tools/perf/pmu-events/arch/arm64/ampere/ampereone/core-imp-def.json
Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/arch/arm64/ampere/ampereone/core-imp-def.json
File Facts
- System
- Linux kernel
- Corpus path
tools/perf/pmu-events/arch/arm64/ampere/ampereone/core-imp-def.json- Extension
.json- Size
- 22691 bytes
- Lines
- 579
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: configuration, schema, or hardware description
- Status
- atlas-only
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
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
[
{
"PublicDescription": "Level 2 prefetch requests, refilled to L2 cache",
"EventCode": "0x10A",
"EventName": "L2_PREFETCH_REFILL",
"BriefDescription": "Level 2 prefetch requests, refilled to L2 cache"
},
{
"PublicDescription": "Level 2 prefetch requests, late",
"EventCode": "0x10B",
"EventName": "L2_PREFETCH_UPGRADE",
"BriefDescription": "Level 2 prefetch requests, late"
},
{
"PublicDescription": "Predictable branch speculatively executed that hit any level of BTB",
"EventCode": "0x110",
"EventName": "BPU_HIT_BTB",
"BriefDescription": "Predictable branch speculatively executed that hit any level of BTB"
},
{
"PublicDescription": "Predictable conditional branch speculatively executed that hit any level of BTB",
"EventCode": "0x111",
"EventName": "BPU_CONDITIONAL_BRANCH_HIT_BTB",
"BriefDescription": "Predictable conditional branch speculatively executed that hit any level of BTB"
},
{
"PublicDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the indirect predictor",
"EventCode": "0x112",
"EventName": "BPU_HIT_INDIRECT_PREDICTOR",
"BriefDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the indirect predictor"
},
{
"PublicDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the return predictor",
"EventCode": "0x113",
"EventName": "BPU_HIT_RSB",
"BriefDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the return predictor"
},
{
"PublicDescription": "Predictable unconditional branch speculatively executed that did not hit any level of BTB",
"EventCode": "0x114",
"EventName": "BPU_UNCONDITIONAL_BRANCH_MISS_BTB",
"BriefDescription": "Predictable unconditional branch speculatively executed that did not hit any level of BTB"
},
{
"PublicDescription": "Predictable branch speculatively executed, unpredicted",
"EventCode": "0x115",
"EventName": "BPU_BRANCH_NO_HIT",
"BriefDescription": "Predictable branch speculatively executed, unpredicted"
},
{
"PublicDescription": "Predictable branch speculatively executed that hit any level of BTB that mispredict",
"EventCode": "0x116",
"EventName": "BPU_HIT_BTB_AND_MISPREDICT",
"BriefDescription": "Predictable branch speculatively executed that hit any level of BTB that mispredict"
},
{
"PublicDescription": "Predictable conditional branch speculatively executed that hit any level of BTB that (direction) mispredict",
"EventCode": "0x117",
"EventName": "BPU_CONDITIONAL_BRANCH_HIT_BTB_AND_MISPREDICT",
"BriefDescription": "Predictable conditional branch speculatively executed that hit any level of BTB that (direction) mispredict"
},
{
"PublicDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the indirect predictor that mispredict",
"EventCode": "0x118",
"EventName": "BPU_INDIRECT_BRANCH_HIT_BTB_AND_MISPREDICT",
"BriefDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the indirect predictor that mispredict"
},
{
"PublicDescription": "Predictable taken branch speculatively executed that hit any level of BTB that access the return predictor that mispredict",
"EventCode": "0x119",
Annotation
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: atlas-only.
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.