From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
arch/sh/include/asm/fpu.h | 71 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
create mode 100644 arch/sh/include/asm/fpu.h
(limited to 'arch/sh/include/asm/fpu.h')
diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
new file mode 100644
index 00000000..06c4281a
--- /dev/null
+++ b/arch/sh/include/asm/fpu.h
@@ -0,0 +1,71 @@
+#ifndef __ASM_SH_FPU_H
+#define __ASM_SH_FPU_H
+
+#ifndef __ASSEMBLY__
+
+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->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 */
--
cgit