[PATCH] nouveau/svm: Fix to migrate all requested pages

[Ralph Campbell]

On 7/19/22 23:27, Alistair Popple wrote:

> Users may request that pages from an OpenCL SVM allocation be migrated
> to the GPU with clEnqueueSVMMigrateMem(). In Nouveau this will call into
> nouveau_dmem_migrate_vma() to do the migration. If the total range to be
> migrated exceeds SG_MAX_SINGLE_ALLOC the pages will be migrated in
> chunks of size SG_MAX_SINGLE_ALLOC. However a typo in updating the
> starting address means that only the first chunk will get migrated.
>
> Fix the calculation so that the entire range will get migrated if
> possible.
>
> Signed-off-by: Alistair Popple <apopple at nvidia.com>
> Fixes: e3d8b0890469 ("drm/nouveau/svm: map pages after migration")

Thanks for fixing this!
Reviewed-by: Ralph Campbell <rcampbell at nvidia.com>