Documentation/arch/powerpc/isa-versions.rst

Source file repositories/reference/linux-study-clean/Documentation/arch/powerpc/isa-versions.rst

File Facts

System: Linux kernel
Corpus path: Documentation/arch/powerpc/isa-versions.rst
Extension: .rst
Size: 2891 bytes
Lines: 102
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
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

==========================
CPU to ISA Version Mapping
==========================

Mapping of some CPU versions to relevant ISA versions.

Note Power4 and Power4+ are not supported.

========= ====================================================================
CPU       Architecture version
========= ====================================================================
Power10   Power ISA v3.1
Power9    Power ISA v3.0B
Power8    Power ISA v2.07
e6500     Power ISA v2.06 with some exceptions
e5500     Power ISA v2.06 with some exceptions, no Altivec
Power7    Power ISA v2.06
Power6    Power ISA v2.05
PA6T      Power ISA v2.04
Cell PPU  - Power ISA v2.02 with some minor exceptions
          - Plus Altivec/VMX ~= 2.03
Power5++  Power ISA v2.04 (no VMX)
Power5+   Power ISA v2.03
Power5    - PowerPC User Instruction Set Architecture Book I v2.02
          - PowerPC Virtual Environment Architecture Book II v2.02
          - PowerPC Operating Environment Architecture Book III v2.02
PPC970    - PowerPC User Instruction Set Architecture Book I v2.01
          - PowerPC Virtual Environment Architecture Book II v2.01
          - PowerPC Operating Environment Architecture Book III v2.01
          - Plus Altivec/VMX ~= 2.03
Power4+   - PowerPC User Instruction Set Architecture Book I v2.01
          - PowerPC Virtual Environment Architecture Book II v2.01
          - PowerPC Operating Environment Architecture Book III v2.01
Power4    - PowerPC User Instruction Set Architecture Book I v2.00
          - PowerPC Virtual Environment Architecture Book II v2.00
          - PowerPC Operating Environment Architecture Book III v2.00
========= ====================================================================


Key Features
------------

========== ==================
CPU        VMX (aka. Altivec)
========== ==================
Power10    Yes
Power9     Yes
Power8     Yes
e6500      Yes
e5500      No
Power7     Yes
Power6     Yes
PA6T       Yes
Cell PPU   Yes
Power5++   No
Power5+    No
Power5     No
PPC970     Yes
Power4+    No
Power4     No
========== ==================

========== ====
CPU        VSX
========== ====
Power10    Yes
Power9     Yes
Power8     Yes
e6500      No
e5500      No

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
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.