From patchwork Wed May 31 21:30:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13262712 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 B830DC7EE23 for ; Wed, 31 May 2023 21:33:06 +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=xBDn3i1O9CMK9uGs4gf889HTYYq7lTxYMEPtxxykywA=; b=PCYZUve8vDU0pj 9zKNUr09TRypyTiYw9n4kfMS1etYw0TU/zmhanKODZD+eKjZm1p7L4SNll7oB41GtR5CAApL1U5BZ 5Y0u+iRxcC2VxBcCVTxp/MHdsj2TxFt2BMre8KC+MIklfhV8Wl9gppU2GBLVl8ox2NsdDketwdrUo q03Z4oastamXq/gyY5GLWricML8W/sqw40li/Q8Mgy4LYjxUvrWjFE0ihPxdXSlhqhk8ayviD/N0b JdR43LzxtCEVZ+um0q6XfvmR2XgTy98EWnEiN99NgBqPI1UF33cHvyTMuxNZMYKvDLUQCxARfVofK AGahQxbmb6DOzLqElK6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q4TRF-001AwW-2x; Wed, 31 May 2023 21:33:01 +0000 Received: from mail-yw1-f169.google.com ([209.85.128.169]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q4TQG-001APo-1y; Wed, 31 May 2023 21:32:06 +0000 Received: by mail-yw1-f169.google.com with SMTP id 00721157ae682-55db055b412so22309827b3.0; Wed, 31 May 2023 14:31:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685568718; x=1688160718; 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=iEZT4iY8EEl9pa7al7MLo6hk70lgBLqPfTLtEBGVb+s=; b=PGO1theuZfi6ZrSPVpMFRQAeOHsn5pMjC8xgKa8aRHHFy/i2vTnGPbNlxfLx+6Euaq Hf4qVvFQ61uRrkfUN+YNchpjFmVCPYUXGh7NblhXFTi/GX4kJQBqzqLIMTqMj4VWjiVr t8NWR43kuHnjQ8iMMng7kHUvIdpNqX/tRzg++sr2gZfQOVzgSjuKT3bzIA3uSG7kWgDQ 17UYBKLxvl6bX7QLV22k75B/kUNvf5SVMTA3n26j13v0+L9xXBnD6yck43hrFvtcREzQ KMCTc+ZOGPqah06KW6AsjVfXFVLRcSZafJ7+MXnceNvSPC9LkpMpq/Z7sCtXDDCHjgXH Kgmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685568718; x=1688160718; 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=iEZT4iY8EEl9pa7al7MLo6hk70lgBLqPfTLtEBGVb+s=; b=AMZJHNXXq+Nnc/aVgLndRT0LD1p4I0HEfj9rRBhCbblkbHvgretdGFzW2Our8jlodo y8LycMZynQ+/z9BdGJQ6nESdvtR3POVTkEFM0+6ODtP5COYdJUcc0UP6K0uHAEe13Bpz ESn6yj62gFoNZppTg+aVgucSC/qFaK8cmZYAYator8Su6i1h7cvCNrxmYpYdnaDaoEvN KmMh6jiGCc8IqpactI02IsUEBkF76xmCqqcnRuHAxzKFee6qEVL5z0PGC+S6jPtczmsc tFEWnrIKKzmQi8SlqP3O6mpdqYf2Wfke+cs25ff6qhKFMjQa3KmfswtieSqrejsC3wzv kQzA== X-Gm-Message-State: AC+VfDx3W0abHUIsYtxqUDX8gWqyMbEo8N9ZiW+2D2U7lrSMwRUvD625 KHLMBFPEO7j+QI1uJJq0GWA= X-Google-Smtp-Source: ACHHUZ4Otln+kVOEgUySV1ArKpIYvBeruzYUd+lmycqZnK7GGCWSTwkmzaWpGSc76/XUk7nK9Exgbg== X-Received: by 2002:a81:4f05:0:b0:561:987e:27a with SMTP id d5-20020a814f05000000b00561987e027amr7848466ywb.10.1685568718603; Wed, 31 May 2023 14:31:58 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::46]) by smtp.googlemail.com with ESMTPSA id t63-20020a0dd142000000b0055aafcef659sm658905ywd.5.2023.05.31.14.31.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 May 2023 14:31:58 -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)" , Geert Uytterhoeven Subject: [PATCH v3 25/34] m68k: Convert various functions to use ptdescs Date: Wed, 31 May 2023 14:30:23 -0700 Message-Id: <20230531213032.25338-26-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230531_143200_648679_06191CF8 X-CRM114-Status: GOOD ( 16.35 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=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. Signed-off-by: Vishal Moola (Oracle) --- arch/m68k/include/asm/mcf_pgalloc.h | 41 ++++++++++++++-------------- arch/m68k/include/asm/sun3_pgalloc.h | 8 +++--- arch/m68k/mm/motorola.c | 4 +-- 3 files changed, 27 insertions(+), 26 deletions(-) diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 5c2c0a864524..9eb4ef9e6d77 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -7,20 +7,19 @@ extern 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) { - unsigned long page = __get_free_page(GFP_DMA); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); - if (!page) + if (!ptdesc) return NULL; - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); + return (pte_t *) (ptdesc_address(ptdesc)); } extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) @@ -35,36 +34,36 @@ 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, 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); + pagetable_clear(pte); 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(ptdesc); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -75,16 +74,18 @@ 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, 0); - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); - if (!new_pgd) + if (!ptdesc) return NULL; + new_pgd = (pgd_t *) 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 c75984e2d86b..594575a0780c 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) {