Hi
I had a problem.
I can use vfp in user mode but not work in priviledge level.
Is there any wrong setting in CP10 , CP11 or any other wrong setting??
BR
If the kernel didn't support kernel_neon_begin(), what can I do??
There's probably some facility for this in whatever operating system you're using so it'll depend on that. Which one is it? If desperate one could enable the floating point save all the registers, or at least the ones which aren't callee preserved, plus the control and status registers, call your routine to do the work and then restore the registers and disable the floating point again but a routine to do this would save on some of the work when it doesn't need to be done.