tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c

Extension

.c

Size

1850 bytes

Lines

93

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: implementation source

Status

source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• stdio.h
• stdlib.h
• stdbool.h
• ebb.h

Detected Declarations

• function cycles_with_mmcr2
• function main

Annotated Snippet

if (val != expected[i % 2]) {
			bad_mmcr2 = true;
			actual = val;
		}

		i++;
	}

	ebb_global_disable();
	ebb_freeze_pmcs();

	dump_ebb_state();

	event_close(&event);

	FAIL_IF(ebb_state.stats.ebb_count == 0);

	if (bad_mmcr2)
		printf("Bad MMCR2 value seen is 0x%lx\n", actual);

	FAIL_IF(bad_mmcr2);

	return 0;
}

int main(void)
{
	return test_harness(cycles_with_mmcr2, "cycles_with_mmcr2");
}

Annotation

• Immediate include surface: `stdio.h`, `stdlib.h`, `stdbool.h`, `ebb.h`.
• Detected declarations: `function cycles_with_mmcr2`, `function main`.
• Atlas domain: Support Tooling And Documentation / tools.
• 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.