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