Re: [patch v2 00/35] Hexagon: Add support for Qualcomm Hexagon architecture

Linas Vepstas (Code Aurora)
2011-08-30T20:48:45Z

On Tue, Aug 30, 2011 at 11:18:24PM +0300, Pekka Enberg wrote:
> On Tue, Aug 30, 2011 at 10:07 PM, Richard Kuo <rkuo@codeaurora.org> wrote:
> > Thanks to everyone for their comments/feedback!  If I missed anything
> > or there's something else that needs cleanup, please let me know.
>
> Are there any publicly available references for the architecture?
> Googling for "Qualcomm Hexagon" doesn't seem to find anything
> interesting.

The main developer page is at
https://developer.qualcomm.com/hexagon-processor

The specs listed there include:

|> Hexagon V2 Programmer’s Reference Manual (80-NB419-1)
|> https://developer.qualcomm.com/file/5117/80-nb419-1ahexagonv2programmersref.pdf
|> Describes the Hexagon V2 processor architecture and instruction set.
|>
|> Hexagon Application Binary Interface Specification (80-NB419-2)
|> https://developer.qualcomm.com/file/5119/80-nb419-2ahexagonabispec.pdf
|> Describes the application binary interface (ABI) for the Hexagon V2, V3, and V4 processor versions. Topics covered include the hardware representation of C data types, software stack configuration, parameter passing, register usage across function calls, and C++ exception handling.
|>
|> Hexagon Virtual Machine Specification (80-NB419-3)
|> https://developer.qualcomm.com/file/5118/80-nb419-3ahexagonvirtualmachinespec.pdf
|> Describes the Hexagon Virtual Machine (HVM), a software abstraction layer which enables multiple operating systems and other clients to execute concurrently on a single Hexagon processor, through the virtualization and partitioning of physical hardware resources.

Access to these seems to require registration ...

--linas

--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.