section 9 · Kernel routines 🧠

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D (continued)

drm_dp_tunnel_alloc_bw(9)Allocate BW for a DP tunnel✨
drm_dp_tunnel_atomic_check_stream_bws(9)Check BW limit for all streams in state✨
drm_dp_tunnel_atomic_get_group_streams_in_state(9)Get mask of stream IDs in a group✨
drm_dp_tunnel_atomic_get_new_state(9)get the new atomic state for a tunnel✨
drm_dp_tunnel_atomic_get_old_state(9)get the old atomic state for a tunnel✨
drm_dp_tunnel_atomic_get_required_bw(9)Get the BW required by a DP tunnel✨
drm_dp_tunnel_atomic_get_state(9)get/allocate the new atomic state for a tunnel✨
drm_dp_tunnel_atomic_set_stream_bw(9)Set the BW for a DP tunnel stream✨
drm_dp_tunnel_available_bw(9)Query the estimated total available BW of the tunnel✨
drm_dp_tunnel_bw_alloc_is_enabled(9)Query the BW allocation mode enabled state✨
drm_dp_tunnel_destroy(9)Destroy tunnel object✨
drm_dp_tunnel_detect(9)Detect DP tunnel on the link✨
drm_dp_tunnel_disable_bw_alloc(9)Disable DP tunnel BW allocation mode✨
drm_dp_tunnel_enable_bw_alloc(9)Enable DP tunnel BW allocation mode✨
drm_dp_tunnel_get(9)Get a reference for a DP tunnel✨
drm_dp_tunnel_get_allocated_bw(9)Get the BW allocated for a DP tunnel✨
drm_dp_tunnel_max_dprx_lane_count(9)Query the maximum lane count of the tunnel's DPRX✨
drm_dp_tunnel_max_dprx_rate(9)Query the maximum rate of the tunnel's DPRX✨
drm_dp_tunnel_mgr_create(9)Create a DP tunnel manager✨
drm_dp_tunnel_mgr_destroy(9)Destroy DP tunnel manager✨
drm_dp_tunnel_pr_optimization_supported(9)Query the PR BW optimization support✨
drm_dp_tunnel_put(9)Put a reference for a DP tunnel✨
drm_dp_tunnel_set_io_error(9)Set the IO error flag for a DP tunnel✨
drm_dp_tunnel_update_state(9)Update DP tunnel SW state with the HW state✨
drm_dp_vsc_sdp_pack(9)pack a given vsc sdp into generic dp_sdp✨
drm_dp_vsc_sdp_supported(9)check if vsc sdp is supported✨
drm_draw_can_convert_from_xrgb8888(9)check if xrgb8888 can be converted to the desired format✨
drm_draw_color_from_xrgb8888(9)convert one pixel from xrgb8888 to the desired format✨
drm_driver_color_mode_format(9)Compute DRM 4CC code from color mode✨
drm_driver_legacy_fb_format(9)compute drm fourcc code from legacy description✨
drm_drv_uses_atomic_modeset(9)check if the driver implements atomic_commit()✨
drm_dsc_compute_rc_parameters(9)Write rate control parameters to the dsc configuration defined in &struct drm_dsc_config in accordance with the DSC 1.2 specification. Some configuration fields must be present beforehand.✨
drm_dsc_dp_pps_header_init(9)Initializes the PPS Header for DisplayPort as per the DP 1.4 spec.✨
drm_dsc_dp_rc_buffer_size(9)get rc buffer size in bytes✨
drm_dsc_dump_config(9)Dump the provided DSC configuration✨
drm_dsc_flatness_det_thresh(9)Calculate the flatness_det_thresh for the given DSC config✨
drm_dsc_get_bpp_int(9)Get integer bits per pixel value for the given DRM DSC config✨
drm_dsc_initial_scale_value(9)Calculate the initial scale value for the given DSC config✨
drm_dsc_pps_payload_pack(9)Populates the DSC PPS✨
drm_dsc_set_const_params(9)Set DSC parameters considered typically constant across operation modes✨
drm_dsc_set_rc_buf_thresh(9)Set thresholds for the RC model in accordance with the DSC 1.2 specification.✨
drm_dsc_setup_rc_params(9)Set parameters and limits for RC model in accordance with the DSC 1.1 or 1.2 specification and DSC C Model Required bits_per_pixel and bits_per_component to be set before calling this function.✨
