drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_shared_types.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_shared_types.h

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_shared_types.h
Extension: .h
Size: 91063 bytes
Lines: 2350
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.

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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

dml2_external_lib_deps.h
dml_top_display_cfg_types.h
dml_top_types.h
lib_frl_cap_check.h

Detected Declarations

struct dml2_core_ip_params
struct dml2_core_internal_DmlPipe
struct dml2_core_internal_watermarks
struct dml2_core_internal_mode_support_info
struct dml2_core_internal_mode_support
struct dml2_core_internal_mode_program
struct dml2_core_internal_SOCParametersList
struct dml2_core_calcs_mode_support_locals
struct dml2_core_calcs_mode_programming_locals
struct dml2_core_calcs_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport_locals
struct dml2_core_calcs_CalculateVMRowAndSwath_locals
struct dml2_core_calcs_CalculateVMRowAndSwath_params
struct dml2_core_calcs_CalculatePrefetchSchedule_locals
struct dml2_core_shared_calculate_det_buffer_size_params
struct dml2_core_shared_calculate_vm_and_row_bytes_params
struct dml2_core_shared_CalculateSwathAndDETConfiguration_locals
struct dml2_core_shared_TruncToValidBPP_locals
struct dml2_core_shared_CalculateDETBufferSize_locals
struct dml2_core_shared_get_urgent_bandwidth_required_locals
struct dml2_core_shared_calculate_peak_bandwidth_required_locals
struct dml2_core_shared_CalculateFlipSchedule_locals
struct dml2_core_shared_rq_dlg_get_dlg_reg_locals
struct dml2_core_shared_CalculateMetaAndPTETimes_params
struct dml2_core_calcs_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport_params
struct dml2_core_calcs_CalculateSwathAndDETConfiguration_params
struct dml2_core_calcs_CalculateStutterEfficiency_locals
struct dml2_core_calcs_CalculateStutterEfficiency_params
struct dml2_core_calcs_CalculatePrefetchSchedule_params
struct dml2_core_calcs_CheckGlobalPrefetchAdmissibility_params
struct dml2_core_calcs_CheckGlobalPrefetchAdmissibility_locals
struct dml2_core_calcs_calculate_mcache_row_bytes_params
struct dml2_core_shared_calculate_mcache_setting_locals
struct dml2_core_calcs_calculate_mcache_setting_params
struct dml2_core_calcs_calculate_tdlut_setting_params
struct dml2_core_calcs_calculate_peak_bandwidth_required_params
struct dml2_core_calcs_calculate_bytes_to_fetch_required_to_hide_latency_params
struct dml2_core_shared_calculation_funcs
struct dml2_core_internal_scratch
struct dml2_core_internal_display_mode_lib
struct dml2_core_calcs_mode_support_ex
struct core_display_cfg_support_info
struct dml2_core_calcs_mode_programming_ex
enum dml2_core_internal_request_type
enum dml2_core_internal_bw_type
enum dml2_core_internal_soc_state_type
enum dml2_core_internal_output_type
enum dml2_core_internal_output_type_rate

