From patchwork Sat Jul 13 07:08:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 13732360 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 712AEC3DA42 for ; Sat, 13 Jul 2024 07:09:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=khGNU48GKZvL2aKFycHBrjGhZBvYPLWK/qyN0wYq/X4=; b=FA8T3siqHeuu6lLgUfvNInq5M9 VBXORQbr3c8x/W/SF5pwY8mGl4nKEOZ8IciP9WM+NNFeLIlGp+jN5gtEL8/dDm/CLkkVpGsvSAn4W Vz1eDNLcvb9LSgIc8P+LyrLuXQEfJzwI1evkigw1GlaQKcPES0vGXSUZ7GOTrOMpFZdu1FrYQu5+i 2/FwY0aJXkLvcAtYS9gnOMV3qY5+yAAQvLPLK5pPkdZy0M1hRXS4+BU2ShfvQ1oP/lprmLFVUv9a+ C3VDx1deRsq8lKCq2PMW54sQYVe9ojoy8Ypo3GTPdbd8dYiPCRUFdXHG6MMdhXmheo7441tfCWT38 2kI15ThA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sSWsp-000000024jk-0tH7; Sat, 13 Jul 2024 07:09:27 +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 1sSWsU-000000024Wi-3Crc; Sat, 13 Jul 2024 07:09:08 +0000 Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4WLfhT746xz9sST; Sat, 13 Jul 2024 09:08:57 +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 EcLfv5DIvfXK; Sat, 13 Jul 2024 09:08:57 +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 4WLfhT68YXz9sSS; Sat, 13 Jul 2024 09:08:57 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id BFAF98B76C; Sat, 13 Jul 2024 09:08:57 +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 Ht0A52iiwZyr; Sat, 13 Jul 2024 09:08:57 +0200 (CEST) Received: from PO20335.idsi0.si.c-s.fr (unknown [192.168.233.195]) by messagerie.si.c-s.fr (Postfix) with ESMTP id B32A58B764; Sat, 13 Jul 2024 09:08:56 +0200 (CEST) From: Christophe Leroy To: Andrew Morton Cc: Christophe Leroy , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , Arnd Bergmann , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, Oscar Salvador , Peter Xu Subject: [PATCH v3 1/5] arch/x86: Drop own definition of pgd,p4d_leaf Date: Sat, 13 Jul 2024 09:08:23 +0200 Message-ID: X-Mailer: git-send-email 2.44.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1720854504; l=1436; i=christophe.leroy@csgroup.eu; s=20211009; h=from:subject:message-id; bh=jETqTIBrbMCiSKtThDBVuiOakjqQZl9LJXDhA4Uy90Y=; b=j42rjo6o36t5FwwD7Ik5HJFIbBLA/oCUlT32r6QXUQT1OdEHDQG6EX/TeG2Jo+q73BQzLaMAy OGmrGbcVS1wAtLcieRc2n/Q4O9B0lUFj2TyovGgx73fb20ZcQs3cJV8 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-20240713_000906_969285_144E8EE5 X-CRM114-Status: UNSURE ( 8.53 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=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