Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Paul Mundt |
253 |
73.98% |
6 |
54.55% |
| Stuart Menefy |
67 |
19.59% |
1 |
9.09% |
| Giuseppe Cavallaro |
16 |
4.68% |
1 |
9.09% |
| Ingo Molnar |
3 |
0.88% |
1 |
9.09% |
| Vineet Gupta |
2 |
0.58% |
1 |
9.09% |
| Greg Kroah-Hartman |
1 |
0.29% |
1 |
9.09% |
| Total |
342 |
|
11 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_FPU_H
#define __ASM_SH_FPU_H
#ifndef __ASSEMBLY__
#include <asm/ptrace.h>
struct task_struct;
#ifdef CONFIG_SH_FPU
static inline void release_fpu(struct pt_regs *regs)
{
regs->sr |= SR_FD;
}
static inline void grab_fpu(struct pt_regs *regs)
{
regs->sr &= ~SR_FD;
}
extern void save_fpu(struct task_struct *__tsk);
extern void restore_fpu(struct task_struct *__tsk);
extern void fpu_state_restore(struct pt_regs *regs);
extern void __fpu_state_restore(void);
#else
#define save_fpu(tsk) do { } while (0)
#define restore_fpu(tsk) do { } while (0)
#define release_fpu(regs) do { } while (0)
#define grab_fpu(regs) do { } while (0)
#define fpu_state_restore(regs) do { } while (0)
#define __fpu_state_restore(regs) do { } while (0)
#endif
struct user_regset;
extern int do_fpu_inst(unsigned short, struct pt_regs *);
extern int init_fpu(struct task_struct *);
extern int fpregs_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf);
static inline void __unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
{
if (task_thread_info(tsk)->status & TS_USEDFPU) {
task_thread_info(tsk)->status &= ~TS_USEDFPU;
save_fpu(tsk);
release_fpu(regs);
} else
tsk->thread.fpu_counter = 0;
}
static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
{
preempt_disable();
__unlazy_fpu(tsk, regs);
preempt_enable();
}
static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs)
{
preempt_disable();
if (task_thread_info(tsk)->status & TS_USEDFPU) {
task_thread_info(tsk)->status &= ~TS_USEDFPU;
release_fpu(regs);
}
preempt_enable();
}
#endif /* __ASSEMBLY__ */
#endif /* __ASM_SH_FPU_H */