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#include <linux/platform_device.h>
#include <asm/btfixup.h>
#include <asm/cpu_type.h>
struct irq_bucket {
struct irq_bucket *next;
unsigned int real_irq;
unsigned int irq;
unsigned int pil;
};
#define SUN4D_MAX_BOARD 10
#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
/* Map between the irq identifier used in hw to the
* irq_bucket. The map is sufficient large to hold
* the sun4d hw identifiers.
*/
extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
/* sun4m specific type definitions */
/* This maps direct to CPU specific interrupt registers */
struct sun4m_irq_percpu {
u32 pending;
u32 clear;
u32 set;
};
/* This maps direct to global interrupt registers */
struct sun4m_irq_global {
u32 pending;
u32 mask;
u32 mask_clear;
u32 mask_set;
u32 interrupt_target;
};
extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
extern struct sun4m_irq_global __iomem *sun4m_irq_global;
/* The following definitions describe the individual platform features: */
#define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */
#define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */
#define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */
/*
* Platform specific configuration
* The individual platforms assign their platform
* specifics in their init functions.
*/
struct sparc_config {
void (*init_timers)(void);
unsigned int (*build_device_irq)(struct platform_device *op,
unsigned int real_irq);
/* generic clockevent features - see FEAT_* above */
int features;
/* clock rate used for clock event timer */
int clock_rate;
/* one period for clock source timer */
unsigned int cs_period;
/* function to obtain offsett for cs period */
unsigned int (*get_cycles_offset)(void);
};
extern struct sparc_config sparc_config;
unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
void irq_link(unsigned int irq);
void irq_unlink(unsigned int irq);
void handler_irq(unsigned int pil, struct pt_regs *regs);
/* Dave Redman (djhr@tadpole.co.uk)
* changed these to function pointers.. it saves cycles and will allow
* the irq dependencies to be split into different files at a later date
* sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size.
* Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Changed these to btfixup entities... It saves cycles :)
*/
BTFIXUPDEF_CALL(void, clear_clock_irq, void)
BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
static inline void clear_clock_irq(void)
{
BTFIXUP_CALL(clear_clock_irq)();
}
static inline void load_profile_irq(int cpu, int limit)
{
BTFIXUP_CALL(load_profile_irq)(cpu, limit);
}
#ifdef CONFIG_SMP
BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
BTFIXUPDEF_CALL(void, set_irq_udt, int)
#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
#define SUN4D_IPI_IRQ 13
extern void sun4d_ipi_interrupt(void);
#endif
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