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2 * arch/xtensa/include/asm/traps.h
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (C) 2012 Tensilica Inc.
10 #ifndef _XTENSA_TRAPS_H
11 #define _XTENSA_TRAPS_H
13 #include <asm/ptrace.h>
16 * handler must be either of the following:
17 * void (*)(struct pt_regs *regs);
18 * void (*)(struct pt_regs *regs, unsigned long exccause);
20 extern void * __init
trap_set_handler(int cause
, void *handler
);
21 extern void do_unhandled(struct pt_regs
*regs
, unsigned long exccause
);
22 void secondary_trap_init(void);
24 static inline void spill_registers(void)
27 __asm__
__volatile__ (
28 "movi a14, "__stringify((1 << PS_EXCM_BIT
) | LOCKLEVEL
)"\n\t"
32 "movi a0, _spill_registers\n\t"
39 #if defined(CONFIG_FRAME_POINTER)
40 : "a2", "a3", "a4", "a11", "a12", "a13", "a14", "a15",
42 : "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15",
47 #endif /* _XTENSA_TRAPS_H */