diff options
| author | Robin Murphy <[email protected]> | 2019-07-16 16:30:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-07-16 19:23:25 -0700 |
| commit | 73b20c84d42de14673a987816dd4d132c7b1f801 (patch) | |
| tree | a3a6e4eb90859547043402dea2129677b9dd1134 /scripts/gcc-plugins/sancov_plugin.c | |
| parent | 175967318c3018d01931ac950c82adab5deb47ca (diff) | |
arm64: mm: implement pte_devmap support
In order for things like get_user_pages() to work on ZONE_DEVICE memory,
we need a software PTE bit to identify device-backed PFNs. Hook this up
along with the relevant helpers to join in with ARCH_HAS_PTE_DEVMAP.
[[email protected]: build fixes]
Link: http://lkml.kernel.org/r/13026c4e64abc17133bbfa07d7731ec6691c0bcd.1559050949.git.robin.murphy@arm.com
Link: http://lkml.kernel.org/r/817d92886fc3b33bcbf6e105ee83a74babb3a5aa.1558547956.git.robin.murphy@arm.com
Signed-off-by: Robin Murphy <[email protected]>
Acked-by: Will Deacon <[email protected]>
Cc: Anshuman Khandual <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc: Jerome Glisse <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Oliver O'Halloran <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/sancov_plugin.c')
0 files changed, 0 insertions, 0 deletions