diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-03-16 22:32:14 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-26 20:33:38 +0300 |
| commit | 800bb1c8dc80bb4121446b56813067f3ea44edee (patch) | |
| tree | 8ed199bf4aac9982b7863d71c0448742769f1a63 /drivers | |
| parent | f894ddd5ff01d3bb48faf4dc533536bf5269c17a (diff) | |
| download | linux-800bb1c8dc80bb4121446b56813067f3ea44edee.tar.xz | |
mm: handle multiple owners of device private pages in migrate_vma
Add a new src_owner field to struct migrate_vma. If the field is set,
only device private pages with page->pgmap->owner equal to that field are
migrated. If the field is not set only "normal" pages are migrated.
Fixes: df6ad69838fc ("mm/device-public-memory: device memory cache coherent with CPU")
Link: https://lore.kernel.org/r/20200316193216.920734-3-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Tested-by: Bharata B Rao <bharata@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dmem.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c index a4682272586e..0e36345d395c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dmem.c +++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c @@ -176,6 +176,7 @@ static vm_fault_t nouveau_dmem_migrate_to_ram(struct vm_fault *vmf) .end = vmf->address + PAGE_SIZE, .src = &src, .dst = &dst, + .src_owner = drm->dev, }; /* |