arch/powerpc/sysdev/ipic.h

   1 /*
   2  * IPIC private definitions and structure.
   3  *
   4  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
   5  *
   6  * Copyright 2005 Freescale Semiconductor, Inc
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  */
  13 #ifndef __IPIC_H__
  14 #define __IPIC_H__
  15
  16 #include <asm/ipic.h>
  17
  18 #define NR_IPIC_INTS 128
  19
  20 /* External IRQS */
  21 #define IPIC_IRQ_EXT0 48
  22 #define IPIC_IRQ_EXT1 17
  23 #define IPIC_IRQ_EXT7 23
  24
  25 /* Default Priority Registers */
  26 #define IPIC_PRIORITY_DEFAULT 0x05309770
  27
  28 /* System Global Interrupt Configuration Register */
  29 #define SICFR_IPSA      0x00010000
  30 #define SICFR_IPSB      0x00020000
  31 #define SICFR_IPSC      0x00040000
  32 #define SICFR_IPSD      0x00080000
  33 #define SICFR_MPSA      0x00200000
  34 #define SICFR_MPSB      0x00400000
  35
  36 /* System External Interrupt Mask Register */
  37 #define SEMSR_SIRQ0     0x00008000
  38
  39 /* System Error Control Register */
  40 #define SERCR_MCPR      0x00000001
  41
  42 struct ipic {
  43         volatile u32 __iomem    *regs;
  44
  45         /* The remapper for this IPIC */
  46         struct irq_host         *irqhost;
  47 };
  48
  49 struct ipic_info {
  50         u8      ack;            /* pending register offset from base if the irq
  51                                    supports ack operation */
  52         u8      mask;           /* mask register offset from base */
  53         u8      prio;           /* priority register offset from base */
  54         u8      force;          /* force register offset from base */
  55         u8      bit;            /* register bit position (as per doc)
  56                                    bit mask = 1 << (31 - bit) */
  57         u8      prio_mask;      /* priority mask value */
  58 };
  59
  60 #endif /* __IPIC_H__ */