omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Ankur Tyagi]

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Hi,

I am using TI AM335x-EVM kit and while building image using
"arago-daisy-config.txt", I saw this warning :

omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now

and TUNE_FEATUREis "vfp"

Does that mean GPU is not getting used anymore ?
I am using QT5 with eglfs platform and need GPU support for performance.

Please clarify the situation.

Thanks
Ankur

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Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Khem Raj]

On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com> wrote:
> Hi,
>
> I am using TI AM335x-EVM kit and while building image using
> "arago-daisy-config.txt", I saw this warning :
>
> omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
> omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
>
> and TUNE_FEATUREis "vfp"
>
> Does that mean GPU is not getting used anymore ?

not really, what its telling is that you dont have
callconvention-hard in TUNE_FEATURES
which means that compiler wont use hardfloat ABI when making function calls.
but neon/vfp will still be used e.g. when doing vectorization etc. if
using hardfp ABI will radically improve performance totally depends
upon kind of workload that you are measuring. It may vary.

> I am using QT5 with eglfs platform and need GPU support for performance.
>
> Please clarify the situation.
>
> Thanks
> Ankur
>
> --
> _______________________________________________
> meta-ti mailing list
> meta-ti@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-ti
>

Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Ankur Tyagi]

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Thanks for your response.

So it is worth trying with TUNE_FEATURE "hfp" and measure the performance.
Do I have to set TARGET_FPU as "hfp-neon" as default value is "vfp-neon"

Does it make sense to push this change upstream as well ?

"Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
fruit salad"

On Thu, Aug 6, 2015 at 3:00 PM, Khem Raj <raj.khem@gmail.com> wrote:

> On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
> wrote:
> > Hi,
> >
> > I am using TI AM335x-EVM kit and while building image using
> > "arago-daisy-config.txt", I saw this warning :
> >
> > omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
> > omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
> >
> > and TUNE_FEATUREis "vfp"
> >
> > Does that mean GPU is not getting used anymore ?
>
> not really, what its telling is that you dont have
> callconvention-hard in TUNE_FEATURES
> which means that compiler wont use hardfloat ABI when making function
> calls.
> but neon/vfp will still be used e.g. when doing vectorization etc. if
> using hardfp ABI will radically improve performance totally depends
> upon kind of workload that you are measuring. It may vary.
>
> > I am using QT5 with eglfs platform and need GPU support for performance.
> >
> > Please clarify the situation.
> >
> > Thanks
> > Ankur
> >
> > --
> > _______________________________________________
> > meta-ti mailing list
> > meta-ti@yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/meta-ti
> >
>

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Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Khem Raj]

On Wed, Aug 5, 2015 at 8:41 PM, Ankur Tyagi <ankur.tyagi85@gmail.com> wrote:
> Thanks for your response.
>
> So it is worth trying with TUNE_FEATURE "hfp" and measure the performance.
> Do I have to set TARGET_FPU as "hfp-neon" as default value is "vfp-neon"
>

all you might need is to select a proper DEFAULTTUNE in machine config
something like

DEFAULTTUNE ?= "cortexa8thf-neon"

> Does it make sense to push this change upstream as well ?
>
> "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a fruit
> salad"
>
> On Thu, Aug 6, 2015 at 3:00 PM, Khem Raj <raj.khem@gmail.com> wrote:
>>
>> On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
>> wrote:
>> > Hi,
>> >
>> > I am using TI AM335x-EVM kit and while building image using
>> > "arago-daisy-config.txt", I saw this warning :
>> >
>> > omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
>> > omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
>> >
>> > and TUNE_FEATUREis "vfp"
>> >
>> > Does that mean GPU is not getting used anymore ?
>>
>> not really, what its telling is that you dont have
>> callconvention-hard in TUNE_FEATURES
>> which means that compiler wont use hardfloat ABI when making function
>> calls.
>> but neon/vfp will still be used e.g. when doing vectorization etc. if
>> using hardfp ABI will radically improve performance totally depends
>> upon kind of workload that you are measuring. It may vary.
>>
>> > I am using QT5 with eglfs platform and need GPU support for performance.
>> >
>> > Please clarify the situation.
>> >
>> > Thanks
>> > Ankur
>> >
>> > --
>> > _______________________________________________
>> > meta-ti mailing list
>> > meta-ti@yoctoproject.org
>> > https://lists.yoctoproject.org/listinfo/meta-ti
>> >
>
>

Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Ankur Tyagi]

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thanks for help.

