nouveau/hmm: support mapping large sysmem pages

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Nouveau currently only supports mapping PAGE_SIZE sized pages of system
memory when shared virtual memory (SVM) is enabled. Use the new
hmm_pfn_to_map_order() function to support mapping system memory pages
that are PMD_SIZE.

Link: https://lore.kernel.org/r/20200701225352.9649-5-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Ralph Campbell 2020-07-01 15:53:51 -07:00 • committed by Jason Gunthorpe

parent 4725c6b82a

commit b223555dc4

1 changed files with 40 additions and 13 deletions

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drivers/gpu/drm/nouveau/nouveau_svm.c

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