drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.h

Extension

.h

Size

2190 bytes

Lines

55

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

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __DML30_DISPLAY_MODE_VBA_H__
#define __DML30_DISPLAY_MODE_VBA_H__

void dml30_recalculate(struct display_mode_lib *mode_lib);
void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib);
double dml30_CalculateWriteBackDISPCLK(
		enum source_format_class WritebackPixelFormat,
		double PixelClock,
		double WritebackHRatio,
		double WritebackVRatio,
		unsigned int WritebackHTaps,
		unsigned int WritebackVTaps,
		long   WritebackSourceWidth,
		long   WritebackDestinationWidth,
		unsigned int HTotal,
		unsigned int WritebackLineBufferSize);
void dml30_CalculateBytePerPixelAnd256BBlockSizes(
		enum source_format_class SourcePixelFormat,
		enum dm_swizzle_mode SurfaceTiling,
		unsigned int *BytePerPixelY,
		unsigned int *BytePerPixelC,
		double       *BytePerPixelDETY,
		double       *BytePerPixelDETC,
		unsigned int *BlockHeight256BytesY,
		unsigned int *BlockHeight256BytesC,
		unsigned int *BlockWidth256BytesY,
		unsigned int *BlockWidth256BytesC);

#endif /* __DML30_DISPLAY_MODE_VBA_H__ */

Annotation

• 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.