Release 4.14 arch/mips/include/asm/mips-r2-to-r6-emul.h

/*
 * 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(0))                               \
                        __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, int si_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;
}
Contributors
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CommitProp
Leonid Yegoshin
17
73.91%
1
33.33%
Maciej W. Rozycki
6
26.09%
2
66.67%
Total
23
100.00%
3
100.00%

;
#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 */
Overall Contributors
Person
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CommitProp
Leonid Yegoshin
229
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1
20.00%
Maciej W. Rozycki
15
6.15%
4
80.00%
Total
244
100.00%
5
100.00%
Directory: arch/mips/include/asm

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