#ifndef _ASM_POWERPC_SWITCH_TO_H
#define _ASM_POWERPC_SWITCH_TO_H
+#include <asm/reg.h>
+
struct thread_struct;
struct task_struct;
struct pt_regs;
extern void load_up_spe(struct task_struct *);
extern void switch_booke_debug_regs(struct debug_reg *new_debug);
-static inline void disable_kernel_fp(void) { }
-static inline void disable_kernel_altivec(void) { }
-static inline void disable_kernel_spe(void) { }
-static inline void disable_kernel_vsx(void) { }
-
#ifdef CONFIG_PPC_FPU
extern void flush_fp_to_thread(struct task_struct *);
extern void giveup_fpu(struct task_struct *);
extern void __giveup_fpu(struct task_struct *);
+static inline void disable_kernel_fp(void)
+{
+ msr_check_and_clear(MSR_FP);
+}
+
#else
static inline void flush_fp_to_thread(struct task_struct *t) { }
static inline void giveup_fpu(struct task_struct *t) { }
extern void flush_altivec_to_thread(struct task_struct *);
extern void giveup_altivec(struct task_struct *);
extern void __giveup_altivec(struct task_struct *);
+static inline void disable_kernel_altivec(void)
+{
+ msr_check_and_clear(MSR_VEC);
+}
#else
static inline void flush_altivec_to_thread(struct task_struct *t) { }
static inline void giveup_altivec(struct task_struct *t) { }
#ifdef CONFIG_VSX
extern void flush_vsx_to_thread(struct task_struct *);
+static inline void disable_kernel_vsx(void)
+{
+ msr_check_and_clear(MSR_FP|MSR_VEC|MSR_VSX);
+}
#else
static inline void flush_vsx_to_thread(struct task_struct *t)
{
extern void flush_spe_to_thread(struct task_struct *);
extern void giveup_spe(struct task_struct *);
extern void __giveup_spe(struct task_struct *);
+static inline void disable_kernel_spe(void)
+{
+ msr_check_and_clear(MSR_SPE);
+}
#else
static inline void flush_spe_to_thread(struct task_struct *t) { }
static inline void giveup_spe(struct task_struct *t) { }