#include <linux/irq.h>
#include <linux/perf_event.h>
+#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <asm/branch.h>
#include <asm/break.h>
{
const int field = 2 * sizeof(unsigned long);
unsigned int cause = regs->cp0_cause;
+ unsigned int exccode;
int i;
show_regs_print_info(KERN_DEFAULT);
}
printk("\n");
- printk("Cause : %08x\n", cause);
+ exccode = (cause & CAUSEF_EXCCODE) >> CAUSEB_EXCCODE;
+ printk("Cause : %08x (ExcCode %02x)\n", cause, exccode);
- cause = (cause & CAUSEF_EXCCODE) >> CAUSEB_EXCCODE;
- if (1 <= cause && cause <= 5)
+ if (1 <= exccode && exccode <= 5)
printk("BadVA : %0*lx\n", field, regs->cp0_badvaddr);
printk("PrId : %08x (%s)\n", read_c0_prid(),
set_fs(old_fs);
}
-static int regs_to_trapnr(struct pt_regs *regs)
-{
- return (regs->cp0_cause >> 2) & 0x1f;
-}
-
static DEFINE_RAW_SPINLOCK(die_lock);
void __noreturn die(const char *str, struct pt_regs *regs)
oops_enter();
- if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_OOPS, str, regs, 0, current->thread.trap_nr,
SIGSEGV) == NOTIFY_STOP)
sig = 0;
printk(KERN_ALERT "%s bus error, epc == %0*lx, ra == %0*lx\n",
data ? "Data" : "Instruction",
field, regs->cp0_epc, field, regs->regs[31]);
- if (notify_die(DIE_OOPS, "bus error", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_OOPS, "bus error", regs, 0, current->thread.trap_nr,
SIGBUS) == NOTIFY_STOP)
goto out;
asmlinkage void do_ov(struct pt_regs *regs)
{
enum ctx_state prev_state;
- siginfo_t info;
+ siginfo_t info = {
+ .si_signo = SIGFPE,
+ .si_code = FPE_INTOVF,
+ .si_addr = (void __user *)regs->cp0_epc,
+ };
prev_state = exception_enter();
die_if_kernel("Integer overflow", regs);
- info.si_code = FPE_INTOVF;
- info.si_signo = SIGFPE;
- info.si_errno = 0;
- info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
exception_exit(prev_state);
}
int sig;
prev_state = exception_enter();
- if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_FP, "FP exception", regs, 0, current->thread.trap_nr,
SIGFPE) == NOTIFY_STOP)
goto out;
void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
const char *str)
{
- siginfo_t info;
+ siginfo_t info = { 0 };
char b[40];
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
- if (kgdb_ll_trap(DIE_TRAP, str, regs, code, regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ if (kgdb_ll_trap(DIE_TRAP, str, regs, code, current->thread.trap_nr,
+ SIGTRAP) == NOTIFY_STOP)
return;
#endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
- if (notify_die(DIE_TRAP, str, regs, code, regs_to_trapnr(regs),
+ if (notify_die(DIE_TRAP, str, regs, code, current->thread.trap_nr,
SIGTRAP) == NOTIFY_STOP)
return;
else
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
- info.si_errno = 0;
info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
set_fs(KERNEL_DS);
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (get_isa16_mode(regs->cp0_epc)) {
u16 instr[2];
* pertain to them.
