drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c

Extension

.c

Size

4080 bytes

Lines

176

Domain

Driver Families

Bucket

drivers/gpu

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/fs.h
• drm/drm_print.h
• gt/intel_gt_debugfs.h
• intel_guc.h
• intel_guc_log.h
• intel_guc_log_debugfs.h
• intel_uc.h

Detected Declarations

• function obj_to_guc_log_dump_size
• function guc_log_dump_size
• function guc_log_dump_show
• function guc_load_err_dump_size
• function guc_load_err_log_dump_show
• function guc_log_level_get
• function guc_log_level_set
• function guc_log_relay_open
• function guc_log_relay_write
• function guc_log_relay_release
• function intel_guc_log_debugfs_register

Annotated Snippet

static const struct file_operations guc_log_relay_fops = {
	.owner = THIS_MODULE,
	.open = guc_log_relay_open,
	.write = guc_log_relay_write,
	.release = guc_log_relay_release,
};

void intel_guc_log_debugfs_register(struct intel_guc_log *log,
				    struct dentry *root)
{
	static const struct intel_gt_debugfs_file files[] = {
		{ .name = "guc_log_dump", .fops = &guc_log_dump_fops },
		{ .name = "guc_load_err_log_dump", .fops = &guc_load_err_log_dump_fops},
		{ .name = "guc_log_level", .fops = &guc_log_level_fops },
		{ .name = "guc_log_relay", .fops = &guc_log_relay_fops },
	};

	if (!intel_guc_is_supported(log_to_guc(log)))
		return;

	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), log);
}

Annotation

• Immediate include surface: `linux/fs.h`, `drm/drm_print.h`, `gt/intel_gt_debugfs.h`, `intel_guc.h`, `intel_guc_log.h`, `intel_guc_log_debugfs.h`, `intel_uc.h`.
• Detected declarations: `function obj_to_guc_log_dump_size`, `function guc_log_dump_size`, `function guc_log_dump_show`, `function guc_load_err_dump_size`, `function guc_load_err_log_dump_show`, `function guc_log_level_get`, `function guc_log_level_set`, `function guc_log_relay_open`, `function guc_log_relay_write`, `function guc_log_relay_release`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: pattern 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.