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- #ifndef ASM_CELL_PIC_H
- #define ASM_CELL_PIC_H
- #ifdef __KERNEL__
- /*
- * Mapping of IIC pending bits into per-node
- * interrupt numbers.
- *
- * IRQ FF CC SS PP FF CC SS PP Description
- *
- * 00-3f 80 02 +0 00 - 80 02 +0 3f South Bridge
- * 00-3f 80 02 +b 00 - 80 02 +b 3f South Bridge
- * 41-4a 80 00 +1 ** - 80 00 +a ** SPU Class 0
- * 51-5a 80 01 +1 ** - 80 01 +a ** SPU Class 1
- * 61-6a 80 02 +1 ** - 80 02 +a ** SPU Class 2
- * 70-7f C0 ** ** 00 - C0 ** ** 0f IPI
- *
- * F flags
- * C class
- * S source
- * P Priority
- * + node number
- * * don't care
- *
- * A node consists of a Cell Broadband Engine and an optional
- * south bridge device providing a maximum of 64 IRQs.
- * The south bridge may be connected to either IOIF0
- * or IOIF1.
- * Each SPE is represented as three IRQ lines, one per
- * interrupt class.
- * 16 IRQ numbers are reserved for inter processor
- * interruptions, although these are only used in the
- * range of the first node.
- *
- * This scheme needs 128 IRQ numbers per BIF node ID,
- * which means that with the total of 512 lines
- * available, we can have a maximum of four nodes.
- */
- enum {
- IIC_EXT_OFFSET = 0x00, /* Start of south bridge IRQs */
- IIC_NUM_EXT = 0x40, /* Number of south bridge IRQs */
- IIC_SPE_OFFSET = 0x40, /* Start of SPE interrupts */
- IIC_CLASS_STRIDE = 0x10, /* SPE IRQs per class */
- IIC_IPI_OFFSET = 0x70, /* Start of IPI IRQs */
- IIC_NUM_IPIS = 0x10, /* IRQs reserved for IPI */
- IIC_NODE_STRIDE = 0x80, /* Total IRQs per node */
- };
- extern void iic_init_IRQ(void);
- extern int iic_get_irq(struct pt_regs *regs);
- extern void iic_cause_IPI(int cpu, int mesg);
- extern void iic_request_IPIs(void);
- extern void iic_setup_cpu(void);
- extern void iic_local_enable(void);
- extern void iic_local_disable(void);
- extern u8 iic_get_target_id(int cpu);
- extern void spider_init_IRQ(void);
- extern int spider_get_irq(int node);
- #endif
- #endif /* ASM_CELL_PIC_H */
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