diff options
| author | Kevin Cernekee <cernekee@gmail.com> | 2011-11-16 01:25:45 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-12-07 22:03:18 +0000 |
| commit | 6fb97effee5374ac5b2a0e8666d380e83b5ca1e3 (patch) | |
| tree | 5a97ac150b3c37580628ab8391f5a8754ad6cc1c /arch/mips | |
| parent | 34bd92e27becdc2c8b50d200a329da5e9b8174d9 (diff) | |
MIPS: Add board_ebase_setup()
Some systems need to relocate the MIPS exception vector base during
trap initialization. Add a hook to make this possible.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2959/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/traps.h | 1 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h index 4edab87eebd..ff74aec3561 100644 --- a/arch/mips/include/asm/traps.h +++ b/arch/mips/include/asm/traps.h @@ -24,6 +24,7 @@ extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup); extern void (*board_nmi_handler_setup)(void); extern void (*board_ejtag_handler_setup)(void); extern void (*board_bind_eic_interrupt)(int irq, int regset); +extern void (*board_ebase_setup)(void); extern int register_nmi_notifier(struct notifier_block *nb); diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 33945aaa9b1..c18dfd4428f 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -91,6 +91,7 @@ int (*board_be_handler)(struct pt_regs *regs, int is_fixup); void (*board_nmi_handler_setup)(void); void (*board_ejtag_handler_setup)(void); void (*board_bind_eic_interrupt)(int irq, int regset); +void (*board_ebase_setup)(void); static void show_raw_backtrace(unsigned long reg29) @@ -1691,6 +1692,8 @@ void __init trap_init(void) ebase += (read_c0_ebase() & 0x3ffff000); } + if (board_ebase_setup) + board_ebase_setup(); per_cpu_trap_init(); /* |