From patchwork Wed Mar 15 05:14:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 69992 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:5915:0:0:0:0:0 with SMTP id v21csp2153434wrd; Tue, 14 Mar 2023 22:48:40 -0700 (PDT) X-Google-Smtp-Source: AK7set/uPQNVgs+dQ2zzHAMTQ6fvcrM5wR9YfCucx/w5o7eNJOOutcHMdxEozD3YJER0qYS63PW6 X-Received: by 2002:a62:1c08:0:b0:624:12fd:2d6c with SMTP id c8-20020a621c08000000b0062412fd2d6cmr7330764pfc.8.1678859320617; Tue, 14 Mar 2023 22:48:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1678859320; cv=none; d=google.com; s=arc-20160816; b=lIiEhqb8kh45EwLaTW2gjETzEXJdgExL4Hi77N9qnDVWI/VujKaPLDgrPlWIyV9Mjs 7SVgSZOGnuxcG2KnvcxUANWkbvzpoJpqLGur9QcZFC3Tl9MOE6VE1EIi1ej8fpfDVVry bl2Zn0rQoH2VNl2OyNwKLzu/MeygePPCqKN/xsJBqLstF/xqP9u4vlCTLyH4yDt202ud aj20pUlZN3qgn5eitVP60EC0h0Le6tW3FY9bS+OZb8w/shWPAId1wSIFtVXsWUv3gZo7 s04vXc+oX1QIv2cJqXOviQZrGO0l1Ac6kr3d2Jffy5WzThu1G6XkPnoBpSWMSXheinYA ceIg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=0st9Mrc59fhc9IMmLMdFdFFlAbLT9wbreqz2AWFYyJ8=; b=zgiXLaXgv66O2VQJ7hpvI/58IQmnLZ2ppXwXRjC1V4iAs8es8dXGXlizU2b7508BPC smx42/oQkG277VzRcdy8oi7IRMf2oWPL6Z7vwFODkB3YXv40oecpTev9QmWC1GZGnXaK tMokQxuLppTk4EdCYrPoW4R86K12z+hLYjjR9MGkhWros8DklJX6zVCeXz+81zoTImZf 5MpNEAq450NE394gFjbDECB5U0nBeH5Gnv1ERJYbUfNHJyCJeD2k8lfX12a3jEAN5YtP Vxg+4u8ryAS3uYb/EcvYydRD/HVDObmowY7QsVC5qoS2/8lRkFdutaju8buNs1UiBdeT 8NbQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=Dgag4LmK; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id x7-20020aa79407000000b005a9c4c41b0esi4017925pfo.22.2023.03.14.22.48.26; Tue, 14 Mar 2023 22:48:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=Dgag4LmK; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231349AbjCOFQV (ORCPT + 99 others); Wed, 15 Mar 2023 01:16:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231309AbjCOFPI (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 84CA32B9C3; 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=0st9Mrc59fhc9IMmLMdFdFFlAbLT9wbreqz2AWFYyJ8=; b=Dgag4LmKF0rIz5AIdwp+wqJheo CLolCrddE7Bc8qR0iHxu6Ho7H150VijFW/ZxoRKOY6x4pkWnZmiPY0OM2oN5P8H/Fs/MeH4QPtXgk ZE9mPbldtrjXnQVG697nsaMbI2wTBcFEO7DWOgSTrwEVysrfAlkiBXRblG53BZqYTrzOgkNvRlNQu 7OChw55UZHmed+ZDbPSiZJwFD+Q5Q56Hv65kwKcSjZV6jnH7UGJWU4GYt9WxNmwbniA0F2rFm/IEy WV9Cu7ZcCxlHNqKM4+Sl7GfbN2anMoSQIpkz59WebhopeUz0ENti95uNjgV9Zi7Gb0vNAl40o1sVl koLF9org==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pcJTK-00DYB9-WE; Wed, 15 Mar 2023 05:14:47 +0000 From: "Matthew Wilcox (Oracle)" To: linux-arch@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Richard Henderson , Ivan Kokshaysky , Matt Turner , linux-alpha@vger.kernel.org Subject: [PATCH v4 06/36] alpha: Implement the new page table range API Date: Wed, 15 Mar 2023 05:14:14 +0000 Message-Id: <20230315051444.3229621-7-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 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760411590665036946?= X-GMAIL-MSGID: =?utf-8?q?1760411590665036946?= Add PFN_PTE_SHIFT, update_mmu_cache_range() and flush_icache_pages(). Signed-off-by: Matthew Wilcox (Oracle) Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: linux-alpha@vger.kernel.org Acked-by: Mike Rapoport (IBM) --- arch/alpha/include/asm/cacheflush.h | 10 ++++++++++ arch/alpha/include/asm/pgtable.h | 9 +++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.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) +/* + * 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 #endif /* _ALPHA_CACHEFLUSH_H */ diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h index ba43cb841d19..6c24c408b8e9 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)) = (pteval)) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* 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) #define pte_page(pte) pfn_to_page(pte_pfn(pte)) #define mk_pte(page, pgprot) \ @@ -303,6 +303,11 @@ extern inline void update_mmu_cache(struct vm_area_struct * vma, { } +static inline void update_mmu_cache_range(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().