From: Daniel Vetter Date: Tue, 31 May 2016 21:11:10 +0000 (+0200) Subject: drm/doc: Update kerneldoc for drm_crtc.h X-Git-Tag: v4.8-rc1~62^2~42^2~23 X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=ac3ba4a5968e4a009898504926220395c44f5ecb;p=cascardo%2Flinux.git drm/doc: Update kerneldoc for drm_crtc.h Apparently not everyone has been super dutiful with updating this stuff. I still decided to leave out the documentation for all the *_property pointers we have in drm_mode_config. v2: Feedback from Liviu. Acked-by: Liviu Dudau Acked-by: Jani Nikula Signed-off-by: Daniel Vetter --- diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index e690021ce4cc..f59d8a2d8920 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -314,6 +314,7 @@ struct drm_plane_helper_funcs; * update to ensure framebuffer cleanup isn't done too early * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings * @mode: current mode timings + * @mode_blob: &drm_property_blob for @mode * @degamma_lut: Lookup table for converting framebuffer pixel data * before apply the conversion matrix * @ctm: Transformation matrix @@ -708,6 +709,7 @@ struct drm_crtc_funcs { * @dev: parent DRM device * @port: OF node used by drm_of_find_possible_crtcs() * @head: list management + * @name: human readable name, can be overwritten by the driver * @mutex: per-CRTC locking * @base: base KMS object for ID tracking etc. * @primary: primary plane for this CRTC @@ -738,12 +740,13 @@ struct drm_crtc { char *name; - /* - * crtc mutex + /** + * @mutex: * * This provides a read lock for the overall crtc state (mode, dpms * state, ...) and a write lock for everything which can be update - * without a full modeset (fb, cursor data, ...) + * without a full modeset (fb, cursor data, crtc properties ...). Full + * modeset also need to grab dev->mode_config.connection_mutex. */ struct drm_modeset_lock mutex; @@ -1081,7 +1084,7 @@ struct drm_encoder_funcs { * @dev: parent DRM device * @head: list management * @base: base KMS object - * @name: encoder name + * @name: human readable name, can be overwritten by the driver * @encoder_type: one of the %DRM_MODE_ENCODER_ types in drm_mode.h * @possible_crtcs: bitmask of potential CRTC bindings * @possible_clones: bitmask of potential sibling encoders for cloning @@ -1131,7 +1134,8 @@ struct drm_encoder { * @attr: sysfs attributes * @head: list management * @base: base KMS object - * @name: connector name + * @name: human readable name, can be overwritten by the driver + * @connector_id: compacted connector id useful indexing arrays * @connector_type: one of the %DRM_MODE_CONNECTOR_ types from drm_mode.h * @connector_type_id: index into connector type enum * @interlace_allowed: can this connector handle interlaced modes? @@ -1144,7 +1148,6 @@ struct drm_encoder { * @funcs: connector control functions * @edid_blob_ptr: DRM property containing EDID if present * @properties: property tracking for this connector - * @path_blob_ptr: DRM blob property data for the DP MST path property * @polled: a %DRM_CONNECTOR_POLL_ value for core driven polling * @dpms: current dpms state * @helper_private: mid-layer private data @@ -1207,8 +1210,23 @@ struct drm_connector { struct drm_property_blob *edid_blob_ptr; struct drm_object_properties properties; + /** + * @path_blob_ptr: + * + * DRM blob property data for the DP MST path property. + */ struct drm_property_blob *path_blob_ptr; + /** + * @tile_blob_ptr: + * + * DRM blob property data for the tile property (used mostly by DP MST). + * This is meant for screens which are driven through separate display + * pipelines represented by &drm_crtc, which might not be running with + * genlocked clocks. For tiled panels which are genlocked, like + * dual-link LVDS or dual-link DSI, the driver should try to not expose + * the tiling and virtualize both &drm_crtc and &drm_plane if needed. + */ struct drm_property_blob *tile_blob_ptr; uint8_t polled; /* DRM_CONNECTOR_POLL_* */ @@ -1270,6 +1288,7 @@ struct drm_connector { * plane (in 16.16) * @src_w: width of visible portion of plane (in 16.16) * @src_h: height of visible portion of plane (in 16.16) + * @rotation: rotation of the plane * @state: backpointer to global drm_atomic_state */ struct drm_plane_state { @@ -1510,6 +1529,7 @@ enum drm_plane_type { * struct drm_plane - central DRM plane control structure * @dev: DRM device this plane belongs to * @head: for list management + * @name: human readable name, can be overwritten by the driver * @base: base mode object * @possible_crtcs: pipes this plane can be bound to * @format_types: array of formats supported by this plane @@ -1523,6 +1543,7 @@ enum drm_plane_type { * @properties: property tracking for this plane * @type: type of plane (overlay, primary, cursor) * @state: current atomic state for this plane + * @helper_private: mid-layer private data */ struct drm_plane { struct drm_device *dev; @@ -1530,6 +1551,13 @@ struct drm_plane { char *name; + /** + * @mutex: + * + * Protects modeset plane state, together with the mutex of &drm_crtc + * this plane is linked to (when active, getting actived or getting + * disabled). + */ struct drm_modeset_lock mutex; struct drm_mode_object base; @@ -1726,7 +1754,6 @@ struct __drm_connnectors_state { * @legacy_set_config: Disable conflicting encoders instead of failing with -EINVAL. * @planes: pointer to array of structures with per-plane data * @crtcs: pointer to array of CRTC pointers - * @crtc_states: pointer to array of CRTC states pointers * @num_connector: size of the @connectors and @connector_states arrays * @connectors: pointer to array of structures with per-connector data * @acquire_ctx: acquire context for this atomic modeset state update @@ -2042,8 +2069,6 @@ struct drm_mode_config_funcs { * @connection_mutex: ww mutex protecting connector state and routing * @acquire_ctx: global implicit acquire context used by atomic drivers for * legacy IOCTLs - * @idr_mutex: mutex for KMS ID allocation and management - * @crtc_idr: main KMS ID tracking object * @fb_lock: mutex to protect fb state and lists * @num_fb: number of fbs available * @fb_list: list of framebuffers available @@ -2065,6 +2090,7 @@ struct drm_mode_config_funcs { * @fb_base: base address of the framebuffer * @poll_enabled: track polling support for this device * @poll_running: track polling status for this device + * @delayed_event: track delayed poll uevent deliver for this device * @output_poll_work: delayed work for polling in process context * @property_blob_list: list of all the blob property objects * @blob_lock: mutex for blob property allocation and management @@ -2092,10 +2118,30 @@ struct drm_mode_config { struct mutex mutex; /* protects configuration (mode lists etc.) */ struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */ struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */ - struct mutex idr_mutex; /* for IDR management */ - struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ - struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */ - /* this is limited to one for now */ + + /** + * @idr_mutex: + * + * Mutex for KMS ID allocation and management. Protects both @crtc_idr + * and @tile_idr. + */ + struct mutex idr_mutex; + + /** + * @crtc_idr: + * + * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc, + * connector, modes - just makes life easier to have only one. + */ + struct idr crtc_idr; + + /** + * @tile_idr: + * + * Use this idr for allocating new IDs for tiled sinks like use in some + * high-res DP MST screens. + */ + struct idr tile_idr; struct mutex fb_lock; /* proctects global and per-file fb lists */ int num_fb; @@ -2197,7 +2243,11 @@ struct drm_mode_config { /* whether async page flip is supported or not */ bool async_page_flip; - /* whether the driver supports fb modifiers */ + /** + * @allow_fb_modifiers: + * + * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call. + */ bool allow_fb_modifiers; /* cursor size */