drm/kms-core: Use recommened kerneldoc for struct member refs
I just learned that &struct_name.member_name works and looks pretty even. It doesn't (yet) link to the member directly though, which would be really good for big structures or vfunc tables (where the per-member kerneldoc tends to be long). Also some minor drive-by polish where it makes sense, I read a lot of docs ... v2: Review from Eric. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170125062657.19270-4-daniel.vetter@ffwll.ch
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@ -195,8 +195,8 @@ EXPORT_SYMBOL(drm_atomic_state_default_clear);
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* all locks. So someone else could sneak in and change the current modeset
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* configuration. Which means that all the state assembled in @state is no
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* longer an atomic update to the current state, but to some arbitrary earlier
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* state. Which could break assumptions the driver's ->atomic_check likely
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* relies on.
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* state. Which could break assumptions the driver's
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* &drm_mode_config_funcs.atomic_check likely relies on.
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*
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* Hence we must clear all cached state and completely start over, using this
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* function.
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@ -456,11 +456,10 @@ drm_atomic_replace_property_blob_from_id(struct drm_crtc *crtc,
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* @property: the property to set
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* @val: the new property value
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*
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* Use this instead of calling crtc->atomic_set_property directly.
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_set_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_crtc_funcs.atomic_set_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -532,10 +531,10 @@ EXPORT_SYMBOL(drm_atomic_crtc_set_property);
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* @property: the property to set
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* @val: return location for the property value
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*
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_get_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_crtc_funcs.atomic_get_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -716,11 +715,10 @@ EXPORT_SYMBOL(drm_atomic_get_plane_state);
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* @property: the property to set
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* @val: the new property value
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*
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* Use this instead of calling plane->atomic_set_property directly.
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_set_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_plane_funcs.atomic_set_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -791,10 +789,10 @@ EXPORT_SYMBOL(drm_atomic_plane_set_property);
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* @property: the property to set
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* @val: return location for the property value
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*
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_get_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_plane_funcs.atomic_get_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -1057,11 +1055,10 @@ EXPORT_SYMBOL(drm_atomic_get_connector_state);
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* @property: the property to set
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* @val: the new property value
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*
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* Use this instead of calling connector->atomic_set_property directly.
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_set_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_connector_funcs.atomic_set_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -1136,10 +1133,10 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
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* @property: the property to set
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* @val: return location for the property value
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*
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* This function handles generic/core properties and calls out to
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* driver's ->atomic_get_property() for driver properties. To ensure
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* consistent behavior you must call this function rather than the
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* driver hook directly.
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* This function handles generic/core properties and calls out to driver's
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* &drm_connector_funcs.atomic_get_property for driver properties. To ensure
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* consistent behavior you must call this function rather than the driver hook
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* directly.
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*
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* RETURNS:
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* Zero on success, error code on failure
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@ -1312,12 +1309,11 @@ EXPORT_SYMBOL(drm_atomic_set_fb_for_plane);
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* implicit or explicit fencing.
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*
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* This function will not set the fence to the state if it was set
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* via explicit fencing interfaces on the atomic ioctl. It will
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* all drope the reference to the fence as we not storing it
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* anywhere.
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*
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* Otherwise, if plane_state->fence is not set this function we
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* just set it with the received implict fence.
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* via explicit fencing interfaces on the atomic ioctl. In that case it will
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* drop the reference to the fence as we are not storing it anywhere.
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* Otherwise, if &drm_plane_state.fence is not set this function we just set it
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* with the received implicit fence. In both cases this function consumes a
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* reference for @fence.
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*/
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void
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drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state,
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@ -1616,7 +1612,7 @@ int drm_atomic_commit(struct drm_atomic_state *state)
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EXPORT_SYMBOL(drm_atomic_commit);
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/**
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* drm_atomic_nonblocking_commit - atomic&nonblocking configuration commit
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* drm_atomic_nonblocking_commit - atomic nonblocking commit
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* @state: atomic configuration to check
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*
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* Note that this function can return -EDEADLK if the driver needed to acquire
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@ -1829,10 +1825,10 @@ static int atomic_set_prop(struct drm_atomic_state *state,
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* @plane_mask: plane mask for planes that were updated.
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* @ret: return value, can be -EDEADLK for a retry.
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*
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* Before doing an update plane->old_fb is set to plane->fb,
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* but before dropping the locks old_fb needs to be set to NULL
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* and plane->fb updated. This is a common operation for each
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* atomic update, so this call is split off as a helper.
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* Before doing an update &drm_plane.old_fb is set to &drm_plane.fb, but before
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* dropping the locks old_fb needs to be set to NULL and plane->fb updated. This
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* is a common operation for each atomic update, so this call is split off as a
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* helper.
