blob: b02026ad6e342d82da4347b0bd1e3e56ff3099eb [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/platform_device.h>
#include <asm/cpu_type.h>
struct irq_bucket {
struct irq_bucket *next;
unsigned int real_irq;
unsigned int irq;
unsigned int pil;
#define SUN4M_HARD_INT(x) (0x000000001 << (x))
#define SUN4M_SOFT_INT(x) (0x000010000 << (x))
#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);
void (*clear_clock_irq)(void);
void (*load_profile_irq)(int cpu, unsigned int limit);
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);
unsigned long leon_get_irqmask(unsigned int irq);
/* irq_32.c */
void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs);
/* sun4m_irq.c */
void sun4m_nmi(struct pt_regs *regs);
/* sun4d_irq.c */
void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs);
/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
#define SUN4D_IPI_IRQ 13
void sun4d_ipi_interrupt(void);