diff options
Diffstat (limited to 'include/asm-sparc64/irq.h')
-rw-r--r-- | include/asm-sparc64/irq.h | 56 |
1 files changed, 21 insertions, 35 deletions
diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h index 3aef0ca67750..8b70edcb80dc 100644 --- a/include/asm-sparc64/irq.h +++ b/include/asm-sparc64/irq.h | |||
@@ -16,10 +16,22 @@ | |||
16 | #include <asm/pil.h> | 16 | #include <asm/pil.h> |
17 | #include <asm/ptrace.h> | 17 | #include <asm/ptrace.h> |
18 | 18 | ||
19 | struct ino_bucket; | ||
20 | |||
21 | #define MAX_IRQ_DESC_ACTION 4 | ||
22 | |||
23 | struct irq_desc { | ||
24 | void (*pre_handler)(struct ino_bucket *, void *, void *); | ||
25 | void *pre_handler_arg1; | ||
26 | void *pre_handler_arg2; | ||
27 | u32 action_active_mask; | ||
28 | struct irqaction action[MAX_IRQ_DESC_ACTION]; | ||
29 | }; | ||
30 | |||
19 | /* You should not mess with this directly. That's the job of irq.c. | 31 | /* You should not mess with this directly. That's the job of irq.c. |
20 | * | 32 | * |
21 | * If you make changes here, please update hand coded assembler of | 33 | * If you make changes here, please update hand coded assembler of |
22 | * SBUS/floppy interrupt handler in entry.S -DaveM | 34 | * the vectored interrupt trap handler in entry.S -DaveM |
23 | * | 35 | * |
24 | * This is currently one DCACHE line, two buckets per L2 cache | 36 | * This is currently one DCACHE line, two buckets per L2 cache |
25 | * line. Keep this in mind please. | 37 | * line. Keep this in mind please. |
@@ -42,24 +54,11 @@ struct ino_bucket { | |||
42 | /* Miscellaneous flags. */ | 54 | /* Miscellaneous flags. */ |
43 | /*0x06*/unsigned char flags; | 55 | /*0x06*/unsigned char flags; |
44 | 56 | ||
45 | /* This is used to deal with IBF_DMA_SYNC on | 57 | /* Currently unused. */ |
46 | * Sabre systems. | 58 | /*0x07*/unsigned char __pad; |
47 | */ | 59 | |
48 | /*0x07*/unsigned char synctab_ent; | 60 | /* Reference to IRQ descriptor for this bucket. */ |
49 | 61 | /*0x08*/struct irq_desc *irq_info; | |
50 | /* Reference to handler for this IRQ. If this is | ||
51 | * non-NULL this means it is active and should be | ||
52 | * serviced. Else the pending member is set to one | ||
53 | * and later registry of the interrupt checks for | ||
54 | * this condition. | ||
55 | * | ||
56 | * Normally this is just an irq_action structure. | ||
57 | * But, on PCI, if multiple interrupt sources behind | ||
58 | * a bridge have multiple interrupt sources that share | ||
59 | * the same INO bucket, this points to an array of | ||
60 | * pointers to four IRQ action structures. | ||
61 | */ | ||
62 | /*0x08*/void *irq_info; | ||
63 | 62 | ||
64 | /* Sun5 Interrupt Clear Register. */ | 63 | /* Sun5 Interrupt Clear Register. */ |
65 | /*0x10*/unsigned long iclr; | 64 | /*0x10*/unsigned long iclr; |
@@ -69,12 +68,6 @@ struct ino_bucket { | |||
69 | 68 | ||
70 | }; | 69 | }; |
71 | 70 | ||
72 | #ifdef CONFIG_PCI | ||
73 | extern unsigned long pci_dma_wsync; | ||
74 | extern unsigned long dma_sync_reg_table[256]; | ||
75 | extern unsigned char dma_sync_reg_table_entry; | ||
76 | #endif | ||
77 | |||
78 | /* IMAP/ICLR register defines */ | 71 | /* IMAP/ICLR register defines */ |
79 | #define IMAP_VALID 0x80000000 /* IRQ Enabled */ | 72 | #define IMAP_VALID 0x80000000 /* IRQ Enabled */ |
80 | #define IMAP_TID_UPA 0x7c000000 /* UPA TargetID */ | 73 | #define IMAP_TID_UPA 0x7c000000 /* UPA TargetID */ |
@@ -90,11 +83,9 @@ extern unsigned char dma_sync_reg_table_entry; | |||
90 | #define ICLR_PENDING 0x00000003 /* Pending state */ | 83 | #define ICLR_PENDING 0x00000003 /* Pending state */ |
91 | 84 | ||
92 | /* Only 8-bits are available, be careful. -DaveM */ | 85 | /* Only 8-bits are available, be careful. -DaveM */ |
93 | #define IBF_DMA_SYNC 0x01 /* DMA synchronization behind PCI bridge needed. */ | 86 | #define IBF_PCI 0x02 /* PSYCHO/SABRE/SCHIZO PCI interrupt. */ |
94 | #define IBF_PCI 0x02 /* Indicates PSYCHO/SABRE/SCHIZO PCI interrupt. */ | 87 | #define IBF_ACTIVE 0x04 /* Interrupt is active and has a handler.*/ |
95 | #define IBF_ACTIVE 0x04 /* This interrupt is active and has a handler. */ | 88 | #define IBF_INPROGRESS 0x10 /* IRQ is being serviced. */ |
96 | #define IBF_MULTI 0x08 /* On PCI, indicates shared bucket. */ | ||
97 | #define IBF_INPROGRESS 0x10 /* IRQ is being serviced. */ | ||
98 | 89 | ||
99 | #define NUM_IVECS (IMAP_INR + 1) | 90 | #define NUM_IVECS (IMAP_INR + 1) |
100 | extern struct ino_bucket ivector_table[NUM_IVECS]; | 91 | extern struct ino_bucket ivector_table[NUM_IVECS]; |
@@ -122,11 +113,6 @@ extern void enable_irq(unsigned int); | |||
122 | extern unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long imap); | 113 | extern unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long imap); |
123 | extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); | 114 | extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); |
124 | 115 | ||
125 | extern int request_fast_irq(unsigned int irq, | ||
126 | irqreturn_t (*handler)(int, void *, struct pt_regs *), | ||
127 | unsigned long flags, __const__ char *devname, | ||
128 | void *dev_id); | ||
129 | |||
130 | static __inline__ void set_softint(unsigned long bits) | 116 | static __inline__ void set_softint(unsigned long bits) |
131 | { | 117 | { |
132 | __asm__ __volatile__("wr %0, 0x0, %%set_softint" | 118 | __asm__ __volatile__("wr %0, 0x0, %%set_softint" |