From nobody Tue Feb 10 02:49:43 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1687467614; cv=none; d=zohomail.com; s=zohoarc; b=T4+//OXMEiK3k8sM/qG+S610MtIZWrbmC20N2eTu/ILiD4Ft7f1HUZe9CmbByNDHjJqUY9GDqJgRgI1q/yVsUFOD+66KvaofU7mhLjb6VV+ZAxagqcGV6gVhZMwZK0Stx8u3O33V+kudaxpw+dT0Gk7Hp1sPdNG7IjYPCbILp60= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1687467614; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Z2eVDlXL8alglJUGVXcc8JA7ix0brgT+4DYqdXjkOuM=; b=bHN1R9eMOVBpS4eC9gqk0asSWVDlK+g35nHAaubNYA52jk9f+CHJd1li4hc2ERIX+nHf6BR5GV7wIf/+XO+znlFVRc/cbfFfTECNTKCxAD5zaSbT3cnEvHXpMyhTHPZFlopDvB7gxta0EnCDDKGEZXnWhmG+2E+Re1j63bniTCU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1687467614244311.04969114072253; Thu, 22 Jun 2023 14:00:14 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.554036.865091 (Exim 4.92) (envelope-from ) id 1qCRP5-000357-DU; Thu, 22 Jun 2023 20:59:43 +0000 Received: by outflank-mailman (output) from mailman id 554036.865091; Thu, 22 Jun 2023 20:59:43 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qCRP5-000345-3P; Thu, 22 Jun 2023 20:59:43 +0000 Received: by outflank-mailman (input) for mailman id 554036; Thu, 22 Jun 2023 20:59:41 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qCROE-0006Mq-E4 for xen-devel@lists.xenproject.org; Thu, 22 Jun 2023 20:58:50 +0000 Received: from mail-yb1-xb33.google.com (mail-yb1-xb33.google.com [2607:f8b0:4864:20::b33]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 9565da2c-113f-11ee-b237-6b7b168915f2; Thu, 22 Jun 2023 22:58:48 +0200 (CEST) Received: by mail-yb1-xb33.google.com with SMTP id 3f1490d57ef6-bff27026cb0so2083650276.1 for ; Thu, 22 Jun 2023 13:58:48 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:47 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 9565da2c-113f-11ee-b237-6b7b168915f2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467528; x=1690059528; 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=Z2eVDlXL8alglJUGVXcc8JA7ix0brgT+4DYqdXjkOuM=; b=DbS/FVmft5J2VICO+Nf92XNy2wvgGSGG4msWs7E9V6KxYzm+tSzGTprRX7LY1Az4z2 YpRpjh1gFRRLJ/li9beG6PIvlUHG9ZRwTYplGkWymenSAyOrWC24owgK1fhjKR3yrEtN hDpVadLC+93vTqzcu4H8sHAK66wH4JJJgH7pIr7Eko07frtpGYI2AQVOUDXreCJkOXFd 1tssjWaKiQ/O8SbW0+/XdEB5l3eXLYaeBTMZyr+OokbQWbFNHBYbcUGqZxcWlMHvdqKX xSAVDlOu/6aRWjk6xB/QGaUjzCCA1KdGOVBnKZ7vKSpcGAQnSE9HW2pjZqAURJ5Ds3lR MAFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467528; x=1690059528; 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=Z2eVDlXL8alglJUGVXcc8JA7ix0brgT+4DYqdXjkOuM=; b=LKr1UGMdXN28Xk1olPyj9tsmVd43nX2SKHXOluEJZdujd/cu2FHnYmW634nqljtQJO fYgSTHVy1Ts18dGGcbKfTh6E6HIUXIS8Yd1eZfRikNDZAwEfPOFjonkY87YRwIUxpvn3 3ZnsShDvtRxwqehCaR7E/iODDWcUi5FWnHveNJOan1e7FPp95/5Rq0H/jWZIpeWpXhO2 glY2yoLqVyNkNFsdmBHfNpYtwOum0Liqk8/MGeC6v6X1FjUmSa1Mk5DC0AUPPQq3iQtb dTjj7tN/iOfhxLO163Rb52FGSuhAxacDGXAd6BxkV13qaBgSvmjJyFzj9Tek3SRZqrJk NKZA== X-Gm-Message-State: AC+VfDzas8qOhKxBEObRxNpsxx5pMW7wEP31NV355R9WeTMwpSRxGI7O D7KvNqnyuG46gvqyA0D3Y2s= X-Google-Smtp-Source: