1 files changed, 125 insertions, 0 deletions

diff --git a/arch/mips/include/asm/sn/nmi.h b/arch/mips/include/asm/sn/nmi.h
new file mode 100644
index 000000000000..6b7b0b5f3729
--- /dev/null
+++ b/arch/mips/include/asm/sn/nmi.h
@@ -0,0 +1,125 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1992 - 1997 Silicon Graphics, Inc.
+ */
+#ifndef __ASM_SN_NMI_H
+#define __ASM_SN_NMI_H
+
+#ident "$Revision: 1.5 $"
+
+#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
+ * processors.
+ *
+ * The master stores launch parameters in the launch structure
+ * corresponding to a target processor that is in a slave loop, then sends
+ * an interrupt to the slave processor.  The slave calls the desired
+ * function, followed by an optional rendezvous function, then returns to
+ * the slave loop.  The master does not wait for the slaves before
+ * returning.
+ *
+ * There is an array of launch structures, one per CPU on the node.  One
+ * interrupt level is used per CPU.
+ */
+
+#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
+ * correct.
+ *
+ * Before control is transferred to a routine, the complement address
+ * is zeroed (invalidated) to prevent an accidental call from a spurious
+ * interrupt.
+ *
+ */
+
+#ifndef __ASSEMBLY__
+
+typedef struct nmi_s {
+        volatile unsigned long   magic;         /* Magic number */
+        volatile unsigned long   flags;         /* Combination of flags above */
+        volatile void *call_addr;       /* Routine for slave to call        */
+        volatile void *call_addr_c;     /* 1's complement of address        */
+        volatile void *call_parm;       /* Single parm passed to call       */
+        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;
+        unsigned long   cause;
+        unsigned long   epc;
+        unsigned long   badva;
+        unsigned long   error_epc;
+        unsigned long   cache_err;
+        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 */