drivers/gpu/drm/amd/display/dc/dcn20/dcn20_vmid.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_vmid.h

Extension

.h

Size

3260 bytes

Lines

78

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

• vmid.h

Detected Declarations

• struct dcn20_vmid_shift
• struct dcn20_vmid_mask
• struct dcn20_vmid

Annotated Snippet

struct dcn20_vmid_shift {
	DCN20_VMID_REG_FIELD_LIST(uint8_t);
};

struct dcn20_vmid_mask {
	DCN20_VMID_REG_FIELD_LIST(uint32_t);
};

struct dcn20_vmid {
	struct dc_context *ctx;
	const struct dcn_vmid_registers *regs;
	const struct dcn20_vmid_shift *shifts;
	const struct dcn20_vmid_mask *masks;
};

void dcn20_vmid_setup(struct dcn20_vmid *vmid, const struct dcn_vmid_page_table_config *config);

#endif /* DAL_DC_DCN20_DCN20_VMID_H_ */

Annotation

• Immediate include surface: `vmid.h`.
• Detected declarations: `struct dcn20_vmid_shift`, `struct dcn20_vmid_mask`, `struct dcn20_vmid`.
• 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.