diff options
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/break.h | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/fpu_emulator.h | 17 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/mips/include/asm/break.h b/arch/mips/include/asm/break.h index 25b980c91e7..44437ed765e 100644 --- a/arch/mips/include/asm/break.h +++ b/arch/mips/include/asm/break.h @@ -29,6 +29,7 @@ #define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */ #define BRK_BUG 512 /* Used by BUG() */ #define BRK_KDB 513 /* Used in KDB_ENTER() */ +#define BRK_MEMU 514 /* Used by FPU emulator */ #define BRK_MULOVF 1023 /* Multiply overflow */ #endif /* __ASM_BREAK_H */ diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h index 2731c38bd7a..e5189572956 100644 --- a/arch/mips/include/asm/fpu_emulator.h +++ b/arch/mips/include/asm/fpu_emulator.h @@ -23,6 +23,9 @@ #ifndef _ASM_FPU_EMULATOR_H #define _ASM_FPU_EMULATOR_H +#include <asm/break.h> +#include <asm/inst.h> + struct mips_fpu_emulator_stats { unsigned int emulated; unsigned int loads; @@ -34,4 +37,18 @@ struct mips_fpu_emulator_stats { extern struct mips_fpu_emulator_stats fpuemustats; +extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, + unsigned long cpc); +extern int do_dsemulret(struct pt_regs *xcp); + +/* + * Instruction inserted following the badinst to further tag the sequence + */ +#define BD_COOKIE 0x0000bd36 /* tne $0, $0 with baggage */ + +/* + * Break instruction with special math emu break code set + */ +#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16)) + #endif /* _ASM_FPU_EMULATOR_H */ |