Will try with above suggestion

"Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
fruit salad"

On Thu, Aug 6, 2015 at 3:46 PM, Khem Raj <raj.khem@gmail.com> wrote:

> On Wed, Aug 5, 2015 at 8:41 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
> wrote:
> > Thanks for your response.
> >
> > So it is worth trying with TUNE_FEATURE "hfp" and measure the
> performance.
> > Do I have to set TARGET_FPU as "hfp-neon" as default value is "vfp-neon"
> >
>
> all you might need is to select a proper DEFAULTTUNE in machine config
> something like
>
> DEFAULTTUNE ?= "cortexa8thf-neon"
>
> > Does it make sense to push this change upstream as well ?
> >
> > "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
> fruit
> > salad"
> >
> > On Thu, Aug 6, 2015 at 3:00 PM, Khem Raj <raj.khem@gmail.com> wrote:
> >>
> >> On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
> >> wrote:
> >> > Hi,
> >> >
> >> > I am using TI AM335x-EVM kit and while building image using
> >> > "arago-daisy-config.txt", I saw this warning :
> >> >
> >> > omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
> >> > omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
> >> >
> >> > and TUNE_FEATUREis "vfp"
> >> >
> >> > Does that mean GPU is not getting used anymore ?
> >>
> >> not really, what its telling is that you dont have
> >> callconvention-hard in TUNE_FEATURES
> >> which means that compiler wont use hardfloat ABI when making function
> >> calls.
> >> but neon/vfp will still be used e.g. when doing vectorization etc. if
> >> using hardfp ABI will radically improve performance totally depends
> >> upon kind of workload that you are measuring. It may vary.
> >>
> >> > I am using QT5 with eglfs platform and need GPU support for
> performance.
> >> >
> >> > Please clarify the situation.
> >> >
> >> > Thanks
> >> > Ankur
> >> >
> >> > --
> >> > _______________________________________________
> >> > meta-ti mailing list
> >> > meta-ti@yoctoproject.org
> >> > https://lists.yoctoproject.org/listinfo/meta-ti
> >> >
> >
> >
>

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Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Ankur Tyagi]

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I just checked that inside "ti33x.inc",
DEFAULTTUNE ?= "cortexa8thf-neon"

But it is overwritten by inclusion of arch-armv7a.inc
DEFAULTTUNE ?= "armv7a"
TUNE_FEATURES_tune-armv7a ?= "armv7a vfp"

But TUNER_FEATURES also include "callconvention-hard".

I am bit confused here.


"Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
fruit salad"

On Thu, Aug 6, 2015 at 3:49 PM, Ankur Tyagi <ankur.tyagi85@gmail.com> wrote:

> thanks for help.
>
> Will try with above suggestion
>
> "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
> fruit salad"
>
> On Thu, Aug 6, 2015 at 3:46 PM, Khem Raj <raj.khem@gmail.com> wrote:
>
>> On Wed, Aug 5, 2015 at 8:41 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
>> wrote:
>> > Thanks for your response.
>> >
>> > So it is worth trying with TUNE_FEATURE "hfp" and measure the
>> performance.
>> > Do I have to set TARGET_FPU as "hfp-neon" as default value is "vfp-neon"
>> >
>>
>> all you might need is to select a proper DEFAULTTUNE in machine config
>> something like
>>
>> DEFAULTTUNE ?= "cortexa8thf-neon"
>>
>> > Does it make sense to push this change upstream as well ?
>> >
>> > "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
>> fruit
>> > salad"
>> >
>> > On Thu, Aug 6, 2015 at 3:00 PM, Khem Raj <raj.khem@gmail.com> wrote:
>> >>
>> >> On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
>> >> wrote:
>> >> > Hi,
>> >> >
>> >> > I am using TI AM335x-EVM kit and while building image using
>> >> > "arago-daisy-config.txt", I saw this warning :
>> >> >
>> >> > omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
>> >> > omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
>> >> >
>> >> > and TUNE_FEATUREis "vfp"
>> >> >
>> >> > Does that mean GPU is not getting used anymore ?
>> >>
>> >> not really, what its telling is that you dont have
>> >> callconvention-hard in TUNE_FEATURES
>> >> which means that compiler wont use hardfloat ABI when making function
>> >> calls.
>> >> but neon/vfp will still be used e.g. when doing vectorization etc. if
>> >> using hardfp ABI will radically improve performance totally depends
>> >> upon kind of workload that you are measuring. It may vary.
>> >>
>> >> > I am using QT5 with eglfs platform and need GPU support for
>> performance.
>> >> >
>> >> > Please clarify the situation.
>> >> >
>> >> > Thanks
>> >> > Ankur
>> >> >
>> >> > --
>> >> > _______________________________________________
>> >> > meta-ti mailing list
>> >> > meta-ti@yoctoproject.org
>> >> > https://lists.yoctoproject.org/listinfo/meta-ti
>> >> >
>> >
>> >
>>
>
>

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Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Denys Dmytriyenko]

On Thu, Aug 06, 2015 at 04:20:40PM +1200, Ankur Tyagi wrote:
> I just checked that inside "ti33x.inc",
> DEFAULTTUNE ?= "cortexa8thf-neon"
> 
> But it is overwritten by inclusion of arch-armv7a.inc
> DEFAULTTUNE ?= "armv7a"
> TUNE_FEATURES_tune-armv7a ?= "armv7a vfp"
> 
> But TUNER_FEATURES also include "callconvention-hard".
> 
> I am bit confused here.

