The migrate_vma helper is only used by noveau to migrate device private
pages around. Other HMM_MIRROR users like amdgpu or infiniband don't
need it.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Dan Williams <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
depends on DRM_NOUVEAU
depends on HMM_MIRROR
depends on STAGING
+ select MIGRATE_VMA_HELPER
default n
help
Say Y here if you want to enable experimental support for
depends on (X86_64 || PPC64)
depends on MMU && 64BIT
select MMU_NOTIFIER
- select MIGRATE_VMA_HELPER
help
Select HMM_MIRROR if you want to mirror range of the CPU page table of a
process into a device page table. Here, mirror means "keep synchronized".