From patchwork Wed Jul 10 07:51:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 13728974 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9B3D9C3DA42 for ; Wed, 10 Jul 2024 07:51:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=LV+mBKhkHCZCK/gj9ZDYMNeaJjlYa5LbWnriVk1Oe+g=; b=ebuSxgpFaMbG+/ TftZJsAxlDfwSJ4564sYo1cF0fwoyxc8+mA1U5avraffzt0QiFoaUgYDb9wJUvXcGj6uIPs2bfReq lzvhBRuwRPyUZFJ1i4Un/JegN8HsoMmlGfp3fZTuCOzrfu4EPV/nxeoCyRs2N85VKMJAInh0FlEiX QgVYuwmf2YTMb2nVAS9kf9WWPLB5A/pX636G7vXQ28S2DpI1IXWirihf43O12pHzGQBZEPo+1Z4dL 8PZkLo6c4UjC+LdYvHXwjuh7XXrZz2U4/Zr9IGJOIhSJp+v85VXB3Q/2MoGaicRC4zgqnxq/RNlCY 7VpWpRCZPaDvoNnDr5mA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sRS78-00000009n0R-0cYC; Wed, 10 Jul 2024 07:51:46 +0000 Received: from pegase2.c-s.fr ([93.17.235.10]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sRS75-00000009mye-2JZ7 for linux-riscv@lists.infradead.org; Wed, 10 Jul 2024 07:51:45 +0000 Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4WJqn62Pw2z9sSv; Wed, 10 Jul 2024 09:51:38 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EpgCmhGS0H2a; Wed, 10 Jul 2024 09:51:38 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4WJqmw2510z9sT8; Wed, 10 Jul 2024 09:51:28 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 35A9E8B779; Wed, 10 Jul 2024 09:51:28 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id Su09KU2IeCB5; Wed, 10 Jul 2024 09:51:28 +0200 (CEST) Received: from PO20335.idsi0.si.c-s.fr (unknown [192.168.233.26]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E1D468B766; Wed, 10 Jul 2024 09:51:27 +0200 (CEST) From: Christophe Leroy To: Andrew Morton , Arnd Bergmann Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, linux-riscv@lists.infradead.org, Oscar Salvador , Peter Xu Subject: [PATCH v2 1/3] arch/x86: Drop own definition of pgd,p4d_leaf Date: Wed, 10 Jul 2024 09:51:20 +0200 Message-ID: X-Mailer: git-send-email 2.44.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1720597882; l=1393; i=christophe.leroy@csgroup.eu; s=20211009; h=from:subject:message-id; bh=y1Fku5Ig+SrLh/mlbGZSDg5khbyWLz2sNH+Fhxvf8CY=; b=ZZZbGXGTOnTKjAp08fuPZS4cmRBbyfRVezQt4Oz9YhJ7W4Res5iQwjOEEXfNvOQwA/ghhFQas Nvz5aEWhOUEA4kFg32/yccO89q7Vl3J1d9wEvAyscMk8Xay/WbsDPQO X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240710_005144_128389_F1E29092 X-CRM114-Status: UNSURE ( 7.87 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Oscar Salvador We provide generic definitions of pXd_leaf in pgtable.h when the arch do not define their own, where the generic pXd_leaf always return false. Although x86 defines {pgd,p4d}_leaf, they end up being a no-op, so drop them and make them fallback to the generic one. Signed-off-by: Oscar Salvador Signed-off-by: Christophe Leroy Reviewed-by: Peter Xu --- arch/x86/include/asm/pgtable.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 65b8e5bb902c..772f778bac06 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -252,13 +252,6 @@ static inline unsigned long pgd_pfn(pgd_t pgd) return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT; } -#define p4d_leaf p4d_leaf -static inline bool p4d_leaf(p4d_t p4d) -{ - /* No 512 GiB pages yet */ - return 0; -} - #define pte_page(pte) pfn_to_page(pte_pfn(pte)) #define pmd_leaf pmd_leaf @@ -1396,9 +1389,6 @@ static inline bool pgdp_maps_userspace(void *__ptr) return (((ptr & ~PAGE_MASK) / sizeof(pgd_t)) < PGD_KERNEL_START); } -#define pgd_leaf pgd_leaf -static inline bool pgd_leaf(pgd_t pgd) { return false; } - #ifdef CONFIG_MITIGATION_PAGE_TABLE_ISOLATION /* * All top-level MITIGATION_PAGE_TABLE_ISOLATION page tables are order-1 pages