From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH v4 29/34] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Mon, 12 Jun 2023 14:04:18 -0700 Message-ID: <20230612210423.18611-30-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=4FhigkC1CjL2k/n5tnsnhnqQSJxWtPANd614V5H15CA=; b=cYzm0X4yw1GP0y TNJcsJnipNXDB2FS/AlnLqwbDPezrVUeuhSojC5NvmzAvY0HxCWDqD5FpDUwoohZ94KXdOkLAPyJd IIdSFo5KXtvf3/h3aH6bVF7bDJLSpcM8W7XMvuKAoJgAk5DGFy+Y2pS5i7WtQdlLa8WtdKt2OjeIr Vz3mKgJgJN6V6qsaprYHR8bvK+G97L6XtaPWX21WeB5+uoi/dyntnPBaPzl/ySWF7Tom72NroxcPF r/86QWsL0GhhwEVcQrmcHKtdHsRTVG46bhIwvfyWfyYHeAZ/06RCBk1u4uudyFPstBwnsyQ5yOkwD AiL+ZFfK2+GSjNkVu7gg==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686603945; x=1689195945; 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=RAmT8w/AncpH6QVoSIrvIComylZ1SrhYEKCy+DX5WSQ=; b=TKVGiilQ78a/OhIPJrQkIG23uSCTs20i/bAbbkbs/oLPcc63baV2HRxlfziGdsvmbT NGwmW85cSCp6KespeqLEesubwuI3LepWWanH5S5npuzVlt9k5eU+arhtadffMS44bFKz tZe3hNLEkkGFlp7EldonlERGCsKXmABWlm5tuivlOHa4YP48jZLg/NXNUT6fL0OAV+la FfMXzF6x14kaKnLc9TNsZyJBWsa9Csrn4MI3KMBJ6+29vVkgPdAEbVwqoitINTtP8h57 PClm1IA8Ha5Fd3vbc4M29HaqMx1DRRQlZyGElsQzM+NPYmwv6tn2zngJCKwAeXiQVKW2 CRrg== 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)" , Palmer Dabbelt 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: Palmer Dabbelt --- arch/riscv/include/asm/pgalloc.h | 8 ++++---- arch/riscv/mm/init.c | 16 ++++++---------- 2 files changed, 10 insertions(+), 14 deletions(-) diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h index 59dc12b5b7e8..d169a4f41a2e 100644 --- a/arch/riscv/include/asm/pgalloc.h +++ b/arch/riscv/include/asm/pgalloc.h @@ -153,10 +153,10 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) #endif /* __PAGETABLE_PMD_FOLDED */ -#define __pte_free_tlb(tlb, pte, buf) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, buf) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte));\ } while (0) #endif /* CONFIG_MMU */ diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 3d689ffb2072..6bfeec80bf4e 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -354,12 +354,10 @@ static inline phys_addr_t __init alloc_pte_fixmap(uintptr_t va) static phys_addr_t __init alloc_pte_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pte_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pte_ctor(ptdesc)); + return __pa((pte_t *)ptdesc_address(ptdesc)); } static void __init create_pte_mapping(pte_t *ptep, @@ -437,12 +435,10 @@ static phys_addr_t __init alloc_pmd_fixmap(uintptr_t va) static phys_addr_t __init alloc_pmd_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pmd_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pmd_ctor(ptdesc)); + return __pa((pmd_t *)ptdesc_address(ptdesc)); } static void __init create_pmd_mapping(pmd_t *pmdp, -- 2.40.1