Commit 65f7d049 authored by Oliver O'Halloran's avatar Oliver O'Halloran Committed by Michael Ellerman

mm, x86: Add ARCH_HAS_ZONE_DEVICE to Kconfig

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
Acked-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarBalbir Singh <bsingharora@gmail.com>
Signed-off-by: default avatarOliver O'Halloran <oohall@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 7a849a6c
...@@ -59,6 +59,7 @@ config X86 ...@@ -59,6 +59,7 @@ config X86
select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX select ARCH_HAS_STRICT_MODULE_RWX
select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_UBSAN_SANITIZE_ALL
select ARCH_HAS_ZONE_DEVICE if X86_64
select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_PARPORT
......
...@@ -683,12 +683,16 @@ config IDLE_PAGE_TRACKING ...@@ -683,12 +683,16 @@ config IDLE_PAGE_TRACKING
See Documentation/vm/idle_page_tracking.txt for more details. 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 config ZONE_DEVICE
bool "Device memory (pmem, etc...) hotplug support" bool "Device memory (pmem, etc...) hotplug support"
depends on MEMORY_HOTPLUG depends on MEMORY_HOTPLUG
depends on MEMORY_HOTREMOVE depends on MEMORY_HOTREMOVE
depends on SPARSEMEM_VMEMMAP depends on SPARSEMEM_VMEMMAP
depends on X86_64 #arch_add_memory() comprehends device memory depends on ARCH_HAS_ZONE_DEVICE
help help
Device memory hotplug support allows for establishing pmem, Device memory hotplug support allows for establishing pmem,
......
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