From patchwork Mon Apr 17 20:50:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13214618 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 1BA6FC7EE20 for ; Mon, 17 Apr 2023 20:55:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230459AbjDQUy7 (ORCPT ); Mon, 17 Apr 2023 16:54:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231243AbjDQUxb (ORCPT ); Mon, 17 Apr 2023 16:53:31 -0400 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6295D7ED5; Mon, 17 Apr 2023 13:53:19 -0700 (PDT) Received: by mail-pl1-x62e.google.com with SMTP id q2so32217997pll.7; Mon, 17 Apr 2023 13:53:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681764798; x=1684356798; 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=nlmIG8UgshEYTOBASKXa1dMTltHF5q5LujwV+qMeaTE=; b=MO1PC1xt/KvuZ3BR0uFzYFvll2jFuloCAIP6GEEELaZGVsUuayg4+lNKAol0RlX2+3 Iz38d0dC9QwTB6d/mc2DYTZXN+iAw+HkmmeqA37ilN3ijvqPuJYcJPAfuZ5NSiq7Oy0y 5tk6CT5Flw0tO/XZTIWPNors/JAYwfVMvyqbu0GP1qyv9cYfy3iQHS4IKEIm4tGX0nuK r/0iigtw61JwQ8Pxh0uDlXeUn+URgKqdZ4DDg0uzUbspXwSfQOQ/MuFlx/Zb5Bn9cIh/ DsllyX0j/egvd/MrVX7PxBJ0K/+L/v/BhuCd1hvi1MmWpxA5K0b5kps6s+vigGrLYnHf Yhaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681764798; x=1684356798; 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=nlmIG8UgshEYTOBASKXa1dMTltHF5q5LujwV+qMeaTE=; b=RRvXKcW5Ng4evII11ap44bGcHH5er3+Ljx5d/opDmWZN5KU2nThMig057LbTSUUZaE +fvSf1ApjLSKbJpMA5BXxC1Dlcj8oIcHwkTOwjo8GHoYX4/e9wSWXsyIqwOLwyHoe254 rno6O5f0ahmJWb5CWIFUrDxqKUbQBLyxj2r0VaRw0zcnTYsqk1YpFrQdmnbxKpwr1flX ZhXb7UERbLLezcWV5zcc9npRcE1/nJa1l7ZjJ50ia9OPcwyK9PqsTysG9ZyIvpsLLSzT RnHnrU1kWvhpYMQG91xg+h6JUONSZgj01sScVvQhU1CpoTexbHnDJe36bkW7daBh2uYI UH+w== X-Gm-Message-State: AAQBX9d8l7GU3t/bvoR7kDc4neBxwHMS8Yt6iD8Wg2N4mEfq3kqL1wgB gC9IfE81n9OQQbhXVqnsT4g= X-Google-Smtp-Source: AKy350aJaFntHhHbUG9MI8ooj+3D57RkURLGHHynthItQ5IDNnotpeWzZJLOOPG0rt2wtYTic7ZhtQ== X-Received: by 2002:a17:90a:7086:b0:247:83ed:7e5d with SMTP id g6-20020a17090a708600b0024783ed7e5dmr6464463pjk.18.1681764798565; Mon, 17 Apr 2023 13:53:18 -0700 (PDT) Received: from fedora.hsd1.ca.comcast.net ([2601:644:937f:7f20::c139]) by smtp.googlemail.com with ESMTPSA id h7-20020a17090ac38700b0022335f1dae2sm7609707pjt.22.2023.04.17.13.53.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Apr 2023 13:53:18 -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)" Subject: [PATCH 24/33] m68k: Convert various functions to use ptdescs Date: Mon, 17 Apr 2023 13:50:39 -0700 Message-Id: <20230417205048.15870-25-vishal.moola@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230417205048.15870-1-vishal.moola@gmail.com> References: <20230417205048.15870-1-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 ptdesc_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..b0e909e23e14 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); + ptdesc_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 = ptdesc_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); + ptdesc_pte_dtor(ptdesc); + ptdesc_free(ptdesc); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_DMA, 0); + struct ptdesc *ptdesc = ptdesc_alloc(GFP_DMA, 0); pte_t *pte; - if (!page) + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!ptdesc_pte_ctor(ptdesc)) { + ptdesc_free(ptdesc); return NULL; } - pte = page_address(page); - clear_page(pte); + pte = ptdesc_address(ptdesc); + ptdesc_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); + ptdesc_pte_dtor(ptdesc); + ptdesc_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); + ptdesc_free(virt_to_ptdesc(pgd)); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *new_pgd; + struct ptdesc *ptdesc = ptdesc_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..013d375fc239 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 { \ + ptdesc_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 911301224078..1e47b977bcf1 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)); + ptdesc_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(page)); + ptdesc_pte_dtor(virt_to_ptdesc(page)); free_page (page); return 1; } else if (ptable_list[type].next != dp) {