LXR linux/arch/blackfin/include/asm/pda.h

   1/*
   2 * Copyright 2007-2009 Analog Devices Inc.
   3 *                         Philippe Gerum <rpm@xenomai.org>
   4 *
   5 * Licensed under the GPL-2 or later.
   6 */
   7
   8#ifndef _ASM_BLACKFIN_PDA_H
   9#define _ASM_BLACKFIN_PDA_H
  10
  11#include <mach/anomaly.h>
  12
  13#ifndef __ASSEMBLY__
  14
  15struct blackfin_pda {                   /* Per-processor Data Area */
  16        struct blackfin_pda *next;
  17
  18        unsigned long syscfg;
  19#ifdef CONFIG_SMP
  20        unsigned long imask;            /* Current IMASK value */
  21#endif
  22
  23        unsigned long *ipdt;            /* Start of switchable I-CPLB table */
  24        unsigned long *ipdt_swapcount;  /* Number of swaps in ipdt */
  25        unsigned long *dpdt;            /* Start of switchable D-CPLB table */
  26        unsigned long *dpdt_swapcount;  /* Number of swaps in dpdt */
  27
  28        /*
  29         * Single instructions can have multiple faults, which
  30         * need to be handled by traps.c, in irq5. We store
  31         * the exception cause to ensure we don't miss a
  32         * double fault condition
  33         */
  34        unsigned long ex_iptr;
  35        unsigned long ex_optr;
  36        unsigned long ex_buf[4];
  37        unsigned long ex_imask;         /* Saved imask from exception */
  38        unsigned long ex_ipend;         /* Saved IPEND from exception */
  39        unsigned long *ex_stack;        /* Exception stack space */
  40
  41#ifdef ANOMALY_05000261
  42        unsigned long last_cplb_fault_retx;
  43#endif
  44        unsigned long dcplb_fault_addr;
  45        unsigned long icplb_fault_addr;
  46        unsigned long retx;
  47        unsigned long seqstat;
  48        unsigned int __nmi_count;       /* number of times NMI asserted on this CPU */
  49#ifdef CONFIG_DEBUG_DOUBLEFAULT
  50        unsigned long dcplb_doublefault_addr;
  51        unsigned long icplb_doublefault_addr;
  52        unsigned long retx_doublefault;
  53        unsigned long seqstat_doublefault;
  54#endif
  55};
  56
  57extern struct blackfin_pda cpu_pda[];
  58
  59#endif  /* __ASSEMBLY__ */
  60
  61#endif /* _ASM_BLACKFIN_PDA_H */
  62