ACHHUZ6vkVdQ+2aFbexAEsw0zpg6DZHD2/vRtLHLUIl/mOJbyXKI4RGZmCd4L5PdfTZt6ngBy4nBHA== X-Received: by 2002:a25:44d:0:b0:bfe:e65b:cd1 with SMTP id 74-20020a25044d000000b00bfee65b0cd1mr5470842ybe.46.1687467527711; Thu, 22 Jun 2023 13:58:47 -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)" , Thomas Bogendoerfer , Mike Rapoport Subject: [PATCH v5 25/33] mips: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:37 -0700 Message-Id: <20230622205745.79707-26-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1687467614528100001 Content-Type: text/plain; charset="utf-8" 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: Mike Rapoport (IBM) --- arch/mips/include/asm/pgalloc.h | 32 ++++++++++++++++++-------------- arch/mips/mm/pgtable.c | 8 +++++--- 2 files changed, 23 insertions(+), 17 deletions(-) diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgallo= c.h index f72e737dda21..40e40a7eb94a 100644 --- a/arch/mips/include/asm/pgalloc.h +++ b/arch/mips/include/asm/pgalloc.h @@ -51,13 +51,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm); =20 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_pages((unsigned long)pgd, PGD_TABLE_ORDER); + pagetable_free(virt_to_ptdesc(pgd)); } =20 -#define __pte_free_tlb(tlb,pte,address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, address) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) =20 #ifndef __PAGETABLE_PMD_FOLDED @@ -65,18 +65,18 @@ do { \ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long add= ress) { pmd_t *pmd; - struct page *pg; + struct ptdesc *ptdesc; =20 - pg =3D alloc_pages(GFP_KERNEL_ACCOUNT, PMD_TABLE_ORDER); - if (!pg) + ptdesc =3D pagetable_alloc(GFP_KERNEL_ACCOUNT, PMD_TABLE_ORDER); + if (!ptdesc) return NULL; =20 - if (!pgtable_pmd_page_ctor(pg)) { - __free_pages(pg, PMD_TABLE_ORDER); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } =20 - pmd =3D (pmd_t *)page_address(pg); + pmd =3D ptdesc_address(ptdesc); pmd_init(pmd); return pmd; } @@ -90,10 +90,14 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm= , unsigned long address) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long add= ress) { pud_t *pud; + struct ptdesc *ptdesc =3D pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, + PUD_TABLE_ORDER); =20 - pud =3D (pud_t *) __get_free_pages(GFP_KERNEL, PUD_TABLE_ORDER); - if (pud) - pud_init(pud); + if (!ptdesc) + return NULL; + pud =3D ptdesc_address(ptdesc); + + pud_init(pud); return pud; } =20 diff --git a/arch/mips/mm/pgtable.c b/arch/mips/mm/pgtable.c index b13314be5d0e..1506e458040d 100644 --- a/arch/mips/mm/pgtable.c +++ b/arch/mips/mm/pgtable.c @@ -10,10 +10,12 @@ =20 pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *ret, *init; + pgd_t *init, *ret =3D NULL; + struct ptdesc *ptdesc =3D pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, + PGD_TABLE_ORDER); =20 - ret =3D (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_TABLE_ORDER); - if (ret) { + if (ptdesc) { + ret =3D ptdesc_address(ptdesc); init =3D pgd_offset(&init_mm, 0UL); pgd_init(ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, --=20 2.40.1