From patchwork Wed Feb 27 17:05:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Price X-Patchwork-Id: 10831995 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 92ABE1390 for ; Wed, 27 Feb 2019 17:08:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7A7D62E306 for ; Wed, 27 Feb 2019 17:08:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6E86B2E328; Wed, 27 Feb 2019 17:08:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1A26F2E306 for ; Wed, 27 Feb 2019 17:08:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FDax9kOIabB27+gb6056RqHLA+S/XbbonnU45X3O5qI=; b=SzqyFixpxwJ8Nf MmZp7fhd4G+FCWUWMs5gDzZ0ZZPgM95QzV1tPu78yUdsTaG2/MT0JWKbXpbB/fy37J9XJRTwrNh58 nQbLdOppFIcwOEJdFYYt/vzqt3Vx4O5z/g5KgnwWeQRB8V0lOOEmjdNF1UgRyNv+E7varJoHRUpo0 J/iWZnOahsQi7eKqWm6TjoZAVbqQ1FzP63cV2Nlw1Ra5yr+dhhAL5W2RVGf2QjB5ZgybYm9c+kdge f/UEoHiiHaHJxzYXui40TO2e/xFl2c7jGtyAMJzyyXI8PnzuJHZLnHEWlmASYQLu+ibuEXZX4Pv94 eOI7Gy3qXR97kyh2j8KA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2hA-0001HC-5j; Wed, 27 Feb 2019 17:08:36 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2fa-00081w-I7 for linux-arm-kernel@lists.infradead.org; Wed, 27 Feb 2019 17:07:09 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6C7F3A78; Wed, 27 Feb 2019 09:06:58 -0800 (PST) Received: from e112269-lin.arm.com (e112269-lin.cambridge.arm.com [10.1.196.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BB5463F738; Wed, 27 Feb 2019 09:06:54 -0800 (PST) From: Steven Price To: linux-mm@kvack.org Subject: [PATCH v3 08/34] ia64: mm: Add p?d_large() definitions Date: Wed, 27 Feb 2019 17:05:42 +0000 Message-Id: <20190227170608.27963-9-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190227170608.27963-1-steven.price@arm.com> References: <20190227170608.27963-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190227_090659_193610_1B77A306 X-CRM114-Status: GOOD ( 11.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , linux-ia64@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , "H. Peter Anvin" , "Liang, Kan" , x86@kernel.org, Steven Price , Ingo Molnar , Fenghua Yu , Arnd Bergmann , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Tony Luck , Ard Biesheuvel , linux-kernel@vger.kernel.org, James Morse Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_large() functions/macros. For ia64 leaf entries are always at the lowest level, so implement stubs returning 0. CC: Tony Luck CC: Fenghua Yu CC: linux-ia64@vger.kernel.org Signed-off-by: Steven Price --- arch/ia64/include/asm/pgtable.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index b1e7468eb65a..84dda295391b 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -271,6 +271,7 @@ extern unsigned long VMALLOC_END; #define pmd_none(pmd) (!pmd_val(pmd)) #define pmd_bad(pmd) (!ia64_phys_addr_valid(pmd_val(pmd))) #define pmd_present(pmd) (pmd_val(pmd) != 0UL) +#define pmd_large(pmd) (0) #define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0UL) #define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & _PFN_MASK)) #define pmd_page(pmd) virt_to_page((pmd_val(pmd) + PAGE_OFFSET)) @@ -278,6 +279,7 @@ extern unsigned long VMALLOC_END; #define pud_none(pud) (!pud_val(pud)) #define pud_bad(pud) (!ia64_phys_addr_valid(pud_val(pud))) #define pud_present(pud) (pud_val(pud) != 0UL) +#define pud_large(pud) (0) #define pud_clear(pudp) (pud_val(*(pudp)) = 0UL) #define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & _PFN_MASK)) #define pud_page(pud) virt_to_page((pud_val(pud) + PAGE_OFFSET)) @@ -286,6 +288,7 @@ extern unsigned long VMALLOC_END; #define pgd_none(pgd) (!pgd_val(pgd)) #define pgd_bad(pgd) (!ia64_phys_addr_valid(pgd_val(pgd))) #define pgd_present(pgd) (pgd_val(pgd) != 0UL) +#define pgd_large(pgd) (0) #define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0UL) #define pgd_page_vaddr(pgd) ((unsigned long) __va(pgd_val(pgd) & _PFN_MASK)) #define pgd_page(pgd) virt_to_page((pgd_val(pgd) + PAGE_OFFSET))