@@ -6,7 +6,6 @@
config HABANA_AI
tristate "HabanaAI accelerators (habanalabs)"
depends on PCI && HAS_IOMEM
- select FRAME_VECTOR
select DMA_SHARED_BUFFER
select GENERIC_ALLOCATOR
select HWMON
@@ -881,7 +881,8 @@ 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;
@@ -1281,45 +1281,41 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size,
return -EFAULT;
}
- userptr->vec = frame_vector_create(npages);
- if (!userptr->vec) {
+ userptr->pages = kvmalloc_array(npages, sizeof(*userptr->pages),
+ GFP_KERNEL);
+ if (!userptr->pages) {
dev_err(hdev->dev, "Failed to create frame vector\n");
return -ENOMEM;
}
- rc = get_vaddr_frames(start, npages, FOLL_FORCE | FOLL_WRITE,
- userptr->vec);
+ rc = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE,
+ userptr->pages);
if (rc != npages) {
dev_err(hdev->dev,
"Failed to map host memory, user ptr probably wrong\n");
if (rc < 0)
- goto destroy_framevec;
+ goto destroy_pages;
+ npages = rc;
rc = -EFAULT;
- goto put_framevec;
- }
-
- if (frame_vector_to_pages(userptr->vec) < 0) {
- dev_err(hdev->dev,
- "Failed to translate frame vector to pages\n");
- rc = -EFAULT;
- goto put_framevec;
+ goto put_pages;
}
+ userptr->npages = npages;
rc = sg_alloc_table_from_pages(userptr->sgt,
- frame_vector_pages(userptr->vec),
- npages, offset, size, GFP_ATOMIC);
+ userptr->pages,
+ npages, offset, size, GFP_ATOMIC);
if (rc < 0) {
dev_err(hdev->dev, "failed to create SG table from pages\n");
- goto put_framevec;
+ goto put_pages;
}
return 0;
-put_framevec:
- put_vaddr_frames(userptr->vec);
-destroy_framevec:
- frame_vector_destroy(userptr->vec);
+put_pages:
+ unpin_user_pages(userptr->pages, npages);
+destroy_pages:
+ kvfree(userptr->pages);
return rc;
}
@@ -1405,7 +1401,7 @@ int hl_pin_host_memory(struct hl_device *hdev, u64 addr, u64 size,
*/
void hl_unpin_host_memory(struct hl_device *hdev, struct hl_userptr *userptr)
{
- struct page **pages;
+ int i;
hl_debugfs_remove_userptr(hdev, userptr);
@@ -1414,15 +1410,10 @@ void hl_unpin_host_memory(struct hl_device *hdev, struct hl_userptr *userptr)
userptr->sgt->nents,
userptr->dir);
- pages = frame_vector_pages(userptr->vec);
- if (!IS_ERR(pages)) {
- int i;
-
- for (i = 0; i < frame_vector_count(userptr->vec); i++)
- set_page_dirty_lock(pages[i]);
- }
- put_vaddr_frames(userptr->vec);
- frame_vector_destroy(userptr->vec);
+ for (i = 0; i < userptr->npages; i++)
+ set_page_dirty_lock(userptr->pages[i]);
+ unpin_user_pages(userptr->pages, userptr->npages);
+ kvfree(userptr->pages);
list_del(&userptr->job_node);
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. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> 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> --- drivers/misc/habanalabs/Kconfig | 1 - drivers/misc/habanalabs/common/habanalabs.h | 3 +- drivers/misc/habanalabs/common/memory.c | 51 +++++++++------------ 3 files changed, 23 insertions(+), 32 deletions(-)