tools: add hmm gup tests for device coherent type
The intention is to test hmm device coherent type under different get user pages paths. Also, test gup with FOLL_LONGTERM flag set in device coherent pages. These pages should get migrated back to system memory. Link: https://lkml.kernel.org/r/20220715150521.18165-14-alex.sierra@amd.com Signed-off-by:Alex Sierra <alex.sierra@amd.com> Reviewed-by:
Alistair Popple <apopple@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: David Hildenbrand <david@redhat.com> Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
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