Floating point in kernel?

[Johannes Lundberg]

Hi

The new AMD graphics drivers use floats in kernel space.
Upstream Linux code has something like:
kernel_fpu_begin();
...
kernel_fpu_end();

Do we have similar functions to save/restore FPU registers?

Cheers

[Konstantin Belousov]

Post by Johannes Lundberg
Hi
The new AMD graphics drivers use floats in kernel space.
kernel_fpu_begin();
...
kernel_fpu_end();
Do we have similar functions to save/restore FPU registers?

Read fpu_kern(9).

[Johannes Lundberg]

Post by Konstantin Belousov

Post by Johannes Lundberg
Hi
The new AMD graphics drivers use floats in kernel space.
kernel_fpu_begin();
...
kernel_fpu_end();
Do we have similar functions to save/restore FPU registers?

Read fpu_kern(9).

Thanks! Actually I found that just after hitting the send button :)