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#ifndef __ASM_SH_IRQ_H
#define __ASM_SH_IRQ_H
#include <asm/machvec.h>
#include <asm/ptrace.h> /* for pt_regs */
/* NR_IRQS is made from three components:
* 1. ONCHIP_NR_IRQS - number of IRLS + on-chip peripherial modules
* 2. PINT_NR_IRQS - number of PINT interrupts
* 3. OFFCHIP_NR_IRQS - numbe of IRQs from off-chip peripherial modules
*/
/* 1. ONCHIP_NR_IRQS */
#if defined(CONFIG_CPU_SUBTYPE_SH7604)
# define ONCHIP_NR_IRQS 24 // Actually 21
#elif defined(CONFIG_CPU_SUBTYPE_SH7707)
# define ONCHIP_NR_IRQS 64
# define PINT_NR_IRQS 16
#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
# define ONCHIP_NR_IRQS 32
#elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \
defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7705)
# define ONCHIP_NR_IRQS 64 // Actually 61
# define PINT_NR_IRQS 16
#elif defined(CONFIG_CPU_SUBTYPE_SH7710)
# define ONCHIP_NR_IRQS 104
#elif defined(CONFIG_CPU_SUBTYPE_SH7750)
# define ONCHIP_NR_IRQS 48 // Actually 44
#elif defined(CONFIG_CPU_SUBTYPE_SH7751)
# define ONCHIP_NR_IRQS 72
#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
# define ONCHIP_NR_IRQS 112 /* XXX */
#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define ONCHIP_NR_IRQS 72
#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
# define ONCHIP_NR_IRQS 144
#elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \
defined(CONFIG_CPU_SUBTYPE_SH73180) || \
defined(CONFIG_CPU_SUBTYPE_SH7343) || \
defined(CONFIG_CPU_SUBTYPE_SH7722)
# define ONCHIP_NR_IRQS 109
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
# define ONCHIP_NR_IRQS 111
#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
# define ONCHIP_NR_IRQS 256
#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
# define ONCHIP_NR_IRQS 128
#elif defined(CONFIG_SH_UNKNOWN) /* Most be last */
# define ONCHIP_NR_IRQS 144
#endif
/* 2. PINT_NR_IRQS */
#ifdef CONFIG_SH_UNKNOWN
# define PINT_NR_IRQS 16
#else
# ifndef PINT_NR_IRQS
# define PINT_NR_IRQS 0
# endif
#endif
#if PINT_NR_IRQS > 0
# define PINT_IRQ_BASE ONCHIP_NR_IRQS
#endif
/* 3. OFFCHIP_NR_IRQS */
#if defined(CONFIG_HD64461)
# define OFFCHIP_NR_IRQS 18
#elif defined(CONFIG_HD64465)
# define OFFCHIP_NR_IRQS 16
#elif defined (CONFIG_SH_DREAMCAST)
# define OFFCHIP_NR_IRQS 96
#elif defined (CONFIG_SH_TITAN)
# define OFFCHIP_NR_IRQS 4
#elif defined(CONFIG_SH_R7780RP)
# define OFFCHIP_NR_IRQS 16
#elif defined(CONFIG_SH_7343_SOLUTION_ENGINE)
# define OFFCHIP_NR_IRQS 12
#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE)
# define OFFCHIP_NR_IRQS 14
#elif defined(CONFIG_SH_UNKNOWN)
# define OFFCHIP_NR_IRQS 16 /* Must also be last */
#else
# define OFFCHIP_NR_IRQS 0
#endif
#if OFFCHIP_NR_IRQS > 0
# define OFFCHIP_IRQ_BASE (ONCHIP_NR_IRQS + PINT_NR_IRQS)
#endif
/* NR_IRQS. 1+2+3 */
#define NR_IRQS (ONCHIP_NR_IRQS + PINT_NR_IRQS + OFFCHIP_NR_IRQS)
/*
* Convert back and forth between INTEVT and IRQ values.
*/
#ifdef CONFIG_CPU_HAS_INTEVT
#define evt2irq(evt) (((evt) >> 5) - 16)
#define irq2evt(irq) (((irq) + 16) << 5)
#else
#define evt2irq(evt) (evt)
#define irq2evt(irq) (irq)
#endif
/*
* Simple Mask Register Support
*/
extern void make_maskreg_irq(unsigned int irq);
extern unsigned short *irq_mask_register;
/*
* PINT IRQs
*/
void init_IRQ_pint(void);
/*
* The shift value is now the number of bits to shift, not the number of
* bits/4. This is to make it easier to read the value directly from the
* datasheets. The IPR address, addr, will be set from ipr_idx via the
* map_ipridx_to_addr function.
*/
struct ipr_data {
unsigned int irq;
int ipr_idx; /* Index for the IPR registered */
int shift; /* Number of bits to shift the data */
int priority; /* The priority */
unsigned int addr; /* Address of Interrupt Priority Register */
};
/*
* Given an IPR IDX, map the value to an IPR register address.
*/
unsigned int map_ipridx_to_addr(int idx);
/*
* Enable individual interrupt mode for external IPR IRQs.
*/
void ipr_irq_enable_irlm(void);
/*
* Function for "on chip support modules".
*/
void make_ipr_irq(struct ipr_data *table, unsigned int nr_irqs);
void make_imask_irq(unsigned int irq);
void init_IRQ_ipr(void);
struct intc2_data {
unsigned short irq;
unsigned char ipr_offset, ipr_shift;
unsigned char msk_offset, msk_shift;
unsigned char priority;
};
void make_intc2_irq(struct intc2_data *, unsigned int nr_irqs);
void init_IRQ_intc2(void);
static inline int generic_irq_demux(int irq)
{
return irq;
}
#define irq_canonicalize(irq) (irq)
#define irq_demux(irq) sh_mv.mv_irq_demux(irq)
#ifdef CONFIG_4KSTACKS
extern void irq_ctx_init(int cpu);
extern void irq_ctx_exit(int cpu);
# define __ARCH_HAS_DO_SOFTIRQ
#else
# define irq_ctx_init(cpu) do { } while (0)
# define irq_ctx_exit(cpu) do { } while (0)
#endif
#endif /* __ASM_SH_IRQ_H */
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