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*/
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void drm_atomic_clean_old_fb(struct drm_device *dev,
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unsigned plane_mask,
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@ -1873,7 +1869,7 @@ EXPORT_SYMBOL(drm_atomic_clean_old_fb);
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* As a contrast, with implicit fencing the kernel keeps track of any
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* ongoing rendering, and automatically ensures that the atomic update waits
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* for any pending rendering to complete. For shared buffers represented with
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* a &struct dma_buf this is tracked in &reservation_object structures.
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* a &struct dma_buf this is tracked in &struct reservation_object.
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* Implicit syncing is how Linux traditionally worked (e.g. DRI2/3 on X.org),
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* whereas explicit fencing is what Android wants.
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*
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@ -40,9 +40,8 @@
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* sub-pixel accuracy, which is scaled up to a pixel-aligned destination
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* rectangle in the visible area of a &drm_crtc. The visible area of a CRTC is
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* defined by the horizontal and vertical visible pixels (stored in @hdisplay
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* and @vdisplay) of the requested mode (stored in @mode in the
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* &drm_crtc_state). These two rectangles are both stored in the
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* &drm_plane_state.
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* and @vdisplay) of the requested mode (stored in &drm_crtc_state.mode). These
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* two rectangles are both stored in the &drm_plane_state.
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*
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* For the atomic ioctl the following standard (atomic) properties on the plane object
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* encode the basic plane composition model:
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@ -215,7 +214,7 @@ EXPORT_SYMBOL(drm_rotation_simplify);
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* for it in drm core. Drivers can then attach this property to planes to enable
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* support for configurable planes arrangement during blending operation.
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* Once mutable zpos property has been enabled, the DRM core will automatically
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* calculate drm_plane_state->normalized_zpos values. Usually min should be set
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* calculate &drm_plane_state.normalized_zpos values. Usually min should be set
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* to 0 and max to maximal number of planes for given crtc - 1.
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*
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* If zpos of some planes cannot be changed (like fixed background or
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@ -367,8 +366,8 @@ done:
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* For every CRTC this function checks new states of all planes assigned to
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* it and calculates normalized zpos value for these planes. Planes are compared
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* first by their zpos values, then by plane id (if zpos is equal). The plane
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* with lowest zpos value is at the bottom. The plane_state->normalized_zpos is
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* then filled with unique values from 0 to number of active planes in crtc
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* with lowest zpos value is at the bottom. The &drm_plane_state.normalized_zpos
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* is then filled with unique values from 0 to number of active planes in crtc
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* minus one.
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*
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* RETURNS
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@ -38,8 +38,8 @@
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* Hence they are reference-counted using drm_connector_reference() and
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* drm_connector_unreference().
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*
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* KMS driver must create, initialize, register and attach at a struct
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* &drm_connector for each such sink. The instance is created as other KMS
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* KMS driver must create, initialize, register and attach at a &struct
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* drm_connector for each such sink. The instance is created as other KMS
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* objects and initialized by setting the following fields.
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*
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* The connector is then registered with a call to drm_connector_init() with a
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@ -49,7 +49,7 @@
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* Connectors must be attached to an encoder to be used. For devices that map
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* connectors to encoders 1:1, the connector should be attached at
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* initialization time with a call to drm_mode_connector_attach_encoder(). The
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* driver must also set the &struct drm_connector encoder field to point to the
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* driver must also set the &drm_connector.encoder field to point to the
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* attached encoder.
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*
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* For connectors which are not fixed (like built-in panels) the driver needs to
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@ -497,7 +497,7 @@ static struct lockdep_map connector_list_iter_dep_map = {
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* @dev: DRM device
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* @iter: connector_list iterator
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*
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* Sets @iter up to walk the connector list in &drm_mode_config of @dev. @iter
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* Sets @iter up to walk the &drm_mode_config.connector_list of @dev. @iter
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* must always be cleaned up again by calling drm_connector_list_iter_put().
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* Iteration itself happens using drm_connector_list_iter_next() or
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* drm_for_each_connector_iter().
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@ -696,8 +696,8 @@ DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
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* drivers this is only provided for backwards compatibility with existing
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* drivers, it remaps to controlling the "ACTIVE" property on the CRTC the
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* connector is linked to. Drivers should never set this property directly,
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* it is handled by the DRM core by calling the ->dpms() callback in
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* &drm_connector_funcs. Atomic drivers should implement this hook using
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* it is handled by the DRM core by calling the &drm_connector_funcs.dpms
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* callback. Atomic drivers should implement this hook using
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* drm_atomic_helper_connector_dpms(). This is the only property standard
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* connector property that userspace can change.
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* PATH:
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@ -415,11 +415,12 @@ int drm_mode_getcrtc(struct drm_device *dev,
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}
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/**
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* drm_mode_set_config_internal - helper to call ->set_config
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* drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config
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* @set: modeset config to set
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*
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* This is a little helper to wrap internal calls to the ->set_config driver
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* interface. The only thing it adds is correct refcounting dance.
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* This is a little helper to wrap internal calls to the
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* &drm_mode_config_funcs.set_config driver interface. The only thing it adds is
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* correct refcounting dance.
