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/*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Further private data for which no space exists in mips_fpu_struct.
* This should be subsumed into the mips_fpu_struct structure as
* defined in processor.h as soon as the absurd wired absolute assembler
* offsets become dynamic at compile time.
*
* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*/
#ifndef _ASM_FPU_EMULATOR_H
#define _ASM_FPU_EMULATOR_H
#include <asm/break.h>
#include <asm/inst.h>
#include <asm/local.h>
#ifdef CONFIG_DEBUG_FS
struct mips_fpu_emulator_stats {
local_t emulated;
local_t loads;
local_t stores;
local_t cp1ops;
local_t cp1xops;
local_t errors;
};
DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
#define MIPS_FPU_EMU_INC_STATS(M) \
do { \
preempt_disable(); \
__local_inc(&__get_cpu_var(fpuemustats).M); \
preempt_enable(); \
} while (0)
#else
#define MIPS_FPU_EMU_INC_STATS(M) do { } while (0)
#endif /* CONFIG_DEBUG_FS */
extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
unsigned long cpc);
extern int do_dsemulret(struct pt_regs *xcp);
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_struct *ctx, int has_fpu,
void *__user *fault_addr);
int process_fpemu_return(int sig, void __user *fault_addr);
int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
unsigned long *contpc);
/*
* 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 */