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=-12.3 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 23306C433E1 for ; Tue, 25 Aug 2020 15:24:52 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C3FEE20786 for ; Tue, 25 Aug 2020 15:24:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b0AWgWGG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3FEE20786 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BbXq56tJxzDqX2 for ; Wed, 26 Aug 2020 01:24:49 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::444; helo=mail-pf1-x444.google.com; envelope-from=npiggin@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=b0AWgWGG; dkim-atps=neutral Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BbXDw3NsSzDq72 for ; Wed, 26 Aug 2020 00:58:40 +1000 (AEST) Received: by mail-pf1-x444.google.com with SMTP id m71so7567561pfd.1 for ; Tue, 25 Aug 2020 07:58:40 -0700 (PDT) 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=M/5eWAbEDQgOkiF6H06FGKZHT/EDb26p/JCBso4Tchw=; b=b0AWgWGGUkjUbVDCI2TEdIDTZ4JsxKTUttA8MH4l5sDv3h/rE3ZTwojNnF/PYUM1Mc rChp7wjU4B40W63KYGDwvx8DMJuTlmJIWmiOvJ24kwFppMGbxEe7UsbE/BSgegHkfb3j LONhu22IlfERWDw8KCGGDDHT35FyWcfSU82h3i6KidDfX79nz7QiE46/WdC5uZ4brzxu 8hrUEomJ1vnvGYG6UeDro5fRriPjk19sdTPUR0iAB0Omt6kUP5pVWMF3b7oZncCSELwC CgmHBgVY75MA6GwJqdeihvCoBXpuhmVIXDzN41XcjOhbeUcHiyD7Ay2fGa3VscHvt8OI U6Ug== 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=M/5eWAbEDQgOkiF6H06FGKZHT/EDb26p/JCBso4Tchw=; b=ngg/wXbq9ggyIs4ST+nZVvMAZcN7z5p9Wj5S/RdwP2h4KaIbrACQWltZPsFwFKZSVE 34ks/wjFKEDYcEMWiAG8eS/FAg8YBIG5Ft+Xx+AdzcwmbsSlpTg3NrhaIc7MibLDtAvt 7jrANIZuK+Z0s8nu/le1H8tNYgjEWy78AneSjUAG7GHTT1/Ev7mOWUm6i8F6IScQVu0i TF4yCEdjBQT+TV45/Y98FbBYxSoVavrYaUXjq/XCqHa7Rv1o5qFQwsKtetzEqPmPP6fO imYLGdQRvccmMvOASD1UVD5Ne0imSI5TLw9HNriGua0TfGbLMDlwKznMUwzZQeDQMMr2 hqeA== X-Gm-Message-State: AOAM531o0KIU0QO7jq9x8KbAIvgVHxSvonU8vRTpqPDbp5HTtGZxgzXS QYm2bJ4Ggf5saLmzL3dr2kc6WzkgJWY= X-Google-Smtp-Source: ABdhPJyoYG5YDMJT67BmAM16vft0/MgmMdJ09oTXgsuH1MNyBThmKV5NRHMl8mSRkrVyoySYFmRl/A== X-Received: by 2002:aa7:9f92:: with SMTP id z18mr8222689pfr.260.1598367518404; Tue, 25 Aug 2020 07:58:38 -0700 (PDT) Received: from bobo.ozlabs.ibm.com (61-68-212-105.tpgi.com.au. [61.68.212.105]) by smtp.gmail.com with ESMTPSA id e29sm15755956pfj.92.2020.08.25.07.58.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Aug 2020 07:58:38 -0700 (PDT) From: Nicholas Piggin To: linux-mm@kvack.org, Andrew Morton Subject: [PATCH v7 07/12] arm64: inline huge vmap supported functions Date: Wed, 26 Aug 2020 00:57:48 +1000 Message-Id: <20200825145753.529284-8-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200825145753.529284-1-npiggin@gmail.com> References: <20200825145753.529284-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Will Deacon , Catalin Marinas , linux-kernel@vger.kernel.org, Nicholas Piggin , Christoph Hellwig , Zefan Li , Jonathan Cameron , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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 Signed-off-by: Nicholas Piggin --- Ack or objection if this goes via the -mm tree? 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 9df7e0058c78..07093e148957 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1304,27 +1304,6 @@ 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)); @@ -1416,11 +1395,6 @@ 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