From: Ingo Molnar <mingo@elte.hu>
Date: Thu, 14 Aug 2008 12:58:22 +0000 (+0200)
Subject: Merge branches 'x86/prototypes', 'x86/x2apic' and 'x86/debug' into x86/core
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=c83d12806b6185131ece682de8696d8cfb78df69;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

Merge branches 'x86/prototypes', 'x86/x2apic' and 'x86/debug' into x86/core
---

c83d12806b6185131ece682de8696d8cfb78df69
diff --cc arch/x86/kernel/signal_64.c
index ca316b5b742c,02b02583f5b5,b45ef8ddd651,47c3d249e638..2f1464050059
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@@@@ -53,68 -54,59 -53,59 -53,6 +54,68 @@@@@ sys_sigaltstack(const stack_t __user *u
    	return do_sigaltstack(uss, uoss, regs->sp);
    }
    
   +/*
   + * Signal frame handlers.
   + */
   +
   +static inline int save_i387(struct _fpstate __user *buf)
   +{
   +	struct task_struct *tsk = current;
   +	int err = 0;
   +
   +	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
   +			sizeof(tsk->thread.xstate->fxsave));
   +
   +	if ((unsigned long)buf % 16)
   +		printk("save_i387: bad fpstate %p\n", buf);
   +
   +	if (!used_math())
   +		return 0;
   +	clear_used_math(); /* trigger finit */
   +	if (task_thread_info(tsk)->status & TS_USEDFPU) {
   +		err = save_i387_checking((struct i387_fxsave_struct __user *)
   +					 buf);
   +		if (err)
   +			return err;
   +		task_thread_info(tsk)->status &= ~TS_USEDFPU;
   +		stts();
   +	} else {
   +		if (__copy_to_user(buf, &tsk->thread.xstate->fxsave,
   +				   sizeof(struct i387_fxsave_struct)))
   +			return -1;
   +	}
   +	return 1;
   +}
   +
   +/*
   + * This restores directly out of user space. Exceptions are handled.
   + */
   +static inline int restore_i387(struct _fpstate __user *buf)
   +{
   +	struct task_struct *tsk = current;
   +	int err;
   +
   +	if (!used_math()) {
   +		err = init_fpu(tsk);
   +		if (err)
   +			return err;
   +	}
   +
   +	if (!(task_thread_info(current)->status & TS_USEDFPU)) {
   +		clts();
   +		task_thread_info(current)->status |= TS_USEDFPU;
   +	}
 -- 	return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
 +++	err = restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
 +++	if (unlikely(err)) {
 +++		/*
 +++		 * Encountered an error while doing the restore from the
 +++		 * user buffer, clear the fpu state.
 +++		 */
 +++		clear_fpu(tsk);
 +++		clear_used_math();
 +++	}
 +++	return err;
   +}
    
    /*
     * Do a signal return; undo the signal stack.
diff --cc include/asm-x86/apic.h
index bc2e364bdb10,519ad65708e7,502ca6594b1d,133c998161ca..1311c82b165b
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@@@@ -54,8 -54,13 -54,8 -54,8 +54,13 @@@@@ extern int disable_apic
    #endif
    
    extern int is_vsmp_box(void);
+ ++extern void xapic_wait_icr_idle(void);
+ ++extern u32 safe_xapic_wait_icr_idle(void);
+ ++extern u64 xapic_icr_read(void);
+ ++extern void xapic_icr_write(u32, u32);
+ ++extern int setup_profiling_timer(unsigned int);
    
 - -static inline void native_apic_write(unsigned long reg, u32 v)
 + +static inline void native_apic_mem_write(u32 reg, u32 v)
    {
    	volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg);
    
diff --cc include/asm-x86/traps.h
index 2a891a704719,b60fab546da7,a4b65a71bd66,a4b65a71bd66..2ccebc6fb0b0
--- a/include/asm-x86/traps.h
+++ b/include/asm-x86/traps.h
@@@@@ -62,5 -64,7 -62,5 -62,5 +64,7 @@@@@ asmlinkage void do_coprocessor_error(st
    asmlinkage void do_simd_coprocessor_error(struct pt_regs *);
    asmlinkage void do_spurious_interrupt_bug(struct pt_regs *);
    
+ ++asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
+ ++
    #endif /* CONFIG_X86_32 */
 ---#endif /* _ASM_X86_TRAPS_H */
 +++#endif /* ASM_X86__TRAPS_H */