nouveau: simplify nouveau_dmem_migrate_vma

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Factor the main copy page to vram routine out into a helper that acts
on a single page and which doesn't require the nouveau_dmem_migrate
structure for argument passing.  As an added benefit the new version
only allocates the dma address array once and reuses it for each
subsequent chunk of work.

Link: https://lore.kernel.org/r/20190814075928.23766-8-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Christoph Hellwig 2019-08-14 09:59:25 +02:00 • committed by Jason Gunthorpe

parent bfe69ef94a

commit f268307ec7

1 changed files with 55 additions and 129 deletions

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drivers/gpu/drm/nouveau/nouveau_dmem.c

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