From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH v4 24/34] loongarch: Convert various functions to use ptdescs Date: Mon, 12 Jun 2023 14:04:13 -0700 Message-ID: <20230612210423.18611-25-vishal.moola@gmail.com> References: <20230612210423.18611-1-vishal.moola@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: 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=1O87Xe48ExfElh01mut7bISNdCYSE+cCtHKE1D6x8H0=; b=L0qPVU9VPstCdw 39/30MCPoqhDkJPw/VyK5wxZ1M4cWXox04gFfJqSQxFCp0kI0m+nUbi/OaoM8gZEe8BSyrXsoxDbj GEV6bBHhAOuXZ1Eqvx70yRFK0+nWV/2X6RxwvgBgQ0ZR+j16wIVkpGS48Al+hJlKrvRTWzfbs+LaQ Dbd9rN74O/gmwHfT3zpci5TlnO8b5Vo7tRxbFEkj4KbZ05/GBgdxHLbvr31KvkzHXnlCaVfityv6k Tpo4Rx839M3IpqPXOglJpiYj4zPy7GyxpUOHMJx1HBC6OREjVDwvRKMb0pjHgg5wfeLpDOAlbgurb P4q5BrC5YFCFN75HYYuA==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686603935; x=1689195935; 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=KVp6CEv5MRUGdp+2H8Cti9WenGhaFTTbvrfHRtAH9kc=; b=SoTIqHuLCAWfEiaWrP9H5RMeBUfw/4blxWiNTbN+EgENMXgximV8iyAXgGOp4XDuw0 D58PnjKgFper5JHCNJspm8td1YpFLE0wlV4KRGzp+/fPbBvQvEKYiEzI6FQgDegSQMJA W98fOojhxmIMYwSI3q765OUKGKExSDNbpRlItg5xCIvhjN0428xf4HNUJQQ5P+6zPMLU Ma3chacqOtGRi3R200/qVHAxMt5ARo9Z4Ra2qg/4Z+GPUMiMBJG7HmJrnWozDqrgtVLb PcdJ9jNUuMMACxveQJzaFtzM2eOsEwEww1xM2Q56gVCjb83OZCynZYnfeNSiDloj+NNW ogTA== In-Reply-To: <20230612210423.18611-1-vishal.moola@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+glpr-linux-riscv=m.gmane-mx.org@lists.infradead.org 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)" , Huacai Chen 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/loongarch/include/asm/pgalloc.h | 27 +++++++++++++++------------ arch/loongarch/mm/pgtable.c | 7 ++++--- 2 files changed, 19 insertions(+), 15 deletions(-) diff --git a/arch/loongarch/include/asm/pgalloc.h b/arch/loongarch/include/asm/pgalloc.h index af1d1e4a6965..70bb3bdd201e 100644 --- a/arch/loongarch/include/asm/pgalloc.h +++ b/arch/loongarch/include/asm/pgalloc.h @@ -45,9 +45,9 @@ extern void pagetable_init(void); extern pgd_t *pgd_alloc(struct mm_struct *mm); #define __pte_free_tlb(tlb, pte, address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) #ifndef __PAGETABLE_PMD_FOLDED @@ -55,18 +55,18 @@ do { \ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) { pmd_t *pmd; - struct page *pg; + struct ptdesc *ptdesc; - pg = alloc_page(GFP_KERNEL_ACCOUNT); - if (!pg) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, 0); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(pg)) { - __free_page(pg); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pmd = (pmd_t *)page_address(pg); + pmd = ptdesc_address(ptdesc); pmd_init(pmd); return pmd; } @@ -80,10 +80,13 @@ 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 address) { pud_t *pud; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - pud = (pud_t *) __get_free_page(GFP_KERNEL); - if (pud) - pud_init(pud); + if (!ptdesc) + return NULL; + pud = ptdesc_address(ptdesc); + + pud_init(pud); return pud; } diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index 36a6dc0148ae..cdba10ffc0df 100644 --- a/arch/loongarch/mm/pgtable.c +++ b/arch/loongarch/mm/pgtable.c @@ -11,10 +11,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *ret, *init; + pgd_t *init, *ret = NULL; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - ret = (pgd_t *) __get_free_page(GFP_KERNEL); - if (ret) { + if (ptdesc) { + ret = (pgd_t *)ptdesc_address(ptdesc); init = pgd_offset(&init_mm, 0UL); pgd_init(ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, -- 2.40.1