struct drm_clip_rect;
struct device_node;
struct fence;
+struct edid;
struct drm_mode_object {
uint32_t id;
const struct drm_crtc_state *state,
struct drm_property *property,
uint64_t *val);
+
+ /**
+ * @late_register:
+ *
+ * This optional hook can be used to register additional userspace
+ * interfaces attached to the crtc like debugfs interfaces.
+ * It is called late in the driver load sequence from drm_dev_register().
+ * Everything added from this callback should be unregistered in
+ * the early_unregister callback.
+ *
+ * Returns:
+ *
+ * 0 on success, or a negative error code on failure.
+ */
+ int (*late_register)(struct drm_crtc *crtc);
+
+ /**
+ * @early_unregister:
+ *
+ * This optional hook should be used to unregister the additional
+ * userspace interfaces attached to the crtc from
+ * late_unregister(). It is called from drm_dev_unregister(),
+ * early in the driver unload sequence to disable userspace access
+ * before data structures are torndown.
+ */
+ void (*early_unregister)(struct drm_crtc *crtc);
};
/**
* @gamma_store: gamma ramp values
* @helper_private: mid-layer private data
* @properties: property tracking for this CRTC
- * @state: current atomic state for this CRTC
- * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
- * legacy IOCTLs
*
* Each CRTC may have one or more connectors associated with it. This structure
* allows the CRTC to be controlled.
struct drm_object_properties properties;
+ /**
+ * @state:
+ *
+ * Current atomic state for this CRTC.
+ */
struct drm_crtc_state *state;
- /*
- * For legacy crtc IOCTLs so that atomic drivers can get at the locking
- * acquire context.
+ /**
+ * @commit_list:
+ *
+ * List of &drm_crtc_commit structures tracking pending commits.
+ * Protected by @commit_lock. This list doesn't hold its own full
+ * reference, but burrows it from the ongoing commit. Commit entries
+ * must be removed from this list once the commit is fully completed,
+ * but before it's correspoding &drm_atomic_state gets destroyed.
+ */
+ struct list_head commit_list;
+
+ /**
+ * @commit_lock:
+ *
+ * Spinlock to protect @commit_list.
+ */
+ spinlock_t commit_lock;
+
+ /**
+ * @acquire_ctx:
+ *
+ * Per-CRTC implicit acquire context used by atomic drivers for legacy
+ * IOCTLs, so that atomic drivers can get at the locking acquire
+ * context.
*/
struct drm_modeset_acquire_ctx *acquire_ctx;
};
int (*set_property)(struct drm_connector *connector, struct drm_property *property,
uint64_t val);
+ /**
+ * @late_register:
+ *
+ * This optional hook can be used to register additional userspace
+ * interfaces attached to the connector, light backlight control, i2c,
+ * DP aux or similar interfaces. It is called late in the driver load
+ * sequence from drm_connector_register() when registering all the
+ * core drm connector interfaces. Everything added from this callback
+ * should be unregistered in the early_unregister callback.
+ *
+ * Returns:
+ *
+ * 0 on success, or a negative error code on failure.
+ */
+ int (*late_register)(struct drm_connector *connector);
+
+ /**
+ * @early_unregister:
+ *
+ * This optional hook should be used to unregister the additional
+ * userspace interfaces attached to the connector from
+ * late_unregister(). It is called from drm_connector_unregister(),
+ * early in the driver unload sequence to disable userspace access
+ * before data structures are torndown.
+ */
+ void (*early_unregister)(struct drm_connector *connector);
+
/**
* @destroy:
*
* hotplugged in DRM.
*/
void (*destroy)(struct drm_encoder *encoder);
+
+ /**
+ * @late_register:
+ *
+ * This optional hook can be used to register additional userspace
+ * interfaces attached to the encoder like debugfs interfaces.
+ * It is called late in the driver load sequence from drm_dev_register().
+ * Everything added from this callback should be unregistered in
+ * the early_unregister callback.
+ *
+ * Returns:
+ *
+ * 0 on success, or a negative error code on failure.
+ */
+ int (*late_register)(struct drm_encoder *encoder);
+
+ /**
+ * @early_unregister:
+ *
+ * This optional hook should be used to unregister the additional
+ * userspace interfaces attached to the encoder from
+ * late_unregister(). It is called from drm_dev_unregister(),
+ * early in the driver unload sequence to disable userspace access
+ * before data structures are torndown.
+ */
+ void (*early_unregister)(struct drm_encoder *encoder);
};
#define DRM_CONNECTOR_MAX_ENCODER 3
* @interlace_allowed: can this connector handle interlaced modes?
