x86: introducing asm-x86/traps.h

Declaring x86 traps under one hood.
Declaring x86 do_traps before defining them.

Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/traps_32.c

@@ -58,6 +58,7 @@
 #include <asm/nmi.h>
 #include <asm/smp.h>
 #include <asm/io.h>
+#include <asm/traps.h>
 
 #include "mach_traps.h"
 
@@ -77,26 +78,6 @@ char ignore_fpu_irq;
 gate_desc idt_table[256]
 	__attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
 
-asmlinkage void divide_error(void);
-asmlinkage void debug(void);
-asmlinkage void nmi(void);
-asmlinkage void int3(void);
-asmlinkage void overflow(void);
-asmlinkage void bounds(void);
-asmlinkage void invalid_op(void);
-asmlinkage void device_not_available(void);
-asmlinkage void coprocessor_segment_overrun(void);
-asmlinkage void invalid_TSS(void);
-asmlinkage void segment_not_present(void);
-asmlinkage void stack_segment(void);
-asmlinkage void general_protection(void);
-asmlinkage void page_fault(void);
-asmlinkage void coprocessor_error(void);
-asmlinkage void simd_coprocessor_error(void);
-asmlinkage void alignment_check(void);
-asmlinkage void spurious_interrupt_bug(void);
-asmlinkage void machine_check(void);
-
 int panic_on_unrecovered_nmi;
 int kstack_depth_to_print = 24;
 static unsigned int code_bytes = 64;

arch/x86/kernel/traps_64.c

@@ -51,30 +51,10 @@
 #include <asm/pgalloc.h>
 #include <asm/proto.h>
 #include <asm/pda.h>
+#include <asm/traps.h>
 
 #include <mach_traps.h>
 
-asmlinkage void divide_error(void);
-asmlinkage void debug(void);
-asmlinkage void nmi(void);
-asmlinkage void int3(void);
-asmlinkage void overflow(void);
-asmlinkage void bounds(void);
-asmlinkage void invalid_op(void);
-asmlinkage void device_not_available(void);
-asmlinkage void double_fault(void);
-asmlinkage void coprocessor_segment_overrun(void);
-asmlinkage void invalid_TSS(void);
-asmlinkage void segment_not_present(void);
-asmlinkage void stack_segment(void);
-asmlinkage void general_protection(void);
-asmlinkage void page_fault(void);
-asmlinkage void coprocessor_error(void);
-asmlinkage void simd_coprocessor_error(void);
-asmlinkage void alignment_check(void);
-asmlinkage void spurious_interrupt_bug(void);
-asmlinkage void machine_check(void);
-
 int panic_on_unrecovered_nmi;
 int kstack_depth_to_print = 12;
 static unsigned int code_bytes = 64;

include/asm-x86/traps.h

@@ -0,0 +1,66 @@
+#ifndef _ASM_X86_TRAPS_H
+#define _ASM_X86_TRAPS_H
+
+/* Common in X86_32 and X86_64 */
+asmlinkage void divide_error(void);
+asmlinkage void debug(void);
+asmlinkage void nmi(void);
+asmlinkage void int3(void);
+asmlinkage void overflow(void);
+asmlinkage void bounds(void);
+asmlinkage void invalid_op(void);
+asmlinkage void device_not_available(void);
+asmlinkage void coprocessor_segment_overrun(void);
+asmlinkage void invalid_TSS(void);
+asmlinkage void segment_not_present(void);
+asmlinkage void stack_segment(void);
+asmlinkage void general_protection(void);
+asmlinkage void page_fault(void);
+asmlinkage void coprocessor_error(void);
+asmlinkage void simd_coprocessor_error(void);
+asmlinkage void alignment_check(void);
+asmlinkage void spurious_interrupt_bug(void);
+#ifdef CONFIG_X86_MCE
+asmlinkage void machine_check(void);
+#endif /* CONFIG_X86_MCE */
+
+void do_divide_error(struct pt_regs *, long);
+void do_overflow(struct pt_regs *, long);
+void do_bounds(struct pt_regs *, long);
+void do_coprocessor_segment_overrun(struct pt_regs *, long);
+void do_invalid_TSS(struct pt_regs *, long);
+void do_segment_not_present(struct pt_regs *, long);
+void do_stack_segment(struct pt_regs *, long);
+void do_alignment_check(struct pt_regs *, long);
+void do_invalid_op(struct pt_regs *, long);
+void do_general_protection(struct pt_regs *, long);
+void do_nmi(struct pt_regs *, long);
+
+extern int panic_on_unrecovered_nmi;
+extern int kstack_depth_to_print;
+
+#ifdef CONFIG_X86_32
+
+void do_iret_error(struct pt_regs *, long);
+void do_int3(struct pt_regs *, long);
+void do_debug(struct pt_regs *, long);
+void math_error(void __user *);
+void do_coprocessor_error(struct pt_regs *, long);
+void do_simd_coprocessor_error(struct pt_regs *, long);
+void do_spurious_interrupt_bug(struct pt_regs *, long);
+unsigned long patch_espfix_desc(unsigned long, unsigned long);
+asmlinkage void math_emulate(long);
+
+#else /* CONFIG_X86_32 */
+
+asmlinkage void double_fault(void);
+
+asmlinkage void do_int3(struct pt_regs *, long);
+asmlinkage void do_stack_segment(struct pt_regs *, long);
+asmlinkage void do_debug(struct pt_regs *, unsigned long);
+asmlinkage void do_coprocessor_error(struct pt_regs *);
+asmlinkage void do_simd_coprocessor_error(struct pt_regs *);
+asmlinkage void do_spurious_interrupt_bug(struct pt_regs *);
+
+#endif /* CONFIG_X86_32 */
+#endif /* _ASM_X86_TRAPS_H */