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PTO-ARCH-DATA-TYPES-MEMORY-MODEL

PTO-ARCH-DATA-TYPES-MEMORY-MODEL

ASL 伪代码

下面直接显示完整的 ASL 所有者。

// PTO-UNIT: {"id":"PTO-ARCH-DATA-TYPES-MEMORY-MODEL","surface":"arch","classification":["data-types","memory-model"],"depends_on":["PTO-BLOCK-MODEL-STATE-TYPES"]}type DataAccessProbe of record {    fault: FaultCode,    translated_address: Word};
type MemoryOrder of enumeration {    MemoryOrder_Relaxed,    MemoryOrder_Acquire,    MemoryOrder_Release,    MemoryOrder_AcquireRelease};
type MemoryAgentId of integer {0..PTO_MODEL_MEMORY_AGENTS-1};type MemoryEventIndex of integer {0..PTO_MODEL_MEMORY_EVENTS-1};type MemoryCoherenceRank of integer {0..PTO_MODEL_MEMORY_EVENTS-1};
type MemoryEventKind of enumeration {    MemoryEvent_InitialWrite,    MemoryEvent_Load,    MemoryEvent_Store,    MemoryEvent_Atomic,    MemoryEvent_Fence};
type MemoryEvent of record {    kind: MemoryEventKind,    agent: MemoryAgentId,    address: Word,    size_bytes: integer {1,2,4,8},    read_value: Word,    write_value: Word,    write_performed: boolean,    order: MemoryOrder,    read_from: MemoryEventIndex,    coherence_rank: MemoryCoherenceRank,    fence_predecessor: bits(4),    fence_successor: bits(4)};
type MemoryRelationMatrix of array [[PTO_MODEL_MEMORY_EVENTS]]    of bits(PTO_MODEL_MEMORY_EVENTS);

架构行为

目的与范围

目的与范围

本单元定义表示数据访问探测、内存顺序、内存事件和事件关系所需的记录与枚举。

这些类型为可执行的内存归属单元提供统一词汇，但本身不决定一个完整执行是否可接受。

概念与架构状态

概念与可见状态

  • DataAccessProbe 将 FaultCode 与转换后的 Word 地址组成一条记录。
  • MemoryOrder 区分 Relaxed、Acquire、Release 和 AcquireRelease；MemoryEventKind 区分初始写、加载、存储、原子操作和屏障事件。
  • MemoryEvent 记录执行体、地址、大小、读写值、是否执行写入、顺序、读自索引、一致性序位以及屏障前驱/后继掩码。
规则与交互

规则与交互

内存事件大小只能是 1、2、4 或 8 字节。

执行体 ID、事件索引和一致性序位分别受 PTO_MODEL_MEMORY_AGENTS 与 PTO_MODEL_MEMORY_EVENTS 限定。

MemoryRelationMatrix 为每个建模事件保存一行关系，其类型为 bits(PTO_MODEL_MEMORY_EVENTS)。

边界与未定义范围

架构边界

这些声明只规定表示形式，不规定排序接受条件。程序顺序、读自有效性、一致性、屏障和环检测由内存排序 ASL 归属单元定义。

PTO_MODEL_MEMORY_EVENTS 是模型边界，不是硬件可移植的最大事件数。

使用示例

示例性阅读示例

MemoryEvent_Load 条目通过 read_from 携带来源；执行写入的事件通过 coherence_rank 携带一致性序位。排序归属单元会在完整关系集合中验证这两个字段。

调试内存结果时，应先检查事件记录，再沿其中的索引查看排序归属单元构建的关系矩阵。

NDF 条款

正文来自 owning ASL。拖拽或按钮只临时改变当前页面显示顺序。

No NDF clause is attached to this unit.

