SGX Drivers

[vitor]

Hello! I want congratulate everyone for the great job done here!
Somebody have some news about Power SGX drivers to beagleboard? Where are we at this point?

Thanks!

[kmihelich]

We are build hard-float, not soft-float, which gives us a faster system but PowerVR and TI haven't come through with hard-float drivers yet for the SGX chips in the beagle or panda. Sometime hopefully.

[bmentink]

Hi There, I am interested in this as well. On the Angstrom distro you could install the SGX accelerated OpenGL ES
library which allowed you accelerated graphics ... how does that lib relate to the work you are doing, can you use that library?

[vitor]

Nice! I'm excited for this solution. Can I test already?
Thanks!

[WarheadsSE]

hardfloat = water
softfloat = oil..

They aren't going to mix.

[embeddedtim]

Where exactly is the hard-float vs. soft-float decision made??
Is it a kernel option or libc option?? GCC arg?

Thanks!

[kmihelich]

It is a compile time option, along with the targeted FPU. In our case, -mfloat-abi=hard -mfpu=vfpv3-d16

http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html

[embeddedtim]

Is it necessary to specify these args for every program? Are they defaulted to something? what if I didn't specify them?

[kmihelich]

If you used makepkg within our armv7h version, the flags were added via makepkg.conf.

If you went at it on your own, you could check for a config.log, or check through objdump verifying assembly is using the right calls, and/or checking the ELF headers.

[embeddedtim]

For future reference; it looks like 'gcc -v main.c' on my PandaBoard shows the FPU options being included.