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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-02-10 16:27:24 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-02-10 16:27:24 +0100 |
| commit | 51a831a7725b1273381cb4a9f3f0d619276e3521 (patch) | |
| tree | 9ba8c84b99e828b8e40e08df22c23712bb13f8c0 /Documentation/gpu | |
| parent | 4f4631af8faf791a60264cf028a16d61804414c8 (diff) | |
| parent | 13f62f54d174d3417c3caaafedf5e22a0a03e442 (diff) | |
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Chris Wilson needs the new drm_driver->release callback to make sure
the shiny new dma-buf testcases don't oops the driver on unload.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/drm-mm.rst | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst index 91d82f39fbf4..f5760b140f13 100644 --- a/Documentation/gpu/drm-mm.rst +++ b/Documentation/gpu/drm-mm.rst @@ -291,10 +291,17 @@ To use :c:func:`drm_gem_mmap()`, drivers must fill the struct :c:type:`struct drm_driver <drm_driver>` gem_vm_ops field with a pointer to VM operations. -struct vm_operations_struct \*gem_vm_ops struct -vm_operations_struct { void (\*open)(struct vm_area_struct \* area); -void (\*close)(struct vm_area_struct \* area); int (\*fault)(struct -vm_area_struct \*vma, struct vm_fault \*vmf); }; +The VM operations is a :c:type:`struct vm_operations_struct <vm_operations_struct>` +made up of several fields, the more interesting ones being: + +.. code-block:: c + + struct vm_operations_struct { + void (*open)(struct vm_area_struct * area); + void (*close)(struct vm_area_struct * area); + int (*fault)(struct vm_fault *vmf); + }; + The open and close operations must update the GEM object reference count. Drivers can use the :c:func:`drm_gem_vm_open()` and |