From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756007AbdDMFR2 (ORCPT ); Thu, 13 Apr 2017 01:17:28 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:33607 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751375AbdDMFRZ (ORCPT ); Thu, 13 Apr 2017 01:17:25 -0400 From: "Oliver O'Halloran" To: linux-kernel@vger.kernel.org Cc: "Oliver O'Halloran" , linux-mm@kvack.org Subject: [PATCH v2] mm, x86: Add ARCH_HAS_ZONE_DEVICE to Kconfig Date: Thu, 13 Apr 2017 15:17:14 +1000 Message-Id: <20170413051714.25267-1-oohall@gmail.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170413021940.17649-1-oohall@gmail.com> References: <20170413021940.17649-1-oohall@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently ZONE_DEVICE depends on X86_64 and this will get unwieldly as new architectures (and platforms) get ZONE_DEVICE support. Move to an arch selected Kconfig option to save us the trouble. Cc: linux-mm@kvack.org Signed-off-by: Oliver O'Halloran --- v2: add missing hunk --- arch/x86/Kconfig | 1 + mm/Kconfig | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c43f47622440..535b4d514792 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -59,6 +59,7 @@ config X86 select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX select ARCH_HAS_UBSAN_SANITIZE_ALL + select ARCH_HAS_ZONE_DEVICE if X86_64 select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select ARCH_MIGHT_HAVE_PC_PARPORT diff --git a/mm/Kconfig b/mm/Kconfig index c89f472b658c..392bf8d7574c 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -684,12 +684,16 @@ config IDLE_PAGE_TRACKING See Documentation/vm/idle_page_tracking.txt for more details. +# arch_add_memory() comprehends device memory +config ARCH_HAS_ZONE_DEVICE + bool + config ZONE_DEVICE bool "Device memory (pmem, etc...) hotplug support" depends on MEMORY_HOTPLUG depends on MEMORY_HOTREMOVE depends on SPARSEMEM_VMEMMAP - depends on X86_64 #arch_add_memory() comprehends device memory + depends on ARCH_HAS_ZONE_DEVICE help Device memory hotplug support allows for establishing pmem, -- 2.9.3