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PTO-ARCH-SYSTEM-REGISTERS-TIMER

PTO-ARCH-SYSTEM-REGISTERS-TIMER

ASL 伪代码

下面直接显示完整的 ASL 所有者。

// PTO-UNIT: {"id":"PTO-ARCH-SYSTEM-REGISTERS-TIMER","surface":"arch","classification":["system-registers","timer"],"depends_on":["PTO-ARCH-SYSTEM-REGISTERS-CONTEXT"]}pure func TimerInterruptId(ring: AccessControlRing) => InterruptIDbegin    return if ring == 0 then 1 else 3;end;
func RefreshTimerPending(ring: AccessControlRing)begin    let comparison = _ExtendedSystemRegisters[[        ContextRegisterIndex(ring, 0x0f21)]];    let interrupt_id = TimerInterruptId(ring);    if comparison != Zeros{PTO_XLEN} &&       UInt(_SystemRegisters.cycle) >= UInt(comparison) then        SetInterruptPending(ring, interrupt_id);    else        ClearInterruptPending(ring, interrupt_id);    end;end;

架构行为

目的与范围

用途与范围

本单元定义每个 ACR 的定时器中断 ID，以及根据周期计数器与比较寄存器推导定时器待处理状态的规则。

概念与架构状态

定时器标识与比较值

TimerInterruptId 对 ACR0 返回中断 ID 1，对其他每个 ACR 返回中断 ID 3。

RefreshTimerPending 从上下文寄存器低位索引 0x0f21 读取比较值，并把它和 _SystemRegisters.cycle 作为无符号值比较。

规则与交互

待处理状态规则

当比较值非零且周期值大于或等于它时，定时器中断被设为待处理。否则，定时器中断被清除。

更新使用 SetInterruptPending 或 ClearInterruptPending，因此也会刷新最高优先待处理中断值。

边界与未定义范围

架构边界

比较值为零时不会置位定时器待处理状态，即使周期值为零或更大。本所有者不递增周期计数器，也不定义除调用 RefreshTimerPending 之外的定时器刷新时机。

使用示例

示例性阈值示例

在一次定时器刷新中，对于比较值为 100 的 ACR0，周期值 99 及以下保持中断 ID 1 清零。周期值达到 100 后设置 ID 1，直到比较值变为零或大于当前周期值。

相关所有者

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

12 matching entries

Executable evidence2
  • PTO-ARCH-SYSTEM-REGISTERS-TIMER compiles as an independent normative unit
    1. surfaceARCH
    2. ownerPTO-ARCH-SYSTEM-REGISTERS-TIMER
    3. categorySTATIC-INVARIANT
    4. case001
    Show exact test source
    Sources and references
    Complete stable ID
    PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-STATIC-001
    Path
    tests/asl/arch/system-registers/timer/arch-static-timer-contract-001.asl
    Kind / role
    static-invariant
    Pass condition
    the complete model and this unit's static invariant compile
    SHA-256
    b84ab7ae6eb6e6b83e7d18f5db0b9188562f1527b78dfbda7dfdd41dfd238770
    Open exact source ↗ for PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-STATIC-001
  • timer refresh uses the per-ring interrupt ID and a nonzero inclusive cycle threshold
    1. surfaceARCH
    2. ownerPTO-ARCH-SYSTEM-REGISTERS-TIMER
    3. categorySTATE-TRANSITION
    4. case001
    Show exact test source
    Sources and references
    Complete stable ID
    PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-THRESHOLD-001
    Path
    tests/asl/arch/system-registers/timer/arch-state-timer-threshold-001.asl
    Kind / role
    state-transition
    Pass condition
    zero and unmet comparisons clear pending while equality sets the correct per-ring timer interrupt
    SHA-256
    f8563376ee4683301ae6c5448dda2e3b550a2632cf6a1992c98401c5c4248609
    Open exact source ↗ for PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-THRESHOLD-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
Decision history5
  • Use PTO-owned system-register names · accepted
    1. decision recordADR
    2. case0003

