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drm/kms-core: Use recommened kerneldoc for struct member refs

Browse Source 
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
This commit is contained in:
Daniel Vetter 2017-01-25 07:26:45 +01:00
parent ef40cbf999
commit d574528a64
21 changed files with 150 additions and 147 deletions
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78
drivers/gpu/drm/drm_atomic.c
View File

@ -195,8 +195,8 @@ EXPORT_SYMBOL(drm_atomic_state_default_clear);
* all locks. So someone else could sneak in and change the current modeset
* configuration. Which means that all the state assembled in @state is no
* longer an atomic update to the current state, but to some arbitrary earlier
* state. Which could break assumptions the driver's ->atomic_check likely
* relies on.
* state. Which could break assumptions the driver's
* &drm_mode_config_funcs.atomic_check likely relies on.
*
* Hence we must clear all cached state and completely start over, using this
* function.
@ -456,11 +456,10 @@ drm_atomic_replace_property_blob_from_id(struct drm_crtc *crtc,
* @property: the property to set
* @val: the new property value
*
* Use this instead of calling crtc->atomic_set_property directly.
* This function handles generic/core properties and calls out to
* driver's ->atomic_set_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_crtc_funcs.atomic_set_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -532,10 +531,10 @@ EXPORT_SYMBOL(drm_atomic_crtc_set_property);
* @property: the property to set
* @val: return location for the property value
*
* This function handles generic/core properties and calls out to
* driver's ->atomic_get_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_crtc_funcs.atomic_get_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -716,11 +715,10 @@ EXPORT_SYMBOL(drm_atomic_get_plane_state);
* @property: the property to set
* @val: the new property value
*
* Use this instead of calling plane->atomic_set_property directly.
* This function handles generic/core properties and calls out to
* driver's ->atomic_set_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_plane_funcs.atomic_set_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -791,10 +789,10 @@ EXPORT_SYMBOL(drm_atomic_plane_set_property);
* @property: the property to set
* @val: return location for the property value
*
* This function handles generic/core properties and calls out to
* driver's ->atomic_get_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_plane_funcs.atomic_get_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -1057,11 +1055,10 @@ EXPORT_SYMBOL(drm_atomic_get_connector_state);
* @property: the property to set
* @val: the new property value
*
* Use this instead of calling connector->atomic_set_property directly.
* This function handles generic/core properties and calls out to
* driver's ->atomic_set_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_connector_funcs.atomic_set_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -1136,10 +1133,10 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
* @property: the property to set
* @val: return location for the property value
*
* This function handles generic/core properties and calls out to
* driver's ->atomic_get_property() for driver properties. To ensure
* consistent behavior you must call this function rather than the
* driver hook directly.
* This function handles generic/core properties and calls out to driver's
* &drm_connector_funcs.atomic_get_property for driver properties. To ensure
* consistent behavior you must call this function rather than the driver hook
* directly.
*
* RETURNS:
* Zero on success, error code on failure
@ -1312,12 +1309,11 @@ EXPORT_SYMBOL(drm_atomic_set_fb_for_plane);
* implicit or explicit fencing.
*
* This function will not set the fence to the state if it was set
* via explicit fencing interfaces on the atomic ioctl. It will
* all drope the reference to the fence as we not storing it
* anywhere.
*
* Otherwise, if plane_state->fence is not set this function we
* just set it with the received implict fence.
* via explicit fencing interfaces on the atomic ioctl. In that case it will
* drop the reference to the fence as we are not storing it anywhere.
* Otherwise, if &drm_plane_state.fence is not set this function we just set it
* with the received implicit fence. In both cases this function consumes a
* reference for @fence.
*/
void
drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state,
@ -1616,7 +1612,7 @@ int drm_atomic_commit(struct drm_atomic_state *state)
EXPORT_SYMBOL(drm_atomic_commit);
/**
* drm_atomic_nonblocking_commit - atomic&nonblocking configuration commit
* drm_atomic_nonblocking_commit - atomic nonblocking commit
* @state: atomic configuration to check
*
* Note that this function can return -EDEADLK if the driver needed to acquire
@ -1829,10 +1825,10 @@ static int atomic_set_prop(struct drm_atomic_state *state,
* @plane_mask: plane mask for planes that were updated.
* @ret: return value, can be -EDEADLK for a retry.
*
* Before doing an update plane->old_fb is set to plane->fb,
* but before dropping the locks old_fb needs to be set to NULL
* and plane->fb updated. This is a common operation for each
* atomic update, so this call is split off as a helper.
* Before doing an update &drm_plane.old_fb is set to &drm_plane.fb, but before
* dropping the locks old_fb needs to be set to NULL and plane->fb updated. This
* is a common operation for each atomic update, so this call is split off as a
* helper.
*/
void drm_atomic_clean_old_fb(struct drm_device *dev,
unsigned plane_mask,
@ -1873,7 +1869,7 @@ EXPORT_SYMBOL(drm_atomic_clean_old_fb);
* As a contrast, with implicit fencing the kernel keeps track of any
* ongoing rendering, and automatically ensures that the atomic update waits
* for any pending rendering to complete. For shared buffers represented with
* a &struct dma_buf this is tracked in &reservation_object structures.
* a &struct dma_buf this is tracked in &struct reservation_object.
* Implicit syncing is how Linux traditionally worked (e.g. DRI2/3 on X.org),
* whereas explicit fencing is what Android wants.
*

