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										 |  |  | /* irq.h: IRQ registers on the 64-bit Sparc.
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							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (C) 1996 David S. Miller (davem@davemloft.net) | 
					
						
							|  |  |  |  * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) | 
					
						
							|  |  |  |  */ | 
					
						
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							|  |  |  | #ifndef _SPARC64_IRQ_H
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							|  |  |  | #define _SPARC64_IRQ_H
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							|  |  |  | #include <linux/linkage.h>
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							|  |  |  | #include <linux/kernel.h>
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							|  |  |  | #include <linux/errno.h>
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							|  |  |  | #include <linux/interrupt.h>
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							|  |  |  | #include <asm/pil.h>
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							|  |  |  | #include <asm/ptrace.h>
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							|  |  |  | /* IMAP/ICLR register defines */ | 
					
						
							|  |  |  | #define IMAP_VALID		0x80000000UL	/* IRQ Enabled		*/
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							|  |  |  | #define IMAP_TID_UPA		0x7c000000UL	/* UPA TargetID		*/
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							|  |  |  | #define IMAP_TID_JBUS		0x7c000000UL	/* JBUS TargetID	*/
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							|  |  |  | #define IMAP_TID_SHIFT		26
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							|  |  |  | #define IMAP_AID_SAFARI		0x7c000000UL	/* Safari AgentID	*/
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							|  |  |  | #define IMAP_AID_SHIFT		26
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							|  |  |  | #define IMAP_NID_SAFARI		0x03e00000UL	/* Safari NodeID	*/
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							|  |  |  | #define IMAP_NID_SHIFT		21
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							|  |  |  | #define IMAP_IGN		0x000007c0UL	/* IRQ Group Number	*/
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							|  |  |  | #define IMAP_INO		0x0000003fUL	/* IRQ Number		*/
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							|  |  |  | #define IMAP_INR		0x000007ffUL	/* Full interrupt number*/
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							|  |  |  | #define ICLR_IDLE		0x00000000UL	/* Idle state		*/
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							|  |  |  | #define ICLR_TRANSMIT		0x00000001UL	/* Transmit state	*/
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							|  |  |  | #define ICLR_PENDING		0x00000003UL	/* Pending state	*/
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							|  |  |  | /* The largest number of unique interrupt sources we support.
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							|  |  |  |  * If this needs to ever be larger than 255, you need to change | 
					
						
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										 |  |  |  * the type of ino_bucket->irq as appropriate. | 
					
						
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										 |  |  |  * | 
					
						
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										 |  |  |  * ino_bucket->irq allocation is made during {sun4v_,}build_irq(). | 
					
						
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										 |  |  |  */ | 
					
						
							|  |  |  | #define NR_IRQS    255
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										 |  |  | extern void irq_install_pre_handler(int irq, | 
					
						
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										 |  |  | 				    void (*func)(unsigned int, void *, void *), | 
					
						
							|  |  |  | 				    void *arg1, void *arg2); | 
					
						
							|  |  |  | #define irq_canonicalize(irq)	(irq)
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							|  |  |  | extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); | 
					
						
							|  |  |  | extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); | 
					
						
							|  |  |  | extern unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino); | 
					
						
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										 |  |  | extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p, | 
					
						
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										 |  |  | 				    unsigned int msi_devino_start, | 
					
						
							|  |  |  | 				    unsigned int msi_devino_end); | 
					
						
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										 |  |  | extern void sun4v_destroy_msi(unsigned int irq); | 
					
						
							|  |  |  | extern unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p, | 
					
						
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										 |  |  | 				    unsigned int msi_devino_start, | 
					
						
							|  |  |  | 				    unsigned int msi_devino_end, | 
					
						
							|  |  |  | 				    unsigned long imap_base, | 
					
						
							|  |  |  | 				    unsigned long iclr_base); | 
					
						
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										 |  |  | extern void sun4u_destroy_msi(unsigned int irq); | 
					
						
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										 |  |  | extern unsigned char irq_alloc(unsigned int dev_handle, | 
					
						
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										 |  |  | 				    unsigned int dev_ino); | 
					
						
							|  |  |  | #ifdef CONFIG_PCI_MSI
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										 |  |  | extern void irq_free(unsigned int irq); | 
					
						
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										 |  |  | #endif
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							|  |  |  | extern void __init init_IRQ(void); | 
					
						
							|  |  |  | extern void fixup_irqs(void); | 
					
						
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							|  |  |  | static inline void set_softint(unsigned long bits) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	__asm__ __volatile__("wr	%0, 0x0, %%set_softint" | 
					
						
							|  |  |  | 			     : /* No outputs */ | 
					
						
							|  |  |  | 			     : "r" (bits)); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static inline void clear_softint(unsigned long bits) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	__asm__ __volatile__("wr	%0, 0x0, %%clear_softint" | 
					
						
							|  |  |  | 			     : /* No outputs */ | 
					
						
							|  |  |  | 			     : "r" (bits)); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static inline unsigned long get_softint(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	unsigned long retval; | 
					
						
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							|  |  |  | 	__asm__ __volatile__("rd	%%softint, %0" | 
					
						
							|  |  |  | 			     : "=r" (retval)); | 
					
						
							|  |  |  | 	return retval; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | void arch_trigger_all_cpu_backtrace(void); | 
					
						
							|  |  |  | #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
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										 |  |  | extern void *hardirq_stack[NR_CPUS]; | 
					
						
							|  |  |  | extern void *softirq_stack[NR_CPUS]; | 
					
						
							|  |  |  | #define __ARCH_HAS_DO_SOFTIRQ
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										 |  |  | #define NO_IRQ		0xffffffff
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										 |  |  | #endif
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