diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2020-11-27 17:41:17 +0100 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-01-12 14:14:53 +0100 |
commit | d4cb19250aae16ab3031b9e59458932e5afe8081 (patch) | |
tree | 99db7c98e17ee4e65fe3b06964a79282471ec366 /drivers/misc/habanalabs/common/habanalabs.h | |
parent | 9fcac0f1efea0c0dbbed78de7ce62159a544a3df (diff) |
misc/habana: Stop using frame_vector helpers
All we need are a pages array, pin_user_pages_fast can give us that
directly. Plus this avoids the entire raw pfn side of get_vaddr_frames.
Note that pin_user_pages_fast is a safe replacement despite the
seeming lack of checking for vma->vm_flasg & (VM_IO | VM_PFNMAP). Such
ptes are marked with pte_mkspecial (which pup_fast rejects in the
fastpath), and only architectures supporting that support the
pin_user_pages_fast fastpath.
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-mm@kvack.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Omer Shpigelman <oshpigelman@habana.ai>
Cc: Ofir Bitton <obitton@habana.ai>
Cc: Tomer Tayar <ttayar@habana.ai>
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Pawel Piskorski <ppiskorski@habana.ai>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201127164131.2244124-4-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/misc/habanalabs/common/habanalabs.h')
-rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index e0d7f5fbaa5c..3ef1c7337adc 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -1089,7 +1089,8 @@ struct hl_ctx_mgr { * struct hl_userptr - memory mapping chunk information * @vm_type: type of the VM. * @job_node: linked-list node for hanging the object on the Job's list. - * @vec: pointer to the frame vector. + * @pages: pointer to struct page array + * @npages: size of @pages array * @sgt: pointer to the scatter-gather table that holds the pages. * @dir: for DMA unmapping, the direction must be supplied, so save it. * @debugfs_list: node in debugfs list of command submissions. @@ -1100,7 +1101,8 @@ struct hl_ctx_mgr { struct hl_userptr { enum vm_type_t vm_type; /* must be first */ struct list_head job_node; - struct frame_vector *vec; + struct page **pages; + unsigned int npages; struct sg_table *sgt; enum dma_data_direction dir; struct list_head debugfs_list; |