From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 647E5C1B0D9 for ; Sat, 5 Dec 2020 06:59:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B07622D58 for ; Sat, 5 Dec 2020 06:59:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729212AbgLEG7I (ORCPT ); Sat, 5 Dec 2020 01:59:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728652AbgLEG7H (ORCPT ); Sat, 5 Dec 2020 01:59:07 -0500 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F2CDC0613D1; Fri, 4 Dec 2020 22:58:20 -0800 (PST) Received: by mail-pj1-x1043.google.com with SMTP id b5so597036pjl.0; Fri, 04 Dec 2020 22:58:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2t14GdngmnBtNB8+/S//c7VFoU994BC7ZHYuUgeTwNA=; b=B70xeuCROEkE5Bz+UvG5+1R2Qm6aDLtzEm3lfkQy0Ufelnzzqf/8ZM5wJ6xnDM0WJo 9UnCgwfAAHI48ejrT5soi8lIxQWo7VXP/Anbt3Uw23eUNjYvmHWe1QIKB/qjkG+V/RWS c78bN3WNmdPnWnjYBGmV28AkFodlhbx6DCmHNnVWFUH78RC3GaFpsi+YSah9h9E/HK61 8DrI//repVXciq7MZNVD5QjtIbqaaJZ+gQhmradSme8NLwF/oS5Gw1E6SEduhxyVsZDc p6AyOMK9sQpFp3XbNZ/a9PRyjwmwAB3WkkB/tQqjb/35Uj8KovA0XcKeDdMVSokHb/L0 aBmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2t14GdngmnBtNB8+/S//c7VFoU994BC7ZHYuUgeTwNA=; b=VeU2HDocjgIj1OPtlXZar9Sf8JvwxWFq4fLGV8WZx8023tBeHthMqDsyuhe6qKTWmZ MHw6FLaC9p2V9xKl5rZZA+GEjswFkx3NAXhTXkoG+/NMoE+BaXD/mZJCVGpSbhFnkBaZ VrVVV352RRv+UaF0Y7wJoBVAjo/DUhGF5fBgE/+kwgp7l98Cg4TQwxTxYtSnbKfOZP1u UC/evZRig+7vpc3e976EybODote+Hvw68Tp88n1KXgYsqRCGHs9IuqzHqB1ob3cmaUPn y6jV7ciPw3o/O8Bsai0BDdtyQ2maxe1KOCh32vA3jN6oryzVJPlL1RHwVz0Ng2rEjyiW 48rQ== X-Gm-Message-State: AOAM532DSPeOu8CdUY7Or7pnwvmr333WkN7k0cH14FZVe0cC0wJkuGS/ PNmZg/xiWK9eN1AI0WzKbg4= X-Google-Smtp-Source: ABdhPJwjoSqyZStQFiANkD2aPMGXhbg/gkVP0cgFx8+7JFPhX8iwAUC3btu67DZQhOlu1F5LtmkdnA== X-Received: by 2002:a17:90b:68b:: with SMTP id m11mr111694pjz.208.1607151499847; Fri, 04 Dec 2020 22:58:19 -0800 (PST) Received: from bobo.ozlabs.ibm.com ([1.129.145.238]) by smtp.gmail.com with ESMTPSA id a14sm1110848pfl.141.2020.12.04.22.58.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Dec 2020 22:58:19 -0800 (PST) From: Nicholas Piggin To: linux-mm@kvack.org, Andrew Morton Cc: Nicholas Piggin , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Zefan Li , Jonathan Cameron , Christoph Hellwig , Christophe Leroy , Rick Edgecombe , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Subject: [PATCH v9 07/12] arm64: inline huge vmap supported functions Date: Sat, 5 Dec 2020 16:57:20 +1000 Message-Id: <20201205065725.1286370-8-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20201205065725.1286370-1-npiggin@gmail.com> References: <20201205065725.1286370-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org This allows unsupported levels to be constant folded away, and so p4d_free_pud_page can be removed because it's no longer linked to. Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Acked-by: Catalin Marinas Signed-off-by: Nicholas Piggin --- arch/arm64/include/asm/vmalloc.h | 23 ++++++++++++++++++++--- arch/arm64/mm/mmu.c | 26 -------------------------- 2 files changed, 20 insertions(+), 29 deletions(-) diff --git a/arch/arm64/include/asm/vmalloc.h b/arch/arm64/include/asm/vmalloc.h index 597b40405319..fc9a12d6cc1a 100644 --- a/arch/arm64/include/asm/vmalloc.h +++ b/arch/arm64/include/asm/vmalloc.h @@ -4,9 +4,26 @@ #include #ifdef CONFIG_HAVE_ARCH_HUGE_VMAP -bool arch_vmap_p4d_supported(pgprot_t prot); -bool arch_vmap_pud_supported(pgprot_t prot); -bool arch_vmap_pmd_supported(pgprot_t prot); +static inline bool arch_vmap_p4d_supported(pgprot_t prot) +{ + return false; +} + +static inline bool arch_vmap_pud_supported(pgprot_t prot) +{ + /* + * Only 4k granule supports level 1 block mappings. + * SW table walks can't handle removal of intermediate entries. + */ + return IS_ENABLED(CONFIG_ARM64_4K_PAGES) && + !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); +} + +static inline bool arch_vmap_pmd_supported(pgprot_t prot) +{ + /* See arch_vmap_pud_supported() */ + return !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); +} #endif #endif /* _ASM_ARM64_VMALLOC_H */ diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 1b60079c1cef..0af5b5cfb9c6 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1315,27 +1315,6 @@ void *__init fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot) return dt_virt; } -bool arch_vmap_p4d_supported(pgprot_t prot) -{ - return false; -} - -bool arch_vmap_pud_supported(pgprot_t prot); -{ - /* - * Only 4k granule supports level 1 block mappings. - * SW table walks can't handle removal of intermediate entries. - */ - return IS_ENABLED(CONFIG_ARM64_4K_PAGES) && - !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); -} - -bool arch_vmap_pmd_supported(pgprot_t prot) -{ - /* See arch_vmap_pud_supported() */ - return !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); -} - int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot) { pud_t new_pud = pfn_pud(__phys_to_pfn(phys), mk_pud_sect_prot(prot)); @@ -1427,11 +1406,6 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr) return 1; } -int p4d_free_pud_page(p4d_t *p4d, unsigned long addr) -{ - return 0; /* Don't attempt a block mapping */ -} - #ifdef CONFIG_MEMORY_HOTPLUG static void __remove_pgd_mapping(pgd_t *pgdir, unsigned long start, u64 size) { -- 2.23.0