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kernel/linux-rt-4.4.41/arch/blackfin/include/asm/pda.h 1.86 KB
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  /*
   * Copyright 2007-2009 Analog Devices Inc.
   *                         Philippe Gerum <rpm@xenomai.org>
   *
   * Licensed under the GPL-2 or later.
   */
  
  #ifndef _ASM_BLACKFIN_PDA_H
  #define _ASM_BLACKFIN_PDA_H
  
  #include <mach/anomaly.h>
  
  #ifndef __ASSEMBLY__
  
  struct blackfin_pda {			/* Per-processor Data Area */
  #ifdef CONFIG_SMP
  	struct blackfin_pda *next;
  #endif
  
  	unsigned long syscfg;
  #ifdef CONFIG_SMP
  	unsigned long imask;		/* Current IMASK value */
  #endif
  
  	unsigned long *ipdt;		/* Start of switchable I-CPLB table */
  	unsigned long *ipdt_swapcount;	/* Number of swaps in ipdt */
  	unsigned long *dpdt;		/* Start of switchable D-CPLB table */
  	unsigned long *dpdt_swapcount;	/* Number of swaps in dpdt */
  
  	/*
  	 * Single instructions can have multiple faults, which
  	 * need to be handled by traps.c, in irq5. We store
  	 * the exception cause to ensure we don't miss a
  	 * double fault condition
  	 */
  	unsigned long ex_iptr;
  	unsigned long ex_optr;
  	unsigned long ex_buf[4];
  	unsigned long ex_imask;		/* Saved imask from exception */
  	unsigned long ex_ipend;		/* Saved IPEND from exception */
  	unsigned long *ex_stack;	/* Exception stack space */
  
  #ifdef ANOMALY_05000261
  	unsigned long last_cplb_fault_retx;
  #endif
  	unsigned long dcplb_fault_addr;
  	unsigned long icplb_fault_addr;
  	unsigned long retx;
  	unsigned long seqstat;
  	unsigned int __nmi_count;	/* number of times NMI asserted on this CPU */
  #ifdef CONFIG_DEBUG_DOUBLEFAULT
  	unsigned long dcplb_doublefault_addr;
  	unsigned long icplb_doublefault_addr;
  	unsigned long retx_doublefault;
  	unsigned long seqstat_doublefault;
  #endif
  };
  
  struct blackfin_initial_pda {
  	void *retx;
  #ifdef CONFIG_DEBUG_DOUBLEFAULT
  	void *dcplb_doublefault_addr;
  	void *icplb_doublefault_addr;
  	void *retx_doublefault;
  	unsigned seqstat_doublefault;
  #endif
  };
  
  extern struct blackfin_pda cpu_pda[];
  
  #endif	/* __ASSEMBLY__ */
  
  #endif /* _ASM_BLACKFIN_PDA_H */