drm_edid_alloc(9)Allocate a new drm_edid container✨
drm_edid_connector_add_modes(9)Update probed modes from the EDID property✨
drm_edid_connector_update(9)Update connector information from EDID✨
drm_edid_decode_mfg_id(9)Decode the manufacturer ID✨
drm_edid_decode_panel_id(9)Decode a panel ID from drm_edid_encode_panel_id()✨
drm_edid_dup(9)Duplicate a drm_edid container✨
drm_edid_duplicate(9)duplicate an EDID and the extensions✨
drm_edid_encode_panel_id(9)Encode an ID for matching against drm_edid_get_panel_id()✨
drm_edid_free(9)Free the drm_edid container✨
drm_edid_get_monitor_name(9)fetch the monitor name from the edid✨
drm_edid_get_panel_id(9)Get a panel's ID from EDID✨
drm_edid_get_product_id(9)Get the vendor and product identification✨
drm_edid_header_is_valid(9)sanity check the header of the base EDID block✨
drm_edid_is_digital(9)is digital?✨
drm_edid_is_valid(9)sanity check EDID data✨
drm_edid_match(9)match drm_edid with given identity✨
drm_edid_override_connector_update(9)add modes from override/firmware EDID✨
drm_edid_print_product_id(9)Print decoded product id to printer✨
drm_edid_raw(9)Get a pointer to the raw EDID data.✨
drm_edid_read(9)Read EDID data using connector's I2C adapter✨
drm_edid_read_base_block(9)Get a panel's EDID base block✨
drm_edid_read_custom(9)Read EDID data using given EDID block read function✨
drm_edid_read_ddc(9)Read EDID data using given I2C adapter✨
drm_edid_read_switcheroo(9)get EDID data for a vga_switcheroo output✨
drm_edid_to_sad(9)extracts SADs from EDID✨
drm_edid_to_speaker_allocation(9)extracts Speaker Allocation Data Blocks from EDID✨
drm_edid_valid(9)sanity check EDID data✨
drm_edp_backlight_disable(9)Disable an eDP backlight using DPCD, if supported✨
drm_edp_backlight_enable(9)Enable an eDP panel's backlight using DPCD✨
drm_edp_backlight_init(9)Probe a display panel's TCON using the standard VESA eDP backlight interface.✨
drm_edp_backlight_set_level(9)Set the backlight level of an eDP panel via AUX✨
drm_edp_backlight_supported(9)Check an eDP DPCD for VESA backlight support✨
drm_eld_calc_baseline_block_size(9)Calculate baseline block size in bytes✨
drm_eld_get_conn_type(9)Get device type hdmi/dp connected✨
drm_eld_get_spk_alloc(9)Get speaker allocation✨
drm_eld_mnl(9)Get ELD monitor name length in bytes.✨
drm_eld_sad(9)Get ELD SAD structures.✨
drm_eld_sad_count(9)Get ELD SAD count.✨
drm_eld_sad_get(9)get SAD from ELD to struct cea_sad✨
drm_eld_sad_set(9)set SAD to ELD from struct cea_sad✨
drm_eld_size(9)Get ELD size in bytes✨
drm_encoder_cleanup(9)cleans up an initialised encoder✨
drm_encoder_crtc_ok(9)can a given crtc drive a given encoder?✨
drm_encoder_find(9)find a &drm_encoder✨
drm_encoder_helper_add(9)sets the helper vtable for an encoder✨
drm_encoder_index(9)find the index of a registered encoder✨
drm_encoder_init(9)Init a preallocated encoder✨
drm_encoder_mask(9)find the mask of a registered encoder✨
drm_err_printer(9)construct a &drm_printer that outputs to drm_err()✨
drm_event_cancel_free(9)free a DRM event and release its space✨
DRM_EVENT_CRTC_SEQUENCE(9)CRTC sequence event✨
DRM_EVENT_FLIP_COMPLETE(9)page-flip completion event✨
drm_event_reserve_init(9)init a DRM event and reserve space for it✨
drm_event_reserve_init_locked(9)init a DRM event and reserve space for it✨
DRM_EVENT_VBLANK(9)vertical blanking event✨
drm_exec_cleanup(9)cleanup when contention is detected✨
drm_exec_fini(9)finalize a drm_exec object✨
drm_exec_for_each_locked_object(9)iterate over all the locked objects✨