* @doublescan_allowed: can this connector handle doublescan?
* @stereo_allowed: can this connector handle stereo modes?
+ * @registered: is this connector exposed (registered) with userspace?
* @modes: modes available on this connector (from fill_modes() + user)
* @status: one of the drm_connector_status enums (connected, not, or unknown)
* @probed_modes: list of modes derived directly from the display
bool interlace_allowed;
bool doublescan_allowed;
bool stereo_allowed;
+ bool registered;
struct list_head modes; /* list of modes on this connector */
enum drm_connector_status status;
const struct drm_plane_state *state,
struct drm_property *property,
uint64_t *val);
+ /**
+ * @late_register:
+ *
+ * This optional hook can be used to register additional userspace
+ * interfaces attached to the plane like debugfs interfaces.
+ * It is called late in the driver load sequence from drm_dev_register().
+ * Everything added from this callback should be unregistered in
+ * the early_unregister callback.
+ *
+ * Returns:
+ *
+ * 0 on success, or a negative error code on failure.
+ */
+ int (*late_register)(struct drm_plane *plane);
+
+ /**
+ * @early_unregister:
+ *
+ * This optional hook should be used to unregister the additional
+ * userspace interfaces attached to the plane from
+ * late_unregister(). It is called from drm_dev_unregister(),
+ * early in the driver unload sequence to disable userspace access
+ * before data structures are torndown.
+ */
+ void (*early_unregister)(struct drm_plane *plane);
};
enum drm_plane_type {
void *driver_private;
};
+/**
+ * struct drm_crtc_commit - track modeset commits on a CRTC
+ *
+ * This structure is used to track pending modeset changes and atomic commit on
+ * a per-CRTC basis. Since updating the list should never block this structure
+ * is reference counted to allow waiters to safely wait on an event to complete,
+ * without holding any locks.
+ *
+ * It has 3 different events in total to allow a fine-grained synchronization
+ * between outstanding updates::
+ *
+ * atomic commit thread hardware
+ *
+ * write new state into hardware ----> ...
+ * signal hw_done
+ * switch to new state on next
+ * ... v/hblank
+ *
+ * wait for buffers to show up ...
+ *
+ * ... send completion irq
+ * irq handler signals flip_done
+ * cleanup old buffers
+ *
+ * signal cleanup_done
+ *
+ * wait for flip_done <----
+ * clean up atomic state
+ *
+ * The important bit to know is that cleanup_done is the terminal event, but the
+ * ordering between flip_done and hw_done is entirely up to the specific driver
+ * and modeset state change.
+ *
+ * For an implementation of how to use this look at
+ * drm_atomic_helper_setup_commit() from the atomic helper library.
+ */
+struct drm_crtc_commit {
+ /**
+ * @crtc:
+ *
+ * DRM CRTC for this commit.
+ */
+ struct drm_crtc *crtc;
+
+ /**
+ * @ref:
+ *
+ * Reference count for this structure. Needed to allow blocking on
+ * completions without the risk of the completion disappearing
+ * meanwhile.
+ */
+ struct kref ref;
+
+ /**
+ * @flip_done:
+ *
+ * Will be signaled when the hardware has flipped to the new set of
+ * buffers. Signals at the same time as when the drm event for this
+ * commit is sent to userspace, or when an out-fence is singalled. Note
+ * that for most hardware, in most cases this happens after @hw_done is
+ * signalled.
+ */
+ struct completion flip_done;
+
+ /**
+ * @hw_done:
+ *
+ * Will be signalled when all hw register changes for this commit have
+ * been written out. Especially when disabling a pipe this can be much
+ * later than than @flip_done, since that can signal already when the
+ * screen goes black, whereas to fully shut down a pipe more register
+ * I/O is required.
+ *
+ * Note that this does not need to include separately reference-counted
+ * resources like backing storage buffer pinning, or runtime pm
+ * management.
+ */
+ struct completion hw_done;
+
+ /**
+ * @cleanup_done:
+ *
+ * Will be signalled after old buffers have been cleaned up by calling
+ * drm_atomic_helper_cleanup_planes(). Since this can only happen after
+ * a vblank wait completed it might be a bit later. This completion is
+ * useful to throttle updates and avoid hardware updates getting ahead
+ * of the buffer cleanup too much.
+ */
+ struct completion cleanup_done;
+
+ /**
+ * @commit_entry:
+ *
+ * Entry on the per-CRTC commit_list. Protected by crtc->commit_lock.
