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nexedi
linux
Commits
36946d73
Commit
36946d73
authored
Feb 27, 2010
by
Ralf Baechle
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MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock.
Signed-off-by:
Ralf Baechle
<
ralf@linux-mips.org
>
parent
89650870
Changes
1
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1 changed file
with
11 additions
and
11 deletions
+11
-11
arch/mips/sni/rm200.c
arch/mips/sni/rm200.c
+11
-11
No files found.
arch/mips/sni/rm200.c
View file @
36946d73
...
...
@@ -132,7 +132,7 @@ device_initcall(snirm_setup_devinit);
* readb/writeb to access them
*/
static
DEFINE_SPINLOCK
(
sni_rm200_i8259A_lock
);
static
DEFINE_
RAW_
SPINLOCK
(
sni_rm200_i8259A_lock
);
#define PIC_CMD 0x00
#define PIC_IMR 0x01
#define PIC_ISR PIC_CMD
...
...
@@ -161,13 +161,13 @@ static void sni_rm200_disable_8259A_irq(unsigned int irq)
irq
-=
RM200_I8259A_IRQ_BASE
;
mask
=
1
<<
irq
;
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
rm200_cached_irq_mask
|=
mask
;
if
(
irq
&
8
)
writeb
(
cached_slave_mask
,
rm200_pic_slave
+
PIC_IMR
);
else
writeb
(
cached_master_mask
,
rm200_pic_master
+
PIC_IMR
);
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
}
static
void
sni_rm200_enable_8259A_irq
(
unsigned
int
irq
)
...
...
@@ -177,13 +177,13 @@ static void sni_rm200_enable_8259A_irq(unsigned int irq)
irq
-=
RM200_I8259A_IRQ_BASE
;
mask
=
~
(
1
<<
irq
);
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
rm200_cached_irq_mask
&=
mask
;
if
(
irq
&
8
)
writeb
(
cached_slave_mask
,
rm200_pic_slave
+
PIC_IMR
);
else
writeb
(
cached_master_mask
,
rm200_pic_master
+
PIC_IMR
);
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
}
static
inline
int
sni_rm200_i8259A_irq_real
(
unsigned
int
irq
)
...
...
@@ -216,7 +216,7 @@ void sni_rm200_mask_and_ack_8259A(unsigned int irq)
irq
-=
RM200_I8259A_IRQ_BASE
;
irqmask
=
1
<<
irq
;
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
/*
* Lightweight spurious IRQ detection. We do not want
* to overdo spurious IRQ handling - it's usually a sign
...
...
@@ -247,7 +247,7 @@ void sni_rm200_mask_and_ack_8259A(unsigned int irq)
writeb
(
cached_master_mask
,
rm200_pic_master
+
PIC_IMR
);
writeb
(
0x60
+
irq
,
rm200_pic_master
+
PIC_CMD
);
}
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
return
;
spurious_8259A_irq:
...
...
@@ -298,7 +298,7 @@ static inline int sni_rm200_i8259_irq(void)
{
int
irq
;
spin_lock
(
&
sni_rm200_i8259A_lock
);
raw_
spin_lock
(
&
sni_rm200_i8259A_lock
);
/* Perform an interrupt acknowledge cycle on controller 1. */
writeb
(
0x0C
,
rm200_pic_master
+
PIC_CMD
);
/* prepare for poll */
...
...
@@ -325,7 +325,7 @@ static inline int sni_rm200_i8259_irq(void)
irq
=
-
1
;
}
spin_unlock
(
&
sni_rm200_i8259A_lock
);
raw_
spin_unlock
(
&
sni_rm200_i8259A_lock
);
return
likely
(
irq
>=
0
)
?
irq
+
RM200_I8259A_IRQ_BASE
:
irq
;
}
...
...
@@ -334,7 +334,7 @@ void sni_rm200_init_8259A(void)
{
unsigned
long
flags
;
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_lock_irqsave
(
&
sni_rm200_i8259A_lock
,
flags
);
writeb
(
0xff
,
rm200_pic_master
+
PIC_IMR
);
writeb
(
0xff
,
rm200_pic_slave
+
PIC_IMR
);
...
...
@@ -352,7 +352,7 @@ void sni_rm200_init_8259A(void)
writeb
(
cached_master_mask
,
rm200_pic_master
+
PIC_IMR
);
writeb
(
cached_slave_mask
,
rm200_pic_slave
+
PIC_IMR
);
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
raw_
spin_unlock_irqrestore
(
&
sni_rm200_i8259A_lock
,
flags
);
}
/*
...
...
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