drm_exec_for_each_locked_object_reverse(9)iterate over all the locked objects in reverse locking order✨
drm_exec_init(9)initialize a drm_exec object✨
drm_exec_is_contended(9)check for contention✨
drm_exec_lock_obj(9)lock a GEM object for use✨
drm_exec_obj(9)Return the object for a give drm_exec index✨
drm_exec_prepare_array(9)helper to prepare an array of objects✨
drm_exec_prepare_obj(9)prepare a GEM object for use✨
drm_exec_retry(9)Unconditionally restart the loop to grab all locks.✨
drm_exec_retry_on_contention(9)restart the loop to grap all locks✨
drm_exec_ticket(9)return the ww_acquire_ctx for this exec context✨
drm_exec_unlock_obj(9)unlock a GEM object in this exec context✨
drm_exec_until_all_locked(9)loop until all GEM objects are locked✨
drm_fb_argb8888_to_argb4444(9)Convert ARGB8888 to ARGB4444 clip buffer✨
drm_fb_clip_offset(9)Returns the clipping rectangles byte-offset in a framebuffer✨
drm_fb_dma_get_gem_addr(9)Get DMA (bus) address for framebuffer, for pixel formats where values are grouped in blocks this will get you the beginning of the block✨
drm_fb_dma_get_gem_obj(9)Get DMA GEM object for framebuffer✨
drm_fb_dma_get_scanout_buffer(9)Provide a scanout buffer in case of panic✨
drm_fb_dma_sync_non_coherent(9)Sync GEM object to non-coherent backing memory✨
drm_fb_helper_blank(9)implementation for &fb_ops.fb_blank✨
drm_fb_helper_check_var(9)implementation for &fb_ops.fb_check_var✨
DRM_FB_HELPER_DEFAULT_OPS(9)helper define for drm drivers✨
drm_fb_helper_deferred_io(9)fbdev deferred_io callback function✨
drm_fb_helper_fill_info(9)initializes fbdev information✨
drm_fb_helper_fini(9)finialize a &struct drm_fb_helper✨
drm_fb_helper_gem_is_fb(9)Tests if GEM object is framebuffer✨
drm_fb_helper_hotplug_event(9)respond to a hotplug notification by probing all the outputs attached to the fb✨
drm_fb_helper_init(9)initialize a &struct drm_fb_helper✨
drm_fb_helper_initial_config(9)setup a sane initial connector configuration✨
drm_fb_helper_ioctl(9)legacy ioctl implementation✨
drm_fb_helper_pan_display(9)implementation for &fb_ops.fb_pan_display✨
drm_fb_helper_prepare(9)setup a drm_fb_helper structure✨
drm_fb_helper_restore_fbdev_mode_unlocked(9)restore fbdev configuration✨
drm_fb_helper_set_par(9)implementation for &fb_ops.fb_set_par✨
drm_fb_helper_set_suspend(9)wrapper around fb_set_suspend✨
drm_fb_helper_set_suspend_unlocked(9)wrapper around fb_set_suspend that also takes the console lock✨
drm_fb_helper_setcmap(9)implementation for &fb_ops.fb_setcmap✨
drm_fb_helper_unprepare(9)clean up a drm_fb_helper structure✨
drm_fb_helper_unregister_info(9)unregister fb_info framebuffer device✨
drm_fb_memcpy(9)Copy clip buffer✨
drm_fb_release(9)remove and free the FBs on this file✨
drm_fb_swab(9)Swap bytes into clip buffer✨
drm_fb_xrgb8888_to_abgr8888(9)Convert XRGB8888 to ABGR8888 clip buffer✨
drm_fb_xrgb8888_to_argb1555(9)Convert XRGB8888 to ARGB1555 clip buffer✨
drm_fb_xrgb8888_to_argb2101010(9)Convert XRGB8888 to ARGB2101010 clip buffer✨
drm_fb_xrgb8888_to_argb8888(9)Convert XRGB8888 to ARGB8888 clip buffer✨
drm_fb_xrgb8888_to_bgr888(9)Convert XRGB8888 to BGR888 clip buffer✨
drm_fb_xrgb8888_to_bgrx8888(9)Convert XRGB8888 to BGRX8888 clip buffer✨
drm_fb_xrgb8888_to_gray2(9)Convert XRGB8888 to gray2✨
drm_fb_xrgb8888_to_gray8(9)Convert XRGB8888 to grayscale✨
drm_fb_xrgb8888_to_mono(9)Convert XRGB8888 to monochrome✨
drm_fb_xrgb8888_to_rgb332(9)Convert XRGB8888 to RGB332 clip buffer✨
drm_fb_xrgb8888_to_rgb565(9)Convert XRGB8888 to RGB565 clip buffer✨
