drivers/gpu/drm/xe/xe_gt_topology.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/xe_gt_topology.c

Extension

.c

Size

10564 bytes

Lines

352

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

• xe_gt_topology.h
• generated/xe_wa_oob.h
• linux/bitmap.h
• linux/compiler.h
• regs/xe_gt_regs.h
• xe_assert.h
• xe_gt.h
• xe_gt_mcr.h
• xe_gt_printk.h
• xe_mmio.h
• xe_wa.h

Detected Declarations

• function load_dss_mask
• function load_eu_mask
• function gen_l3_mask_from_pattern
• function xe_gt_topology_report_l3
• function load_l3_bank_mask
• function xe_gt_topology_init
• function xe_gt_topology_dump
• function group
• function xe_l3_bank_mask_ffs
• function xe_gt_topology_has_dss_in_quadrant
• function xe_gt_has_geometry_dss
• function xe_gt_has_compute_dss
• function xe_gt_has_discontiguous_dss_groups
• function for_each_dss_steering

Annotated Snippet

if (last_group != group) {
			if (group - last_group > 1)
				return true;
			last_group = group;
		}
	}
	return false;
}

Annotation

• Immediate include surface: `xe_gt_topology.h`, `generated/xe_wa_oob.h`, `linux/bitmap.h`, `linux/compiler.h`, `regs/xe_gt_regs.h`, `xe_assert.h`, `xe_gt.h`, `xe_gt_mcr.h`.
• Detected declarations: `function load_dss_mask`, `function load_eu_mask`, `function gen_l3_mask_from_pattern`, `function xe_gt_topology_report_l3`, `function load_l3_bank_mask`, `function xe_gt_topology_init`, `function xe_gt_topology_dump`, `function group`, `function xe_l3_bank_mask_ffs`, `function xe_gt_topology_has_dss_in_quadrant`.
• 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.