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kernel/linux-rt-4.4.41/arch/blackfin/include/asm/cplbinit.h 1.6 KB
5113f6f70   김현기   kernel add
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  /*
   * Common CPLB definitions for CPLB init
   *
   * Copyright 2006-2008 Analog Devices Inc.
   *
   * Licensed under the GPL-2 or later.
   */
  
  #ifndef __ASM_CPLBINIT_H__
  #define __ASM_CPLBINIT_H__
  
  #include <asm/blackfin.h>
  #include <asm/cplb.h>
  #include <linux/threads.h>
  
  #ifdef CONFIG_CPLB_SWITCH_TAB_L1
  # define PDT_ATTR __attribute__((l1_data))
  #else
  # define PDT_ATTR
  #endif
  
  struct cplb_entry {
  	unsigned long data, addr;
  };
  
  struct cplb_boundary {
  	unsigned long eaddr; /* End of this region.  */
  	unsigned long data; /* CPLB data value.  */
  };
  
  extern struct cplb_boundary dcplb_bounds[];
  extern struct cplb_boundary icplb_bounds[];
  extern int dcplb_nr_bounds, icplb_nr_bounds;
  
  extern struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
  extern struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
  extern int first_switched_icplb;
  extern int first_switched_dcplb;
  
  extern int nr_dcplb_miss[], nr_icplb_miss[], nr_icplb_supv_miss[];
  extern int nr_dcplb_prot[], nr_cplb_flush[];
  
  #ifdef CONFIG_MPU
  
  extern int first_mask_dcplb;
  
  extern int page_mask_order;
  extern int page_mask_nelts;
  
  extern unsigned long *current_rwx_mask[NR_CPUS];
  
  extern void flush_switched_cplbs(unsigned int);
  extern void set_mask_dcplbs(unsigned long *, unsigned int);
  
  extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *);
  
  #endif /* CONFIG_MPU */
  
  extern void bfin_icache_init(struct cplb_entry *icplb_tbl);
  extern void bfin_dcache_init(struct cplb_entry *icplb_tbl);
  
  #if defined(CONFIG_BFIN_DCACHE) || defined(CONFIG_BFIN_ICACHE)
  extern void generate_cplb_tables_all(void);
  extern void generate_cplb_tables_cpu(unsigned int cpu);
  #endif
  #endif