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 */
39