From patchwork Mon Aug 7 23:05:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13345498 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A368AC04A94 for ; Mon, 7 Aug 2023 23:08:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3yR6wvOKHXejIfYXIA0nLTz2ihOWCCOcm9qJJBKh69s=; b=2iWwLAmBbz4xKs kSOdTbCNpXEu6zBJmUM1yGb8uWL82khrKE4LHe6hjik76Gd5hyULvBmb/fsY6aFd6QdxA+RfOkU0s cz11quNt6wMUx8oaCrYnr/pGg6+x15W1+d9xbbrme02IhXQ4R+fioXrwPFDaeC5SyOcX2sQAp63ZR 91GIn1NDGVFJa88WXjWQdGlAkcrz0y6gc1NMuZs0taqUWxFufwBU+utZOc5+FRX6xGIOksiNycPc6 SrxnWz1Dsg0jgBNdpJwd2gCC+7WZRoUynTlyksDJhRlywWxgdcKbmz7UY9Cl+pJvRvZAEwykdm6LN 1dZNGQgkbocdS0SqxlkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qT9Kn-0017Yi-09; Mon, 07 Aug 2023 23:08:21 +0000 Received: from mail-yw1-x1136.google.com ([2607:f8b0:4864:20::1136]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qT9Ib-00158V-28; Mon, 07 Aug 2023 23:06:07 +0000 Received: by mail-yw1-x1136.google.com with SMTP id 00721157ae682-5862a6ae535so52792017b3.0; Mon, 07 Aug 2023 16:06:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691449563; x=1692054363; 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=b5UN203jFDiNo/YHJ5VSjgxwvcpHMPrLplz2RQSMCvk=; b=OTPDdNMzu7YNnKXhv+Q3ZqqlENNm5aYdj6D71YWlelfDeuCfloDRpvW/2blg63fLEM wp2lqLun+gv7jM76tgF3SL5EUSik6EQoGHQg/la3vssrqrbUd6clAJJZm9oTnkSFnW3p rrak3TkX2TlgthUOthGhnmNqe2u92uklZfoOWmy63Mi41aONrji7aHLiDQehYWfjAdaZ soPZkqDTfcWv3Jopxt6sr0srYUxYWkTWEBaSK7GkVRhdyRSTtqcke1kGItccZqtqhkia YtUOs+TmHqOaN+5n3hq45fmviaiyb+cOIccc/DlZdoNJ1+R3sKq7dO2/Ljgq8Rru35Tt Yo/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691449563; x=1692054363; 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=b5UN203jFDiNo/YHJ5VSjgxwvcpHMPrLplz2RQSMCvk=; b=MzA0rVFRWg5oTRYTE4EAsyvd+FFpWImP3s2zm8PVCxEQEefM9HKS6tPe6X93gSgbcr KAbQ9QdrPvQx6DBIEgyTnYqSthS4NkwrnqBxS7BR5AfoIgPZHMCyInVKgez673AJdx6A VbErId9dIuDKKgWJC/F5G3bQ10eZOi/Aoy/xICd0RTUp73pR+Go04YJOfDP0lpTt8dOm Kd6DiHdmXE75OZLmD9s9i5PY9VUvj9GWwX48nVvCW4uUh+rKvG2heGrX4imXdX3i+MBS XuDpSiYzkgLYvlzRcr1Z48ZIawcls3qfvW6+h81uiwQDgIWXlMaNyh0wr41CQu43kzpa PuaA== X-Gm-Message-State: AOJu0YztMMAinRxOGyXIvC5J2dgTLkrM3egKbupbjKTsHSlJoVVVIjzz /0SuNJbrwA/eUVriYvmPaSw= X-Google-Smtp-Source: AGHT+IGso2idiavqhjdtI0le+b51Epzt0Ore5+PmjI6n65mRaKN/pRbN2Fu2wELJlR9Tq3E7Uha1dg== X-Received: by 2002:a25:be08:0:b0:d0e:2e5c:2f80 with SMTP id h8-20020a25be08000000b00d0e2e5c2f80mr8938705ybk.64.1691449563064; Mon, 07 Aug 2023 16:06:03 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id d190-20020a25cdc7000000b00d3596aca5bcsm2545203ybf.34.2023.08.07.16.06.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 16:06:02 -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)" , Mike Rapoport , Geert Uytterhoeven Subject: [PATCH mm-unstable v9 22/31] m68k: Convert various functions to use ptdescs Date: Mon, 7 Aug 2023 16:05:04 -0700 Message-Id: <20230807230513.102486-23-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230807230513.102486-1-vishal.moola@gmail.com> References: <20230807230513.102486-1-vishal.moola@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230807_160605_915515_B003624B X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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. Acked-by: Mike Rapoport (IBM) Acked-by: Geert Uytterhoeven Signed-off-by: Vishal Moola (Oracle) --- arch/m68k/include/asm/mcf_pgalloc.h | 47 ++++++++++++++-------------- arch/m68k/include/asm/sun3_pgalloc.h | 8 ++--- arch/m68k/mm/motorola.c | 4 +-- 3 files changed, 30 insertions(+), 29 deletions(-) diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 5c2c0a864524..302c5bf67179 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -5,22 +5,22 @@ #include #include -extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) +static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long) pte); + pagetable_free(virt_to_ptdesc(pte)); } extern const char bad_pmd_string[]; -extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) { - unsigned long page = __get_free_page(GFP_DMA); + struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_ZERO) & + ~__GFP_HIGHMEM, 0); - if (!page) + if (!ptdesc) return NULL; - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); + return ptdesc_address(ptdesc); } extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) @@ -35,36 +35,34 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_DMA, 0); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); pte_t *pte; - if (!page) + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pte = page_address(page); - clear_page(pte); - + pte = ptdesc_address(ptdesc); return pte; } static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -75,16 +73,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_page((unsigned long) pgd); + pagetable_free(virt_to_ptdesc(pgd)); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *new_pgd; + struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_NOWARN) & + ~__GFP_HIGHMEM, 0); - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); - if (!new_pgd) + if (!ptdesc) return NULL; + new_pgd = ptdesc_address(ptdesc); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 198036aff519..ff48573db2c0 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -17,10 +17,10 @@ extern const char bad_pmd_string[]; -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 8bca46e51e94..c1761d309fc6 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -161,7 +161,7 @@ void *get_pointer_table(int type) * m68k doesn't have SPLIT_PTE_PTLOCKS for not having * SMP. */ - pgtable_pte_page_ctor(virt_to_page(page)); + pagetable_pte_ctor(virt_to_ptdesc(page)); } mmu_page_ctor(page); @@ -201,7 +201,7 @@ int free_pointer_table(void *table, int type) list_del(dp); mmu_page_dtor((void *)page); if (type == TABLE_PTE) - pgtable_pte_page_dtor(virt_to_page((void *)page)); + pagetable_pte_dtor(virt_to_ptdesc((void *)page)); free_page (page); return 1; } else if (ptable_list[type].next != dp) {