mainline inclusion
from mainline-v5.16-rc1
commit 63d6bdf3
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I590ZC
CVE: NA

Intel-SIG: commit 63d6bdf3 x86/math-emu: Convert to fpstate.

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

Convert math emulation code to the new register storage
mechanism in preparation for dynamically sized buffers.

No functional change.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211013145322.711347464@linutronix.deSigned-off-by: NLin Wang <lin.x.wang@intel.com>
Signed-off-by: NAichun Shi <aichun.shi@intel.com>