188 lines
4.7 KiB
C
188 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
*
|
|
* 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 <linux/sched.h>
|
|
#include <asm/dsemul.h>
|
|
#include <asm/thread_info.h>
|
|
#include <asm/inst.h>
|
|
#include <asm/local.h>
|
|
#include <asm/processor.h>
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
struct mips_fpu_emulator_stats {
|
|
unsigned long emulated;
|
|
unsigned long loads;
|
|
unsigned long stores;
|
|
unsigned long branches;
|
|
unsigned long cp1ops;
|
|
unsigned long cp1xops;
|
|
unsigned long errors;
|
|
unsigned long ieee754_inexact;
|
|
unsigned long ieee754_underflow;
|
|
unsigned long ieee754_overflow;
|
|
unsigned long ieee754_zerodiv;
|
|
unsigned long ieee754_invalidop;
|
|
unsigned long ds_emul;
|
|
|
|
unsigned long abs_s;
|
|
unsigned long abs_d;
|
|
unsigned long add_s;
|
|
unsigned long add_d;
|
|
unsigned long bc1eqz;
|
|
unsigned long bc1nez;
|
|
unsigned long ceil_w_s;
|
|
unsigned long ceil_w_d;
|
|
unsigned long ceil_l_s;
|
|
unsigned long ceil_l_d;
|
|
unsigned long class_s;
|
|
unsigned long class_d;
|
|
unsigned long cmp_af_s;
|
|
unsigned long cmp_af_d;
|
|
unsigned long cmp_eq_s;
|
|
unsigned long cmp_eq_d;
|
|
unsigned long cmp_le_s;
|
|
unsigned long cmp_le_d;
|
|
unsigned long cmp_lt_s;
|
|
unsigned long cmp_lt_d;
|
|
unsigned long cmp_ne_s;
|
|
unsigned long cmp_ne_d;
|
|
unsigned long cmp_or_s;
|
|
unsigned long cmp_or_d;
|
|
unsigned long cmp_ueq_s;
|
|
unsigned long cmp_ueq_d;
|
|
unsigned long cmp_ule_s;
|
|
unsigned long cmp_ule_d;
|
|
unsigned long cmp_ult_s;
|
|
unsigned long cmp_ult_d;
|
|
unsigned long cmp_un_s;
|
|
unsigned long cmp_un_d;
|
|
unsigned long cmp_une_s;
|
|
unsigned long cmp_une_d;
|
|
unsigned long cmp_saf_s;
|
|
unsigned long cmp_saf_d;
|
|
unsigned long cmp_seq_s;
|
|
unsigned long cmp_seq_d;
|
|
unsigned long cmp_sle_s;
|
|
unsigned long cmp_sle_d;
|
|
unsigned long cmp_slt_s;
|
|
unsigned long cmp_slt_d;
|
|
unsigned long cmp_sne_s;
|
|
unsigned long cmp_sne_d;
|
|
unsigned long cmp_sor_s;
|
|
unsigned long cmp_sor_d;
|
|
unsigned long cmp_sueq_s;
|
|
unsigned long cmp_sueq_d;
|
|
unsigned long cmp_sule_s;
|
|
unsigned long cmp_sule_d;
|
|
unsigned long cmp_sult_s;
|
|
unsigned long cmp_sult_d;
|
|
unsigned long cmp_sun_s;
|
|
unsigned long cmp_sun_d;
|
|
unsigned long cmp_sune_s;
|
|
unsigned long cmp_sune_d;
|
|
unsigned long cvt_d_l;
|
|
unsigned long cvt_d_s;
|
|
unsigned long cvt_d_w;
|
|
unsigned long cvt_l_s;
|
|
unsigned long cvt_l_d;
|
|
unsigned long cvt_s_d;
|
|
unsigned long cvt_s_l;
|
|
unsigned long cvt_s_w;
|
|
unsigned long cvt_w_s;
|
|
unsigned long cvt_w_d;
|
|
unsigned long div_s;
|
|
unsigned long div_d;
|
|
unsigned long floor_w_s;
|
|
unsigned long floor_w_d;
|
|
unsigned long floor_l_s;
|
|
unsigned long floor_l_d;
|
|
unsigned long maddf_s;
|
|
unsigned long maddf_d;
|
|
unsigned long max_s;
|
|
unsigned long max_d;
|
|
unsigned long maxa_s;
|
|
unsigned long maxa_d;
|
|
unsigned long min_s;
|
|
unsigned long min_d;
|
|
unsigned long mina_s;
|
|
unsigned long mina_d;
|
|
unsigned long mov_s;
|
|
unsigned long mov_d;
|
|
unsigned long msubf_s;
|
|
unsigned long msubf_d;
|
|
unsigned long mul_s;
|
|
unsigned long mul_d;
|
|
unsigned long neg_s;
|
|
unsigned long neg_d;
|
|
unsigned long recip_s;
|
|
unsigned long recip_d;
|
|
unsigned long rint_s;
|
|
unsigned long rint_d;
|
|
unsigned long round_w_s;
|
|
unsigned long round_w_d;
|
|
unsigned long round_l_s;
|
|
unsigned long round_l_d;
|
|
unsigned long rsqrt_s;
|
|
unsigned long rsqrt_d;
|
|
unsigned long sel_s;
|
|
unsigned long sel_d;
|
|
unsigned long seleqz_s;
|
|
unsigned long seleqz_d;
|
|
unsigned long selnez_s;
|
|
unsigned long selnez_d;
|
|
unsigned long sqrt_s;
|
|
unsigned long sqrt_d;
|
|
unsigned long sub_s;
|
|
unsigned long sub_d;
|
|
unsigned long trunc_w_s;
|
|
unsigned long trunc_w_d;
|
|
unsigned long trunc_l_s;
|
|
unsigned long trunc_l_d;
|
|
};
|
|
|
|
DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
|
|
|
|
#define MIPS_FPU_EMU_INC_STATS(M) \
|
|
do { \
|
|
preempt_disable(); \
|
|
__this_cpu_inc(fpuemustats.M); \
|
|
preempt_enable(); \
|
|
} while (0)
|
|
|
|
#else
|
|
#define MIPS_FPU_EMU_INC_STATS(M) do { } while (0)
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
|
|
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
|
|
struct mips_fpu_struct *ctx, int has_fpu,
|
|
void __user **fault_addr);
|
|
void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
|
|
struct task_struct *tsk);
|
|
int process_fpemu_return(int sig, void __user *fault_addr,
|
|
unsigned long fcr31);
|
|
|
|
/*
|
|
* Mask the FCSR Cause bits according to the Enable bits, observing
|
|
* that Unimplemented is always enabled.
|
|
*/
|
|
static inline unsigned long mask_fcr31_x(unsigned long fcr31)
|
|
{
|
|
return fcr31 & (FPU_CSR_UNI_X |
|
|
((fcr31 & FPU_CSR_ALL_E) <<
|
|
(ffs(FPU_CSR_ALL_X) - ffs(FPU_CSR_ALL_E))));
|
|
}
|
|
|
|
#endif /* _ASM_FPU_EMULATOR_H */
|