+ */
+ struct list_head commit_entry;
+
+ /**
+ * @event:
+ *
+ * &drm_pending_vblank_event pointer to clean up private events.
+ */
+ struct drm_pending_vblank_event *event;
+};
+
struct __drm_planes_state {
struct drm_plane *ptr;
struct drm_plane_state *state;
struct __drm_crtcs_state {
struct drm_crtc *ptr;
struct drm_crtc_state *state;
+ struct drm_crtc_commit *commit;
};
struct __drm_connnectors_state {
struct __drm_connnectors_state *connectors;
struct drm_modeset_acquire_ctx *acquire_ctx;
+
+ /**
+ * @commit_work:
+ *
+ * Work item which can be used by the driver or helpers to execute the
+ * commit without blocking.
+ */
+ struct work_struct commit_work;
};
* @async_page_flip: does this device support async flips on the primary plane?
* @cursor_width: hint to userspace for max cursor width
* @cursor_height: hint to userspace for max cursor height
+ * @helper_private: mid-layer private data
*
* Core mode resource tracking structure. All CRTC, encoders, and connectors
* enumerated by the driver are added here, as are global properties. Some
/* cursor size */
uint32_t cursor_width, cursor_height;
+
+ struct drm_mode_config_helper_funcs *helper_private;
};
/**
return 1 << drm_crtc_index(crtc);
}
-extern void drm_connector_ida_init(void);
-extern void drm_connector_ida_destroy(void);
-extern int drm_connector_init(struct drm_device *dev,
- struct drm_connector *connector,
- const struct drm_connector_funcs *funcs,
- int connector_type);
+int drm_connector_init(struct drm_device *dev,
+ struct drm_connector *connector,
+ const struct drm_connector_funcs *funcs,
+ int connector_type);
int drm_connector_register(struct drm_connector *connector);
void drm_connector_unregister(struct drm_connector *connector);
extern int drm_connector_register_all(struct drm_device *dev);
extern void drm_connector_unregister_all(struct drm_device *dev);
-extern int drm_bridge_add(struct drm_bridge *bridge);
-extern void drm_bridge_remove(struct drm_bridge *bridge);
-extern struct drm_bridge *of_drm_find_bridge(struct device_node *np);
-extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge);
-
-bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
-void drm_bridge_disable(struct drm_bridge *bridge);
-void drm_bridge_post_disable(struct drm_bridge *bridge);
-void drm_bridge_mode_set(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
-void drm_bridge_pre_enable(struct drm_bridge *bridge);
-void drm_bridge_enable(struct drm_bridge *bridge);
-
extern __printf(5, 6)
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
}
extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx);
extern void drm_plane_force_disable(struct drm_plane *plane);
-extern int drm_plane_check_pixel_format(const struct drm_plane *plane,
- u32 format);
extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
int *hdisplay, int *vdisplay);
-extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
- int x, int y,
- const struct drm_display_mode *mode,
- const struct drm_framebuffer *fb);
extern void drm_encoder_cleanup(struct drm_encoder *encoder);
extern const char *drm_get_dvi_i_select_name(int val);
extern const char *drm_get_tv_subconnector_name(int val);
extern const char *drm_get_tv_select_name(int val);
-extern void drm_fb_release(struct drm_file *file_priv);
-extern void drm_property_destroy_user_blobs(struct drm_device *dev,
- struct drm_file *file_priv);
-extern bool drm_probe_ddc(struct i2c_adapter *adapter);
-extern struct edid *drm_get_edid(struct drm_connector *connector,
- struct i2c_adapter *adapter);
-extern struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
- struct i2c_adapter *adapter);
-extern struct edid *drm_edid_duplicate(const struct edid *edid);
-extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
extern void drm_mode_config_init(struct drm_device *dev);
extern void drm_mode_config_reset(struct drm_device *dev);
extern void drm_mode_config_cleanup(struct drm_device *dev);
return property->flags & type;
}
-static inline bool drm_property_type_valid(struct drm_property *property)
-{
- if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
- return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
- return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
-}
-
extern int drm_object_property_set_value(struct drm_mode_object *obj,
struct drm_property *property,
uint64_t val);
extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
-extern bool drm_property_change_valid_get(struct drm_property *property,
- uint64_t value, struct drm_mode_object **ref);
-extern void drm_property_change_valid_put(struct drm_property *property,
- struct drm_mode_object *ref);
extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
int gamma_size);
-extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
- uint32_t id, uint32_t type);
-void drm_mode_object_reference(struct drm_mode_object *obj);
-void drm_mode_object_unreference(struct drm_mode_object *obj);
-/* IOCTLs */
-extern int drm_mode_getresources(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_mode_getcrtc(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getconnector(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
