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authorTony Luck <tony.luck@intel.com>2008-04-17 10:14:51 -0700
committerTony Luck <tony.luck@intel.com>2008-04-17 10:14:51 -0700
commit71b264f85ff50c14fe945ffff06ae0d5e9a9124e (patch)
tree9fd79c63fd630c4d030a97d254d42a3a73f1328b /arch/ia64/kernel/fsys.S
parentf4df39cbdd9e9ab615e80148cc271db22a8508ad (diff)
parent072f042df335d7e0da2027637bcf720d7ff1589b (diff)
Pull miscellaneous into release branch
Conflicts: arch/ia64/kernel/mca.c
Diffstat (limited to 'arch/ia64/kernel/fsys.S')
-rw-r--r--arch/ia64/kernel/fsys.S34
1 files changed, 30 insertions, 4 deletions
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 357b7e2adc6..c1625c7e177 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -61,13 +61,29 @@ ENTRY(fsys_getpid)
.prologue
.altrp b6
.body
+ add r17=IA64_TASK_GROUP_LEADER_OFFSET,r16
+ ;;
+ ld8 r17=[r17] // r17 = current->group_leader
add r9=TI_FLAGS+IA64_TASK_SIZE,r16
;;
ld4 r9=[r9]
- add r8=IA64_TASK_TGID_OFFSET,r16
+ add r17=IA64_TASK_TGIDLINK_OFFSET,r17
;;
and r9=TIF_ALLWORK_MASK,r9
- ld4 r8=[r8] // r8 = current->tgid
+ ld8 r17=[r17] // r17 = current->group_leader->pids[PIDTYPE_PID].pid
+ ;;
+ add r8=IA64_PID_LEVEL_OFFSET,r17
+ ;;
+ ld4 r8=[r8] // r8 = pid->level
+ add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
+ ;;
+ shl r8=r8,IA64_UPID_SHIFT
+ ;;
+ add r17=r17,r8 // r17 = &pid->numbers[pid->level]
+ ;;
+ ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
+ ;;
+ mov r17=0
;;
cmp.ne p8,p0=0,r9
(p8) br.spnt.many fsys_fallback_syscall
@@ -126,15 +142,25 @@ ENTRY(fsys_set_tid_address)
.altrp b6
.body
add r9=TI_FLAGS+IA64_TASK_SIZE,r16
+ add r17=IA64_TASK_TGIDLINK_OFFSET,r16
;;
ld4 r9=[r9]
tnat.z p6,p7=r32 // check argument register for being NaT
+ ld8 r17=[r17] // r17 = current->pids[PIDTYPE_PID].pid
;;
and r9=TIF_ALLWORK_MASK,r9
- add r8=IA64_TASK_PID_OFFSET,r16
+ add r8=IA64_PID_LEVEL_OFFSET,r17
add r18=IA64_TASK_CLEAR_CHILD_TID_OFFSET,r16
;;
- ld4 r8=[r8]
+ ld4 r8=[r8] // r8 = pid->level
+ add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
+ ;;
+ shl r8=r8,IA64_UPID_SHIFT
+ ;;
+ add r17=r17,r8 // r17 = &pid->numbers[pid->level]
+ ;;
+ ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
+ ;;
cmp.ne p8,p0=0,r9
mov r17=-1
;;