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,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, URIBL_RED autolearn=ham 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 76C3EC433B4 for ; Fri, 16 Apr 2021 18:48:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 525DE6137D for ; Fri, 16 Apr 2021 18:48:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235522AbhDPStP (ORCPT ); Fri, 16 Apr 2021 14:49:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:53500 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235693AbhDPStA (ORCPT ); Fri, 16 Apr 2021 14:49:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A67B86137D; Fri, 16 Apr 2021 18:48:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1618598912; bh=TtUDkj1lzJItT1DtJgRl8xD3wwOjI5dDKCmqeWlQ3r4=; h=Date:From:To:Subject:From; b=VakhGLKhBGP406FTZk5sdz/A+F83tHSb2X5cxPP+RtWII/4WxV6QP5glWtiL2FpLY fXXeO9YRPEWabQMR/dckRxIVslEtDGzoZBqL8zE5OESdDOlXLQyi7IrBJi3tL68lRP R68fqe91sJx36j/HshWOCszc1Z8of1Abxo/6QVmc= Date: Fri, 16 Apr 2021 11:48:32 -0700 From: akpm@linux-foundation.org To: mm-commits@vger.kernel.org, vbabka@suse.cz, pasha.tatashin@soleen.com, mhocko@suse.com, mhocko@kernel.org, david@redhat.com, anshuman.khandual@arm.com, osalvador@suse.de Subject: + acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch added to -mm tree Message-ID: <20210416184832.XMVaD%akpm@linux-foundation.org> User-Agent: s-nail v14.9.10 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: acpi,memhotplug: enable MHP_MEMMAP_ON_MEMORY when supported has been added to the -mm tree. Its filename is acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Oscar Salvador Subject: acpi,memhotplug: enable MHP_MEMMAP_ON_MEMORY when supported Let the caller check whether it can pass MHP_MEMMAP_ON_MEMORY by checking mhp_supports_memmap_on_memory(). MHP_MEMMAP_ON_MEMORY can only be set in case ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE is enabled, the architecture supports altmap, and the range to be added spans a single memory block. Link: https://lkml.kernel.org/r/20210416112411.9826-6-osalvador@suse.de Signed-off-by: Oscar Salvador Reviewed-by: David Hildenbrand Acked-by: Michal Hocko Cc: Anshuman Khandual Cc: Michal Hocko Cc: Pavel Tatashin Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- drivers/acpi/acpi_memhotplug.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/acpi/acpi_memhotplug.c~acpimemhotplug-enable-mhp_memmap_on_memory-when-supported +++ a/drivers/acpi/acpi_memhotplug.c @@ -171,6 +171,7 @@ static int acpi_memory_enable_device(str acpi_handle handle = mem_device->device->handle; int result, num_enabled = 0; struct acpi_memory_info *info; + mhp_t mhp_flags = MHP_NONE; int node; node = acpi_get_node(handle); @@ -194,8 +195,10 @@ static int acpi_memory_enable_device(str if (node < 0) node = memory_add_physaddr_to_nid(info->start_addr); + if (mhp_supports_memmap_on_memory(info->length)) + mhp_flags |= MHP_MEMMAP_ON_MEMORY; result = __add_memory(node, info->start_addr, info->length, - MHP_NONE); + mhp_flags); /* * If the memory block has been used by the kernel, add_memory() _ Patches currently in -mm which might be from osalvador@suse.de are x86-vmemmap-drop-handling-of-4k-unaligned-vmemmap-range.patch x86-vmemmap-drop-handling-of-1gb-vmemmap-ranges.patch x86-vmemmap-handle-unpopulated-sub-pmd-ranges.patch x86-vmemmap-handle-unpopulated-sub-pmd-ranges-fix.patch x86-vmemmap-optimize-for-consecutive-sections-in-partial-populated-pmds.patch drivers-base-memory-introduce-memory_block_onlineoffline.patch mmmemory_hotplug-relax-fully-spanned-sections-check.patch mmmemory_hotplug-allocate-memmap-from-the-added-memory-range.patch acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch mmmemory_hotplug-add-kernel-boot-option-to-enable-memmap_on_memory.patch x86-kconfig-introduce-arch_mhp_memmap_on_memory_enable.patch arm64-kconfig-introduce-arch_mhp_memmap_on_memory_enable.patch