Author: marcel
Date: Mon Jul 2 21:21:12 2012
New Revision: 238033
URL: http://svn.freebsd.org/changeset/base/238033
Log:
Fix a typo that resulted in or-ing PTE_UW twice whrn PTE_SW was needed.
Note that setting the PTE_MODIFIED bit based on whether write is possible
is incorrect. We should set PTE_MODIFIED based on whether the access
is a write operation.
Modified:
head/sys/powerpc/booke/trap_subr.S
Modified: head/sys/powerpc/booke/trap_subr.S
==============================================================================
--- head/sys/powerpc/booke/trap_subr.S Mon Jul 2 21:18:09 2012
(r238032)
+++ head/sys/powerpc/booke/trap_subr.S Mon Jul 2 21:21:12 2012
(r238033)
@@ -668,7 +668,7 @@ tlb_fill_entry:
lwarx %r21, %r23, %r25 /* get pte->flags */
oris %r21, %r21, PTE_REFERENCED@h /* set referenced bit */
- andi. %r22, %r21, (PTE_UW | PTE_UW)@l /* check if writable */
+ andi. %r22, %r21, (PTE_SW | PTE_UW)@l /* check if writable */
beq 2f
oris %r21, %r21, PTE_MODIFIED@h /* set modified bit */
2:
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