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Kirill Smelkov
linux
Commits
40b552d9
Commit
40b552d9
authored
10 years ago
by
Vineet Gupta
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ARC: compress cpuinfo_arc_mmu (mainly save page size in KB)
Signed-off-by:
Vineet Gupta
<
vgupta@synopsys.com
>
parent
5b9bd178
Changes
2
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2 changed files
with
6 additions
and
5 deletions
+6
-5
arch/arc/include/asm/arcregs.h
arch/arc/include/asm/arcregs.h
+2
-1
arch/arc/mm/tlb.c
arch/arc/mm/tlb.c
+4
-4
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arch/arc/include/asm/arcregs.h
View file @
40b552d9
...
...
@@ -299,7 +299,8 @@ struct bcr_generic {
*/
struct
cpuinfo_arc_mmu
{
unsigned
int
ver
,
pg_sz
,
sets
,
ways
,
u_dtlb
,
u_itlb
,
num_tlb
;
unsigned
int
ver
:
4
,
pg_sz_k
:
8
,
pad
:
8
,
u_dtlb
:
6
,
u_itlb
:
6
;
unsigned
int
num_tlb
:
16
,
sets
:
12
,
ways
:
4
;
};
struct
cpuinfo_arc_cache
{
...
...
This diff is collapsed.
Click to expand it.
arch/arc/mm/tlb.c
View file @
40b552d9
...
...
@@ -587,14 +587,14 @@ void read_decode_mmu_bcr(void)
if
(
mmu
->
ver
<=
2
)
{
mmu2
=
(
struct
bcr_mmu_1_2
*
)
&
tmp
;
mmu
->
pg_sz
=
PAGE_SIZE
;
mmu
->
pg_sz
_k
=
TO_KB
(
PAGE_SIZE
)
;
mmu
->
sets
=
1
<<
mmu2
->
sets
;
mmu
->
ways
=
1
<<
mmu2
->
ways
;
mmu
->
u_dtlb
=
mmu2
->
u_dtlb
;
mmu
->
u_itlb
=
mmu2
->
u_itlb
;
}
else
{
mmu3
=
(
struct
bcr_mmu_3
*
)
&
tmp
;
mmu
->
pg_sz
=
512
<<
mmu3
->
pg_sz
;
mmu
->
pg_sz
_k
=
1
<<
(
mmu3
->
pg_sz
-
1
)
;
mmu
->
sets
=
1
<<
mmu3
->
sets
;
mmu
->
ways
=
1
<<
mmu3
->
ways
;
mmu
->
u_dtlb
=
mmu3
->
u_dtlb
;
...
...
@@ -611,7 +611,7 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
n
+=
scnprintf
(
buf
+
n
,
len
-
n
,
"MMU [v%x]
\t
: %dk PAGE, JTLB %d (%dx%d), uDTLB %d, uITLB %d %s
\n
"
,
p_mmu
->
ver
,
TO_KB
(
p_mmu
->
pg_sz
)
,
p_mmu
->
ver
,
p_mmu
->
pg_sz
_k
,
p_mmu
->
num_tlb
,
p_mmu
->
sets
,
p_mmu
->
ways
,
p_mmu
->
u_dtlb
,
p_mmu
->
u_itlb
,
IS_ENABLED
(
CONFIG_ARC_MMU_SASID
)
?
",SASID"
:
""
);
...
...
@@ -639,7 +639,7 @@ void arc_mmu_init(void)
mmu
->
ver
,
CONFIG_ARC_MMU_VER
);
}
if
(
mmu
->
pg_sz
!=
PAGE_SIZE
)
if
(
mmu
->
pg_sz
_k
!=
TO_KB
(
PAGE_SIZE
)
)
panic
(
"MMU pg size != PAGE_SIZE (%luk)
\n
"
,
TO_KB
(
PAGE_SIZE
));
/* Enable the MMU */
...
...
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