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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 AC044C10F13 for ; Thu, 11 Apr 2019 18:03:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 751D420850 for ; Thu, 11 Apr 2019 18:03:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726690AbfDKSDf (ORCPT ); Thu, 11 Apr 2019 14:03:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50606 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726585AbfDKSDe (ORCPT ); Thu, 11 Apr 2019 14:03:34 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C43581219B9; Thu, 11 Apr 2019 18:03:30 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.20.6.236]) by smtp.corp.redhat.com (Postfix) with ESMTP id E94405D9C4; Thu, 11 Apr 2019 18:03:28 +0000 (UTC) From: jglisse@redhat.com To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Leon Romanovsky , Jason Gunthorpe , Andrew Morton , Ralph Campbell , John Hubbard Subject: [PATCH] mm/hmm: kconfig split HMM address space mirroring from device memory Date: Thu, 11 Apr 2019 14:03:26 -0400 Message-Id: <20190411180326.18958-1-jglisse@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 11 Apr 2019 18:03:34 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jérôme Glisse To allow building device driver that only care about address space mirroring (like RDMA ODP) on platform that do not have all the pre- requisite for HMM device memory (like ZONE_DEVICE on ARM) split the HMM_MIRROR option dependency from the HMM_DEVICE dependency. Signed-off-by: Jérôme Glisse Cc: Leon Romanovsky Cc: Jason Gunthorpe Cc: Andrew Morton Cc: Ralph Campbell Cc: John Hubbard --- mm/Kconfig | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/mm/Kconfig b/mm/Kconfig index 2e6d24d783f7..00d9febbc775 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -679,12 +679,13 @@ config ZONE_DEVICE config ARCH_HAS_HMM bool default y - depends on (X86_64 || PPC64) - depends on ZONE_DEVICE depends on MMU && 64BIT - depends on MEMORY_HOTPLUG - depends on MEMORY_HOTREMOVE - depends on SPARSEMEM_VMEMMAP + +config ARCH_HAS_HMM_DEVICE + bool + default y + depends on (X86_64 || PPC64) + depends on ARCH_HAS_ZONE_DEVICE config MIGRATE_VMA_HELPER bool @@ -710,7 +711,8 @@ config HMM_MIRROR config DEVICE_PRIVATE bool "Unaddressable device memory (GPU memory, ...)" - depends on ARCH_HAS_HMM + depends on ARCH_HAS_HMM_DEVICE + depends on ZONE_DEVICE select HMM select DEV_PAGEMAP_OPS @@ -721,7 +723,8 @@ config DEVICE_PRIVATE config DEVICE_PUBLIC bool "Addressable device memory (like GPU memory)" - depends on ARCH_HAS_HMM + depends on ARCH_HAS_HMM_DEVICE + depends on ZONE_DEVICE select HMM select DEV_PAGEMAP_OPS -- 2.20.1