From nobody Wed Feb 11 13:20:04 2026 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 0CB68C61DA4 for ; Wed, 15 Mar 2023 05:16:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231598AbjCOFQT (ORCPT ); Wed, 15 Mar 2023 01:16:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231307AbjCOFPI (ORCPT ); Wed, 15 Mar 2023 01:15:08 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 818952748D; Tue, 14 Mar 2023 22:14:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=RJm37s6exHMhL80A15n5dqXB4pKNus7yxXTpBOkgNUI=; b=CgXM4A7XHbUEAmUDTF22UPLVCd zvb+5FvXwSGpI2Q/Z66mghrtiyZmHXJIph19KRPz/fBfzE/+9CCB0Bmt+elDnjhZ1YDKbiVhfyd3c hHd/olfBHzkGv7CkRoS0Vyr5N43mJTWVKq1Ua7jzhPGE8cb1a8qDACgRemAqw2HCP7Y1BbC00UouK oZ5b5pVsjuyhG9FxOwaQOqDZ3hceid7bahSI+fqwNsM26XOCuKFQcm3DGZ0GpA0pBkwsxmwsYwIOH 4FgZp/0MyQGgy6+/6Ma10Q/XbKrp8wIQ1qmoahbMNU/lEca8Nm5MawGg0fp5nL86jr4kr2FyClPHI GqqqmsoQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pcJTN-00DYD4-MQ; Wed, 15 Mar 2023 05:14:49 +0000 From: "Matthew Wilcox (Oracle)" To: linux-arch@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Subject: [PATCH v4 27/36] x86: Implement the new page table range API Date: Wed, 15 Mar 2023 05:14:35 +0000 Message-Id: <20230315051444.3229621-28-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230315051444.3229621-1-willy@infradead.org> References: <20230315051444.3229621-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add PFN_PTE_SHIFT and a noop update_mmu_cache_range(). Signed-off-by: Matthew Wilcox (Oracle) Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: x86@kernel.org Cc: "H. Peter Anvin" Acked-by: Mike Rapoport (IBM) --- arch/x86/include/asm/pgtable.h | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 1031025730d0..b237878061c4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -184,6 +184,8 @@ static inline int pte_special(pte_t pte) =20 static inline u64 protnone_mask(u64 val); =20 +#define PFN_PTE_SHIFT PAGE_SHIFT + static inline unsigned long pte_pfn(pte_t pte) { phys_addr_t pfn =3D pte_val(pte); @@ -1019,13 +1021,6 @@ static inline pud_t native_local_pudp_get_and_clear(= pud_t *pudp) return res; } =20 -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - page_table_check_ptes_set(mm, addr, ptep, pte, 1); - set_pte(ptep, pte); -} - static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { @@ -1291,6 +1286,10 @@ static inline void update_mmu_cache(struct vm_area_s= truct *vma, unsigned long addr, pte_t *ptep) { } +static inline void update_mmu_cache_range(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, unsigned int nr) +{ +} static inline void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd) { --=20 2.39.2