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Diffstat (limited to 'arch/mn10300/kernel/traps.c')
-rw-r--r--arch/mn10300/kernel/traps.c42
1 files changed, 13 insertions, 29 deletions
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index 91365adba4f5..b90c3f160c77 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -45,9 +45,6 @@
#error "INTERRUPT_VECTOR_BASE not aligned to 16MiB boundary!"
#endif
-struct pt_regs *__frame; /* current frame pointer */
-EXPORT_SYMBOL(__frame);
-
int kstack_depth_to_print = 24;
spinlock_t die_lock = __SPIN_LOCK_UNLOCKED(die_lock);
@@ -101,7 +98,6 @@ DO_EINFO(SIGILL, {}, "invalid opcode", invalid_op, ILL_ILLOPC);
DO_EINFO(SIGILL, {}, "invalid ex opcode", invalid_exop, ILL_ILLOPC);
DO_EINFO(SIGBUS, {}, "invalid address", mem_error, BUS_ADRERR);
DO_EINFO(SIGBUS, {}, "bus error", bus_error, BUS_ADRERR);
-DO_EINFO(SIGILL, {}, "FPU invalid opcode", fpu_invalid_op, ILL_COPROC);
DO_ERROR(SIGTRAP,
#ifndef CONFIG_MN10300_USING_JTAG
@@ -222,11 +218,14 @@ void show_registers_only(struct pt_regs *regs)
printk(KERN_EMERG "threadinfo=%p task=%p)\n",
current_thread_info(), current);
- if ((unsigned long) current >= 0x90000000UL &&
- (unsigned long) current < 0x94000000UL)
+ if ((unsigned long) current >= PAGE_OFFSET &&
+ (unsigned long) current < (unsigned long)high_memory)
printk(KERN_EMERG "Process %s (pid: %d)\n",
current->comm, current->pid);
+#ifdef CONFIG_SMP
+ printk(KERN_EMERG "CPUID: %08x\n", CPUID);
+#endif
printk(KERN_EMERG "CPUP: %04hx\n", CPUP);
printk(KERN_EMERG "TBR: %08x\n", TBR);
printk(KERN_EMERG "DEAR: %08x\n", DEAR);
@@ -522,8 +521,12 @@ void __init set_intr_stub(enum exception_code code, void *handler)
{
unsigned long addr;
u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
+ unsigned long flags;
addr = (unsigned long) handler - (unsigned long) vector;
+
+ flags = arch_local_cli_save();
+
vector[0] = 0xdc; /* JMP handler */
vector[1] = addr;
vector[2] = addr >> 8;
@@ -533,30 +536,12 @@ void __init set_intr_stub(enum exception_code code, void *handler)
vector[6] = 0xcb;
vector[7] = 0xcb;
- mn10300_dcache_flush_inv();
- mn10300_icache_inv();
-}
-
-/*
- * set an interrupt stub to invoke the JTAG unit and then jump to a handler
- */
-void __init set_jtag_stub(enum exception_code code, void *handler)
-{
- unsigned long addr;
- u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
-
- addr = (unsigned long) handler - ((unsigned long) vector + 1);
- vector[0] = 0xff; /* PI to jump into JTAG debugger */
- vector[1] = 0xdc; /* jmp handler */
- vector[2] = addr;
- vector[3] = addr >> 8;
- vector[4] = addr >> 16;
- vector[5] = addr >> 24;
- vector[6] = 0xcb;
- vector[7] = 0xcb;
+ arch_local_irq_restore(flags);
+#ifndef CONFIG_MN10300_CACHE_SNOOP
mn10300_dcache_flush_inv();
- flush_icache_range((unsigned long) vector, (unsigned long) vector + 8);
+ mn10300_icache_inv();
+#endif
}
/*
@@ -581,7 +566,6 @@ void __init trap_init(void)
set_excp_vector(EXCEP_PRIVINSACC, insn_acc_error);
set_excp_vector(EXCEP_PRIVDATACC, data_acc_error);
set_excp_vector(EXCEP_DATINSACC, insn_acc_error);
- set_excp_vector(EXCEP_FPU_DISABLED, fpu_disabled);
set_excp_vector(EXCEP_FPU_UNIMPINS, fpu_invalid_op);
set_excp_vector(EXCEP_FPU_OPERATION, fpu_exception);