[mirror_ubuntu-artful-kernel.git] / arch / mips / math-emu / dsemul.h

typedef long gpreg_t;
typedef void *vaddr_t;

#define REG_TO_VA (vaddr_t)
#define VA_TO_REG (gpreg_t)

int mips_dsemul(struct pt_regs *regs, mips_instruction ir, gpreg_t cpc);
int do_dsemulret(struct pt_regs *xcp);

/* Instruction which will always cause an address error */
#define AdELOAD 0x8c000001	/* lw $0,1($0) */
/* Instruction which will plainly cause a CP1 exception when FPU is disabled */
#define CP1UNDEF 0x44400001    /* cfc1 $0,$0 undef  */

/* Instruction inserted following the badinst to further tag the sequence */
#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */

/* Setup which instruction to use for trampoline */
#ifdef STANDALONE_EMULATOR
#define BADINST CP1UNDEF
#else
#define BADINST AdELOAD
#endif
Commit	Line	Data
1da177e4 LT	1	typedef long gpreg_t;
	2	typedef void *vaddr_t;
	3
	4	#define REG_TO_VA (vaddr_t)
	5	#define VA_TO_REG (gpreg_t)
	6
	7	int mips_dsemul(struct pt_regs *regs, mips_instruction ir, gpreg_t cpc);
	8	int do_dsemulret(struct pt_regs *xcp);
	9
	10	/* Instruction which will always cause an address error */
	11	#define AdELOAD 0x8c000001 /* lw $0,1($0) */
	12	/* Instruction which will plainly cause a CP1 exception when FPU is disabled */
	13	#define CP1UNDEF 0x44400001 /* cfc1 $0,$0 undef */
	14
	15	/* Instruction inserted following the badinst to further tag the sequence */
	16	#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
	17
	18	/* Setup which instruction to use for trampoline */
	19	#ifdef STANDALONE_EMULATOR
	20	#define BADINST CP1UNDEF
	21	#else
	22	#define BADINST AdELOAD
	23	#endif