Annotated Snippet

struct dml2_core_ip_params {
	unsigned int vblank_nom_default_us;
	unsigned int remote_iommu_outstanding_translations;
	unsigned int rob_buffer_size_kbytes;
	unsigned int config_return_buffer_size_in_kbytes;
	unsigned int config_return_buffer_segment_size_in_kbytes;
	unsigned int compressed_buffer_segment_size_in_kbytes;
	unsigned int meta_fifo_size_in_kentries;
	unsigned int dpte_buffer_size_in_pte_reqs_luma;
	unsigned int dpte_buffer_size_in_pte_reqs_chroma;
	unsigned int pixel_chunk_size_kbytes;
	unsigned int alpha_pixel_chunk_size_kbytes;
	unsigned int min_pixel_chunk_size_bytes;
	unsigned int writeback_chunk_size_kbytes;
	unsigned int line_buffer_size_bits;
	unsigned int max_line_buffer_lines;
	unsigned int writeback_interface_buffer_size_kbytes;
	unsigned int max_num_dpp;
	unsigned int max_num_opp;
	unsigned int max_num_otg;
	unsigned int TDLUT_33cube_count;
	unsigned int max_num_wb;
	unsigned int max_dchub_pscl_bw_pix_per_clk;
	unsigned int max_pscl_lb_bw_pix_per_clk;
	unsigned int max_lb_vscl_bw_pix_per_clk;
	unsigned int max_vscl_hscl_bw_pix_per_clk;
	double max_hscl_ratio;
	double max_vscl_ratio;
	unsigned int max_hscl_taps;
	unsigned int max_vscl_taps;
	unsigned int odm_combine_support_mask;
	unsigned int num_dsc;
	unsigned int maximum_dsc_bits_per_component;
	unsigned int maximum_pixels_per_line_per_dsc_unit;
	bool dsc422_native_support;
	bool cursor_64bpp_support;
	double dispclk_ramp_margin_percent;
	unsigned int dppclk_delay_subtotal;
	unsigned int dppclk_delay_scl;
	unsigned int dppclk_delay_scl_lb_only;
	unsigned int dppclk_delay_cnvc_formatter;
	unsigned int dppclk_delay_cnvc_cursor;
	unsigned int cursor_buffer_size;
	unsigned int cursor_chunk_size;
	unsigned int dispclk_delay_subtotal;
	bool dynamic_metadata_vm_enabled;
	unsigned int max_inter_dcn_tile_repeaters;
	unsigned int max_num_hdmi_frl_outputs;
	unsigned int max_num_dp2p0_outputs;
	unsigned int max_num_dp2p0_streams;
	bool dcc_supported;
	bool ptoi_supported;
	double writeback_max_hscl_ratio;
	double writeback_max_vscl_ratio;
	double writeback_min_hscl_ratio;
	double writeback_min_vscl_ratio;
	unsigned int writeback_max_hscl_taps;
	unsigned int writeback_max_vscl_taps;
	unsigned int writeback_line_buffer_buffer_size;

	unsigned int words_per_channel;
	bool imall_supported;
	unsigned int max_flip_time_us;
	unsigned int max_flip_time_lines;
	unsigned int subvp_swath_height_margin_lines;
	unsigned int subvp_fw_processing_delay_us;
	unsigned int subvp_pstate_allow_width_us;
	// MRQ
	bool dcn_mrq_present;
	unsigned int zero_size_buffer_entries;
	unsigned int compbuf_reserved_space_zs;
	unsigned int dcc_meta_buffer_size_bytes;
	unsigned int meta_chunk_size_kbytes;
	unsigned int min_meta_chunk_size_bytes;

	unsigned int dchub_arb_to_ret_delay; // num of dcfclk
	unsigned int hostvm_mode;
};

struct dml2_core_internal_DmlPipe {
	double Dppclk;
	double Dispclk;
	double PixelClock;
	double DCFClkDeepSleep;
	unsigned int DPPPerSurface;
	bool ScalerEnabled;
	bool UPSPEnabled;
	unsigned int UPSPVTaps;
	enum dml2_sample_positioning UPSPSamplePositioning;
	enum dml2_rotation_angle RotationAngle;

Annotation

Immediate include surface: `dml2_external_lib_deps.h`, `dml_top_display_cfg_types.h`, `dml_top_types.h`, `lib_frl_cap_check.h`.
Detected declarations: `struct dml2_core_ip_params`, `struct dml2_core_internal_DmlPipe`, `struct dml2_core_internal_watermarks`, `struct dml2_core_internal_mode_support_info`, `struct dml2_core_internal_mode_support`, `struct dml2_core_internal_mode_program`, `struct dml2_core_internal_SOCParametersList`, `struct dml2_core_calcs_mode_support_locals`, `struct dml2_core_calcs_mode_programming_locals`, `struct dml2_core_calcs_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport_locals`.
Atlas domain: Driver Families / drivers/gpu.
Implementation status: source implementation candidate.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.