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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 A8A82C56202 for ; Thu, 26 Nov 2020 12:34:50 +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 D2C8020B80 for ; Thu, 26 Nov 2020 12:34:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="d8ikFQ5g" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D2C8020B80 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org 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 4Chcdz6qHxzDqnR for ; Thu, 26 Nov 2020 23:34:47 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=infradead.org (client-ip=2001:8b0:10b:1231::1; helo=merlin.infradead.org; envelope-from=peterz@infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=merlin.20170209 header.b=d8ikFQ5g; dkim-atps=neutral Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) (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 4Chc7v48bjzDrCv for ; Thu, 26 Nov 2020 23:12:11 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=rpbquXH+0OLb9Ygx9Cjnl4wM8Crhm2/za8S9KIMZWMw=; b=d8ikFQ5g9M8lBrRxWBmLTEkJDp VtICYG1lRvUYUCUKr1BN1rH5eaPykQr9wx7UdLxj1LfOfrqIjYl0Z5jFvOSUB/ghUdKTpO11zcGbT utQNSFHw4QUryo41ulTed+h+zQ+gzYo258idCY/G3jxQlzPYgTtrfO+eD8SpMXj8iZHHqRgU+cKsS k4AvReMGVW4kp01jhyYq9tbgf0FxvTgPRuYjicUbVV7F8pT2jjLgS8nw2A4OqvrluwdX2dx7g35Du qe5qc5fulD1C/pVIjenroQAKrK9p1+mC7ZGz2zBi0c0XKnkzKrRPwRGEzaZyz6teVOCMNtiSmwX28 qk8lisXw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kiG7c-0006M3-SX; Thu, 26 Nov 2020 12:11:37 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 1BDE43059DE; Thu, 26 Nov 2020 13:11:34 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 003CE2D167BE7; Thu, 26 Nov 2020 13:11:33 +0100 (CET) Message-ID: <20201126121121.226210959@infradead.org> User-Agent: quilt/0.66 Date: Thu, 26 Nov 2020 13:01:18 +0100 From: Peter Zijlstra To: kan.liang@linux.intel.com, mingo@kernel.org, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, eranian@google.com Subject: [PATCH v2 4/6] arm64/mm: Implement pXX_leaf_size() support References: <20201126120114.071913521@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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, ak@linux.intel.com, catalin.marinas@arm.com, peterz@infradead.org, linuxppc-dev@lists.ozlabs.org, willy@infradead.org, linux-kernel@vger.kernel.org, dave.hansen@intel.com, npiggin@gmail.com, aneesh.kumar@linux.ibm.com, sparclinux@vger.kernel.org, will@kernel.org, davem@davemloft.net, kirill.shutemov@linux.intel.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" ARM64 has non-pagetable aligned large page support with PTE_CONT, when this bit is set the page is part of a super-page. Match the hugetlb code and support these super pages for PTE and PMD levels. This enables PERF_SAMPLE_{DATA,CODE}_PAGE_SIZE to report accurate pagetable leaf sizes. Signed-off-by: Peter Zijlstra (Intel) --- arch/arm64/include/asm/pgtable.h | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -503,6 +503,9 @@ extern pgprot_t phys_mem_access_prot(str PMD_TYPE_SECT) #define pmd_leaf(pmd) pmd_sect(pmd) +#define pmd_leaf_size(pmd) (pmd_cont(pmd) ? CONT_PMD_SIZE : PMD_SIZE) +#define pte_leaf_size(pte) (pte_cont(pte) ? CONT_PTE_SIZE : PAGE_SIZE) + #if defined(CONFIG_ARM64_64K_PAGES) || CONFIG_PGTABLE_LEVELS < 3 static inline bool pud_sect(pud_t pud) { return false; } static inline bool pud_table(pud_t pud) { return true; }