arch/s390/include/asm/fpu/types.h

   1 /*
   2  * FPU data structures
   3  *
   4  * Copyright IBM Corp. 2015
   5  * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
   6  */
   7
   8 #ifndef _ASM_S390_FPU_TYPES_H
   9 #define _ASM_S390_FPU_TYPES_H
  10
  11 #include <asm/sigcontext.h>
  12
  13 struct fpu {
  14         __u32 fpc;              /* Floating-point control */
  15         void *regs;             /* Pointer to the current save area */
  16         union {
  17                 /* Floating-point register save area */
  18                 freg_t fprs[__NUM_FPRS];
  19                 /* Vector register save area */
  20                 __vector128 vxrs[__NUM_VXRS];
  21         };
  22 };
  23
  24 /* VX array structure for address operand constraints in inline assemblies */
  25 struct vx_array { __vector128 _[__NUM_VXRS]; };
  26
  27 /* In-kernel FPU state structure */
  28 struct kernel_fpu {
  29         u32         mask;
  30         u32         fpc;
  31         union {
  32                 freg_t fprs[__NUM_FPRS];
  33                 __vector128 vxrs[__NUM_VXRS];
  34         };
  35 };
  36
  37 #endif /* _ASM_S390_FPU_TYPES_H */