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| author | Jérôme Glisse <jglisse@redhat.com> | 2017-09-09 02:11:23 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-09 04:26:45 +0300 |
| commit | 133ff0eac95b7dc6edf89dc51bd139a0630bbae7 (patch) | |
| tree | 89e803ee7511b95e2633a57d49218f75d7fc8fb0 /mm/Kconfig | |
| parent | bffc33ec539699f045a9254144de3d4eace05f07 (diff) | |
| download | linux-133ff0eac95b7dc6edf89dc51bd139a0630bbae7.tar.xz | |
mm/hmm: heterogeneous memory management (HMM for short)
HMM provides 3 separate types of functionality:
- Mirroring: synchronize CPU page table and device page table
- Device memory: allocating struct page for device memory
- Migration: migrating regular memory to device memory
This patch introduces some common helpers and definitions to all of
those 3 functionality.
Link: http://lkml.kernel.org/r/20170817000548.32038-3-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Evgeny Baskakov <ebaskakov@nvidia.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Mark Hairgrove <mhairgrove@nvidia.com>
Signed-off-by: Sherry Cheung <SCheung@nvidia.com>
Signed-off-by: Subhash Gutti <sgutti@nvidia.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Nellans <dnellans@nvidia.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Bob Liu <liubo95@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 9ef8c2ea92ad..037fa26d16a2 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -692,6 +692,19 @@ config ZONE_DEVICE If FS_DAX is enabled, then say Y. +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 HMM + bool + config FRAME_VECTOR bool |