Evidence index

6 matching entries

Executable evidence1
  • PTO-ARCH-DATA-TYPES-MEMORY-MODEL compiles as an independent normative unit
    1. surfaceARCH
    2. ownerPTO-ARCH-DATA-TYPES-MEMORY-MODEL
    3. categorySTATIC-INVARIANT
    4. case001
    Show exact test source
    Sources and references
    Complete stable ID
    PTO-AVS-ARCH-DATA-TYPES-MEMORY-MODEL-STATIC-001
    Path
    tests/asl/arch/data-types/memory-model/arch-static-memory-model-contract-001.asl
    Kind / role
    static-invariant
    Pass condition
    the complete model and this unit's static invariant compile
    SHA-256
    b4828cc364d64df5ae3c3a22ee9dcaa6b6e1daf43106b39f9b4daffd0c697738
    Open exact source ↗ for PTO-AVS-ARCH-DATA-TYPES-MEMORY-MODEL-STATIC-001
Commit-scoped evidence5
  • spec/evidence/release-traceability-readiness.json · closedPTO-EVIDENCE-RELEASE-TRACEABILITY
    Sources and references
    Complete stable ID
    PTO-EVIDENCE-RELEASE-TRACEABILITY
    Path
    spec/evidence/release-traceability-readiness.json
    Kind / role
    ASL/NDF/documentation/AVS traceability
    SHA-256
    c7327021d39dc67ac5564bc55073b3870a397d79ac8d9648284d56e33bc14a3e
    Open exact source ↗ for PTO-EVIDENCE-RELEASE-TRACEABILITY
  • spec/evidence/instruction-contract-closure.json · closedPTO-EVIDENCE-INSTRUCTION-CONTRACT-CLOSURE
    Sources and references
    Complete stable ID
    PTO-EVIDENCE-INSTRUCTION-CONTRACT-CLOSURE
    Path
    spec/evidence/instruction-contract-closure.json
    Kind / role
    mnemonic and encoding contract closure
    SHA-256
    3ef2bb62421c79dff8fa77a1c7983923b523244b8090812883ef81286ca8106a
    Open exact source ↗ for PTO-EVIDENCE-INSTRUCTION-CONTRACT-CLOSURE
  • spec/evidence/architecture-readiness.json · openPTO-EVIDENCE-ARCHITECTURE-READINESS
    Sources and references
    Complete stable ID
    PTO-EVIDENCE-ARCHITECTURE-READINESS
    Path
    spec/evidence/architecture-readiness.json
    Kind / role
    architecture maturity and blockers
    SHA-256
    4b0b85199101251bea744e0f3591cc31906909dc80d5ab651c417a936036a004
    Open exact source ↗ for PTO-EVIDENCE-ARCHITECTURE-READINESS
  • spec/evidence/release-gate-readiness.json · ready-for-exact-head-verificationPTO-EVIDENCE-RELEASE-GATE-READINESS
    Sources and references
    Complete stable ID
    PTO-EVIDENCE-RELEASE-GATE-READINESS
    Path
    spec/evidence/release-gate-readiness.json
    Kind / role
    exact-head gate readiness
    SHA-256
    a0f4d2b6920c08981ea55fd8ef820708a40d4feb5402c5150e8e9ab532d84ce0
    Open exact source ↗ for PTO-EVIDENCE-RELEASE-GATE-READINESS
  • spec/release-manifest.json · draftPTO-EVIDENCE-RELEASE-MANIFEST
    Sources and references
    Complete stable ID
    PTO-EVIDENCE-RELEASE-MANIFEST
    Path
    spec/release-manifest.json
    Kind / role
    release content and encoding fingerprints
    SHA-256
    1a64c109ed7a90351c41e2a418b3c0ebaf8ad975838986d2101385186b85c0d8
    Open exact source ↗ for PTO-EVIDENCE-RELEASE-MANIFEST

Unit metadata

Open 4 generated metadata fields
id
PTO-ARCH-DATA-TYPES-MEMORY-MODEL
surface
arch
classification
[
  "data-types",
  "memory-model"
]
depends_on
[
  "PTO-BLOCK-MODEL-STATE-TYPES"
]
Open generated traceability record
{
  "classification": [
    "data-types",
    "memory-model"
  ],
  "documentation": "docs/arch/data-types/memory-model.md",
  "id": "PTO-ARCH-DATA-TYPES-MEMORY-MODEL",
  "mnemonic": null,
  "readiness_subjects": [],
  "semantic_tests": [],
  "source": "asl/arch/data-types/memory-model.asl",
  "surface": "arch",
  "tests": [
    "PTO-AVS-ARCH-DATA-TYPES-MEMORY-MODEL-STATIC-001"
  ]
}

来源与发布信息

展开 commit、路径、hash、版本和规范所有者
发布
0.58.5 · 候选发布
Commit
7dc8b7e5b121d2b2499a2273bebff29e2cd86812
原始 ASL
asl/arch/data-types/memory-model.asl
ASL SHA-256
dd4adb80d037bc6e6b9b87dd53b8f4ccf6cda4a4fcd648c2874074d8587312d7
生成文档
docs/site/i18n/zh-CN/docusaurus-plugin-content-docs-reference/current/arch/data-types/memory-model.md · 已融合到当前页面
文档 SHA-256
6ad02fc1582b50034b0e3aba0e5798fdcebefd95edb101a915d358aa3ebe6625

精确所有者