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Diffstat (limited to 'Documentation/gpu/drm-kms.rst')
| -rw-r--r-- | Documentation/gpu/drm-kms.rst | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst index b4377a545425..2292e65f044c 100644 --- a/Documentation/gpu/drm-kms.rst +++ b/Documentation/gpu/drm-kms.rst @@ -66,11 +66,11 @@ Composition Properties`_ and related chapters. For the output routing the first step is encoders (represented by :c:type:`struct drm_encoder <drm_encoder>`, see `Encoder Abstraction`_). Those are really just internal artifacts of the helper libraries used to implement KMS -drivers. Besides that they make it unecessarily more complicated for userspace +drivers. Besides that they make it unnecessarily more complicated for userspace to figure out which connections between a CRTC and a connector are possible, and what kind of cloning is supported, they serve no purpose in the userspace API. Unfortunately encoders have been exposed to userspace, hence can't remove them -at this point. Futhermore the exposed restrictions are often wrongly set by +at this point. Furthermore the exposed restrictions are often wrongly set by drivers, and in many cases not powerful enough to express the real restrictions. A CRTC can be connected to multiple encoders, and for an active CRTC there must be at least one encoder. @@ -260,7 +260,7 @@ Taken all together there's two consequences for the atomic design: drm_crtc_state <drm_crtc_state>` for CRTCs and :c:type:`struct drm_connector_state <drm_connector_state>` for connectors. These are the only objects with userspace-visible and settable state. For internal state drivers - can subclass these structures through embeddeding, or add entirely new state + can subclass these structures through embedding, or add entirely new state structures for their globally shared hardware functions, see :c:type:`struct drm_private_state<drm_private_state>`. @@ -360,6 +360,8 @@ Format Functions Reference .. kernel-doc:: drivers/gpu/drm/drm_fourcc.c :export: +.. _kms_dumb_buffer_objects: + Dumb Buffer Objects =================== @@ -396,6 +398,36 @@ Plane Damage Tracking Functions Reference .. kernel-doc:: include/drm/drm_damage_helper.h :internal: +Plane Panic Feature +------------------- + +.. kernel-doc:: drivers/gpu/drm/drm_panic.c + :doc: overview + +Plane Panic Functions Reference +------------------------------- + +.. kernel-doc:: include/drm/drm_panic.h + :internal: + +.. kernel-doc:: drivers/gpu/drm/drm_panic.c + :export: + +Colorop Abstraction +=================== + +.. kernel-doc:: drivers/gpu/drm/drm_colorop.c + :doc: overview + +Colorop Functions Reference +--------------------------- + +.. kernel-doc:: include/drm/drm_colorop.h + :internal: + +.. kernel-doc:: drivers/gpu/drm/drm_colorop.c + :export: + Display Modes Function Reference ================================ @@ -494,6 +526,13 @@ addition to the one mentioned above: * An IGT test must be submitted where reasonable. +For historical reasons, non-standard, driver-specific properties exist. If a KMS +driver wants to add support for one of those properties, the requirements for +new properties apply where possible. Additionally, the documented behavior must +match the de facto semantics of the existing property to ensure compatibility. +Developers of the driver that first added the property should help with those +tasks and must ACK the documented behavior if possible. + Property Types and Blob Property Support ---------------------------------------- @@ -520,6 +559,12 @@ HDMI Specific Connector Properties .. kernel-doc:: drivers/gpu/drm/drm_connector.c :doc: HDMI connector properties +Analog TV Specific Connector Properties +--------------------------------------- + +.. kernel-doc:: drivers/gpu/drm/drm_connector.c + :doc: Analog TV Connector Properties + Standard CRTC Properties ------------------------ @@ -540,6 +585,8 @@ Plane Composition Properties .. kernel-doc:: drivers/gpu/drm/drm_blend.c :doc: overview +.. _damage_tracking_properties: + Damage Tracking Properties -------------------------- @@ -571,6 +618,12 @@ Variable Refresh Properties .. kernel-doc:: drivers/gpu/drm/drm_connector.c :doc: Variable refresh properties +Cursor Hotspot Properties +--------------------------- + +.. kernel-doc:: drivers/gpu/drm/drm_plane.c + :doc: hotspot properties + Existing KMS Properties ----------------------- |