[mirror_ubuntu-bionic-kernel.git] / include / asm-ia64 / iosapic.h

#ifndef __ASM_IA64_IOSAPIC_H
#define __ASM_IA64_IOSAPIC_H

#define	IOSAPIC_REG_SELECT	0x0
#define	IOSAPIC_WINDOW		0x10
#define	IOSAPIC_EOI		0x40

#define	IOSAPIC_VERSION		0x1

/*
 * Redirection table entry
 */
#define	IOSAPIC_RTE_LOW(i)	(0x10+i*2)
#define	IOSAPIC_RTE_HIGH(i)	(0x11+i*2)

#define	IOSAPIC_DEST_SHIFT		16

/*
 * Delivery mode
 */
#define	IOSAPIC_DELIVERY_SHIFT		8
#define	IOSAPIC_FIXED			0x0
#define	IOSAPIC_LOWEST_PRIORITY	0x1
#define	IOSAPIC_PMI			0x2
#define	IOSAPIC_NMI			0x4
#define	IOSAPIC_INIT			0x5
#define	IOSAPIC_EXTINT			0x7

/*
 * Interrupt polarity
 */
#define	IOSAPIC_POLARITY_SHIFT		13
#define	IOSAPIC_POL_HIGH		0
#define	IOSAPIC_POL_LOW		1

/*
 * Trigger mode
 */
#define	IOSAPIC_TRIGGER_SHIFT		15
#define	IOSAPIC_EDGE			0
#define	IOSAPIC_LEVEL			1

/*
 * Mask bit
 */

#define	IOSAPIC_MASK_SHIFT		16
#define	IOSAPIC_MASK			(1<<IOSAPIC_MASK_SHIFT)

#define IOSAPIC_VECTOR_MASK		0xffffff00

#ifndef __ASSEMBLY__

#ifdef CONFIG_IOSAPIC

#define NR_IOSAPICS			256

#ifdef CONFIG_PARAVIRT_GUEST
#include <asm/paravirt.h>
#else
#define iosapic_pcat_compat_init	ia64_native_iosapic_pcat_compat_init
#define __iosapic_read			__ia64_native_iosapic_read
#define __iosapic_write			__ia64_native_iosapic_write
#define iosapic_get_irq_chip		ia64_native_iosapic_get_irq_chip
#endif

extern void __init ia64_native_iosapic_pcat_compat_init(void);
extern struct irq_chip *ia64_native_iosapic_get_irq_chip(unsigned long trigger);

static inline unsigned int
__ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg)
{
	writel(reg, iosapic + IOSAPIC_REG_SELECT);
	return readl(iosapic + IOSAPIC_WINDOW);
}

static inline void
__ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
{
	writel(reg, iosapic + IOSAPIC_REG_SELECT);
	writel(val, iosapic + IOSAPIC_WINDOW);
}

static inline void iosapic_eoi(char __iomem *iosapic, u32 vector)
{
	writel(vector, iosapic + IOSAPIC_EOI);
}

extern void __init iosapic_system_init (int pcat_compat);
extern int __devinit iosapic_init (unsigned long address,
				    unsigned int gsi_base);
#ifdef CONFIG_HOTPLUG
extern int iosapic_remove (unsigned int gsi_base);
#else
#define iosapic_remove(gsi_base)				(-EINVAL)
#endif /* CONFIG_HOTPLUG */
extern int gsi_to_irq (unsigned int gsi);
extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
				  unsigned long trigger);
extern void iosapic_unregister_intr (unsigned int irq);
extern void __devinit iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
				      unsigned long polarity,
				      unsigned long trigger);
extern int __init iosapic_register_platform_intr (u32 int_type,
					   unsigned int gsi,
					   int pmi_vector,
					   u16 eid, u16 id,
					   unsigned long polarity,
					   unsigned long trigger);

#ifdef CONFIG_NUMA
extern void __devinit map_iosapic_to_node (unsigned int, int);
#endif
#else
#define iosapic_system_init(pcat_compat)			do { } while (0)
#define iosapic_init(address,gsi_base)				(-EINVAL)
#define iosapic_remove(gsi_base)				(-ENODEV)
#define iosapic_register_intr(gsi,polarity,trigger)		(gsi)
#define iosapic_unregister_intr(irq)				do { } while (0)
#define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger)	do { } while (0)
#define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
	polarity,trigger)					(gsi)
#endif

