1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/platform_device.h>
4 #include <asm/cpu_type.h>
7 struct irq_bucket *next;
13 #define SUN4M_HARD_INT(x) (0x000000001 << (x))
14 #define SUN4M_SOFT_INT(x) (0x000010000 << (x))
16 #define SUN4D_MAX_BOARD 10
17 #define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
19 /* Map between the irq identifier used in hw to the
20 * irq_bucket. The map is sufficient large to hold
21 * the sun4d hw identifiers.
23 extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
26 /* sun4m specific type definitions */
28 /* This maps direct to CPU specific interrupt registers */
29 struct sun4m_irq_percpu {
35 /* This maps direct to global interrupt registers */
36 struct sun4m_irq_global {
44 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
45 extern struct sun4m_irq_global __iomem *sun4m_irq_global;
47 /* The following definitions describe the individual platform features: */
48 #define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */
49 #define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */
50 #define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */
53 * Platform specific configuration
54 * The individual platforms assign their platform
55 * specifics in their init functions.
58 void (*init_timers)(void);
59 unsigned int (*build_device_irq)(struct platform_device *op,
60 unsigned int real_irq);
62 /* generic clockevent features - see FEAT_* above */
65 /* clock rate used for clock event timer */
68 /* one period for clock source timer */
69 unsigned int cs_period;
71 /* function to obtain offsett for cs period */
72 unsigned int (*get_cycles_offset)(void);
74 void (*clear_clock_irq)(void);
75 void (*load_profile_irq)(int cpu, unsigned int limit);
77 extern struct sparc_config sparc_config;
79 unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
80 void irq_link(unsigned int irq);
81 void irq_unlink(unsigned int irq);
82 void handler_irq(unsigned int pil, struct pt_regs *regs);
84 unsigned long leon_get_irqmask(unsigned int irq);
87 void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs);
90 void sun4m_nmi(struct pt_regs *regs);
93 void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs);
97 /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
98 #define SUN4D_IPI_IRQ 13
100 void sun4d_ipi_interrupt(void);