From nobody Mon Feb 9 23:15:01 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 9EA33EB64DA for ; Mon, 10 Jul 2023 20:44:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230099AbjGJUoF (ORCPT ); Mon, 10 Jul 2023 16:44:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230487AbjGJUn4 (ORCPT ); Mon, 10 Jul 2023 16:43:56 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E526E69; Mon, 10 Jul 2023 13:43:44 -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=NROTlL6IHKcHVr5IJzwMhJiAK5XHIL/ixXU1imRUdQ4=; b=E8a7/eIMgmOjsWrBHysNQXo1Ni ggvEuhfIneD9rq41HR/VUHUxXTJXr/lSG839FvzdGonh++4SxvKlk43T6taeXoogmOYrwjQbJwbnH E+5D6BjuHj4ufh0T8ojX9/RPH2n4+tDnWdrTf2UwwdZGxe/V04uHxgGLik7rPhCZstHGKAt7jbdQX w49Chx2oydHYYjGyyXLvrCsLKhhb8ZMySs9Dnt44+D1TB7jlCCGiLYpHM78Ol1RFiA1yIwML3s9JR 6bhbxgAAtiAyQST7teIYKdsEOFVgso9+5RoiI7smGYFo9KanW2IL36S7lXKxlSJFLpuzp1Kfjr1ip 7p9jiTQw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qIxjR-00EuoR-Md; Mon, 10 Jul 2023 20:43:41 +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, Mike Rapoport , Richard Henderson , Ivan Kokshaysky , Matt Turner , linux-alpha@vger.kernel.org Subject: [PATCH v5 07/38] alpha: Implement the new page table range API Date: Mon, 10 Jul 2023 21:43:08 +0100 Message-Id: <20230710204339.3554919-8-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230710204339.3554919-1-willy@infradead.org> References: <20230710204339.3554919-1-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, update_mmu_cache_range() and flush_icache_pages(). Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Mike Rapoport (IBM) Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: linux-alpha@vger.kernel.org --- arch/alpha/include/asm/cacheflush.h | 10 ++++++++++ arch/alpha/include/asm/pgtable.h | 10 ++++++++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/c= acheflush.h index 9945ff483eaf..3956460e69e2 100644 --- a/arch/alpha/include/asm/cacheflush.h +++ b/arch/alpha/include/asm/cacheflush.h @@ -57,6 +57,16 @@ extern void flush_icache_user_page(struct vm_area_struct= *vma, #define flush_icache_page(vma, page) \ flush_icache_user_page((vma), (page), 0, 0) =20 +/* + * Both implementations of flush_icache_user_page flush the entire + * address space, so one call, no matter how many pages. + */ +static inline void flush_icache_pages(struct vm_area_struct *vma, + struct page *page, unsigned int nr) +{ + flush_icache_user_page(vma, page, 0, 0); +} + #include =20 #endif /* _ALPHA_CACHEFLUSH_H */ diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgta= ble.h index ba43cb841d19..747b5f706c47 100644 --- a/arch/alpha/include/asm/pgtable.h +++ b/arch/alpha/include/asm/pgtable.h @@ -26,7 +26,6 @@ struct vm_area_struct; * hook is made available. */ #define set_pte(pteptr, pteval) ((*(pteptr)) =3D (pteval)) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) =20 /* PMD_SHIFT determines the size of the area a second-level page table can= map */ #define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3)) @@ -189,7 +188,8 @@ extern unsigned long __zero_page(void); * and a page entry and page directory to the page they refer to. */ #define page_to_pa(page) (page_to_pfn(page) << PAGE_SHIFT) -#define pte_pfn(pte) (pte_val(pte) >> 32) +#define PFN_PTE_SHIFT 32 +#define pte_pfn(pte) (pte_val(pte) >> PFN_PTE_SHIFT) =20 #define pte_page(pte) pfn_to_page(pte_pfn(pte)) #define mk_pte(page, pgprot) \ @@ -303,6 +303,12 @@ extern inline void update_mmu_cache(struct vm_area_str= uct * vma, { } =20 +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) +{ +} + /* * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that * are !pte_none() && !pte_present(). --=20 2.39.2