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Kirill Smelkov
linux
Commits
458163b3
Commit
458163b3
authored
Jan 17, 2003
by
Paul Mackerras
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PPC32: Use a per-cpu variable for prof_counter and prof_multiplier.
parent
5f8a8bf5
Changes
1
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1 changed file
with
6 additions
and
4 deletions
+6
-4
arch/ppc/kernel/smp.c
arch/ppc/kernel/smp.c
+6
-4
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arch/ppc/kernel/smp.c
View file @
458163b3
...
...
@@ -44,8 +44,8 @@ struct cpuinfo_PPC cpu_data[NR_CPUS];
struct
klock_info_struct
klock_info
=
{
KLOCK_CLEAR
,
0
};
atomic_t
ipi_recv
;
atomic_t
ipi_sent
;
unsigned
int
prof_multiplier
[
NR_CPUS
]
=
{
[
1
...
NR_CPUS
-
1
]
=
1
}
;
unsigned
int
prof_counter
[
NR_CPUS
]
=
{
[
1
...
NR_CPUS
-
1
]
=
1
}
;
DEFINE_PER_CPU
(
unsigned
int
,
prof_multiplier
)
;
DEFINE_PER_CPU
(
unsigned
int
,
prof_counter
)
;
unsigned
long
cache_decay_ticks
=
HZ
/
100
;
unsigned
long
cpu_online_map
=
1UL
;
unsigned
long
cpu_possible_map
=
1UL
;
...
...
@@ -90,9 +90,9 @@ void smp_local_timer_interrupt(struct pt_regs * regs)
{
int
cpu
=
smp_processor_id
();
if
(
!--
p
rof_counter
[
cpu
]
)
{
if
(
!--
p
er_cpu
(
prof_counter
,
cpu
)
)
{
update_process_times
(
user_mode
(
regs
));
p
rof_counter
[
cpu
]
=
prof_multiplier
[
cpu
]
;
p
er_cpu
(
prof_counter
,
cpu
)
=
per_cpu
(
prof_multiplier
,
cpu
)
;
}
}
...
...
@@ -327,6 +327,8 @@ static void __devinit smp_store_cpu_info(int id)
/* assume bogomips are same for everything */
c
->
loops_per_jiffy
=
loops_per_jiffy
;
c
->
pvr
=
mfspr
(
PVR
);
per_cpu
(
prof_counter
,
id
)
=
1
;
per_cpu
(
prof_multiplier
,
id
)
=
1
;
}
void
__init
smp_prepare_cpus
(
unsigned
int
max_cpus
)
...
...
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