mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
6607aa6f6b
: error: C++ style comments are not allowed in ISO C90 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. ^ error: (this will be reported only once per input file) Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#ifndef __ASM_CSKY_FPU_H
|
|
#define __ASM_CSKY_FPU_H
|
|
|
|
#include <asm/sigcontext.h>
|
|
#include <asm/ptrace.h>
|
|
|
|
int fpu_libc_helper(struct pt_regs *regs);
|
|
void fpu_fpe(struct pt_regs *regs);
|
|
|
|
static inline void init_fpu(void) { mtcr("cr<1, 2>", 0); }
|
|
|
|
void save_to_user_fp(struct user_fp *user_fp);
|
|
void restore_from_user_fp(struct user_fp *user_fp);
|
|
|
|
/*
|
|
* Define the fesr bit for fpe handle.
|
|
*/
|
|
#define FPE_ILLE (1 << 16) /* Illegal instruction */
|
|
#define FPE_FEC (1 << 7) /* Input float-point arithmetic exception */
|
|
#define FPE_IDC (1 << 5) /* Input denormalized exception */
|
|
#define FPE_IXC (1 << 4) /* Inexact exception */
|
|
#define FPE_UFC (1 << 3) /* Underflow exception */
|
|
#define FPE_OFC (1 << 2) /* Overflow exception */
|
|
#define FPE_DZC (1 << 1) /* Divide by zero exception */
|
|
#define FPE_IOC (1 << 0) /* Invalid operation exception */
|
|
#define FPE_REGULAR_EXCEPTION (FPE_IXC | FPE_UFC | FPE_OFC | FPE_DZC | FPE_IOC)
|
|
|
|
#ifdef CONFIG_OPEN_FPU_IDE
|
|
#define IDE_STAT (1 << 5)
|
|
#else
|
|
#define IDE_STAT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_OPEN_FPU_IXE
|
|
#define IXE_STAT (1 << 4)
|
|
#else
|
|
#define IXE_STAT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_OPEN_FPU_UFE
|
|
#define UFE_STAT (1 << 3)
|
|
#else
|
|
#define UFE_STAT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_OPEN_FPU_OFE
|
|
#define OFE_STAT (1 << 2)
|
|
#else
|
|
#define OFE_STAT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_OPEN_FPU_DZE
|
|
#define DZE_STAT (1 << 1)
|
|
#else
|
|
#define DZE_STAT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_OPEN_FPU_IOE
|
|
#define IOE_STAT (1 << 0)
|
|
#else
|
|
#define IOE_STAT 0
|
|
#endif
|
|
|
|
#endif /* __ASM_CSKY_FPU_H */
|