drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h

Extension

.h

Size

1798 bytes

Lines

51

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

• core_types.h
• dchubbub.h

Detected Declarations

• struct dcn_vmid_registers
• struct dcn_vmid_page_table_config

Annotated Snippet

struct dcn_vmid_registers {
	uint32_t CNTL;
	uint32_t PAGE_TABLE_BASE_ADDR_HI32;
	uint32_t PAGE_TABLE_BASE_ADDR_LO32;
	uint32_t PAGE_TABLE_START_ADDR_HI32;
	uint32_t PAGE_TABLE_START_ADDR_LO32;
	uint32_t PAGE_TABLE_END_ADDR_HI32;
	uint32_t PAGE_TABLE_END_ADDR_LO32;
};

struct dcn_vmid_page_table_config {
	uint64_t	page_table_start_addr;
	uint64_t	page_table_end_addr;
	enum dcn_hubbub_page_table_depth	depth;
	enum dcn_hubbub_page_table_block_size	block_size;
	uint64_t	page_table_base_addr;
};

#endif /* DAL_DC_INC_HW_VMID_H_ */

Annotation

• Immediate include surface: `core_types.h`, `dchubbub.h`.
• Detected declarations: `struct dcn_vmid_registers`, `struct dcn_vmid_page_table_config`.
• 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.