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*
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* Returns:
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* Zero on success, negative errno on failure.
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|
|
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@ -42,8 +42,8 @@
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* create dumb buffers suitable for scanout, which can then be used to create
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* KMS frame buffers.
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*
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* To support dumb objects drivers must implement the dumb_create,
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* dumb_destroy and dumb_map_offset operations from &struct drm_driver. See
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* To support dumb objects drivers must implement the &drm_driver.dumb_create,
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* &drm_driver.dumb_destroy and &drm_driver.dumb_map_offset operations. See
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* there for further details.
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*
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* Note that dumb objects may not be used for gpu acceleration, as has been
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|
|
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@ -98,7 +98,7 @@ void drm_encoder_unregister_all(struct drm_device *dev)
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*
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* Initialises a preallocated encoder. Encoder should be subclassed as part of
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* driver encoder objects. At driver unload time drm_encoder_cleanup() should be
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* called from the driver's destroy hook in &drm_encoder_funcs.
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* called from the driver's &drm_encoder_funcs.destroy hook.
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*
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* Returns:
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* Zero on success, error code on failure.
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|
|
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@ -43,7 +43,7 @@
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* &drm_encoder_slave. The @slave_funcs field will be initialized with
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* the hooks provided by the slave driver.
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*
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* If @info->platform_data is non-NULL it will be used as the initial
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* If @info.platform_data is non-NULL it will be used as the initial
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* slave config.
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*
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* Returns 0 on success or a negative errno on failure, in particular,
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|
|
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@ -58,8 +58,8 @@
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* fbdev framebuffer when the struct &struct drm_framebuffer is embedded into
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* the fbdev helper struct) drivers can manually clean up a framebuffer at
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* module unload time with drm_framebuffer_unregister_private(). But doing this
|
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* is not recommended, and it's better to have a normal free-standing struct
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* &drm_framebuffer.
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* is not recommended, and it's better to have a normal free-standing &struct
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* drm_framebuffer.
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*/
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int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y,
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|
@ -470,7 +470,7 @@ int drm_mode_getfb(struct drm_device *dev,
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* usb display-link, mipi manual update panels or edp panel self refresh modes.
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*
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* Modesetting drivers which always update the frontbuffer do not need to
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* implement the corresponding ->dirty framebuffer callback.
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* implement the corresponding &drm_framebuffer_funcs.dirty callback.
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*
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* Called by the user via ioctl.
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*
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|
@ -709,10 +709,10 @@ EXPORT_SYMBOL(drm_framebuffer_unregister_private);
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* @fb: framebuffer to remove
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*
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* Cleanup framebuffer. This function is intended to be used from the drivers
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* ->destroy callback. It can also be used to clean up driver private
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* framebuffers embedded into a larger structure.
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* &drm_framebuffer_funcs.destroy callback. It can also be used to clean up
|
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* driver private framebuffers embedded into a larger structure.
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*
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* Note that this function does not remove the fb from active usuage - if it is
|
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* Note that this function does not remove the fb from active usage - if it is
|
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* still used anywhere, hilarity can ensue since userspace could call getfb on
|
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* the id and get back -EINVAL. Obviously no concern at driver unload time.
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*
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|
|
|
@ -33,7 +33,7 @@
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* to use &ww_mutex and acquire-contexts to avoid deadlocks. But because
|
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* the locking is more distributed around the driver code, we want a bit
|
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* of extra utility/tracking out of our acquire-ctx. This is provided
|
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* by drm_modeset_lock / drm_modeset_acquire_ctx.
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* by &struct drm_modeset_lock and &struct drm_modeset_acquire_ctx.
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*
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* For basic principles of &ww_mutex, see: Documentation/locking/ww-mutex-design.txt
|
||||
*
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|
@ -53,7 +53,7 @@
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* drm_modeset_acquire_fini(&ctx);
|
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*
|
||||
* On top of of these per-object locks using &ww_mutex there's also an overall
|
||||
* dev->mode_config.lock, for protecting everything else. Mostly this means
|
||||
* &drm_mode_config.mutex, for protecting everything else. Mostly this means
|
||||
* probe state of connectors, and preventing hotplug add/removal of connectors.
|
||||
*
|
||||
* Finally there's a bunch of dedicated locks to protect drm core internal
|
||||
|
@ -71,7 +71,7 @@ static DEFINE_WW_CLASS(crtc_ww_class);
|
|||
* drm_modeset_unlock_all() function.
|
||||
*
|
||||
* This function is deprecated. It allocates a lock acquisition context and
|
||||
* stores it in the DRM device's ->mode_config. This facilitate conversion of
|
||||
* stores it in &drm_device.mode_config. This facilitate conversion of
|
||||
* existing code because it removes the need to manually deal with the
|
||||
* acquisition context, but it is also brittle because the context is global
|
||||
* and care must be taken not to nest calls. New code should use the
|
||||
|
@ -124,7 +124,7 @@ EXPORT_SYMBOL(drm_modeset_lock_all);
|
|||
* drm_modeset_lock_all() function.