11
drivers/gpu/drm/drm_blend.c
View File

@ -40,9 +40,8 @@
* sub-pixel accuracy, which is scaled up to a pixel-aligned destination
* rectangle in the visible area of a &drm_crtc. The visible area of a CRTC is
* defined by the horizontal and vertical visible pixels (stored in @hdisplay
* and @vdisplay) of the requested mode (stored in @mode in the
* &drm_crtc_state). These two rectangles are both stored in the
* &drm_plane_state.
* and @vdisplay) of the requested mode (stored in &drm_crtc_state.mode). These
* two rectangles are both stored in the &drm_plane_state.
*
* For the atomic ioctl the following standard (atomic) properties on the plane object
* encode the basic plane composition model:
@ -215,7 +214,7 @@ EXPORT_SYMBOL(drm_rotation_simplify);
* for it in drm core. Drivers can then attach this property to planes to enable
* support for configurable planes arrangement during blending operation.
* Once mutable zpos property has been enabled, the DRM core will automatically
* calculate drm_plane_state->normalized_zpos values. Usually min should be set
* calculate &drm_plane_state.normalized_zpos values. Usually min should be set
* to 0 and max to maximal number of planes for given crtc - 1.
*
* If zpos of some planes cannot be changed (like fixed background or
@ -367,8 +366,8 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc,
* For every CRTC this function checks new states of all planes assigned to
* it and calculates normalized zpos value for these planes. Planes are compared
* first by their zpos values, then by plane id (if zpos is equal). The plane
* with lowest zpos value is at the bottom. The plane_state->normalized_zpos is
* then filled with unique values from 0 to number of active planes in crtc
* with lowest zpos value is at the bottom. The &drm_plane_state.normalized_zpos
* is then filled with unique values from 0 to number of active planes in crtc
* minus one.
*
* RETURNS

12
drivers/gpu/drm/drm_connector.c
View File

@ -38,8 +38,8 @@
* Hence they are reference-counted using drm_connector_reference() and
* drm_connector_unreference().
*
* KMS driver must create, initialize, register and attach at a struct
* &drm_connector for each such sink. The instance is created as other KMS
* KMS driver must create, initialize, register and attach at a &struct
* drm_connector for each such sink. The instance is created as other KMS
* objects and initialized by setting the following fields.
*
* The connector is then registered with a call to drm_connector_init() with a
@ -49,7 +49,7 @@
* Connectors must be attached to an encoder to be used. For devices that map
* connectors to encoders 1:1, the connector should be attached at
* initialization time with a call to drm_mode_connector_attach_encoder(). The
* driver must also set the &struct drm_connector encoder field to point to the
* driver must also set the &drm_connector.encoder field to point to the
* attached encoder.
*
* For connectors which are not fixed (like built-in panels) the driver needs to
@ -497,7 +497,7 @@ static struct lockdep_map connector_list_iter_dep_map = {
* @dev: DRM device
* @iter: connector_list iterator
*
* Sets @iter up to walk the connector list in &drm_mode_config of @dev. @iter
* Sets @iter up to walk the &drm_mode_config.connector_list of @dev. @iter
* must always be cleaned up again by calling drm_connector_list_iter_put().
* Iteration itself happens using drm_connector_list_iter_next() or
* drm_for_each_connector_iter().
@ -696,8 +696,8 @@ DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
* drivers this is only provided for backwards compatibility with existing
* drivers, it remaps to controlling the "ACTIVE" property on the CRTC the
* connector is linked to. Drivers should never set this property directly,
* it is handled by the DRM core by calling the ->dpms() callback in
* &drm_connector_funcs. Atomic drivers should implement this hook using
* it is handled by the DRM core by calling the &drm_connector_funcs.dpms
* callback. Atomic drivers should implement this hook using
* drm_atomic_helper_connector_dpms(). This is the only property standard
* connector property that userspace can change.
* PATH:

7
drivers/gpu/drm/drm_crtc.c
View File

@ -415,11 +415,12 @@ int drm_mode_getcrtc(struct drm_device *dev,
}
/**
* drm_mode_set_config_internal - helper to call ->set_config
* drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config
* @set: modeset config to set
*
* This is a little helper to wrap internal calls to the ->set_config driver
* interface. The only thing it adds is correct refcounting dance.
* This is a little helper to wrap internal calls to the
* &drm_mode_config_funcs.set_config driver interface. The only thing it adds is
* correct refcounting dance.
*
* Returns:
* Zero on success, negative errno on failure.

