diff options
| author | Jason Wessel <jason.wessel@windriver.com> | 2008-07-29 15:58:53 -0500 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-07-30 21:54:42 +0100 |
| commit | 8854700115ecf8aa6f087aa915b7b6cf18090d39 (patch) | |
| tree | 3338d7aed80d715e0576783e0fecf30cc507a9a7 /arch/mips/kernel/irq.c | |
| parent | 8d60a903d986ffa26c41f0092320a3b9da20bfaf (diff) | |
[MIPS] kgdb: add arch support for the kernel's kgdb core
The new kgdb architecture specific handler registers and unregisters
dynamically for exceptions depending on when you configure a kgdb I/O
driver.
Aside from initializing the exceptions earlier in the boot process,
kgdb should have no impact on a device when it is compiled in so long
as an I/O module is not configured for use.
There have been quite a number of contributors during the existence of
this patch (see arch/mips/kernel/kgdb.c). Most recently Jason
re-wrote the mips kgdb logic to use the die notification handlers.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/irq.c')
| -rw-r--r-- | arch/mips/kernel/irq.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c index 8acba0880d9..4b4007b3083 100644 --- a/arch/mips/kernel/irq.c +++ b/arch/mips/kernel/irq.c @@ -21,11 +21,16 @@ #include <linux/sched.h> #include <linux/seq_file.h> #include <linux/kallsyms.h> +#include <linux/kgdb.h> #include <asm/atomic.h> #include <asm/system.h> #include <asm/uaccess.h> +#ifdef CONFIG_KGDB +int kgdb_early_setup; +#endif + static unsigned long irq_map[NR_IRQS / BITS_PER_LONG]; int allocate_irqno(void) @@ -130,8 +135,18 @@ void __init init_IRQ(void) { int i; +#ifdef CONFIG_KGDB + if (kgdb_early_setup) + return; +#endif + for (i = 0; i < NR_IRQS; i++) set_irq_noprobe(i); arch_init_irq(); + +#ifdef CONFIG_KGDB + if (!kgdb_early_setup) + kgdb_early_setup = 1; +#endif } |