xref: /openbmc/linux/arch/sh/include/cpu-sh4/cpu/fpu.h (revision 6a0abce4)
1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * linux/arch/sh/kernel/cpu/sh4/sh4_fpu.h
4  *
5  * Copyright (C) 2006 STMicroelectronics Limited
6  * Author: Carl Shaw <carl.shaw@st.com>
7  *
8  * Definitions for SH4 FPU operations
9  */
10 
11 #ifndef __CPU_SH4_FPU_H
12 #define __CPU_SH4_FPU_H
13 
14 #define FPSCR_ENABLE_MASK	0x00000f80UL
15 
16 #define FPSCR_FMOV_DOUBLE	(1<<1)
17 
18 #define FPSCR_CAUSE_INEXACT	(1<<12)
19 #define FPSCR_CAUSE_UNDERFLOW	(1<<13)
20 #define FPSCR_CAUSE_OVERFLOW	(1<<14)
21 #define FPSCR_CAUSE_DIVZERO	(1<<15)
22 #define FPSCR_CAUSE_INVALID	(1<<16)
23 #define FPSCR_CAUSE_ERROR 	(1<<17)
24 
25 #define FPSCR_DBL_PRECISION	(1<<19)
26 #define FPSCR_ROUNDING_MODE(x)	((x >> 20) & 3)
27 #define FPSCR_RM_NEAREST	(0)
28 #define FPSCR_RM_ZERO		(1)
29 
30 #endif
31