*/
switch (bcode) {
+ case BRK_UPROBE:
+ if (notify_die(DIE_UPROBE, "uprobe", regs, bcode,
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
+ goto out;
+ else
+ break;
+ case BRK_UPROBE_XOL:
+ if (notify_die(DIE_UPROBE_XOL, "uprobe_xol", regs, bcode,
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
+ goto out;
+ else
+ break;
case BRK_KPROBE_BP:
if (notify_die(DIE_BREAK, "debug", regs, bcode,
- regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
goto out;
else
break;
case BRK_KPROBE_SSTEPBP:
if (notify_die(DIE_SSTEPBP, "single_step", regs, bcode,
- regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGTRAP) == NOTIFY_STOP)
goto out;
else
break;
set_fs(get_ds());
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (get_isa16_mode(regs->cp0_epc)) {
if (__get_user(instr[0], (u16 __user *)(epc + 0)) ||
__get_user(instr[1], (u16 __user *)(epc + 2)))
no_r2_instr:
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
- if (notify_die(DIE_RI, "RI Fault", regs, 0, regs_to_trapnr(regs),
+ if (notify_die(DIE_RI, "RI Fault", regs, 0, current->thread.trap_nr,
SIGILL) == NOTIFY_STOP)
goto out;
enum ctx_state prev_state;
prev_state = exception_enter();
+ current->thread.trap_nr = (regs->cp0_cause >> 2) & 0x1f;
if (notify_die(DIE_MSAFP, "MSA FP exception", regs, 0,
- regs_to_trapnr(regs), SIGFPE) == NOTIFY_STOP)
+ current->thread.trap_nr, SIGFPE) == NOTIFY_STOP)
goto out;
/* Clear MSACSR.Cause before enabling interrupts */
asmlinkage void do_mcheck(struct pt_regs *regs)
{
- const int field = 2 * sizeof(unsigned long);
int multi_match = regs->cp0_status & ST0_TS;
enum ctx_state prev_state;
mm_segment_t old_fs = get_fs();
show_regs(regs);
if (multi_match) {
- pr_err("Index : %0x\n", read_c0_index());
- pr_err("Pagemask: %0x\n", read_c0_pagemask());
- pr_err("EntryHi : %0*lx\n", field, read_c0_entryhi());
- pr_err("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
- pr_err("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
- pr_err("Wired : %0x\n", read_c0_wired());
- pr_err("Pagegrain: %0x\n", read_c0_pagegrain());
- if (cpu_has_htw) {
- pr_err("PWField : %0*lx\n", field, read_c0_pwfield());
- pr_err("PWSize : %0*lx\n", field, read_c0_pwsize());
- pr_err("PWCtl : %0x\n", read_c0_pwctl());
- }
- pr_err("\n");
+ dump_tlb_regs();
+ pr_info("\n");
dump_tlb_all();
}
case CPU_PROAPTIV:
case CPU_P5600:
case CPU_QEMU_GENERIC:
+ case CPU_I6400:
{
#define ERRCTL_PE 0x80000000
#define ERRCTL_L2P 0x00800000
{
char str[100];
+ nmi_enter();
raw_notifier_call_chain(&nmi_chain, 0, regs);
bust_spinlocks(1);
snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n",
smp_processor_id(), regs->cp0_epc);
regs->cp0_epc = read_c0_errorepc();
die(str, regs);
+ nmi_exit();
}
#define VECTORSPACING 0x100 /* for EI/VI mode */
BUG_ON(current->mm);
enter_lazy_tlb(&init_mm, current);
- /* Boot CPU's cache setup in setup_arch(). */
- if (!is_boot_cpu)
- cpu_cache_init();
- tlb_init();
+ /* Boot CPU's cache setup in setup_arch(). */
+ if (!is_boot_cpu)
+ cpu_cache_init();
+ tlb_init();
TLBMISS_HANDLER_SETUP();
}
check_wait();
-#if defined(CONFIG_KGDB)
- if (kgdb_early_setup)
- return; /* Already done */
-#endif
-
if (cpu_has_veic || cpu_has_vint) {
unsigned long size = 0x200 + VECTORSPACING*64;
ebase = (unsigned long)
__alloc_bootmem(size, 1 << fls(size), 0);
} else {
-#ifdef CONFIG_KVM_GUEST
-#define KVM_GUEST_KSEG0 0x40000000
- ebase = KVM_GUEST_KSEG0;
-#else
- ebase = CKSEG0;
-#endif
+ ebase = CAC_BASE;
+
if (cpu_has_mips_r2_r6)
ebase += (read_c0_ebase() & 0x3ffff000);
}
Code Review / kvmfornfv.git / blobdiff