    Decision record

    Loading ADR-0003…

    Sources and references
    Complete stable ID
    ADR-0003
    Path
    docs/status/decisions/0003-pto-owned-system-register-names.md
    Affected units
    PTO-ARCH-SYSTEM-REGISTERS-ACCESS-CONTROL, PTO-ARCH-SYSTEM-REGISTERS-ADDRESSING, PTO-ARCH-SYSTEM-REGISTERS-CONTEXT, PTO-ARCH-SYSTEM-REGISTERS-INTERRUPT, PTO-ARCH-SYSTEM-REGISTERS-MAINTENANCE, PTO-ARCH-SYSTEM-REGISTERS-TIMER, PTO-SCALAR-C-SSRGET, PTO-SCALAR-HL-SSRGET, PTO-SCALAR-HL-SSRSET, PTO-SCALAR-SSRGET, PTO-SCALAR-SSRSET, PTO-SCALAR-SSRSWAP
    Affected NDF
    PTO-C-SSRGET-DIRECT-IDS-001, PTO-HL-SSRGET-DECISION-BINDING-001, PTO-HL-SSRSET-DECISION-BINDING-001, PTO-SSRGET-ADR-CONTRACT-001, PTO-SSRSET-ADR-CONTRACT-001, PTO-SSRSWAP-ADR-CONTRACT-001
    SHA-256
    c6a5379776c3b29c25f0896bc56f84d8f5c15832bbba0859b822aa99a65e342d
    Open exact decision source ↗ for ADR-0003
  • PTO v0 ACR routing and context reset · accepted
    1. decision recordADR
    2. case0010

    Decision record

    Loading ADR-0010…

    Sources and references
    Complete stable ID
    ADR-0010
    Path
    docs/status/decisions/0010-acr-routing-and-context-reset.md
    Affected units
    PTO-ARCH-PROFILE-RESET, PTO-ARCH-PROGRAMMING-MODEL-EXECUTION-CONTEXT, PTO-ARCH-SYSTEM-REGISTERS-ACCESS-CONTROL, PTO-ARCH-SYSTEM-REGISTERS-ADDRESSING, PTO-ARCH-SYSTEM-REGISTERS-CONTEXT, PTO-ARCH-SYSTEM-REGISTERS-INTERRUPT, PTO-ARCH-SYSTEM-REGISTERS-MAINTENANCE, PTO-ARCH-SYSTEM-REGISTERS-TIMER
    Affected NDF
    PTO-REQ-STATE-001
    SHA-256
    7594432a33c54880227fa3ab495bf5b29d406ac3b4e83634ffefe0a713e85f35
    Open exact decision source ↗ for ADR-0010
  • Define interrupt pending and timer state · accepted
    1. decision recordADR
    2. case0016

    Decision record

    Loading ADR-0016…

    Sources and references
    Complete stable ID
    ADR-0016
    Path
    docs/status/decisions/0016-interrupt-pending-and-timer-state.md
    Affected units
    PTO-ARCH-OVERVIEW-ARCHITECTURE, PTO-ARCH-SYSTEM-REGISTERS-INTERRUPT, PTO-ARCH-SYSTEM-REGISTERS-TIMER
    Affected NDF
    PTO-ARCH-COMMIT-EVENT-CONFORMANCE-001, PTO-ARCH-STATE-CLOSURE-001, PTO-RELEASE-VERIFICATION, PTO-SOURCE-HIERARCHY, PTO-TILE-CAPACITY-PER-PE
    SHA-256
    d864e76e1cd097d55d05e36cc28adc756a2b2cc46df5720a6f6afa5b3f9b9fe0
    Open exact decision source ↗ for ADR-0016
  • Classify every visible system register behavior · accepted
    1. decision recordADR
    2. case0017

    Decision record

    Loading ADR-0017…

    Sources and references
    Complete stable ID
    ADR-0017
    Path
    docs/status/decisions/0017-system-register-behavior-classes.md
    Affected units
    PTO-ARCH-OVERVIEW-ARCHITECTURE, PTO-ARCH-SYSTEM-REGISTERS-ACCESS-CONTROL, PTO-ARCH-SYSTEM-REGISTERS-ADDRESSING, PTO-ARCH-SYSTEM-REGISTERS-CONTEXT, PTO-ARCH-SYSTEM-REGISTERS-INTERRUPT, PTO-ARCH-SYSTEM-REGISTERS-MAINTENANCE, PTO-ARCH-SYSTEM-REGISTERS-TIMER
    Affected NDF
    PTO-ARCH-COMMIT-EVENT-CONFORMANCE-001, PTO-ARCH-STATE-CLOSURE-001, PTO-RELEASE-VERIFICATION, PTO-SOURCE-HIERARCHY, PTO-TILE-CAPACITY-PER-PE
    SHA-256
    6b4f7a29546952e4c5c61b0f4f921b04ecbc8340ba4ad86619277f17da97f95f
    Open exact decision source ↗ for ADR-0017
  • Scalar SYS totality and PTO-v0 profile boundaries · accepted
    1. decision recordADR
    2. case0031

