[IA64] MCA/INIT: add an extra thread_info flag
Add an extra thread_info flag to indicate the special MCA/INIT stacks.
Mainly for debuggers.
Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h
index c8766de..fc54492 100644
--- a/include/asm-ia64/ptrace.h
+++ b/include/asm-ia64/ptrace.h
@@ -119,7 +119,7 @@
unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
unsigned long ar_pfs; /* prev function state */
unsigned long ar_rsc; /* RSE configuration */
- /* The following two are valid only if cr_ipsr.cpl > 0: */
+ /* The following two are valid only if cr_ipsr.cpl > 0 || ti->flags & _TIF_MCA_INIT */
unsigned long ar_rnat; /* RSE NaT */
unsigned long ar_bspstore; /* RSE bspstore */
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
index b2c79f0..cf4a950 100644
--- a/include/asm-ia64/thread_info.h
+++ b/include/asm-ia64/thread_info.h
@@ -76,6 +76,7 @@
#define TIF_SIGDELAYED 5 /* signal delayed from MCA/INIT/NMI/PMI context */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
+#define TIF_MCA_INIT 18 /* this task is processing MCA or INIT */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
@@ -85,6 +86,7 @@
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SIGDELAYED (1 << TIF_SIGDELAYED)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
+#define _TIF_MCA_INIT (1 << TIF_MCA_INIT)
/* "work to do on user-return" bits */
#define TIF_ALLWORK_MASK (_TIF_NOTIFY_RESUME|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SIGDELAYED)