On 10/7/20 9:44 AM, Daniel Vetter wrote:
These are persistent, not just for the duration of a dma operation.Signed-off-by: Daniel Vetter <daniel.vet...@intel.com> Cc: Jason Gunthorpe <j...@ziepe.ca> Cc: Andrew Morton <a...@linux-foundation.org> Cc: John Hubbard <jhubb...@nvidia.com> Cc: Jérôme Glisse <jgli...@redhat.com> Cc: Jan Kara <j...@suse.cz> Cc: Dan Williams <dan.j.willi...@intel.com> Cc: linux...@kvack.org Cc: linux-arm-ker...@lists.infradead.org Cc: linux-samsung-...@vger.kernel.org Cc: linux-me...@vger.kernel.org Cc: Oded Gabbay <oded.gab...@gmail.com> Cc: Omer Shpigelman <oshpigel...@habana.ai> Cc: Ofir Bitton <obit...@habana.ai> Cc: Tomer Tayar <tta...@habana.ai> Cc: Moti Haimovski <mhaimov...@habana.ai> Cc: Daniel Vetter <daniel.vet...@ffwll.ch> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> Cc: Pawel Piskorski <ppiskor...@habana.ai> --- drivers/misc/habanalabs/common/memory.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index ef89cfa2f95a..94bef8faa82a 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -1288,7 +1288,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size, return -ENOMEM; }- rc = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE,+ rc = pin_user_pages_fast(start, npages, + FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM, userptr->pages);if (rc != npages) {
Again, from a pin_user_pages_fast() point of view, and not being at all familiar with the habana driver (but their use of this really does seem clearly _LONGTERM!): Reviewed-by: John Hubbard <jhubb...@nvidia.com> thanks, -- John Hubbard NVIDIA
