tools/testing/selftests/kvm/include/arm64/delay.h
Source file repositories/reference/linux-study-clean/tools/testing/selftests/kvm/include/arm64/delay.h
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/kvm/include/arm64/delay.h- Extension
.h- Size
- 471 bytes
- Lines
- 26
- 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.
Dependency Surface
arch_timer.h
Detected Declarations
function __delayfunction udelay
Annotated Snippet
#ifndef SELFTEST_KVM_ARM_DELAY_H
#define SELFTEST_KVM_ARM_DELAY_H
#include "arch_timer.h"
static inline void __delay(u64 cycles)
{
enum arch_timer timer = VIRTUAL;
u64 start = timer_get_cntct(timer);
while ((timer_get_cntct(timer) - start) < cycles)
cpu_relax();
}
static inline void udelay(unsigned long usec)
{
__delay(usec_to_cycles(usec));
}
#endif /* SELFTEST_KVM_ARM_DELAY_H */
Annotation
- Immediate include surface: `arch_timer.h`.
- Detected declarations: `function __delay`, `function udelay`.
- 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.