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| author | Paul Mackerras <paulus@samba.org> | 2006-03-17 12:01:19 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-17 12:01:19 +1100 |
| commit | 23dd64011285010ac291f7dddf6e287bdb43a0ad (patch) | |
| tree | 0e4f4569d38d82f4dceb4150d5ad940e0fd5f24f /arch/ia64/kernel/ivt.S | |
| parent | 516450179454de9e689e0a53ed8f34b896e8651c (diff) | |
| parent | 485ff09990416c75ae9593ddc71619939ab9dd51 (diff) | |
| download | op-kernel-dev-23dd64011285010ac291f7dddf6e287bdb43a0ad.zip op-kernel-dev-23dd64011285010ac291f7dddf6e287bdb43a0ad.tar.gz | |
Merge ../linux-2.6
Diffstat (limited to 'arch/ia64/kernel/ivt.S')
| -rw-r--r-- | arch/ia64/kernel/ivt.S | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S index 9f80569..dcd906f 100644 --- a/arch/ia64/kernel/ivt.S +++ b/arch/ia64/kernel/ivt.S @@ -561,11 +561,12 @@ ENTRY(dirty_bit) ;; // avoid RAW on r18 mov ar.ccv=r18 // set compare value for cmpxchg or r25=_PAGE_D|_PAGE_A,r18 // set the dirty and accessed bits + tbit.z p7,p6 = r18,_PAGE_P_BIT // Check present bit ;; - cmpxchg8.acq r26=[r17],r25,ar.ccv +(p6) cmpxchg8.acq r26=[r17],r25,ar.ccv // Only update if page is present mov r24=PAGE_SHIFT<<2 ;; - cmp.eq p6,p7=r26,r18 +(p6) cmp.eq p6,p7=r26,r18 // Only compare if page is present ;; (p6) itc.d r25 // install updated PTE ;; @@ -626,11 +627,12 @@ ENTRY(iaccess_bit) ;; mov ar.ccv=r18 // set compare value for cmpxchg or r25=_PAGE_A,r18 // set the accessed bit + tbit.z p7,p6 = r18,_PAGE_P_BIT // Check present bit ;; - cmpxchg8.acq r26=[r17],r25,ar.ccv +(p6) cmpxchg8.acq r26=[r17],r25,ar.ccv // Only if page present mov r24=PAGE_SHIFT<<2 ;; - cmp.eq p6,p7=r26,r18 +(p6) cmp.eq p6,p7=r26,r18 // Only if page present ;; (p6) itc.i r25 // install updated PTE ;; @@ -680,11 +682,12 @@ ENTRY(daccess_bit) ;; // avoid RAW on r18 mov ar.ccv=r18 // set compare value for cmpxchg or r25=_PAGE_A,r18 // set the dirty bit + tbit.z p7,p6 = r18,_PAGE_P_BIT // Check present bit ;; - cmpxchg8.acq r26=[r17],r25,ar.ccv +(p6) cmpxchg8.acq r26=[r17],r25,ar.ccv // Only if page is present mov r24=PAGE_SHIFT<<2 ;; - cmp.eq p6,p7=r26,r18 +(p6) cmp.eq p6,p7=r26,r18 // Only if page is present ;; (p6) itc.d r25 // install updated PTE /* |