|
||||
*
|
||||
* This function is deprecated. It uses the lock acquisition context stored
|
||||
* in the DRM device's ->mode_config. This facilitates conversion of existing
|
||||
* in &drm_device.mode_config. This facilitates conversion of existing
|
||||
* code because it removes the need to manually deal with the acquisition
|
||||
* context, but it is also brittle because the context is global and care must
|
||||
* be taken not to nest calls. New code should pass the acquisition context
|
||||
|
@ -468,7 +468,7 @@ EXPORT_SYMBOL(drm_modeset_unlock);
|
|||
* This function takes all modeset locks, suitable where a more fine-grained
|
||||
* scheme isn't (yet) implemented.
|
||||
*
|
||||
* Unlike drm_modeset_lock_all(), it doesn't take the dev->mode_config.mutex
|
||||
* Unlike drm_modeset_lock_all(), it doesn't take the &drm_mode_config.mutex
|
||||
* since that lock isn't required for modeset state changes. Callers which
|
||||
* need to grab that lock too need to do so outside of the acquire context
|
||||
* @ctx.
|
||||
|
|
|
@ -42,7 +42,7 @@
|
|||
*
|
||||
* Cursor and overlay planes are optional. All drivers should provide one
|
||||
* primary plane per CRTC to avoid surprising userspace too much. See enum
|
||||
* &drm_plane_type for a more in-depth discussion of these special uapi-relevant
|
||||
* drm_plane_type for a more in-depth discussion of these special uapi-relevant
|
||||
* plane types. Special planes are associated with their CRTC by calling
|
||||
* drm_crtc_init_with_planes().
|
||||
*
|
||||
|
|
|
@ -42,8 +42,8 @@
|
|||
* drm_object_attach_property().
|
||||
*
|
||||
* Property values are only 64bit. To support bigger piles of data (like gamma
|
||||
* tables, color correction matrizes or large structures) a property can instead
|
||||
* point at a &drm_property_blob with that additional data
|
||||
* tables, color correction matrices or large structures) a property can instead
|
||||
* point at a &drm_property_blob with that additional data.
|
||||
*
|
||||
* Properties are defined by their symbolic name, userspace must keep a
|
||||
* per-object mapping from those names to the property ID used in the atomic
|
||||
|
|
|
@ -123,7 +123,8 @@ struct drm_crtc_commit {
|
|||
/**
|
||||
* @commit_entry:
|
||||
*
|
||||
* Entry on the per-CRTC commit_list. Protected by crtc->commit_lock.
|
||||
* Entry on the per-CRTC &drm_crtc.commit_list. Protected by
|
||||
* $drm_crtc.commit_lock.
|
||||
*/
|
||||
struct list_head commit_entry;
|
||||
|
||||
|
@ -429,7 +430,8 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
|
|||
*
|
||||
* For example if the CRTC mode has changed, and the hardware is able to enact
|
||||
* the requested mode change without going through a full modeset, the driver
|
||||
* should clear mode_changed during its ->atomic_check.
|
||||
* should clear mode_changed in its &drm_mode_config_funcs.atomic_check
|
||||
* implementation.
|
||||
*/
|
||||
static inline bool
|
||||
drm_atomic_crtc_needs_modeset(const struct drm_crtc_state *state)
|
||||
|
|
|
@ -34,7 +34,7 @@ int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
|
|||
int gamma_size);
|
||||
|
||||
/**
|
||||
* drm_color_lut_extract - clamp&round LUT entries
|
||||
* drm_color_lut_extract - clamp and round LUT entries
|
||||
* @user_input: input value
|
||||
* @bit_precision: number of bits the hw LUT supports
|
||||
*
|
||||
|
|
|
@ -331,15 +331,15 @@ struct drm_connector_funcs {
|
|||
*
|
||||
* Entry point for output detection and basic mode validation. The
|
||||
* driver should reprobe the output if needed (e.g. when hotplug
|
||||
* handling is unreliable), add all detected modes to connector->modes
|
||||
* handling is unreliable), add all detected modes to &drm_connector.modes
|
||||
* and filter out any the device can't support in any configuration. It
|
||||
* also needs to filter out any modes wider or higher than the
|
||||
* parameters max_width and max_height indicate.
|
||||
*
|
||||
* The drivers must also prune any modes no longer valid from
|
||||
* connector->modes. Furthermore it must update connector->status and
|
||||
* connector->edid. If no EDID has been received for this output
|
||||
* connector->edid must be NULL.
|
||||
* &drm_connector.modes. Furthermore it must update
|
||||
* &drm_connector.status and &drm_connector.edid. If no EDID has been
|
||||
* received for this output connector->edid must be NULL.
