5 files changed, 60 insertions, 44 deletions

diff --git a/include/asm-i386/bitops.h b/include/asm-i386/bitops.h
index 9db0b712d57a..ddf1739dc7fd 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -311,6 +311,20 @@ static inline int find_first_zero_bit(const unsigned long *addr, unsigned size)
 int find_next_zero_bit(const unsigned long *addr, int size, int offset);
 
 /**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+	__asm__("bsfl %1,%0"
+		:"=r" (word)
+		:"rm" (word));
+	return word;
+}
+
+/**
  * find_first_bit - find the first set bit in a memory region
  * @addr: The address to start the search at
  * @size: The maximum size to search
@@ -320,22 +334,15 @@ int find_next_zero_bit(const unsigned long *addr, int size, int offset);
  */
 static inline int find_first_bit(const unsigned long *addr, unsigned size)
 {
-	int d0, d1;
-	int res;
-
-	/* This looks at memory. Mark it volatile to tell gcc not to move it around */
-	__asm__ __volatile__(
-		"xorl %%eax,%%eax\n\t"
-		"repe; scasl\n\t"
-		"jz 1f\n\t"
-		"leal -4(%%edi),%%edi\n\t"
-		"bsfl (%%edi),%%eax\n"
-		"1:\tsubl %%ebx,%%edi\n\t"
-		"shll $3,%%edi\n\t"
-		"addl %%edi,%%eax"
-		:"=a" (res), "=&c" (d0), "=&D" (d1)
-		:"1" ((size + 31) >> 5), "2" (addr), "b" (addr) : "memory");
-	return res;
+	int x = 0;
+
+	while (x < size) {
+		unsigned long val = *addr++;
+		if (val)
+			return __ffs(val) + x;
+		x += (sizeof(*addr)<<3);
+	}
+	return x;
 }
 
 /**
@@ -360,20 +367,6 @@ static inline unsigned long ffz(unsigned long word)
 	return word;
 }
 
-/**
- * __ffs - find first bit in word.
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs(unsigned long word)
-{
-	__asm__("bsfl %1,%0"
-		:"=r" (word)
-		:"rm" (word));
-	return word;
-}
-
 /*
  * fls: find last bit set.
  */
diff --git a/include/asm-i386/emergency-restart.h b/include/asm-i386/emergency-restart.h
new file mode 100644
index 000000000000..680c39563345
--- /dev/null
+++ b/include/asm-i386/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+extern void machine_emergency_restart(void);
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/include/asm-i386/i387.h b/include/asm-i386/i387.h
index f6feb98a9397..6747006743f9 100644
--- a/include/asm-i386/i387.h
+++ b/include/asm-i386/i387.h
@@ -19,10 +19,21 @@
 
 extern void mxcsr_feature_mask_init(void);
 extern void init_fpu(struct task_struct *);
+
 /*
  * FPU lazy state save handling...
  */
-extern void restore_fpu( struct task_struct *tsk );
+
+/*
+ * The "nop" is needed to make the instructions the same
+ * length.
+ */
+#define restore_fpu(tsk)			\
+	alternative_input(			\
+		"nop ; frstor %1",		\
+		"fxrstor %1",			\
+		X86_FEATURE_FXSR,		\
+		"m" ((tsk)->thread.i387.fxsave))
 
 extern void kernel_fpu_begin(void);
 #define kernel_fpu_end() do { stts(); preempt_enable(); } while(0)
@@ -32,13 +43,12 @@ extern void kernel_fpu_begin(void);
  */
 static inline void __save_init_fpu( struct task_struct *tsk )
 {
-	if ( cpu_has_fxsr ) {
-		asm volatile( "fxsave %0 ; fnclex"
-			      : "=m" (tsk->thread.i387.fxsave) );
-	} else {
-		asm volatile( "fnsave %0 ; fwait"
-			      : "=m" (tsk->thread.i387.fsave) );
-	}
+	alternative_input(
+		"fnsave %1 ; fwait ;" GENERIC_NOP2,
+		"fxsave %1 ; fnclex",
+		X86_FEATURE_FXSR,
+		"m" (tsk->thread.i387.fxsave)
+		:"memory");
 	tsk->thread_info->status &= ~TS_USEDFPU;
 }
 
diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
index eef9f93870d4..05532875e39e 100644
--- a/include/asm-i386/ptrace.h
+++ b/include/asm-i386/ptrace.h
@@ -55,16 +55,26 @@ struct pt_regs {
 #define PTRACE_SET_THREAD_AREA    26
 
 #ifdef __KERNEL__
+
+#include <asm/vm86.h>
+
 struct task_struct;
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
-#define user_mode(regs)		(3 & (regs)->xcs)
-#define user_mode_vm(regs)	((VM_MASK & (regs)->eflags) || user_mode(regs))
+
+static inline int user_mode(struct pt_regs *regs)
+{
+	return (regs->xcs & 3) != 0;
+}
+static inline int user_mode_vm(struct pt_regs *regs)
+{
+	return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+}
 #define instruction_pointer(regs) ((regs)->eip)
 #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
 extern unsigned long profile_pc(struct pt_regs *regs);
 #else
 #define profile_pc(regs) instruction_pointer(regs)
 #endif
-#endif
+#endif /* __KERNEL__ */
 
 #endif
diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h
index edad9b4712fa..a283738b80b3 100644
--- a/include/asm-i386/smp.h
+++ b/include/asm-i386/smp.h
@@ -37,9 +37,6 @@ extern int smp_num_siblings;
 extern cpumask_t cpu_sibling_map[];
 extern cpumask_t cpu_core_map[];
 
-extern void smp_flush_tlb(void);
-extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs);
-extern void smp_invalidate_rcv(void);		/* Process an NMI */
 extern void (*mtrr_hook) (void);
 extern void zap_low_mappings (void);
 extern void lock_ipi_call_lock(void);