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 <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
14struct fpu {
15	u32 fpc;
16	__vector128 vxrs[__NUM_VXRS] __aligned(8);
17};
18
19struct kernel_fpu_hdr {
20	int	mask;
21	u32	fpc;
22};
23
24struct kernel_fpu {
25	struct kernel_fpu_hdr hdr;
26	__vector128 vxrs[] __aligned(8);
27};
28
29#define KERNEL_FPU_STRUCT(vxr_size)				\
30struct kernel_fpu_##vxr_size {					\
31	struct kernel_fpu_hdr hdr;				\
32	__vector128 vxrs[vxr_size] __aligned(8);		\
33}
34
35KERNEL_FPU_STRUCT(8);
36KERNEL_FPU_STRUCT(16);
37KERNEL_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 */