Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | #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)
#ifndef __ASSEMBLY__
#ifdef CONFIG_IOSAPIC
#define NR_IOSAPICS 256
static inline unsigned int iosapic_read(char __iomem *iosapic, unsigned int reg)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
return readl(iosapic + IOSAPIC_WINDOW);
}
static inline void 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_vector (unsigned int gsi);
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 __init 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);
extern unsigned int iosapic_version (char __iomem *addr);
#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 */
|