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sh: intc: Make ack_regs generally available. 

Currently this is ifdef'ed under SH-3 and SH-4A, but there are other CPUs
that will need this as well. Given the size of the existing data
structures, this doesn't cause any additional cacheline utilization for
the existing users, so has no direct impact on the data structures.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-10-27 11:36:43 +09:00
parent 0a993b0a29
commit 9b798d50df
2 changed files with 1 additions and 17 deletions
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14
drivers/sh/intc.c
View File

@ -70,9 +70,7 @@ static LIST_HEAD(intc_list);
#endif
static unsigned int intc_prio_level[NR_IRQS]; /* for now */
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
static unsigned long ack_handle[NR_IRQS];
#endif
static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
{
@ -250,7 +248,6 @@ static int intc_set_wake(unsigned int irq, unsigned int on)
return 0; /* allow wakeup, but setup hardware in intc_suspend() */
}
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
static void intc_mask_ack(unsigned int irq)
{
struct intc_desc_int *d = get_intc_desc(irq);
@ -282,7 +279,6 @@ static void intc_mask_ack(unsigned int irq)
}
}
}
#endif
static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp,
unsigned int nr_hp,
@ -501,7 +497,6 @@ static unsigned int __init intc_prio_data(struct intc_desc *desc,
return 0;
}
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
static unsigned int __init intc_ack_data(struct intc_desc *desc,
struct intc_desc_int *d,
intc_enum enum_id)
@ -533,7 +528,6 @@ static unsigned int __init intc_ack_data(struct intc_desc *desc,
return 0;
}
#endif
static unsigned int __init intc_sense_data(struct intc_desc *desc,
struct intc_desc_int *d,
@ -641,10 +635,8 @@ static void __init intc_register_irq(struct intc_desc *desc,
/* irq should be disabled by default */
d->chip.mask(irq);
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
if (desc->ack_regs)
ack_handle[irq] = intc_ack_data(desc, d, enum_id);
#endif
}
static unsigned int __init save_reg(struct intc_desc_int *d,
@ -681,10 +673,8 @@ void __init register_intc_controller(struct intc_desc *desc)
d->nr_reg = desc->mask_regs ? desc->nr_mask_regs * 2 : 0;
d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0;
d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0;
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0;
#endif
d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT);
#ifdef CONFIG_SMP
d->smp = kzalloc(d->nr_reg * sizeof(*d->smp), GFP_NOWAIT);
@ -727,14 +717,12 @@ void __init register_intc_controller(struct intc_desc *desc)
d->chip.set_type = intc_set_sense;
d->chip.set_wake = intc_set_wake;
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
if (desc->ack_regs) {
for (i = 0; i < desc->nr_ack_regs; i++)
k += save_reg(d, k, desc->ack_regs[i].set_reg, 0);
d->chip.mask_ack = intc_mask_ack;
}
#endif
BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */

4
include/linux/sh_intc.h
View File

@ -57,10 +57,8 @@ struct intc_desc {
struct intc_sense_reg *sense_regs;
unsigned int nr_sense_regs;
char *name;
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
struct intc_mask_reg *ack_regs;
unsigned int nr_ack_regs;
#endif
};
#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
@ -73,7 +71,6 @@ struct intc_desc symbol __initdata = { \
chipname, \
}
#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
mask_regs, prio_regs, sense_regs, ack_regs) \
struct intc_desc symbol __initdata = { \
@ -83,7 +80,6 @@ struct intc_desc symbol __initdata = { \
chipname, \
_INTC_ARRAY(ack_regs), \
}
#endif
void __init register_intc_controller(struct intc_desc *desc);
int intc_set_priority(unsigned int irq, unsigned int prio);