# endif /* !__ASSEMBLY__ */
#endif /* __ASM_IA64_IOSAPIC_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_IA64_IOSAPIC_H
	2	#define __ASM_IA64_IOSAPIC_H
	3
	4	#define IOSAPIC_REG_SELECT 0x0
	5	#define IOSAPIC_WINDOW 0x10
	6	#define IOSAPIC_EOI 0x40
	7
	8	#define IOSAPIC_VERSION 0x1
	9
	10	/*
	11	* Redirection table entry
	12	*/
	13	#define IOSAPIC_RTE_LOW(i) (0x10+i*2)
	14	#define IOSAPIC_RTE_HIGH(i) (0x11+i*2)
	15
	16	#define IOSAPIC_DEST_SHIFT 16
	17
	18	/*
	19	* Delivery mode
	20	*/
	21	#define IOSAPIC_DELIVERY_SHIFT 8
	22	#define IOSAPIC_FIXED 0x0
	23	#define IOSAPIC_LOWEST_PRIORITY 0x1
	24	#define IOSAPIC_PMI 0x2
	25	#define IOSAPIC_NMI 0x4
	26	#define IOSAPIC_INIT 0x5
	27	#define IOSAPIC_EXTINT 0x7
	28
	29	/*
	30	* Interrupt polarity
	31	*/
	32	#define IOSAPIC_POLARITY_SHIFT 13
	33	#define IOSAPIC_POL_HIGH 0
	34	#define IOSAPIC_POL_LOW 1
	35
	36	/*
	37	* Trigger mode
	38	*/
	39	#define IOSAPIC_TRIGGER_SHIFT 15
	40	#define IOSAPIC_EDGE 0
	41	#define IOSAPIC_LEVEL 1
	42
	43	/*
	44	* Mask bit
	45	*/
	46
	47	#define IOSAPIC_MASK_SHIFT 16
	48	#define IOSAPIC_MASK (1<<IOSAPIC_MASK_SHIFT)
	49
cd378f18 YI	50	#define IOSAPIC_VECTOR_MASK 0xffffff00
cd378f18 YI	51
1da177e4 LT	52	#ifndef __ASSEMBLY__
	53
	54	#ifdef CONFIG_IOSAPIC
	55
	56	#define NR_IOSAPICS 256
	57
33b39e84 IY	58	#ifdef CONFIG_PARAVIRT_GUEST
	59	#include <asm/paravirt.h>
	60	#else
	61	#define iosapic_pcat_compat_init ia64_native_iosapic_pcat_compat_init
	62	#define __iosapic_read __ia64_native_iosapic_read
	63	#define __iosapic_write __ia64_native_iosapic_write
	64	#define iosapic_get_irq_chip ia64_native_iosapic_get_irq_chip
	65	#endif
	66
	67	extern void __init ia64_native_iosapic_pcat_compat_init(void);
	68	extern struct irq_chip *ia64_native_iosapic_get_irq_chip(unsigned long trigger);
	69
	70	static inline unsigned int
	71	__ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg)
1da177e4 LT	72	{
	73	writel(reg, iosapic + IOSAPIC_REG_SELECT);
	74	return readl(iosapic + IOSAPIC_WINDOW);
	75	}
	76
33b39e84 IY	77	static inline void
33b39e84 IY	78	__ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
1da177e4 LT	79	{
	80	writel(reg, iosapic + IOSAPIC_REG_SELECT);
	81	writel(val, iosapic + IOSAPIC_WINDOW);
	82	}
	83
	84	static inline void iosapic_eoi(char __iomem *iosapic, u32 vector)
	85	{
	86	writel(vector, iosapic + IOSAPIC_EOI);
	87	}
	88
	89	extern void __init iosapic_system_init (int pcat_compat);
0e888adc	90	extern int __devinit iosapic_init (unsigned long address,
1da177e4	91	unsigned int gsi_base);
0e888adc KK	92	#ifdef CONFIG_HOTPLUG
0e888adc KK	93	extern int iosapic_remove (unsigned int gsi_base);
1c53e435 KK	94	#else
1c53e435 KK	95	#define iosapic_remove(gsi_base) (-EINVAL)
0e888adc	96	#endif /* CONFIG_HOTPLUG */
1da177e4	97	extern int gsi_to_irq (unsigned int gsi);
1da177e4 LT	98	extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
1da177e4 LT	99	unsigned long trigger);
1da177e4	100	extern void iosapic_unregister_intr (unsigned int irq);
0f7ac29e	101	extern void __devinit iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
1da177e4 LT	102	unsigned long polarity,
	103	unsigned long trigger);
	104	extern int __init iosapic_register_platform_intr (u32 int_type,
	105	unsigned int gsi,
	106	int pmi_vector,
	107	u16 eid, u16 id,
	108	unsigned long polarity,
	109	unsigned long trigger);
1da177e4	110
1da177e4	111	#ifdef CONFIG_NUMA
0e888adc	112	extern void __devinit map_iosapic_to_node (unsigned int, int);
1da177e4 LT	113	#endif
	114	#else
	115	#define iosapic_system_init(pcat_compat) do { } while (0)
0e888adc	116	#define iosapic_init(address,gsi_base) (-EINVAL)
0e888adc	117	#define iosapic_remove(gsi_base) (-ENODEV)
1da177e4 LT	118	#define iosapic_register_intr(gsi,polarity,trigger) (gsi)
	119	#define iosapic_unregister_intr(irq) do { } while (0)
	120	#define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger) do { } while (0)
	121	#define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
	122	polarity,trigger) (gsi)
	123	#endif
	124
	125	# endif /* !__ASSEMBLY__ */
	126	#endif /* __ASM_IA64_IOSAPIC_H */