    Decision record

    Loading ADR-0031…

    Sources and references
    Complete stable ID
    ADR-0031
    Path
    docs/status/decisions/0031-scalar-sys-totality-and-profile-boundaries.md
    Affected units
    PTO-ARCH-SYSTEM-REGISTERS-ACCESS-CONTROL, PTO-ARCH-SYSTEM-REGISTERS-ADDRESSING, PTO-ARCH-SYSTEM-REGISTERS-CONTEXT, PTO-ARCH-SYSTEM-REGISTERS-INTERRUPT, PTO-ARCH-SYSTEM-REGISTERS-MAINTENANCE, PTO-ARCH-SYSTEM-REGISTERS-TIMER, PTO-SCALAR-ACRC, PTO-SCALAR-ACRE, PTO-SCALAR-ASSERT, PTO-SCALAR-BC-IALL, PTO-SCALAR-BC-IVA, PTO-SCALAR-BSE, PTO-SCALAR-BWE, PTO-SCALAR-BWI, PTO-SCALAR-BWT, PTO-SCALAR-C-EBREAK, PTO-SCALAR-C-SSRGET, PTO-SCALAR-DC-CISW, PTO-SCALAR-DC-CIVA, PTO-SCALAR-DC-CSW, PTO-SCALAR-DC-CVA, PTO-SCALAR-DC-IALL, PTO-SCALAR-DC-ISW, PTO-SCALAR-DC-IVA, PTO-SCALAR-DC-ZVA, PTO-SCALAR-EBREAK, PTO-SCALAR-FENCE-D, PTO-SCALAR-FENCE-I, PTO-SCALAR-HL-SSRGET, PTO-SCALAR-HL-SSRSET, PTO-SCALAR-IC-IALL, PTO-SCALAR-IC-IVA, PTO-SCALAR-LSRGET, PTO-SCALAR-SETC-TGT, PTO-SCALAR-SSRGET, PTO-SCALAR-SSRSET, PTO-SCALAR-SSRSWAP, PTO-SCALAR-TLB-IA, PTO-SCALAR-TLB-IALL, PTO-SCALAR-TLB-IAV, PTO-SCALAR-TLB-IV
    Affected NDF
    PTO-ACRC-DECISION-BINDING-001, PTO-ACRE-IMPLICIT-STOP-001, PTO-BSE-DECISION-BINDING-001, PTO-BWE-DECISION-BINDING-001, PTO-BWI-DECISION-BINDING-001, PTO-BWT-DECISION-BINDING-001, PTO-C-EBREAK-CAUSE-001, PTO-C-SSRGET-DIRECT-IDS-001, PTO-EBREAK-DECISION-BINDING-001, PTO-FENCE-D-DECISION-BINDING-001, PTO-FENCE-I-DECISION-BINDING-001, PTO-HL-SSRGET-DECISION-BINDING-001, PTO-HL-SSRSET-DECISION-BINDING-001, PTO-LSRGET-BARG-001, PTO-SETC-TGT-ADR-CONTRACT-001, PTO-SSRGET-ADR-CONTRACT-001, PTO-SSRSET-ADR-CONTRACT-001, PTO-SSRSWAP-ADR-CONTRACT-001, PTO-TLB-IA-ADR-CONTRACT-001, PTO-TLB-IALL-ADR-CONTRACT-001, PTO-TLB-IAV-ADR-CONTRACT-001, PTO-TLB-IV-ADR-CONTRACT-001
    SHA-256
    5680b3516be6c28a1ccb198c99f5efb66317c65330f6d87434173024d2795a7d
    Open exact decision source ↗ for ADR-0031

Unit metadata

Open 4 generated metadata fields
id
PTO-ARCH-SYSTEM-REGISTERS-TIMER
surface
arch
classification
[
  "system-registers",
  "timer"
]
depends_on
[
  "PTO-ARCH-SYSTEM-REGISTERS-CONTEXT"
]
Open generated traceability record
{
  "classification": [
    "system-registers",
    "timer"
  ],
  "documentation": "docs/arch/system-registers/timer.md",
  "id": "PTO-ARCH-SYSTEM-REGISTERS-TIMER",
  "mnemonic": null,
  "readiness_subjects": [
    "ADR-0003",
    "ADR-0010",
    "ADR-0016",
    "ADR-0017",
    "ADR-0031"
  ],
  "semantic_tests": [
    "PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-THRESHOLD-001"
  ],
  "source": "asl/arch/system-registers/timer.asl",
  "surface": "arch",
  "tests": [
    "PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-STATIC-001",
    "PTO-AVS-ARCH-SYSTEM-REGISTERS-TIMER-THRESHOLD-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/system-registers/timer.asl
ASL SHA-256
7f2078b0d6ae745c8ec7369695d5a5ec1225356e2f8e5548c2a179330bf9970d
生成文档
docs/site/i18n/zh-CN/docusaurus-plugin-content-docs-reference/current/arch/system-registers/timer.md · 已融合到当前页面
文档 SHA-256
b08cc536cd672c253563429f0731c0f50394f131bcd360d6eacdead763a1843b

精确所有者