From nobody Tue Sep 9 22:03:29 2025 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 885B9C001DF for ; Wed, 2 Aug 2023 15:15:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235140AbjHBPPs (ORCPT ); Wed, 2 Aug 2023 11:15:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234494AbjHBPOV (ORCPT ); Wed, 2 Aug 2023 11:14:21 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E2B930CA; Wed, 2 Aug 2023 08:14:14 -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=9RHDmDB95v1l5T7Qwsk5FiocHYrmlic3rJL0E8q61Fc=; b=b9dkXpP35uwjKsyy9T0Nzk4a6L w7afQQ1eQRV2xf6D5i591kgMjsl5ex3XJeSgYsnyMfblmncIZp6y/FffNATtxVIVW+aJGswyDJ2FP tKdKGqTn0nVd6RRIk6DKZMpzgFSrCc+8MQ1PN1gQmlHtfdgPtYoprNvrIVcoQwez7dNY4ALKlPvTj +Mtr/4x3fxQhc3P8atSuRKXjOhmqG0hAFSkotVTVWY7wzlA1+Jpl1nhkLMNRwLpA4+QeHvbl+vUXn O1eB80/BTSTKYq01EwFFOKSHmWoyr5LQQTP3mb+pAi8L/8CE4owYLwYSeOL4gWDXgUQxs9iykwP0H +DvhJhqQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qRDY9-00FfjG-43; Wed, 02 Aug 2023 15:14:09 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Brian Cain , Mike Rapoport Subject: [PATCH v6 12/38] hexagon: Implement the new page table range API Date: Wed, 2 Aug 2023 16:13:40 +0100 Message-Id: <20230802151406.3735276-13-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230802151406.3735276-1-willy@infradead.org> References: <20230802151406.3735276-1-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 update_mmu_cache_range(). Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Brian Cain Acked-by: Mike Rapoport (IBM) --- arch/hexagon/include/asm/cacheflush.h | 8 ++++++-- arch/hexagon/include/asm/pgtable.h | 9 +-------- 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/a= sm/cacheflush.h index 6eff0730e6ef..dc3f500a5a01 100644 --- a/arch/hexagon/include/asm/cacheflush.h +++ b/arch/hexagon/include/asm/cacheflush.h @@ -58,12 +58,16 @@ extern void flush_cache_all_hexagon(void); * clean the cache when the PTE is set. * */ -static inline void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline void update_mmu_cache_range(struct vm_fault *vmf, + struct vm_area_struct *vma, unsigned long address, + pte_t *ptep, unsigned int nr) { /* generic_ptrace_pokedata doesn't wind up here, does it? */ } =20 +#define update_mmu_cache(vma, addr, ptep) \ + update_mmu_cache_range(NULL, vma, addr, ptep, 1) + void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, void *src, int len); #define copy_to_user_page copy_to_user_page diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/= pgtable.h index 59393613d086..dd05dd71b8ec 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -338,6 +338,7 @@ static inline int pte_exec(pte_t pte) /* __swp_entry_to_pte - extract PTE from swap entry */ #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) =20 +#define PFN_PTE_SHIFT PAGE_SHIFT /* pfn_pte - convert page number and protection value to page table entry = */ #define pfn_pte(pfn, pgprot) __pte((pfn << PAGE_SHIFT) | pgprot_val(pgprot= )) =20 @@ -345,14 +346,6 @@ static inline int pte_exec(pte_t pte) #define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) #define set_pmd(pmdptr, pmdval) (*(pmdptr) =3D (pmdval)) =20 -/* - * set_pte_at - update page table and do whatever magic may be - * necessary to make the underlying hardware/firmware take note. - * - * VM may require a virtual instruction to alert the MMU. - */ -#define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte) - static inline unsigned long pmd_page_vaddr(pmd_t pmd) { return (unsigned long)__va(pmd_val(pmd) & PAGE_MASK); --=20 2.40.1