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authorOlof Johansson <olof@lixom.net>2007-04-24 01:11:55 +1000
committerPaul Mackerras <paulus@samba.org>2007-04-24 22:06:59 +1000
commit687304014f7ca8e2fbb3feaefef356b4a0da65ad (patch)
tree2212a33688e74d8c8bef0affe67cabbf5a14e03c /include/asm-powerpc
parent6cfef5b27e49e826125f12637ee0d7210a896044 (diff)
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[POWERPC] Save trap number in bad_stack
Save the trap number in the case of getting a bad stack in an exception handler. It is sometimes useful to know what exception it was that caused this to happen. Without this, no trap number is reported. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/paca.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h
index 4de851d91f96..cf95274f735e 100644
--- a/include/asm-powerpc/paca.h
+++ b/include/asm-powerpc/paca.h
@@ -94,6 +94,7 @@ struct paca_struct {
u64 stab_rr; /* stab/slb round-robin counter */
u64 saved_r1; /* r1 save for RTAS calls */
u64 saved_msr; /* MSR saved here by enter_rtas */
+ u16 trap_save; /* Used when bad stack is encountered */
u8 soft_enabled; /* irq soft-enable flag */
u8 hard_enabled; /* set if irqs are enabled in MSR */
u8 io_sync; /* writel() needs spin_unlock sync */