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sh: intc - initial SMP support.

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This implements initial support for the SMP INTC (particularly
INTC2) controllers.

These are largely implemented as conventional blocks, with
register sets grouped together at fixed strides relative to
the CPU id.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2007-09-21 18:16:42 +09:00 • committed by Paul Mundt
commit f18d533e3c
2 changed files with 69 additions and 21 deletions
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12
include/asm-sh/hw_irq.h
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@ -50,11 +50,17 @@ struct intc_group {
struct intc_mask_reg {
unsigned long set_reg, clr_reg, reg_width;
intc_enum enum_ids[32];
#ifdef CONFIG_SMP
unsigned long smp;
#endif
};
struct intc_prio_reg {
unsigned long set_reg, clr_reg, reg_width, field_width;
intc_enum enum_ids[16];
#ifdef CONFIG_SMP
unsigned long smp;
#endif
};
struct intc_sense_reg {
@ -62,6 +68,12 @@ struct intc_sense_reg {
intc_enum enum_ids[16];
};
#ifdef CONFIG_SMP
#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
#else
#define INTC_SMP(stride, nr)
#endif
struct intc_desc {
struct intc_vect *vectors;
unsigned int nr_vectors;