|
||||
*
|
||||
* Drivers using the probe helpers should use
|
||||
* drm_helper_probe_single_connector_modes() or
|
||||
|
@ -348,7 +348,7 @@ struct drm_connector_funcs {
|
|||
*
|
||||
* RETURNS:
|
||||
*
|
||||
* The number of modes detected and filled into connector->modes.
|
||||
* The number of modes detected and filled into &drm_connector.modes.
|
||||
*/
|
||||
int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
|
||||
|
||||
|
@ -381,7 +381,7 @@ struct drm_connector_funcs {
|
|||
* core drm connector interfaces. Everything added from this callback
|
||||
* should be unregistered in the early_unregister callback.
|
||||
*
|
||||
* This is called while holding drm_connector->mutex.
|
||||
* This is called while holding &drm_connector.mutex.
|
||||
*
|
||||
* Returns:
|
||||
*
|
||||
|
@ -398,7 +398,7 @@ struct drm_connector_funcs {
|
|||
* early in the driver unload sequence to disable userspace access
|
||||
* before data structures are torndown.
|
||||
*
|
||||
* This is called while holding drm_connector->mutex.
|
||||
* This is called while holding &drm_connector.mutex.
|
||||
*/
|
||||
void (*early_unregister)(struct drm_connector *connector);
|
||||
|
||||
|
@ -418,9 +418,9 @@ struct drm_connector_funcs {
|
|||
* Duplicate the current atomic state for this connector and return it.
|
||||
* The core and helpers guarantee that any atomic state duplicated with
|
||||
* this hook and still owned by the caller (i.e. not transferred to the
|
||||
* driver by calling ->atomic_commit() from struct
|
||||
* &drm_mode_config_funcs) will be cleaned up by calling the
|
||||
* @atomic_destroy_state hook in this structure.
|
||||
* driver by calling &drm_mode_config_funcs.atomic_commit) will be
|
||||
* cleaned up by calling the @atomic_destroy_state hook in this
|
||||
* structure.
|
||||
*
|
||||
* Atomic drivers which don't subclass &struct drm_connector_state should use
|
||||
* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
|
||||
|
@ -428,7 +428,7 @@ struct drm_connector_funcs {
|
|||
* __drm_atomic_helper_connector_duplicate_state() to make sure shared state is
|
||||
* duplicated in a consistent fashion across drivers.
|
||||
*
|
||||
* It is an error to call this hook before connector->state has been
|
||||
* It is an error to call this hook before &drm_connector.state has been
|
||||
* initialized correctly.
|
||||
*
|
||||
* NOTE:
|
||||
|
@ -609,8 +609,8 @@ struct drm_connector {
|
|||
|
||||
/**
|
||||
* @mutex: Lock for general connector state, but currently only protects
|
||||
* @registered. Most of the connector state is still protected by the
|
||||
* mutex in &drm_mode_config.
|
||||
* @registered. Most of the connector state is still protected by
|
||||
* &drm_mode_config.mutex.
|
||||
*/
|
||||
struct mutex mutex;
|
||||
|
||||
|
@ -636,22 +636,22 @@ struct drm_connector {
|
|||
/**
|
||||
* @modes:
|
||||
* Modes available on this connector (from fill_modes() + user).
|
||||
* Protected by dev->mode_config.mutex.
|
||||
* Protected by &drm_mode_config.mutex.
|
||||
*/
|
||||
struct list_head modes; /* list of modes on this connector */
|
||||
struct list_head modes;
|
||||
|
||||
/**
|
||||
* @status:
|
||||
* One of the drm_connector_status enums (connected, not, or unknown).
|
||||
* Protected by dev->mode_config.mutex.
|
||||
* Protected by &drm_mode_config.mutex.
|
||||
*/
|
||||
enum drm_connector_status status;
|
||||
|
||||
/**
|
||||
* @probed_modes:
|
||||
* These are modes added by probing with DDC or the BIOS, before
|
||||
* filtering is applied. Used by the probe helpers.Protected by
|
||||
* dev->mode_config.mutex.
|
||||
* filtering is applied. Used by the probe helpers. Protected by
|
||||
* &drm_mode_config.mutex.
|
||||
*/
|
||||
struct list_head probed_modes;
|
||||
|
||||
|
@ -659,10 +659,10 @@ struct drm_connector {
|
|||
* @display_info: Display information is filled from EDID information
|
||||
* when a display is detected. For non hot-pluggable displays such as
|
||||
* flat panels in embedded systems, the driver should initialize the
|
||||
* display_info.width_mm and display_info.height_mm fields with the
|
||||
* physical size of the display.
|
||||
* &drm_display_info.width_mm and &drm_display_info.height_mm fields
|
||||
* with the physical size of the display.
|
||||
*
|
||||
* Protected by dev->mode_config.mutex.
|
||||
* Protected by &drm_mode_config.mutex.
