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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_IA64_FPU_H
#define _ASM_IA64_FPU_H
/*
* Copyright (C) 1998, 1999, 2002, 2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/types.h>
/* floating point status register: */
#define FPSR_TRAP_VD (1 << 0) /* invalid op trap disabled */
#define FPSR_TRAP_DD (1 << 1) /* denormal trap disabled */
#define FPSR_TRAP_ZD (1 << 2) /* zero-divide trap disabled */
#define FPSR_TRAP_OD (1 << 3) /* overflow trap disabled */
#define FPSR_TRAP_UD (1 << 4) /* underflow trap disabled */
#define FPSR_TRAP_ID (1 << 5) /* inexact trap disabled */
#define FPSR_S0(x) ((x) << 6)
#define FPSR_S1(x) ((x) << 19)
#define FPSR_S2(x) (__IA64_UL(x) << 32)
#define FPSR_S3(x) (__IA64_UL(x) << 45)
/* floating-point status field controls: */
#define FPSF_FTZ (1 << 0) /* flush-to-zero */
#define FPSF_WRE (1 << 1) /* widest-range exponent */
#define FPSF_PC(x) (((x) & 0x3) << 2) /* precision control */
#define FPSF_RC(x) (((x) & 0x3) << 4) /* rounding control */
#define FPSF_TD (1 << 6) /* trap disabled */
/* floating-point status field flags: */
#define FPSF_V (1 << 7) /* invalid operation flag */
#define FPSF_D (1 << 8) /* denormal/unnormal operand flag */
#define FPSF_Z (1 << 9) /* zero divide (IEEE) flag */
#define FPSF_O (1 << 10) /* overflow (IEEE) flag */
#define FPSF_U (1 << 11) /* underflow (IEEE) flag */
#define FPSF_I (1 << 12) /* inexact (IEEE) flag) */
/* floating-point rounding control: */
#define FPRC_NEAREST 0x0
#define FPRC_NEGINF 0x1
#define FPRC_POSINF 0x2
#define FPRC_TRUNC 0x3
#define FPSF_DEFAULT (FPSF_PC (0x3) | FPSF_RC (FPRC_NEAREST))
/* This default value is the same as HP-UX uses. Don't change it
without a very good reason. */
#define FPSR_DEFAULT (FPSR_TRAP_VD | FPSR_TRAP_DD | FPSR_TRAP_ZD \
| FPSR_TRAP_OD | FPSR_TRAP_UD | FPSR_TRAP_ID \
| FPSR_S0 (FPSF_DEFAULT) \
| FPSR_S1 (FPSF_DEFAULT | FPSF_TD | FPSF_WRE) \
| FPSR_S2 (FPSF_DEFAULT | FPSF_TD) \
| FPSR_S3 (FPSF_DEFAULT | FPSF_TD))
# ifndef __ASSEMBLY__
struct ia64_fpreg {
union {
unsigned long bits[2];
long double __dummy; /* force 16-byte alignment */
} u;
};
# endif /* __ASSEMBLY__ */
#endif /* _ASM_IA64_FPU_H */