diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst
index 62a3a2113e7c..7dada7abc733 100644
--- a/Documentation/process/magic-number.rst
+++ b/Documentation/process/magic-number.rst
@@ -76,5 +76,4 @@ KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/incl
 CCB_MAGIC             0xf2691ad2       ccb                      ``drivers/scsi/ncr53c8xx.c``
 QUEUE_MAGIC_FREE      0xf7e1c9a3       queue_entry              ``drivers/scsi/arm/queue.c``
 QUEUE_MAGIC_USED      0xf7e1cc33       queue_entry              ``drivers/scsi/arm/queue.c``
-NMI_MAGIC             0x48414d4d455201 nmi_s                    ``arch/mips/include/asm/sn/nmi.h``
 ===================== ================ ======================== ==========================================
diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst
index b20a54ee6fb2..f9634a04d349 100644
--- a/Documentation/translations/it_IT/process/magic-number.rst
+++ b/Documentation/translations/it_IT/process/magic-number.rst
@@ -82,5 +82,4 @@ KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/incl
 CCB_MAGIC             0xf2691ad2       ccb                      ``drivers/scsi/ncr53c8xx.c``
 QUEUE_MAGIC_FREE      0xf7e1c9a3       queue_entry              ``drivers/scsi/arm/queue.c``
 QUEUE_MAGIC_USED      0xf7e1cc33       queue_entry              ``drivers/scsi/arm/queue.c``
-NMI_MAGIC             0x48414d4d455201 nmi_s                    ``arch/mips/include/asm/sn/nmi.h``
 ===================== ================ ======================== ==========================================
diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst
index e7781ab923f7..966b9e6b1a46 100644
--- a/Documentation/translations/zh_CN/process/magic-number.rst
+++ b/Documentation/translations/zh_CN/process/magic-number.rst
@@ -65,5 +65,4 @@ KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/incl
 CCB_MAGIC             0xf2691ad2       ccb                      ``drivers/scsi/ncr53c8xx.c``
 QUEUE_MAGIC_FREE      0xf7e1c9a3       queue_entry              ``drivers/scsi/arm/queue.c``
 QUEUE_MAGIC_USED      0xf7e1cc33       queue_entry              ``drivers/scsi/arm/queue.c``
-NMI_MAGIC             0x48414d4d455201 nmi_s                    ``arch/mips/include/asm/sn/nmi.h``
 ===================== ================ ======================== ==========================================
diff --git a/Documentation/translations/zh_TW/process/magic-number.rst b/Documentation/translations/zh_TW/process/magic-number.rst
index 5cc0bfa97d9d..f3e87a6b3a01 100644
--- a/Documentation/translations/zh_TW/process/magic-number.rst
+++ b/Documentation/translations/zh_TW/process/magic-number.rst
@@ -68,5 +68,4 @@ KV_MAGIC              0x5f4b565f       kernel_vars_s            ``arch/mips/incl
 CCB_MAGIC             0xf2691ad2       ccb                      ``drivers/scsi/ncr53c8xx.c``
 QUEUE_MAGIC_FREE      0xf7e1c9a3       queue_entry              ``drivers/scsi/arm/queue.c``
 QUEUE_MAGIC_USED      0xf7e1cc33       queue_entry              ``drivers/scsi/arm/queue.c``
-NMI_MAGIC             0x48414d4d455201 nmi_s                    ``arch/mips/include/asm/sn/nmi.h``
 ===================== ================ ======================== ==========================================
diff --git a/arch/mips/include/asm/sn/nmi.h b/arch/mips/include/asm/sn/nmi.h
index 12ac210f12a1..0bd9458fc804 100644
--- a/arch/mips/include/asm/sn/nmi.h
+++ b/arch/mips/include/asm/sn/nmi.h
@@ -10,8 +10,6 @@
 #ifndef __ASM_SN_NMI_H
 #define __ASM_SN_NMI_H
 
-#include <asm/sn/addrs.h>
-
 /*
  * The launch data structure resides at a fixed place in each node's memory
  * and is used to communicate between the master processor and the slave
@@ -29,14 +27,6 @@
  */
 
 #define NMI_MAGIC		0x48414d4d455201
-#define NMI_SIZEOF		0x40
-
-#define NMI_OFF_MAGIC		0x00	/* Struct offsets for assembly	    */
-#define NMI_OFF_FLAGS		0x08
-#define NMI_OFF_CALL		0x10
-#define NMI_OFF_CALLC		0x18
-#define NMI_OFF_CALLPARM	0x20
-#define NMI_OFF_GMASTER		0x28
 
 /*
  * The NMI routine is called only if the complement address is
@@ -48,8 +38,6 @@
  *
  */
 
-#ifndef __ASSEMBLY__
-
 typedef struct nmi_s {
 	volatile unsigned long	 magic;		/* Magic number */
 	volatile unsigned long	 flags;		/* Combination of flags above */
@@ -59,14 +47,10 @@ typedef struct nmi_s {
 	volatile unsigned long	 gmaster;	/* Flag true only on global master*/
 } nmi_t;
 
-#endif /* !__ASSEMBLY__ */
-
 /* Following definitions are needed both in the prom & the kernel
  * to identify the format of the nmi cpu register save area in the
  * low memory on each node.
  */
-#ifndef __ASSEMBLY__
-
 struct reg_struct {
 	unsigned long	gpr[32];
 	unsigned long	sr;
@@ -78,48 +62,4 @@ struct reg_struct {
 	unsigned long	nmi_sr;
 };
 
-#endif /* !__ASSEMBLY__ */
-
-/* These are the assembly language offsets into the reg_struct structure */
-
-#define R0_OFF		0x0
-#define R1_OFF		0x8
-#define R2_OFF		0x10
-#define R3_OFF		0x18
-#define R4_OFF		0x20
-#define R5_OFF		0x28
-#define R6_OFF		0x30
-#define R7_OFF		0x38
-#define R8_OFF		0x40
-#define R9_OFF		0x48
-#define R10_OFF		0x50
-#define R11_OFF		0x58
-#define R12_OFF		0x60
-#define R13_OFF		0x68
-#define R14_OFF		0x70
-#define R15_OFF		0x78
-#define R16_OFF		0x80
-#define R17_OFF		0x88
-#define R18_OFF		0x90
-#define R19_OFF		0x98
-#define R20_OFF		0xa0
-#define R21_OFF		0xa8
-#define R22_OFF		0xb0
-#define R23_OFF		0xb8
-#define R24_OFF		0xc0
-#define R25_OFF		0xc8
-#define R26_OFF		0xd0
-#define R27_OFF		0xd8
-#define R28_OFF		0xe0
-#define R29_OFF		0xe8
-#define R30_OFF		0xf0
-#define R31_OFF		0xf8
-#define SR_OFF		0x100
-#define CAUSE_OFF	0x108
-#define EPC_OFF		0x110
-#define BADVA_OFF	0x118
-#define ERROR_EPC_OFF	0x120
-#define CACHE_ERR_OFF	0x128
-#define NMISR_OFF	0x130
-
 #endif /* __ASM_SN_NMI_H */
