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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-02-10 16:27:24 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-02-10 16:27:24 +0100
commit51a831a7725b1273381cb4a9f3f0d619276e3521 (patch)
tree9ba8c84b99e828b8e40e08df22c23712bb13f8c0 /Documentation/gpu
parentdrm/i915/byt: Take powerwell for reading PIPESTAT in debugfs (diff)
parentMerge branch 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux int... (diff)
downloadlinux-51a831a7725b1273381cb4a9f3f0d619276e3521.tar.xz
linux-51a831a7725b1273381cb4a9f3f0d619276e3521.zip
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.rst15
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