|
||||
*/
|
||||
struct drm_display_info display_info;
|
||||
const struct drm_connector_funcs *funcs;
|
||||
|
|
|
@ -81,8 +81,8 @@ struct drm_plane_helper_funcs;
|
|||
* @enable: whether the CRTC should be enabled, gates all other state
|
||||
* @active: whether the CRTC is actively displaying (used for DPMS)
|
||||
* @planes_changed: planes on this crtc are updated
|
||||
* @mode_changed: crtc_state->mode or crtc_state->enable has been changed
|
||||
* @active_changed: crtc_state->active has been toggled.
|
||||
* @mode_changed: @mode or @enable has been changed
|
||||
* @active_changed: @active has been toggled.
|
||||
* @connectors_changed: connectors to this crtc have been updated
|
||||
* @zpos_changed: zpos values of planes on this crtc have been updated
|
||||
* @color_mgmt_changed: color management properties have changed (degamma or
|
||||
|
@ -102,9 +102,10 @@ struct drm_plane_helper_funcs;
|
|||
*
|
||||
* Note that the distinction between @enable and @active is rather subtile:
|
||||
* Flipping @active while @enable is set without changing anything else may
|
||||
* never return in a failure from the ->atomic_check callback. Userspace assumes
|
||||
* that a DPMS On will always succeed. In other words: @enable controls resource
|
||||
* assignment, @active controls the actual hardware state.
|
||||
* never return in a failure from the &drm_mode_config_funcs.atomic_check
|
||||
* callback. Userspace assumes that a DPMS On will always succeed. In other
|
||||
* words: @enable controls resource assignment, @active controls the actual
|
||||
* hardware state.
|
||||
*
|
||||
* The three booleans active_changed, connectors_changed and mode_changed are
|
||||
* intended to indicate whether a full modeset is needed, rather than strictly
|
||||
|
@ -346,8 +347,8 @@ struct drm_crtc_funcs {
|
|||
* through the DRM_MODE_PAGE_FLIP_ASYNC flag). When an application
|
||||
* requests a page flip the DRM core verifies that the new frame buffer
|
||||
* is large enough to be scanned out by the CRTC in the currently
|
||||
* configured mode and then calls the CRTC ->page_flip() operation with a
|
||||
* pointer to the new frame buffer.
|
||||
* configured mode and then calls this hook with a pointer to the new
|
||||
* frame buffer.
|
||||
*
|
||||
* The driver must wait for any pending rendering to the new framebuffer
|
||||
* to complete before executing the flip. It should also wait for any
|
||||
|
@ -382,7 +383,7 @@ struct drm_crtc_funcs {
|
|||
* RETURNS:
|
||||
*
|
||||
* 0 on success or a negative error code on failure. Note that if a
|
||||
* ->page_flip() operation is already pending the callback should return
|
||||
* page flip operation is already pending the callback should return
|
||||
* -EBUSY. Pageflips on a disabled CRTC (either by setting a NULL mode
|
||||
* or just runtime disabled through DPMS respectively the new atomic
|
||||
* "ACTIVE" state) should result in an -EINVAL error code. Note that
|
||||
|
@ -434,19 +435,19 @@ struct drm_crtc_funcs {
|
|||
* @atomic_duplicate_state:
|
||||
*
|
||||
* Duplicate the current atomic state for this CRTC and return it.
|
||||
* The core and helpers gurantee that any atomic state duplicated with
|
||||
* The core and helpers guarantee that any atomic state duplicated with
|
||||
* this hook and still owned by the caller (i.e. not transferred to the
|
||||
* driver by calling ->atomic_commit() from struct
|
||||
* &drm_mode_config_funcs) will be cleaned up by calling the
|
||||
* @atomic_destroy_state hook in this structure.
|
||||
* driver by calling &drm_mode_config_funcs.atomic_commit) will be
|
||||
* cleaned up by calling the @atomic_destroy_state hook in this
|
||||
* structure.
|
||||
*
|
||||
* Atomic drivers which don't subclass &struct drm_crtc should use
|
||||
* Atomic drivers which don't subclass &struct drm_crtc_state should use
|
||||
* drm_atomic_helper_crtc_duplicate_state(). Drivers that subclass the
|
||||
* state structure to extend it with driver-private state should use
|
||||
* __drm_atomic_helper_crtc_duplicate_state() to make sure shared state is
|
||||
* duplicated in a consistent fashion across drivers.
|
||||
*
|
||||
* It is an error to call this hook before crtc->state has been
|
||||
* It is an error to call this hook before &drm_crtc.state has been
|
||||
* initialized correctly.
|
||||
*
|
||||
* NOTE:
|
||||
|
@ -641,7 +642,7 @@ struct drm_crtc {
|
|||
* 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, crtc properties ...). Full
|
||||
* modeset also need to grab dev->mode_config.connection_mutex.
|
||||
* modeset also need to grab &drm_mode_config.connection_mutex.
