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/*
* 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) 2014 Imagination Technologies Ltd.
* Author: Markos Chandras <markos.chandras@imgtec.com>
*/
#ifndef __ASM_MIPS_R2_TO_R6_EMUL_H
#define __ASM_MIPS_R2_TO_R6_EMUL_H
struct mips_r2_emulator_stats {
u64 movs;
u64 hilo;
u64 muls;
u64 divs;
u64 dsps;
u64 bops;
u64 traps;
u64 fpus;
u64 loads;
u64 stores;
u64 llsc;
u64 dsemul;
};
struct mips_r2br_emulator_stats {
u64 jrs;
u64 bltzl;
u64 bgezl;
u64 bltzll;
u64 bgezll;
u64 bltzall;
u64 bgezall;
u64 bltzal;
u64 bgezal;
u64 beql;
u64 bnel;
u64 blezl;
u64 bgtzl;
};
#ifdef CONFIG_DEBUG_FS
#define MIPS_R2_STATS(M) \
do { \
u32 nir; \
int err; \
\
preempt_disable(); \
__this_cpu_inc(mipsr2emustats.M); \
err = __get_user(nir, (u32 __user *)regs->cp0_epc); \
if (!err) { \
if (nir == BREAK_MATH) \
__this_cpu_inc(mipsr2bdemustats.M); \
} \
preempt_enable(); \
} while (0)
#define MIPS_R2BR_STATS(M) \
do { \
preempt_disable(); \
__this_cpu_inc(mipsr2bremustats.M); \
preempt_enable(); \
} while (0)
#else
#define MIPS_R2_STATS(M) do { } while (0)
#define MIPS_R2BR_STATS(M) do { } while (0)
#endif /* CONFIG_DEBUG_FS */
struct r2_decoder_table {
u32 mask;
u32 code;
int (*func)(struct pt_regs *regs, u32 inst);
};
extern void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
const char *str);
#ifndef CONFIG_MIPSR2_TO_R6_EMULATOR
static int mipsr2_emulation;
static inline int mipsr2_decoder(struct pt_regs *regs, u32 inst,
unsigned long *fcr31)
{
return 0;
};
#else
/* MIPS R2 Emulator ON/OFF */
extern int mipsr2_emulation;
extern int mipsr2_decoder(struct pt_regs *regs, u32 inst,
unsigned long *fcr31);
#endif /* CONFIG_MIPSR2_TO_R6_EMULATOR */
#define NO_R6EMU (cpu_has_mips_r6 && !mipsr2_emulation)
#endif /* __ASM_MIPS_R2_TO_R6_EMUL_H */
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