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;
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 */
52
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