CONFIG_ALTIVEC=y

CONFIG_ALTIVEC=y

[Nicholas Coult]

When a kernel is compiled with CONFIG_ALTIVEC=y, I assume this
means that the kernel is aware of the Altivec registers, and keeps
track of their contents during context switches?  And that code
which uses Altivec instructions/registers will run properly with such
a kernel?  Thanks,

Dr. Nicholas Coult, Research Associate
Institute for Mathematics and Its Applications, University of Minnesota
Home Page: www.ima.umn.edu/~coult              Office: 555 Vincent Hall
Email: coult@ima.umn.edu      Phone: (612) 624-2527 Fax: (612) 624-4163


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Re: CONFIG_ALTIVEC=y

[Holger Bettag]

Nicholas Coult <coult@ima.umn.edu> writes:

>
> When a kernel is compiled with CONFIG_ALTIVEC=y, I assume this
> means that the kernel is aware of the Altivec registers, and keeps
> track of their contents during context switches?  And that code
> which uses Altivec instructions/registers will run properly with such
> a kernel?
>
Yes.

  Holger

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Re: CONFIG_ALTIVEC=y

[Giuliano Pochini]

> Nicholas Coult <coult@ima.umn.edu> writes:
>
>>
>> When a kernel is compiled with CONFIG_ALTIVEC=y, I assume this
>> means that the kernel is aware of the Altivec registers, and keeps
>> track of their contents during context switches?  And that code
>> which uses Altivec instructions/registers will run properly with such
>> a kernel?
>>
> Yes.
>
>   Holger

Does it take care of VRSAVE or it saves all VRs every context switch ?

Bye.


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