From patchwork Wed Feb 1 09:13:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baoquan He X-Patchwork-Id: 13123989 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD7EFC636D4 for ; Wed, 1 Feb 2023 09:14:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4A69A6B0075; Wed, 1 Feb 2023 04:14:25 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 457026B0078; Wed, 1 Feb 2023 04:14:25 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 31F2E6B007B; Wed, 1 Feb 2023 04:14:25 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 24C0E6B0075 for ; Wed, 1 Feb 2023 04:14:25 -0500 (EST) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id C69F5120450 for ; Wed, 1 Feb 2023 09:14:24 +0000 (UTC) X-FDA: 80418162048.06.49E06FB Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf24.hostedemail.com (Postfix) with ESMTP id 1FCB4180004 for ; Wed, 1 Feb 2023 09:14:22 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=P8E1Iw1W; spf=pass (imf24.hostedemail.com: domain of bhe@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=bhe@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1675242863; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=lNZtN3K6Lqx2kVVKvoFNyaccpQbarea9cnt235tEpuI=; b=2XftWSag3AOxFG7D+YRIAm4JqWOUmhJLmuRRiXb827cM2sk2SmVvJmGw6ttbFnEvEEalE1 Hc0LofJqp/lZhjZZo8CUx1xVwV9hdCjkvOWn4kE7cByUWZTWVgss5JOAni9OZ04rm1xXEn A/ikk0ZHrwr8VzJGFkJ27RTNibNTlT4= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=P8E1Iw1W; spf=pass (imf24.hostedemail.com: domain of bhe@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=bhe@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1675242863; a=rsa-sha256; cv=none; b=kMkqzjXHjJNonG9irur0gMN9r07W80LmDJd0W0p55HJR0sT4fGxf3T3pleZkWX/vTk2xH5 LMRAepVR37dDjHjU9Mh8JkGjjaUvCH65lCQ3p0GZaNgSDgvkYC4Jr3dYwpxK/ooB0TfylB DjgPsA5gcPjDOgb6KZUF1h1MZFQHMf4= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1675242862; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lNZtN3K6Lqx2kVVKvoFNyaccpQbarea9cnt235tEpuI=; b=P8E1Iw1WfM0j/zlNhh1MzA6bBCZWhXmzGul8a6GcxbWBMa8huSWaaG3VHNGAoR5+WGwNNz /OjmTKgW+tNrvgNHt0DiuiSbhNeBUHyOP7dmV2ZnGCfqpV6GvLFhW/2L5lV7NqYYxSEaft We+3w26eg09vyvK+FMRgB3jBQaXKPMY= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-281-4ImjqBMNPVqQe_n0ixTitA-1; Wed, 01 Feb 2023 04:14:18 -0500 X-MC-Unique: 4ImjqBMNPVqQe_n0ixTitA-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8DE4B29AB3F4; Wed, 1 Feb 2023 09:14:17 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (ovpn-13-89.pek2.redhat.com [10.72.13.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id 23080492C3E; Wed, 1 Feb 2023 09:14:12 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, akpm@linux-foundation.org, stephen.s.brennan@oracle.com, urezki@gmail.com, lstoakes@gmail.com, willy@infradead.org, hch@infradead.org, error27@gmail.com, Baoquan He Subject: [PATCH v4 6/7] powerpc: mm: add VM_IOREMAP flag to the vmalloc area Date: Wed, 1 Feb 2023 17:13:38 +0800 Message-Id: <20230201091339.61761-7-bhe@redhat.com> In-Reply-To: <20230201091339.61761-1-bhe@redhat.com> References: <20230201091339.61761-1-bhe@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Rspam-User: X-Rspamd-Server: rspam03 X-Stat-Signature: 8oao56st9gzz7d1gjyjgo9csdybs6p87 X-Rspamd-Queue-Id: 1FCB4180004 X-HE-Tag: 1675242862-63995 X-HE-Meta: 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 ausci3zK 0pDsyNUePMwckVpmpFH7AhopmsU7iG4xsHSeFzhRu4DT4WAs/xaM/TZCbBC27UHPtmiMvLiFW2nMpoYvG05ySvwG8hBDfP4GStPU7ZGOK6qDLkEmxgc8b21CSzBkLPcbYe4kGXhNFQdlmN710WeyIqHd527QBen4EOquuz5wl7sT8MKOubXMsa+6s+jnhXo/x5aQRO1X1vHQE6PuGGSW6E7HtFV4xkJpxyl6ZdfnNrha3o4wD260rteH6cMXCmGCzuyFdjGlFUl2wZjY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Currently, for vmalloc areas with flag VM_IOREMAP set, except of the specific alignment clamping in __get_vm_area_node(), they will be 1) Shown as ioremap in /proc/vmallocinfo; 2) Ignored by /proc/kcore reading via vread() So for the io mapping in ioremap_phb() of ppc, we should set VM_IOREMAP in flag to make it handled correctly as above. Signed-off-by: Baoquan He Reviewed-by: Lorenzo Stoakes Reviewed-by: Uladzislau Rezki (Sony) --- arch/powerpc/kernel/pci_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 0c7cfb9fab04..fd42059ae2a5 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -132,7 +132,7 @@ void __iomem *ioremap_phb(phys_addr_t paddr, unsigned long size) * address decoding but I'd rather not deal with those outside of the * reserved 64K legacy region. */ - area = __get_vm_area_caller(size, 0, PHB_IO_BASE, PHB_IO_END, + area = __get_vm_area_caller(size, VM_IOREMAP, PHB_IO_BASE, PHB_IO_END, __builtin_return_address(0)); if (!area) return NULL;