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| author | Oliver O'Halloran | 2017-06-28 03:32:33 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2017-07-02 12:40:27 +0200 |
| commit | b584c2544041707ea041748dbfbb1081289c6cf5 (patch) | |
| tree | d3b0f56dbf44a9194740c402a4f648feb5844cca /Kconfig | |
| parent | powerpc/vmemmap: Reshuffle vmemmap_free() (diff) | |
| download | kernel-qcow2-linux-b584c2544041707ea041748dbfbb1081289c6cf5.tar.gz kernel-qcow2-linux-b584c2544041707ea041748dbfbb1081289c6cf5.tar.xz kernel-qcow2-linux-b584c2544041707ea041748dbfbb1081289c6cf5.zip | |
powerpc/vmemmap: Add altmap support
Adds support to powerpc for the altmap feature of ZONE_DEVICE memory. An
altmap is a driver provided region that is used to provide the backing
storage for the struct pages of ZONE_DEVICE memory. In situations where
large amount of ZONE_DEVICE memory is being added to the system the
altmap reduces pressure on main system memory by allowing the mm/
metadata to be stored on the device itself rather in main memory.
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions