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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * FPU data structures
   4  *
   5  * Copyright IBM Corp. 2015
   6  * Author(s): Hendrik Brueckner <[email protected]>
   7  */
   8
   9 #ifndef _ASM_S390_FPU_TYPES_H
  10 #define _ASM_S390_FPU_TYPES_H
  11
  12 #include <asm/sigcontext.h>
  13
  14 struct fpu {
  15         u32 fpc;
  16         __vector128 vxrs[__NUM_VXRS] __aligned(8);
  17 };
  18
  19 struct kernel_fpu_hdr {
  20         int     mask;
  21         u32     fpc;
  22 };
  23
  24 struct kernel_fpu {
  25         struct kernel_fpu_hdr hdr;
  26         __vector128 vxrs[] __aligned(8);
  27 };
  28
  29 #define KERNEL_FPU_STRUCT(vxr_size)                             \
  30 struct kernel_fpu_##vxr_size {                                  \
  31         struct kernel_fpu_hdr hdr;                              \
  32         __vector128 vxrs[vxr_size] __aligned(8);                \
  33 }
  34
  35 KERNEL_FPU_STRUCT(8);
  36 KERNEL_FPU_STRUCT(16);
  37 KERNEL_FPU_STRUCT(32);
  38
  39 #define DECLARE_KERNEL_FPU_ONSTACK(vxr_size, name)              \
  40         struct kernel_fpu_##vxr_size name __uninitialized
  41
  42 #define DECLARE_KERNEL_FPU_ONSTACK8(name)                       \
  43         DECLARE_KERNEL_FPU_ONSTACK(8, name)
  44
  45 #define DECLARE_KERNEL_FPU_ONSTACK16(name)                      \
  46         DECLARE_KERNEL_FPU_ONSTACK(16, name)
  47
  48 #define DECLARE_KERNEL_FPU_ONSTACK32(name)                      \
  49         DECLARE_KERNEL_FPU_ONSTACK(32, name)
  50
  51 #endif /* _ASM_S390_FPU_TYPES_H */