aboutsummaryrefslogtreecommitdiff
path: root/arch/ppc/kernel/traps.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/kernel/traps.c')
-rw-r--r--arch/ppc/kernel/traps.c42
1 files changed, 29 insertions, 13 deletions
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 961ede87be7..f265b81e700 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -41,9 +41,14 @@
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/backlight.h>
#endif
-#include <asm/perfmon.h>
+#include <asm/pmc.h>
#ifdef CONFIG_XMON
+extern int xmon_bpt(struct pt_regs *regs);
+extern int xmon_sstep(struct pt_regs *regs);
+extern int xmon_iabr_match(struct pt_regs *regs);
+extern int xmon_dabr_match(struct pt_regs *regs);
+
void (*debugger)(struct pt_regs *regs) = xmon;
int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
@@ -74,7 +79,7 @@ void (*debugger_fault_handler)(struct pt_regs *regs);
DEFINE_SPINLOCK(die_lock);
-void die(const char * str, struct pt_regs * fp, long err)
+int die(const char * str, struct pt_regs * fp, long err)
{
static int die_counter;
int nl = 0;
@@ -232,7 +237,7 @@ platform_machine_check(struct pt_regs *regs)
{
}
-void MachineCheckException(struct pt_regs *regs)
+void machine_check_exception(struct pt_regs *regs)
{
unsigned long reason = get_mc_reason(regs);
@@ -393,14 +398,14 @@ void SMIException(struct pt_regs *regs)
#endif
}
-void UnknownException(struct pt_regs *regs)
+void unknown_exception(struct pt_regs *regs)
{
printk("Bad trap at PC: %lx, MSR: %lx, vector=%lx %s\n",
regs->nip, regs->msr, regs->trap, print_tainted());
_exception(SIGTRAP, regs, 0, 0);
}
-void InstructionBreakpoint(struct pt_regs *regs)
+void instruction_breakpoint_exception(struct pt_regs *regs)
{
if (debugger_iabr_match(regs))
return;
@@ -575,7 +580,7 @@ extern struct bug_entry __start___bug_table[], __stop___bug_table[];
#define module_find_bug(x) NULL
#endif
-static struct bug_entry *find_bug(unsigned long bugaddr)
+struct bug_entry *find_bug(unsigned long bugaddr)
{
struct bug_entry *bug;
@@ -622,7 +627,7 @@ int check_bug_trap(struct pt_regs *regs)
return 0;
}
-void ProgramCheckException(struct pt_regs *regs)
+void program_check_exception(struct pt_regs *regs)
{
unsigned int reason = get_reason(regs);
extern int do_mathemu(struct pt_regs *regs);
@@ -654,7 +659,7 @@ void ProgramCheckException(struct pt_regs *regs)
giveup_fpu(current);
preempt_enable();
- fpscr = current->thread.fpscr;
+ fpscr = current->thread.fpscr.val;
fpscr &= fpscr << 22; /* mask summary bits with enables */
if (fpscr & FPSCR_VX)
code = FPE_FLTINV;
@@ -701,7 +706,7 @@ void ProgramCheckException(struct pt_regs *regs)
_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
}
-void SingleStepException(struct pt_regs *regs)
+void single_step_exception(struct pt_regs *regs)
{
regs->msr &= ~(MSR_SE | MSR_BE); /* Turn off 'trace' bits */
if (debugger_sstep(regs))
@@ -709,7 +714,7 @@ void SingleStepException(struct pt_regs *regs)
_exception(SIGTRAP, regs, TRAP_TRACE, 0);
}
-void AlignmentException(struct pt_regs *regs)
+void alignment_exception(struct pt_regs *regs)
{
int fixed;
@@ -814,7 +819,18 @@ void TAUException(struct pt_regs *regs)
}
#endif /* CONFIG_INT_TAU */
-void AltivecUnavailException(struct pt_regs *regs)
+/*
+ * FP unavailable trap from kernel - print a message, but let
+ * the task use FP in the kernel until it returns to user mode.
+ */
+void kernel_fp_unavailable_exception(struct pt_regs *regs)
+{
+ regs->msr |= MSR_FP;
+ printk(KERN_ERR "floating point used in kernel (task=%p, pc=%lx)\n",
+ current, regs->nip);
+}
+
+void altivec_unavailable_exception(struct pt_regs *regs)
{
static int kernel_altivec_count;
@@ -835,7 +851,7 @@ void AltivecUnavailException(struct pt_regs *regs)
}
#ifdef CONFIG_ALTIVEC
-void AltivecAssistException(struct pt_regs *regs)
+void altivec_assist_exception(struct pt_regs *regs)
{
int err;
@@ -872,7 +888,7 @@ void AltivecAssistException(struct pt_regs *regs)
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_E500
-void PerformanceMonitorException(struct pt_regs *regs)
+void performance_monitor_exception(struct pt_regs *regs)
{
perf_irq(regs);
}