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Diffstat (limited to 'arch/mips/kernel/traps.c')
-rw-r--r--arch/mips/kernel/traps.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c8e291c83057..6379003f9d8d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -606,6 +606,8 @@ asmlinkage void do_ov(struct pt_regs *regs)
*/
asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
{
+ siginfo_t info;
+
die_if_kernel("FP exception in kernel code", regs);
if (fcr31 & FPU_CSR_UNI_X) {
@@ -641,9 +643,22 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
force_sig(sig, current);
return;
- }
-
- force_sig(SIGFPE, current);
+ } else if (fcr31 & FPU_CSR_INV_X)
+ info.si_code = FPE_FLTINV;
+ else if (fcr31 & FPU_CSR_DIV_X)
+ info.si_code = FPE_FLTDIV;
+ else if (fcr31 & FPU_CSR_OVF_X)
+ info.si_code = FPE_FLTOVF;
+ else if (fcr31 & FPU_CSR_UDF_X)
+ info.si_code = FPE_FLTUND;
+ else if (fcr31 & FPU_CSR_INE_X)
+ info.si_code = FPE_FLTRES;
+ else
+ info.si_code = __SI_FAULT;
+ info.si_signo = SIGFPE;
+ info.si_errno = 0;
+ info.si_addr = (void __user *) regs->cp0_epc;
+ force_sig_info(SIGFPE, &info, current);
}
asmlinkage void do_bp(struct pt_regs *regs)
@@ -1035,19 +1050,11 @@ void ejtag_exception_handler(struct pt_regs *regs)
/*
* NMI exception handler.
*/
-void nmi_exception_handler(struct pt_regs *regs)
+NORET_TYPE void ATTRIB_NORET nmi_exception_handler(struct pt_regs *regs)
{
-#ifdef CONFIG_MIPS_MT_SMTC
- unsigned long dvpret = dvpe();
- bust_spinlocks(1);
- printk("NMI taken!!!!\n");
- mips_mt_regdump(dvpret);
-#else
bust_spinlocks(1);
printk("NMI taken!!!!\n");
-#endif /* CONFIG_MIPS_MT_SMTC */
die("NMI", regs);
- while(1) ;
}
#define VECTORSPACING 0x100 /* for EI/VI mode */