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nexedi
linux
Commits
06365c08
Commit
06365c08
authored
Feb 18, 2003
by
Anton Blanchard
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ppc64: allow pSeries LPAR insert_pte to fail
parent
36f5a420
Changes
3
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3 changed files
with
10 additions
and
1 deletion
+10
-1
arch/ppc64/kernel/htab.c
arch/ppc64/kernel/htab.c
+3
-0
arch/ppc64/kernel/pSeries_lpar.c
arch/ppc64/kernel/pSeries_lpar.c
+6
-1
arch/ppc64/mm/init.c
arch/ppc64/mm/init.c
+1
-0
No files found.
arch/ppc64/kernel/htab.c
View file @
06365c08
...
...
@@ -349,6 +349,9 @@ int __hash_page(unsigned long ea, unsigned long access, unsigned long vsid,
}
}
if
(
unlikely
(
slot
==
-
2
))
panic
(
"hash_page: pte_insert failed
\n
"
);
pte_val
(
new_pte
)
|=
(
slot
<<
12
)
&
_PAGE_GROUP_IX
;
/*
...
...
arch/ppc64/kernel/pSeries_lpar.c
View file @
06365c08
...
...
@@ -460,8 +460,13 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
if
(
lpar_rc
==
H_PTEG_Full
)
return
-
1
;
/*
* Since we try and ioremap PHBs we dont own, the pte insert
* will fail. However we must catch the failure in hash_page
* or we will loop forever, so return -2 in this case.
*/
if
(
lpar_rc
!=
H_Success
)
panic
(
"Bad return code from pte enter rc = %lx
\n
"
,
lpar_rc
)
;
return
-
2
;
return
slot
;
}
...
...
arch/ppc64/mm/init.c
View file @
06365c08
...
...
@@ -233,6 +233,7 @@ static void map_io_page(unsigned long ea, unsigned long pa, int flags)
hpteg
=
((
hash
&
htab_data
.
htab_hash_mask
)
*
HPTES_PER_GROUP
);
/* Panic if a pte grpup is full */
if
(
ppc_md
.
hpte_insert
(
hpteg
,
va
,
pa
>>
PAGE_SHIFT
,
0
,
_PAGE_NO_CACHE
|
_PAGE_GUARDED
|
PP_RWXX
,
1
,
0
)
==
-
1
)
{
...
...
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