What's the different between gpu-viv-bin-mx6q-hfp and gpu-viv-bin-mx6q-sfp‏

cancel
Showing results for 
Search instead for 
Did you mean: 

What's the different between gpu-viv-bin-mx6q-hfp and gpu-viv-bin-mx6q-sfp‏

1,337 Views
raybloodworth
Contributor II

Hi,

   There are "hfp" and "sfp" libs in gpu-viv-bin-mx6q-3.10.17-1.0.0.

   Could anyone tell me what's the different between hfp andg sfp?

   For board mcimx6q-sdb,which libs should I use?

   I build "core-image-weston" with yocto imx-3.10.31-1.1.0_beta.It was hf by default.

   Could anyone tell me how to build the sf version?

Labels (4)
3 Replies

101 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi lingxin

sfp - software floating point, hfp - hardware floating point.

I.MX6 cortex a9 has hardware floating point support (neon)

so software image may be generated with or without hardware floating point support.

Please look below for details

https://community.freescale.com/thread/312094

Cortex-A9 HardFP Support | Zedboard

Regarding building details I believe most accurate answer you

can receive on meta-fsl-arm mailing list

https://lists.yoctoproject.org/listinfo/meta-freescale

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

0 Kudos

101 Views
raybloodworth
Contributor II

Thanks for your reply!

I got this from mailing list.

Restart a clean build and add the followed line into your local.conf:

DEFAULTTUNE_mx6 = "cortexa9-neon"

BTW, if I use the gpu-viv-bin-mx6q-hfp, should I use "arm-linux-gnueabihf-gcc" to compile program ?

101 Views
wallyyeh
Contributor V

this post really saved my day.

0 Kudos