diff options
Diffstat (limited to 'arch/ia64/sn')
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/ptc_deadlock.S | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/ia64/sn/kernel/sn2/ptc_deadlock.S b/arch/ia64/sn/kernel/sn2/ptc_deadlock.S index 3fa95065a44..bebbcc4f8dd 100644 --- a/arch/ia64/sn/kernel/sn2/ptc_deadlock.S +++ b/arch/ia64/sn/kernel/sn2/ptc_deadlock.S @@ -39,9 +39,13 @@ sn2_ptc_deadlock_recovery_core: mov r8=r0 1: + cmp.ne p8,p9=r0,ptc1 // Test for shub type (ptc1 non-null on shub1) + // p8 = 1 if shub1, p9 = 1 if shub2 + add scr2=ALIAS_OFFSET,piowc // Address of WRITE_STATUS alias register - ;; - ld8.acq scr1=[scr2];; + mov scr1=7;; // Clear DEADLOCK, WRITE_ERROR, MULTI_WRITE_ERROR +(p8) st8.rel [scr2]=scr1;; +(p9) ld8.acq scr1=[scr2];; 5: ld8.acq scr1=[piowc];; // Wait for PIOs to complete. hint @pause |