|
||||
*/
|
||||
struct drm_modeset_lock mutex;
|
||||
|
||||
|
|
|
@ -40,8 +40,8 @@ struct drm_framebuffer_funcs {
|
|||
*
|
||||
* Clean up framebuffer resources, specifically also unreference the
|
||||
* backing storage. The core guarantees to call this function for every
|
||||
* framebuffer successfully created by ->fb_create() in
|
||||
* &drm_mode_config_funcs. Drivers must also call
|
||||
* framebuffer successfully created by calling
|
||||
* &drm_mode_config_funcs.fb_create. Drivers must also call
|
||||
* drm_framebuffer_cleanup() to release DRM core resources for this
|
||||
* framebuffer.
|
||||
*/
|
||||
|
@ -112,8 +112,8 @@ struct drm_framebuffer {
|
|||
*/
|
||||
struct drm_device *dev;
|
||||
/**
|
||||
* @head: Place on the dev->mode_config.fb_list, access protected by
|
||||
* dev->mode_config.fb_lock.
|
||||
* @head: Place on the &drm_mode_config.fb_list, access protected by
|
||||
* &drm_mode_config.fb_lock.
|
||||
*/
|
||||
struct list_head head;
|
||||
|
||||
|
@ -187,8 +187,7 @@ struct drm_framebuffer {
|
|||
*/
|
||||
int hot_y;
|
||||
/**
|
||||
* @filp_head: Placed on &struct drm_file fbs list_head, protected by
|
||||
* fbs_lock in the same structure.
|
||||
* @filp_head: Placed on &drm_file.fbs, protected by &drm_file.fbs_lock.
|
||||
*/
|
||||
struct list_head filp_head;
|
||||
};
|
||||
|
@ -260,8 +259,8 @@ static inline void drm_framebuffer_assign(struct drm_framebuffer **p,
|
|||
* @fb: the loop cursor
|
||||
* @dev: the DRM device
|
||||
*
|
||||
* Iterate over all framebuffers of @dev. User must hold the fb_lock from
|
||||
* &drm_mode_config.
|
||||
* Iterate over all framebuffers of @dev. User must hold
|
||||
* &drm_mode_config.fb_lock.
|
||||
*/
|
||||
#define drm_for_each_fb(fb, dev) \
|
||||
for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \
|
||||
|
|
|
@ -132,8 +132,8 @@ struct drm_mode_config_funcs {
|
|||
* that before calling this hook.
|
||||
*
|
||||
* See the documentation of @atomic_commit for an exhaustive list of
|
||||
* error conditions which don't have to be checked at the
|
||||
* ->atomic_check() stage?
|
||||
* error conditions which don't have to be checked at the in this
|
||||
* callback.
|
||||
*
|
||||
* See the documentation for &struct drm_atomic_state for how exactly
|
||||
* an atomic modeset update is described.
|
||||
|
@ -198,10 +198,10 @@ struct drm_mode_config_funcs {
|
|||
* completed. These events are per-CRTC and can be distinguished by the
|
||||
* CRTC index supplied in &drm_event to userspace.
|
||||
*
|
||||
* The drm core will supply a &struct drm_event in the event
|
||||
* member of each CRTC's &drm_crtc_state structure. See the
|
||||
* documentation for &drm_crtc_state for more details about the precise
|
||||
* semantics of this event.
|
||||
* The drm core will supply a &struct drm_event in each CRTC's
|
||||
* &drm_crtc_state.event. See the documentation for
|
||||
* &drm_crtc_state.event for more details about the precise semantics of
|
||||
* this event.
|
||||
*
|
||||
* NOTE:
|
||||
*
|
||||
|
|
|
@ -86,10 +86,15 @@ struct drm_object_properties {
|
|||
*
|
||||
* Note that atomic drivers do not store mutable properties in this
|
||||
* array, but only the decoded values in the corresponding state
|
||||
* structure. The decoding is done using the ->atomic_get_property and
|
||||
* ->atomic_set_property hooks of the corresponding object. Hence atomic
|
||||
* drivers should not use drm_object_property_set_value() and
|
||||
* drm_object_property_get_value() on mutable objects, i.e. those
|
||||
* structure. The decoding is done using the &drm_crtc.atomic_get_property and
|
||||
* &drm_crtc.atomic_set_property hooks for &struct drm_crtc. For
|
||||
* &struct drm_plane the hooks are &drm_plane_funcs.atomic_get_property and
|
||||
* &drm_plane_funcs.atomic_set_property. And for &struct drm_connector
|
||||
* the hooks are &drm_connector_funcs.atomic_get_property and
|
||||
* &drm_connector_funcs.atomic_set_property .
|
||||
*
|
||||
* Hence atomic drivers should not use drm_object_property_set_value()
|
||||
* and drm_object_property_get_value() on mutable objects, i.e. those
|
||||
* without the DRM_MODE_PROP_IMMUTABLE flag set.