4
drivers/gpu/drm/drm_dumb_buffers.c
View File

@ -42,8 +42,8 @@
* create dumb buffers suitable for scanout, which can then be used to create
* KMS frame buffers.
*
* To support dumb objects drivers must implement the dumb_create,
* dumb_destroy and dumb_map_offset operations from &struct drm_driver. See
* To support dumb objects drivers must implement the &drm_driver.dumb_create,
* &drm_driver.dumb_destroy and &drm_driver.dumb_map_offset operations. See
* there for further details.
*
* Note that dumb objects may not be used for gpu acceleration, as has been

2
drivers/gpu/drm/drm_encoder.c
View File

@ -98,7 +98,7 @@ void drm_encoder_unregister_all(struct drm_device *dev)
*
* Initialises a preallocated encoder. Encoder should be subclassed as part of
* driver encoder objects. At driver unload time drm_encoder_cleanup() should be
* called from the driver's destroy hook in &drm_encoder_funcs.
* called from the driver's &drm_encoder_funcs.destroy hook.
*
* Returns:
* Zero on success, error code on failure.

2
drivers/gpu/drm/drm_encoder_slave.c
View File

@ -43,7 +43,7 @@
* &drm_encoder_slave. The @slave_funcs field will be initialized with
* the hooks provided by the slave driver.
*
* If @info->platform_data is non-NULL it will be used as the initial
* If @info.platform_data is non-NULL it will be used as the initial
* slave config.
*
* Returns 0 on success or a negative errno on failure, in particular,

12
drivers/gpu/drm/drm_framebuffer.c
View File

@ -58,8 +58,8 @@
* fbdev framebuffer when the struct &struct drm_framebuffer is embedded into
* the fbdev helper struct) drivers can manually clean up a framebuffer at
* module unload time with drm_framebuffer_unregister_private(). But doing this
* is not recommended, and it's better to have a normal free-standing struct
* &drm_framebuffer.
* is not recommended, and it's better to have a normal free-standing &struct
* drm_framebuffer.
*/
int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y,
@ -470,7 +470,7 @@ int drm_mode_getfb(struct drm_device *dev,
* usb display-link, mipi manual update panels or edp panel self refresh modes.
*
* Modesetting drivers which always update the frontbuffer do not need to
* implement the corresponding ->dirty framebuffer callback.
* implement the corresponding &drm_framebuffer_funcs.dirty callback.
*
* Called by the user via ioctl.
*
@ -709,10 +709,10 @@ EXPORT_SYMBOL(drm_framebuffer_unregister_private);
* @fb: framebuffer to remove
*
* Cleanup framebuffer. This function is intended to be used from the drivers
* ->destroy callback. It can also be used to clean up driver private
* framebuffers embedded into a larger structure.
* &drm_framebuffer_funcs.destroy callback. It can also be used to clean up
* driver private framebuffers embedded into a larger structure.
*
* Note that this function does not remove the fb from active usuage - if it is
* Note that this function does not remove the fb from active usage - if it is
* still used anywhere, hilarity can ensue since userspace could call getfb on
* the id and get back -EINVAL. Obviously no concern at driver unload time.
*

10
drivers/gpu/drm/drm_modeset_lock.c
View File

@ -33,7 +33,7 @@
* to use &ww_mutex and acquire-contexts to avoid deadlocks. But because
* the locking is more distributed around the driver code, we want a bit
* of extra utility/tracking out of our acquire-ctx. This is provided
* by drm_modeset_lock / drm_modeset_acquire_ctx.
* by &struct drm_modeset_lock and &struct drm_modeset_acquire_ctx.
*
* For basic principles of &ww_mutex, see: Documentation/locking/ww-mutex-design.txt
*
@ -53,7 +53,7 @@
* drm_modeset_acquire_fini(&ctx);
*
* 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.

2
drivers/gpu/drm/drm_plane.c
View File

@ -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().
*

4
drivers/gpu/drm/drm_property.c
View File

@ -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

6
include/drm/drm_atomic.h
View File

@ -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)

2
include/drm/drm_color_mgmt.h
View File

@ -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
*

42
include/drm/drm_connector.h
View File

@ -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;

31
include/drm/drm_crtc.h
View File

@ -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;

15
include/drm/drm_framebuffer.h
View File

@ -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)), \

12
include/drm/drm_mode_config.h
View File

@ -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:
*

13
include/drm/drm_mode_object.h
View File

@ -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];

2
include/drm/drm_modeset_lock.h
View File

@ -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.

22
include/drm/drm_plane.h
View File

@ -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) \

8
include/drm/drm_property.h
View File

@ -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
*