From patchwork Tue Jun 27 03:14:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13293886 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 D45D5C001E0 for ; Tue, 27 Jun 2023 03:20:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231213AbjF0DUY (ORCPT ); Mon, 26 Jun 2023 23:20:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231365AbjF0DT1 (ORCPT ); Mon, 26 Jun 2023 23:19:27 -0400 Received: from mail-yw1-x112b.google.com (mail-yw1-x112b.google.com [IPv6:2607:f8b0:4864:20::112b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7705E30C2; Mon, 26 Jun 2023 20:16:16 -0700 (PDT) Received: by mail-yw1-x112b.google.com with SMTP id 00721157ae682-57059626276so44705237b3.3; Mon, 26 Jun 2023 20:16:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687835767; x=1690427767; 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=BTT3Mzd5pMJTg1qQFpEMV1yFnXFEE6dhiGZIFIlGfqbhlgUNcX3lP+0Xoq0dD8MFSr RK3vHi5QnyAo7T8lNR0m2sSqGWtPBPRWNiWjHN3rFdDhGGO7T9MFTERmHBgNR4sgVMS+ JUT/NdTfBaBAKs5kycCS3l/TBhEAp+C90btW4rno0I/EAboZKF9q6wEak2gDddjsGCi1 q2GUAru2ftFNSTo28kLQL6bJa4wXILET/IeOTUMnQplkR5BiuM2QbQkizw1eBdbmDbmG 65E54NzNO8/RkUogmqdZk7khZ+p+IpCeUb+CDcGS40pgjK7sLmx4u40SPJ3RJUKs7fxl Kwyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687835767; x=1690427767; 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=jKFXd+x6asFZ9vsdOFk+tyLgmIiqYSohhmMKEn5OoHXZp8mMXgz4b28b0rkVSwbOWu 2zIr5LIlsQUwimjuOroVf8+0qzIfv/YC/0Gv7p8jXXxSKR2pwaS/X9jWomjVnHnWORUd o4aPA4Qu4pfDxx3YVzZA0ypKjzUiIQqRwa/ETtYO2Co4v9Ooxi2wX31xO8rvoEjQYDIC LCj/zCdmD9IvpySiEPuTEOF6mfr/+C6UCuPEQGD7AEXtjp5/vrmteRsicj3HVDHPkKJM G/jdRO+gHogY5+Ui3DRLtsnv1j+gabnshkMpth5z2FQo974W6olA7PfNXHy7lCt2ebLz d4Kw== X-Gm-Message-State: AC+VfDw1QCbAGmDH56uPZTj0kx4mPu+PrP5kb0xsYZvUEOYkcQvr1Sno zzodaJkpK4lReyt1tSXBbEM= X-Google-Smtp-Source: ACHHUZ4rZA4ZO6uIUbBCVKZtf01FpSGP007O6nK+owIo75GKh2wlbCSJx7/xiS4iS/AR11yVX11PjQ== X-Received: by 2002:a81:6d53:0:b0:570:6665:4646 with SMTP id i80-20020a816d53000000b0057066654646mr37647298ywc.1.1687835766960; Mon, 26 Jun 2023 20:16:06 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id s4-20020a0dd004000000b0057399b3bd26sm1614798ywd.33.2023.06.26.20.16.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jun 2023 20:16:06 -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, Hugh Dickins , "Vishal Moola (Oracle)" , Paul Walmsley , Palmer Dabbelt , Mike Rapoport Subject: [PATCH v6 28/33] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Mon, 26 Jun 2023 20:14:26 -0700 Message-Id: <20230627031431.29653-29-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230627031431.29653-1-vishal.moola@gmail.com> References: <20230627031431.29653-1-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,