It's not overwritten:
http://www.yoctoproject.org/docs/1.6/bitbake-user-manual/bitbake-user-manual.html#setting-a-default-value


> "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
> fruit salad"
> 
> On Thu, Aug 6, 2015 at 3:49 PM, Ankur Tyagi <ankur.tyagi85@gmail.com> wrote:
> 
> > thanks for help.
> >
> > Will try with above suggestion
> >
> > "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
> > fruit salad"
> >
> > On Thu, Aug 6, 2015 at 3:46 PM, Khem Raj <raj.khem@gmail.com> wrote:
> >
> >> On Wed, Aug 5, 2015 at 8:41 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
> >> wrote:
> >> > Thanks for your response.
> >> >
> >> > So it is worth trying with TUNE_FEATURE "hfp" and measure the
> >> performance.
> >> > Do I have to set TARGET_FPU as "hfp-neon" as default value is "vfp-neon"
> >> >
> >>
> >> all you might need is to select a proper DEFAULTTUNE in machine config
> >> something like
> >>
> >> DEFAULTTUNE ?= "cortexa8thf-neon"
> >>
> >> > Does it make sense to push this change upstream as well ?
> >> >
> >> > "Knowledge is knowing tomato is a fruit, wisdom is not putting it in a
> >> fruit
> >> > salad"
> >> >
> >> > On Thu, Aug 6, 2015 at 3:00 PM, Khem Raj <raj.khem@gmail.com> wrote:
> >> >>
> >> >> On Wed, Aug 5, 2015 at 7:47 PM, Ankur Tyagi <ankur.tyagi85@gmail.com>
> >> >> wrote:
> >> >> > Hi,
> >> >> >
> >> >> > I am using TI AM335x-EVM kit and while building image using
> >> >> > "arago-daisy-config.txt", I saw this warning :
> >> >> >
> >> >> > omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
> >> >> > omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
> >> >> >
> >> >> > and TUNE_FEATUREis "vfp"
> >> >> >
> >> >> > Does that mean GPU is not getting used anymore ?
> >> >>
> >> >> not really, what its telling is that you dont have
> >> >> callconvention-hard in TUNE_FEATURES
> >> >> which means that compiler wont use hardfloat ABI when making function
> >> >> calls.
> >> >> but neon/vfp will still be used e.g. when doing vectorization etc. if
> >> >> using hardfp ABI will radically improve performance totally depends
> >> >> upon kind of workload that you are measuring. It may vary.
> >> >>
> >> >> > I am using QT5 with eglfs platform and need GPU support for
> >> performance.
> >> >> >
> >> >> > Please clarify the situation.
> >> >> >
> >> >> > Thanks
> >> >> > Ankur
> >> >> >
> >> >> > --
> >> >> > _______________________________________________
> >> >> > meta-ti mailing list
> >> >> > meta-ti@yoctoproject.org
> >> >> > https://lists.yoctoproject.org/listinfo/meta-ti
> >> >> >
> >> >
> >> >
> >>
> >
> >

> -- 
> _______________________________________________
> meta-ti mailing list
> meta-ti@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-ti

Re: omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Denys Dmytriyenko]

SGX is a closed IP from Imagination Tech and is available mostly as a binary 
blob. Latest versions of it only come in hardfp format, hence the check - if 
you are not building the rest of your system in hardfp, it skips SGX.

-- 
Denys


On Thu, Aug 06, 2015 at 02:47:04PM +1200, Ankur Tyagi wrote:
> Hi,
> 
> I am using TI AM335x-EVM kit and while building image using
> "arago-daisy-config.txt", I saw this warning :
> 
> omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
> omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now
> 
> and TUNE_FEATUREis "vfp"
> 
> Does that mean GPU is not getting used anymore ?
> I am using QT5 with eglfs platform and need GPU support for performance.
> 
> Please clarify the situation.
> 
> Thanks
> Ankur

> -- 
> _______________________________________________
> meta-ti mailing list
> meta-ti@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-ti

omap3-sgx-modules-5.01.01.xx ONLY supports hardfp mode for now

[Ankur Tyagi]

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​
Hi,

I am using TI AM335x-EVM kit and while building image using
"arago-daisy-config.txt", I saw this warning :

omap3-sgx-modules-5.01.01.02 ONLY supports hardfp mode for now
omap3-sgx-modules-5.01.01.01 ONLY supports hardfp mode for now

and TUNE_FEATURE
​ ​
is "vfp"

Does that mean GPU is not getting used anymore ?
I am using QT5 with eglfs platform and need GPU support for performance.

Please clarify the situation.

Thanks
Ankur

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