static inline int get_insn_opcode(struct pt_regs *regs, unsigned int *opcode)
{
- unsigned int *epc;
+ unsigned int __user *epc;
- epc = (unsigned int *) regs->cp0_epc +
+ epc = (unsigned int __user *) regs->cp0_epc +
((regs->cp0_cause & CAUSEF_BD) != 0);
if (!get_user(*opcode, epc))
return 0;
static inline void simulate_ll(struct pt_regs *regs, unsigned int opcode)
{
- unsigned long value, *vaddr;
+ unsigned long value, __user *vaddr;
long offset;
int signal = 0;
offset <<= 16;
offset >>= 16;
- vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
+ vaddr = (unsigned long __user *)
+ ((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
if ((unsigned long)vaddr & 3) {
signal = SIGBUS;
preempt_enable();
+ compute_return_epc(regs);
+
regs->regs[(opcode & RT) >> 16] = value;
- compute_return_epc(regs);
return;
sig:
static inline void simulate_sc(struct pt_regs *regs, unsigned int opcode)
{
- unsigned long *vaddr, reg;
+ unsigned long __user *vaddr;
+ unsigned long reg;
long offset;
int signal = 0;
offset <<= 16;
offset >>= 16;
- vaddr = (unsigned long *)((long)(regs->regs[(opcode & BASE) >> 21]) + offset);
+ vaddr = (unsigned long __user *)
+ ((unsigned long)(regs->regs[(opcode & BASE) >> 21]) + offset);
reg = (opcode & RT) >> 16;
if ((unsigned long)vaddr & 3) {
preempt_disable();
if (ll_bit == 0 || ll_task != current) {
+ compute_return_epc(regs);
regs->regs[reg] = 0;
preempt_enable();
- compute_return_epc(regs);
return;
}
goto sig;
}
+ compute_return_epc(regs);
regs->regs[reg] = 1;
- compute_return_epc(regs);
return;
sig:
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
}
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
info.si_errno = 0;
- info.si_addr = (void *)regs->cp0_epc;
+ info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
default:
{
switch (current_cpu_data.cputype) {
case CPU_24K:
- /* 24K cache parity not currently implemented in FPGA */
- printk(KERN_INFO "Disable cache parity protection for "
- "MIPS 24K CPU.\n");
- write_c0_ecc(read_c0_ecc() & ~0x80000000);
- break;
case CPU_5KC:
- /* Set the PE bit (bit 31) in the c0_ecc register. */
- printk(KERN_INFO "Enable cache parity protection for "
- "MIPS 5KC/24K CPUs.\n");
- write_c0_ecc(read_c0_ecc() | 0x80000000);
+ write_c0_ecc(0x80000000);
+ back_to_back_c0_hazard();
+ /* Set the PE bit (bit 31) in the c0_errctl register. */
+ printk(KERN_INFO "Cache parity protection %sabled\n",
+ (read_c0_ecc() & 0x80000000) ? "en" : "dis");
break;
case CPU_20KC:
case CPU_25KF: