b0055aafcef659sm658905ywd.5.2023.05.31.14.32.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 May 2023 14:32:06 -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, "Vishal Moola (Oracle)" , Paul Walmsley , Palmer Dabbelt Subject: [PATCH v3 29/34] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Wed, 31 May 2023 14:30:27 -0700 Message-Id: <20230531213032.25338-30-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230531213032.25338-1-vishal.moola@gmail.com> References: <20230531213032.25338-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@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 --- 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 2f7a7c345a6a..2fe6ca1b1f95 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, 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, 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,