drivers/gpu/drm/amd/display/dc/hwss/dcn42/dcn42_init.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/hwss/dcn42/dcn42_init.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/hwss/dcn42/dcn42_init.c
Extension
.c
Size
8349 bytes
Lines
176
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: MIT
//
// Copyright 2026 Advanced Micro Devices, Inc.

#include "dce110/dce110_hwseq.h"
#include "dcn10/dcn10_hwseq.h"
#include "dcn20/dcn20_hwseq.h"
#include "dcn21/dcn21_hwseq.h"
#include "dcn30/dcn30_hwseq.h"
#include "dcn31/dcn31_hwseq.h"
#include "dcn32/dcn32_hwseq.h"
#include "dcn314/dcn314_hwseq.h"
#include "dcn35/dcn35_hwseq.h"
#include "dcn401/dcn401_hwseq.h"
#include "dcn42/dcn42_hwseq.h"
#include "dcn42_init.h"

static const struct hw_sequencer_funcs dcn42_funcs = {
	.program_gamut_remap = dcn401_program_gamut_remap,
	.init_hw = dcn42_init_hw,
	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
	.power_down_on_boot = dcn42_power_down_on_boot,
	.apply_ctx_for_surface = NULL,
	.program_front_end_for_ctx = dcn401_program_front_end_for_ctx,
	.clear_surface_dcc_and_tiling = dcn10_reset_surface_dcc_and_tiling,
	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
	.post_unlock_program_front_end = dcn401_post_unlock_program_front_end,
	.update_plane_addr = dcn20_update_plane_addr,
	.update_dchub = dcn10_update_dchub,
	.update_pending_status = dcn10_update_pending_status,
	.program_output_csc = dcn20_program_output_csc,
	.trigger_3dlut_dma_load = dcn401_trigger_3dlut_dma_load,
	.enable_accelerated_mode = dce110_enable_accelerated_mode,
	.enable_timing_synchronization = dcn10_enable_timing_synchronization,
	.enable_per_frame_crtc_position_reset = dcn10_enable_per_frame_crtc_position_reset,
	.update_info_frame = dcn31_update_info_frame,
	.send_immediate_sdp_message = dcn10_send_immediate_sdp_message,
	.enable_stream = dcn401_enable_stream,
	.disable_stream = dce110_disable_stream,
	.unblank_stream = dcn401_unblank_stream,
	.blank_stream = dce110_blank_stream,
	.enable_audio_stream = dce110_enable_audio_stream,
	.disable_audio_stream = dce110_disable_audio_stream,
	.disable_plane = dcn35_disable_plane,
	.pipe_control_lock = dcn20_pipe_control_lock,
	.interdependent_update_lock = dcn401_interdependent_update_lock,
	.cursor_lock = dcn10_cursor_lock,
	.prepare_bandwidth = dcn42_prepare_bandwidth,
	.optimize_bandwidth = dcn42_optimize_bandwidth,
	.update_bandwidth = dcn401_update_bandwidth,
	.set_drr = dcn35_set_drr,
	.get_position = dcn10_get_position,
	.set_static_screen_control = dcn35_set_static_screen_control,
	.setup_stereo = dcn42_setup_stereo,
	.set_avmute = dcn30_set_avmute,
	.log_hw_state = dcn10_log_hw_state,
	.get_hw_state = dcn10_get_hw_state,
	.clear_status_bits = dcn10_clear_status_bits,
	.wait_for_mpcc_disconnect = dcn10_wait_for_mpcc_disconnect,
	.edp_backlight_control = dce110_edp_backlight_control,
	.edp_power_control = dce110_edp_power_control,
	.edp_wait_for_hpd_ready = dce110_edp_wait_for_hpd_ready,
	.edp_wait_for_T12 = dce110_edp_wait_for_T12,
	.set_cursor_position = dcn401_set_cursor_position,
	.set_cursor_attribute = dcn10_set_cursor_attribute,
	.set_cursor_sdr_white_level = dcn10_set_cursor_sdr_white_level,
	.abort_cursor_offload_update = dcn35_abort_cursor_offload_update,
	.begin_cursor_offload_update = dcn35_begin_cursor_offload_update,
	.commit_cursor_offload_update = dcn35_commit_cursor_offload_update,
	.update_cursor_offload_pipe = dcn401_update_cursor_offload_pipe,
	.notify_cursor_offload_drr_update = dcn35_notify_cursor_offload_drr_update,
	.program_cursor_offload_now = dcn35_program_cursor_offload_now,
	.setup_periodic_interrupt = dcn10_setup_periodic_interrupt,
	.set_clock = dcn10_set_clock,
	.get_clock = dcn10_get_clock,
	.program_triplebuffer = dcn20_program_triple_buffer,
	.enable_writeback = dcn30_enable_writeback,
	.disable_writeback = dcn30_disable_writeback,
	.update_writeback = dcn30_update_writeback,
	.dmdata_status_done = dcn20_dmdata_status_done,
	.program_dmdata_engine = dcn30_program_dmdata_engine,
	.set_dmdata_attributes = dcn20_set_dmdata_attributes,
	.init_sys_ctx = dcn31_init_sys_ctx,
	.init_vm_ctx = dcn20_init_vm_ctx,
	.set_flip_control_gsl = dcn20_set_flip_control_gsl,
	.get_vupdate_offset_from_vsync = dcn10_get_vupdate_offset_from_vsync,
	.calc_vupdate_position = dcn10_calc_vupdate_position,
	.setup_hdmi_frl_link = dcn30_setup_hdmi_frl_link,
	.apply_idle_power_optimizations = dcn35_apply_idle_power_optimizations,
	.does_plane_fit_in_mall = NULL,

Annotation

Implementation Notes