|
||||
*/
|
||||
uint64_t values[DRM_OBJECT_MAX_PROPERTY];
|
||||
|
|
|
@ -64,7 +64,7 @@ struct drm_modeset_acquire_ctx {
|
|||
/**
|
||||
* struct drm_modeset_lock - used for locking modeset resources.
|
||||
* @mutex: resource locking
|
||||
* @head: used to hold it's place on state->locked list when
|
||||
* @head: used to hold it's place on &drm_atomi_state.locked list when
|
||||
* part of an atomic update
|
||||
*
|
||||
* Used for locking CRTCs and other modeset resources.
|
||||
|
|
|
@ -247,11 +247,11 @@ struct drm_plane_funcs {
|
|||
* @atomic_duplicate_state:
|
||||
*
|
||||
* Duplicate the current atomic state for this plane and return it.
|
||||
* The core and helpers gurantee that any atomic state duplicated with
|
||||
* The core and helpers guarantee that any atomic state duplicated with
|
||||
* this hook and still owned by the caller (i.e. not transferred to the
|
||||
* driver by calling ->atomic_commit() from struct
|
||||
* &drm_mode_config_funcs) will be cleaned up by calling the
|
||||
* @atomic_destroy_state hook in this structure.
|
||||
* driver by calling &drm_mode_config_funcs.atomic_commit) will be
|
||||
* cleaned up by calling the @atomic_destroy_state hook in this
|
||||
* structure.
|
||||
*
|
||||
* Atomic drivers which don't subclass &struct drm_plane_state should use
|
||||
* drm_atomic_helper_plane_duplicate_state(). Drivers that subclass the
|
||||
|
@ -259,7 +259,7 @@ struct drm_plane_funcs {
|
|||
* __drm_atomic_helper_plane_duplicate_state() to make sure shared state is
|
||||
* duplicated in a consistent fashion across drivers.
|
||||
*
|
||||
* It is an error to call this hook before plane->state has been
|
||||
* It is an error to call this hook before &drm_plane.state has been
|
||||
* initialized correctly.
|
||||
*
|
||||
* NOTE:
|
||||
|
@ -423,8 +423,8 @@ enum drm_plane_type {
|
|||
*
|
||||
* Primary planes represent a "main" plane for a CRTC. Primary planes
|
||||
* are the planes operated upon by CRTC modesetting and flipping
|
||||
* operations described in the page_flip and set_config hooks in struct
|
||||
* &drm_crtc_funcs.
|
||||
* operations described in the &drm_crtc_funcs.page_flip and
|
||||
* &drm_crtc_funcs.set_config hooks.
|
||||
*/
|
||||
DRM_PLANE_TYPE_PRIMARY,
|
||||
|
||||
|
@ -470,9 +470,9 @@ struct drm_plane {
|
|||
/**
|
||||
* @mutex:
|
||||
*
|
||||
* Protects modeset plane state, together with the mutex of &drm_crtc
|
||||
* this plane is linked to (when active, getting actived or getting
|
||||
* disabled).
|
||||
* Protects modeset plane state, together with the &drm_crtc.mutex of
|
||||
* CRTC this plane is linked to (when active, getting activated or
|
||||
* getting disabled).
|
||||
*/
|
||||
struct drm_modeset_lock mutex;
|
||||
|
||||
|
@ -580,7 +580,7 @@ static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
|
|||
*
|
||||
* Iterate over all legacy planes of @dev, excluding primary and cursor planes.
|
||||
* This is useful for implementing userspace apis when userspace is not
|
||||
* universal plane aware. See also enum &drm_plane_type.
|
||||
* universal plane aware. See also &enum drm_plane_type.
|
||||
*/
|
||||
#define drm_for_each_legacy_plane(plane, dev) \
|
||||
list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \
|
||||
|
|
|
@ -30,7 +30,7 @@
|
|||
/**
|
||||
* struct drm_property_enum - symbolic values for enumerations
|
||||
* @value: numeric property value for this enum entry
|
||||
* @head: list of enum values, linked to enum_list in &drm_property
|
||||
* @head: list of enum values, linked to &drm_property.enum_list
|
||||
* @name: symbolic name for the enum
|
||||
*
|
||||
* For enumeration and bitmask properties this structure stores the symbolic
|
||||
|
@ -191,9 +191,9 @@ struct drm_property {
|
|||
* struct drm_property_blob - Blob data for &drm_property
|
||||
* @base: base KMS object
|
||||
* @dev: DRM device
|
||||
* @head_global: entry on the global blob list in &drm_mode_config
|
||||
* property_blob_list.
|
||||
* @head_file: entry on the per-file blob list in &drm_file blobs list.
|
||||
* @head_global: entry on the global blob list in
|
||||
* &drm_mode_config.property_blob_list.
|
||||
* @head_file: entry on the per-file blob list in &drm_file.blobs list.
|
||||
* @length: size of the blob in bytes, invariant over the lifetime of the object
|
||||
* @data: actual data, embedded at the end of this structure
|
||||
*
|
||||
|
|
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