1
Download Coherent Accelerator Processor Interface User`s Manual
Transcript
User’s Manual Advance Coherent Accelerator Processor Interface Contents List of Tables ................................................................................................................... 7 List of Figures ................................................................................................................. 9 Revision Log ................................................................................................................. 11 About this Document .................................................................................................... 13 Who Should Read This Manual ............................................................................................................ Document Organization ........................................................................................................................ Related Publications ............................................................................................................................. Conventions Used in This Document .................................................................................................... Representation of Numbers ............................................................................................................ Bit Significance ............................................................................................................................... Other Conventions .......................................................................................................................... References to Registers, Fields, and Bits ............................................................................................. Endian Order ......................................................................................................................................... 13 13 14 14 14 14 14 15 16 1. Coherent Accelerator Processor Interface Overview ............................................ 17 1.1 Coherency ....................................................................................................................................... 17 1.2 POWER Service Layer .................................................................................................................... 18 1.3 Application ....................................................................................................................................... 19 2. Introduction to Coherent Accelerator Interface Architecture ............................... 21 2.1 Organization of a CAIA-Compliant Accelerator ............................................................................... 2.1.1 POWER Service Layer .......................................................................................................... 2.1.2 Accelerator Function Unit ...................................................................................................... 2.2 Main Storage Addressing ................................................................................................................ 2.2.1 Main Storage Attributes ......................................................................................................... 21 22 23 23 23 3. Programming Models ............................................................................................... 25 3.1 Dedicated-Process Programming Model ........................................................................................ 3.1.1 Starting and Stopping an AFU in the Dedicated-Process Model ........................................... 3.2 Shared Programming Models ......................................................................................................... 3.2.1 Starting and Stopping an AFU in the Shared Models ............................................................ 3.3 Scheduled Processes Area ............................................................................................................. 3.3.1 Process Element Entry .......................................................................................................... 3.3.2 Software State Field Format .................................................................................................. 3.3.3 Software Command/Status Field Format .............................................................................. 3.4 Process Management ..................................................................................................................... 3.4.1 Adding a Process Element to the Linked List by System Software ....................................... 3.4.2 PSL Queue Processing (Starting and Resuming Process Elements) ................................... 3.4.3 Terminating a Process Element ............................................................................................ 3.4.4 Removing a Process Element from the Linked List ............................................................... 3.4.5 Suspending a Process Element in the Linked List ................................................................ Version 1.2 29 January 2015 26 26 29 31 33 35 36 37 38 39 42 43 48 50 Contents Page 3 of 101
