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| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-07-01 15:53:52 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-10 16:24:28 -0300 |
| commit | e478425bec930e9368c6efdc78d2e5d85eadc18e (patch) | |
| tree | 59e9ec45cd3976e7ed79d083b17e379e39e62628 /lib/test_hmm_uapi.h | |
| parent | 3b50a6e536d2d843857ffe5f923eff7be4222afe (diff) | |
| download | linux-e478425bec930e9368c6efdc78d2e5d85eadc18e.tar.gz linux-e478425bec930e9368c6efdc78d2e5d85eadc18e.tar.bz2 linux-e478425bec930e9368c6efdc78d2e5d85eadc18e.zip | |
mm/hmm: add tests for hmm_pfn_to_map_order()
Add a sanity test for hmm_range_fault() returning the page mapping size
order.
Link: https://lore.kernel.org/r/20200701225352.9649-6-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'lib/test_hmm_uapi.h')
| -rw-r--r-- | lib/test_hmm_uapi.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/test_hmm_uapi.h b/lib/test_hmm_uapi.h index 67b3b2e6ff5d..670b4ef2a5b6 100644 --- a/lib/test_hmm_uapi.h +++ b/lib/test_hmm_uapi.h @@ -40,6 +40,8 @@ struct hmm_dmirror_cmd { * HMM_DMIRROR_PROT_NONE: unpopulated PTE or PTE with no access * HMM_DMIRROR_PROT_READ: read-only PTE * HMM_DMIRROR_PROT_WRITE: read/write PTE + * HMM_DMIRROR_PROT_PMD: PMD sized page is fully mapped by same permissions + * HMM_DMIRROR_PROT_PUD: PUD sized page is fully mapped by same permissions * HMM_DMIRROR_PROT_ZERO: special read-only zero page * HMM_DMIRROR_PROT_DEV_PRIVATE_LOCAL: Migrated device private page on the * device the ioctl() is made @@ -51,6 +53,8 @@ enum { HMM_DMIRROR_PROT_NONE = 0x00, HMM_DMIRROR_PROT_READ = 0x01, HMM_DMIRROR_PROT_WRITE = 0x02, + HMM_DMIRROR_PROT_PMD = 0x04, + HMM_DMIRROR_PROT_PUD = 0x08, HMM_DMIRROR_PROT_ZERO = 0x10, HMM_DMIRROR_PROT_DEV_PRIVATE_LOCAL = 0x20, HMM_DMIRROR_PROT_DEV_PRIVATE_REMOTE = 0x30, |