/* SPDX-License-Identifier: GPL-2.0 */
/*
 * FPU data structures
 *
 * Copyright IBM Corp. 2015
 * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
 */

#ifndef _ASM_S390_FPU_TYPES_H
#define _ASM_S390_FPU_TYPES_H

#include <asm/sigcontext.h>

struct fpu {
        u32 fpc;
        __vector128 vxrs[__NUM_VXRS] __aligned(8);
};

struct kernel_fpu_hdr {
        int     mask;
        u32     fpc;
};

struct kernel_fpu {
        struct kernel_fpu_hdr hdr;
        __vector128 vxrs[] __aligned(8);
};

#define KERNEL_FPU_STRUCT(vxr_size)                             \
struct kernel_fpu_##vxr_size {                                  \
        struct kernel_fpu_hdr hdr;                              \
        __vector128 vxrs[vxr_size] __aligned(8);                \
}

KERNEL_FPU_STRUCT(8);
KERNEL_FPU_STRUCT(16);
KERNEL_FPU_STRUCT(32);

#define DECLARE_KERNEL_FPU_ONSTACK(vxr_size, name)              \
        struct kernel_fpu_##vxr_size name __uninitialized

#define DECLARE_KERNEL_FPU_ONSTACK8(name)                       \
        DECLARE_KERNEL_FPU_ONSTACK(8, name)

#define DECLARE_KERNEL_FPU_ONSTACK16(name)                      \
        DECLARE_KERNEL_FPU_ONSTACK(16, name)

#define DECLARE_KERNEL_FPU_ONSTACK32(name)                      \
        DECLARE_KERNEL_FPU_ONSTACK(32, name)

#endif /* _ASM_S390_FPU_TYPES_H */