diff options
Diffstat (limited to 'arch/blackfin/mach-common')
| -rw-r--r-- | arch/blackfin/mach-common/interrupt.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S index 0a0c088ead8c..cee62cf4acd4 100644 --- a/arch/blackfin/mach-common/interrupt.S +++ b/arch/blackfin/mach-common/interrupt.S @@ -194,12 +194,28 @@ ENTRY(_evt_ivhw) ENDPROC(_evt_ivhw) /* Interrupt routine for evt2 (NMI). - * We don't actually use this, so just return. * For inner circle type details, please see: * http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:nmi */ ENTRY(_evt_nmi) +#ifndef CONFIG_NMI_WATCHDOG .weak _evt_nmi +#else + /* Not take account of CPLBs, this handler will not return */ + SAVE_ALL_SYS + r0 = sp; + r1 = retn; + [sp + PT_PC] = r1; + trace_buffer_save(p4,r5); + + ANOMALY_283_315_WORKAROUND(p4, r5) + + SP += -12; + call _do_nmi; + SP += 12; +1: + jump 1b; +#endif rtn; ENDPROC(_evt_nmi) |