From: Jérôme Glisse <jglisse@xxxxxxxxxx> 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 <jglisse@xxxxxxxxxx> Cc: Leon Romanovsky <leonro@xxxxxxxxxxxx> Cc: Jason Gunthorpe <jgg@xxxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Ralph Campbell <rcampbell@xxxxxxxxxx> Cc: John Hubbard <jhubbard@xxxxxxxxxx> --- 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