drm_fb_xrgb8888_to_rgb565be(9)Convert XRGB8888 to RGB565|DRM_FORMAT_BIG_ENDIAN clip buffer✨
drm_fb_xrgb8888_to_rgb888(9)Convert XRGB8888 to RGB888 clip buffer✨
drm_fb_xrgb8888_to_rgba5551(9)Convert XRGB8888 to RGBA5551 clip buffer✨
drm_fb_xrgb8888_to_xbgr8888(9)Convert XRGB8888 to XBGR8888 clip buffer✨
drm_fb_xrgb8888_to_xrgb1555(9)Convert XRGB8888 to XRGB1555 clip buffer✨
drm_fb_xrgb8888_to_xrgb2101010(9)Convert XRGB8888 to XRGB2101010 clip buffer✨
drm_fbdev_client_setup(9)Setup fbdev emulation✨
drm_file_alloc(9)allocate file context✨
drm_file_err(9)log process name, pid and client_name associated with a drm_file✨
drm_file_free(9)free file context✨
drm_file_get_master(9)reference &drm_file.master of @file_priv✨
drm_flip_work_cleanup(9)cleans up flip-work✨
drm_flip_work_commit(9)commit queued work✨
drm_flip_work_init(9)initialize flip-work✨
drm_flip_work_queue(9)queue work✨
drm_for_each_bridge_in_chain(9)iterate over all bridges attached to an encoder✨
drm_for_each_bridge_in_chain_from(9)iterate over all bridges starting from the given bridge✨
drm_for_each_connector_iter(9)connector_list iterator macro✨
drm_for_each_crtc(9)iterate over all CRTCs✨
drm_for_each_crtc_reverse(9)iterate over all CRTCs in reverse order✨
drm_for_each_encoder(9)iterate over all encoders✨
drm_for_each_encoder_mask(9)iterate over encoders specified by bitmask✨
drm_for_each_legacy_plane(9)iterate over all planes for legacy userspace✨
drm_for_each_plane(9)iterate over all planes✨
drm_for_each_plane_mask(9)iterate over planes specified by bitmask✨
drm_for_each_privobj(9)private object iterator✨
drm_format_conv_state_copy(9)Copy format-conversion state✨
DRM_FORMAT_CONV_STATE_INIT(9)Initializer for struct drm_format_conv_state✨
drm_format_conv_state_init(9)Initialize format-conversion state✨
DRM_FORMAT_CONV_STATE_INIT_PREALLOCATED(9)Initializer for struct drm_format_conv_state✨
drm_format_conv_state_release(9)Releases an format-conversion storage✨
drm_format_conv_state_reserve(9)Allocates storage for format conversion✨
drm_format_info(9)query information for a given format✨
drm_format_info_block_height(9)height in pixels of a block✨
drm_format_info_block_width(9)width in pixels of block.✨
drm_format_info_bpp(9)number of bits per pixel✨
drm_format_info_is_yuv_packed(9)check that the format info matches a YUV format with data laid in a single plane✨
drm_format_info_is_yuv_planar(9)check that the format info matches a YUV format with data laid in three planes (one for each YUV component)✨
drm_format_info_is_yuv_sampling_410(9)check that the format info matches a YUV format with 4:1:0 sub-sampling✨
drm_format_info_is_yuv_sampling_411(9)check that the format info matches a YUV format with 4:1:1 sub-sampling✨
drm_format_info_is_yuv_sampling_420(9)check that the format info matches a YUV format with 4:2:0 sub-sampling✨
drm_format_info_is_yuv_sampling_422(9)check that the format info matches a YUV format with 4:2:2 sub-sampling✨
drm_format_info_is_yuv_sampling_444(9)check that the format info matches a YUV format with 4:4:4 sub-sampling✨
drm_format_info_is_yuv_semiplanar(9)check that the format info matches a YUV format with data laid in two planes (luminance and chrominance)✨
drm_format_info_min_pitch(9)computes the minimum required pitch in bytes✨
drm_format_info_plane_height(9)height of the plane given the first plane✨
drm_format_info_plane_width(9)width of the plane given the first plane✨
DRM_FORMAT_MAX_PLANES(9)maximum number of planes a DRM format can have✨