On 5/31/21 2:19 PM, Thomas Hellström wrote:
From: Maarten Lankhorst <maarten.lankho...@linux.intel.com>

Use the ttm handlers for servicing page faults, and vm_access.

We do our own validation of read-only access, otherwise use the
ttm handlers as much as possible.

Because the ttm handlers expect the vma_node at vma->base, we slightly
need to massage the mmap handlers to look at vma_node->driver_private
to fetch the bo, if it's NULL, we assume i915's normal mmap_offset uapi
is used.

This is the easiest way to achieve compatibility without changing ttm's
semantics.

Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>

Reviewed-by: Thomas Hellström <thomas.hellst...@linux.intel.com>


Reply via email to