drivers/gpu/drm/amd/display/dc/dcn30/dcn30_vpg.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_vpg.c

Extension

.c

Size

6973 bytes

Lines

265

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

• dc_bios_types.h
• dcn30_vpg.h
• reg_helper.h

Detected Declarations

• function files
• function vpg3_construct

Annotated Snippet

switch (packet_index) {
		case 0:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC0_IMMEDIATE_UPDATE, 1);
			break;
		case 1:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC1_IMMEDIATE_UPDATE, 1);
			break;
		case 2:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC2_IMMEDIATE_UPDATE, 1);
			break;
		case 3:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC3_IMMEDIATE_UPDATE, 1);
			break;
		case 4:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC4_IMMEDIATE_UPDATE, 1);
			break;
		case 5:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC5_IMMEDIATE_UPDATE, 1);
			break;
		case 6:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC6_IMMEDIATE_UPDATE, 1);
			break;
		case 7:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC7_IMMEDIATE_UPDATE, 1);
			break;
		case 8:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC8_IMMEDIATE_UPDATE, 1);
			break;
		case 9:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC9_IMMEDIATE_UPDATE, 1);
			break;
		case 10:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC10_IMMEDIATE_UPDATE, 1);
			break;
		case 11:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC11_IMMEDIATE_UPDATE, 1);
			break;
		case 12:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC12_IMMEDIATE_UPDATE, 1);
			break;
		case 13:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC13_IMMEDIATE_UPDATE, 1);
			break;
		case 14:
			REG_UPDATE(VPG_GSP_IMMEDIATE_UPDATE_CTRL,
					VPG_GENERIC14_IMMEDIATE_UPDATE, 1);
			break;
		default:
			break;
		}
	} else {
		switch (packet_index) {
		case 0:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC0_FRAME_UPDATE, 1);
			break;
		case 1:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC1_FRAME_UPDATE, 1);
			break;
		case 2:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC2_FRAME_UPDATE, 1);
			break;
		case 3:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC3_FRAME_UPDATE, 1);
			break;
		case 4:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC4_FRAME_UPDATE, 1);
			break;
		case 5:
			REG_UPDATE(VPG_GSP_FRAME_UPDATE_CTRL,
					VPG_GENERIC5_FRAME_UPDATE, 1);
			break;

Annotation

• Immediate include surface: `dc_bios_types.h`, `dcn30_vpg.h`, `reg_helper.h`.
• Detected declarations: `function files`, `function vpg3_construct`.
• 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.