1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * FPU data structures
4 *
5 * Copyright IBM Corp. 2015
6 * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
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; /* Floating-point control */
16 void *regs; /* Pointer to the current save area */
17 union {
18 /* Floating-point register save area */
19 freg_t fprs[__NUM_FPRS];
20 /* Vector register save area */
21 __vector128 vxrs[__NUM_VXRS];
22 };
23 };
24
25 /* VX array structure for address operand constraints in inline assemblies */
26 struct vx_array { __vector128 _[__NUM_VXRS]; };
27
28 /* In-kernel FPU state structure */
29 struct kernel_fpu {
30 u32 mask;
31 u32 fpc;
32 union {
33 freg_t fprs[__NUM_FPRS];
34 __vector128 vxrs[__NUM_VXRS];
35 };
36 };
37
38 #endif /* _ASM_S390_FPU_TYPES_H */