From patchwork Mon Aug 7 23:05:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13345481 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 4855CC2FC00 for ; Mon, 7 Aug 2023 23:09:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231664AbjHGXI6 (ORCPT ); Mon, 7 Aug 2023 19:08:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231355AbjHGXHM (ORCPT ); Mon, 7 Aug 2023 19:07:12 -0400 Received: from mail-yb1-xb36.google.com (mail-yb1-xb36.google.com [IPv6:2607:f8b0:4864:20::b36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC3F72109; Mon, 7 Aug 2023 16:06:21 -0700 (PDT) Received: by mail-yb1-xb36.google.com with SMTP id 3f1490d57ef6-d35a9d7a5bdso5116874276.0; Mon, 07 Aug 2023 16:06:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691449572; x=1692054372; 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=NpbBCMkwg1WbsmcEnKHREFultw/IY4tG3Jsqz6w0a8E=; b=nS5J1UYk8f9msjmOJfcwkB8RnOSNZv60DefW2TDIHuOlvS9npGk8oT2LZd+SySl8sv g+gjV1veIOE2SNGvcFOMJ1pPimwLTZ7+pvFQ4bVBKr+eOsPpBFIPNto8klZeZdDlbFxo wkyNcA7u+kweH04q+BG4NvsUNaK7E9zibuZ01wwXmu5qj90Fw+mY1pf3xcSZWMeZa7wK aGRqh9CjWX7iCRUWp+ZrbhBol1e4MCC8JBlzqolLSWyg74wpF8elWEgkI2Vj4oenaGhD isx7MJZrX54CbrhbHsj99pEt0PqmBmGh9HnsD2DaWM5Gm6veS11IW5m9dzOKe44sU/M/ md6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691449572; x=1692054372; 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=NpbBCMkwg1WbsmcEnKHREFultw/IY4tG3Jsqz6w0a8E=; b=DHdwlr1ZLcIzfSyCwcFedN1pehdxk2lPDpj5jadwZTLJc4GFEAaoqWrQah7s/iRmPQ xpHWqQSNAXGQ+fQpXUQRUVHkk+sA/oQPGwi8mneqnmqjTzNTtxO1AjAvobOtn2nyXH+Q XxNAmZvISteddm8aG70TYyZ3YcyBCP0uLo57BPaYX87RJi2lTHQ1VtR5D+5sZSjki7yM oleFFYFPwzMMvfsUTYPSSTJv3g8eqt1wxAE/7ss7VDREkgCwlyoehSukWhF4YCQmTQKs clK8zPZ1QiDaiN0rIiy7h8K5OVdAJZ7eX3ZKvuGIXC0hdpAWUDdXd6s6SR4YskmbiUDt 6GCw== X-Gm-Message-State: AOJu0YxXqGFxmNPd9O+Y7p2Nd6y+QzBcpUpO0+L7UTxOLQYijx1fEOSd n3+k6vIpz9vmgKdfWdWU7ms= X-Google-Smtp-Source: AGHT+IHFLqgFAthROKM1yjg8aTn4QAXhjx425iARLy/TVdE1z6PZIG9RjSxWoTmqjhSqLQZr0gTMYg== X-Received: by 2002:a25:d24d:0:b0:d0a:127e:7478 with SMTP id j74-20020a25d24d000000b00d0a127e7478mr9478817ybg.44.1691449571835; Mon, 07 Aug 2023 16:06:11 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id d190-20020a25cdc7000000b00d3596aca5bcsm2545203ybf.34.2023.08.07.16.06.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 16:06:11 -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)" , Paul Walmsley , Palmer Dabbelt , Mike Rapoport Subject: [PATCH mm-unstable v9 26/31] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Mon, 7 Aug 2023 16:05:08 -0700 Message-Id: <20230807230513.102486-27-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230807230513.102486-1-vishal.moola@gmail.com> References: <20230807230513.102486-1-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 pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Acked-by: Palmer Dabbelt Acked-by: Mike Rapoport (IBM) Signed-off-by: Vishal Moola (Oracle) --- 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 9ce504737d18..430a3d05a841 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -353,12 +353,10 @@ 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 & ~__GFP_HIGHMEM, 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, @@ -436,12 +434,10 @@ 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 & ~__GFP_HIGHMEM, 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,