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kernel add
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/*
* In-kernel FPU support functions
*
* Copyright IBM Corp. 2015
* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
*/
#ifndef _ASM_S390_FPU_API_H
#define _ASM_S390_FPU_API_H
void save_fpu_regs(void);
static inline int test_fp_ctl(u32 fpc)
{
u32 orig_fpc;
int rc;
asm volatile(
" efpc %1
"
" sfpc %2
"
"0: sfpc %1
"
" la %0,0
"
"1:
"
EX_TABLE(0b,1b)
: "=d" (rc), "=&d" (orig_fpc)
: "d" (fpc), "0" (-EINVAL));
return rc;
}
#endif /* _ASM_S390_FPU_API_H */
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