diff options
| author | Oliver O'Halloran <oohall@gmail.com> | 2017-06-28 11:32:31 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-02 20:40:26 +1000 |
| commit | 65f7d049788763969180c72ef98dab8bf0340c55 (patch) | |
| tree | f53c38c22b3dff69a7d010e08091f184552d0e19 | |
| parent | 7a849a6cf3ff676d1726259c18fa413f9e0c62a3 (diff) | |
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: Ingo Molnar <mingo@kernel.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | mm/Kconfig | 6 |
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4ccfacc7232a..32903e30e347 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 beb7a455915d..790e52a8a486 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -683,12 +683,16 @@ 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, |