extern int drm_mode_set_config_internal(struct drm_mode_set *set);
-extern int drm_mode_setcrtc(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getplane(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_setplane(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_cursor_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_addfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_addfb2(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
+
extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
-extern int drm_mode_rmfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-
-extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_createblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_destroyblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_getencoder(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
-extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
-extern bool drm_detect_hdmi_monitor(struct edid *edid);
-extern bool drm_detect_monitor_audio(struct edid *edid);
-extern bool drm_rgb_quant_range_selectable(struct edid *edid);
-extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_add_modes_noedid(struct drm_connector *connector,
- int hdisplay, int vdisplay);
-extern void drm_set_preferred_mode(struct drm_connector *connector,
- int hpref, int vpref);
-
-extern int drm_edid_header_is_valid(const u8 *raw_edid);
-extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
- bool *edid_corrupt);
-extern bool drm_edid_is_valid(struct edid *edid);
-extern void drm_edid_get_monitor_name(struct edid *edid, char *name,
- int buflen);
extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
char topology[8]);
char topology[8]);
extern void drm_mode_put_tile_group(struct drm_device *dev,
struct drm_tile_group *tg);
-struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
- int hsize, int vsize, int fresh,
- bool rb);
-extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
struct drm_property *property,
uint64_t value);
-extern int drm_mode_atomic_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-
-extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
- int *bpp);
-extern int drm_format_num_planes(uint32_t format);
-extern int drm_format_plane_cpp(uint32_t format, int plane);
-extern int drm_format_horz_chroma_subsampling(uint32_t format);
-extern int drm_format_vert_chroma_subsampling(uint32_t format);
-extern int drm_format_plane_width(int width, uint32_t format, int plane);
-extern int drm_format_plane_height(int height, uint32_t format, int plane);
-extern const char *drm_get_format_name(uint32_t format);
+
extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
unsigned int supported_rotations);
extern unsigned int drm_rotation_simplify(unsigned int rotation,
unsigned int supported_rotations);
-
+extern void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
+ uint degamma_lut_size,
+ bool has_ctm,
+ uint gamma_lut_size);
/* Helpers */
+struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
+ uint32_t id, uint32_t type);
+void drm_mode_object_reference(struct drm_mode_object *obj);
+void drm_mode_object_unreference(struct drm_mode_object *obj);
static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
uint32_t id)
&fb->head != (&(dev)->mode_config.fb_list); \
fb = list_next_entry(fb, head))
+/* drm_edid.c */
+bool drm_probe_ddc(struct i2c_adapter *adapter);
+struct edid *drm_get_edid(struct drm_connector *connector,
+ struct i2c_adapter *adapter);
+struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
+ struct i2c_adapter *adapter);
+struct edid *drm_edid_duplicate(const struct edid *edid);
+int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
+
+u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
+enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
+bool drm_detect_hdmi_monitor(struct edid *edid);
+bool drm_detect_monitor_audio(struct edid *edid);
+bool drm_rgb_quant_range_selectable(struct edid *edid);
+int drm_add_modes_noedid(struct drm_connector *connector,
+ int hdisplay, int vdisplay);
+void drm_set_preferred_mode(struct drm_connector *connector,
+ int hpref, int vpref);
+
+int drm_edid_header_is_valid(const u8 *raw_edid);
+bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
+ bool *edid_corrupt);
+bool drm_edid_is_valid(struct edid *edid);
+void drm_edid_get_monitor_name(struct edid *edid, char *name,
+ int buflen);
+struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
+ int hsize, int vsize, int fresh,
+ bool rb);
+
+/* drm_bridge.c */
+extern int drm_bridge_add(struct drm_bridge *bridge);
+extern void drm_bridge_remove(struct drm_bridge *bridge);
+extern struct drm_bridge *of_drm_find_bridge(struct device_node *np);
+extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge);
+
+bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode);
+void drm_bridge_disable(struct drm_bridge *bridge);
+void drm_bridge_post_disable(struct drm_bridge *bridge);
+void drm_bridge_mode_set(struct drm_bridge *bridge,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode);
+void drm_bridge_pre_enable(struct drm_bridge *bridge);
+void drm_bridge_enable(struct drm_bridge *bridge);
+
#endif /* __DRM_CRTC_H__ */
projects / karo-tx-linux.git / blobdiff