summaryrefslogtreecommitdiffstats
path: root/arch/sh/include/asm/fpu.h
diff options
context:
space:
mode:
authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-10-23 15:24:10 +0200
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-10-23 15:24:10 +0200
commitd9214556b11a8d18ff588e60824c12041d30f791 (patch)
tree04ab59d13961675811a55c96fb12b2b167b72318 /arch/sh/include/asm/fpu.h
parent72a1419a9d4c859a3345e4b83f8ef7d599d3818c (diff)
parente82c6106b04b85879d802bbbeaed30d9b10a92e2 (diff)
Merge branches 'boards' and 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
Diffstat (limited to 'arch/sh/include/asm/fpu.h')
-rw-r--r--arch/sh/include/asm/fpu.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
index 91462fea150..1d3aee04b5c 100644
--- a/arch/sh/include/asm/fpu.h
+++ b/arch/sh/include/asm/fpu.h
@@ -30,8 +30,15 @@ static inline void save_fpu(struct task_struct *tsk, struct pt_regs *regs)
}
#endif
+struct user_regset;
+
extern int do_fpu_inst(unsigned short, struct pt_regs *);
+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)
{
preempt_disable();
@@ -50,6 +57,18 @@ static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs)
preempt_enable();
}
+static inline int init_fpu(struct task_struct *tsk)
+{
+ if (tsk_used_math(tsk)) {
+ if ((boot_cpu_data.flags & CPU_HAS_FPU) && tsk == current)
+ unlazy_fpu(tsk, task_pt_regs(tsk));
+ return 0;
+ }
+
+ set_stopped_child_used_math(tsk);
+ return 0;
+}
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_SH_FPU_H */