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kernel/linux-rt-4.4.41/arch/blackfin/include/asm/bfin-global.h 2.8 KB
5113f6f70   김현기   kernel add
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  /*
   * Global extern defines for blackfin
   *
   * Copyright 2006-2009 Analog Devices Inc.
   *
   * Licensed under the GPL-2 or later.
   */
  
  #ifndef _BFIN_GLOBAL_H_
  #define _BFIN_GLOBAL_H_
  
  #ifndef __ASSEMBLY__
  
  #include <linux/linkage.h>
  #include <linux/types.h>
  
  #if defined(CONFIG_DMA_UNCACHED_32M)
  # define DMA_UNCACHED_REGION (32 * 1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_16M)
  # define DMA_UNCACHED_REGION (16 * 1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_8M)
  # define DMA_UNCACHED_REGION (8 * 1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_4M)
  # define DMA_UNCACHED_REGION (4 * 1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_2M)
  # define DMA_UNCACHED_REGION (2 * 1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_1M)
  # define DMA_UNCACHED_REGION (1024 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_512K)
  # define DMA_UNCACHED_REGION (512 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_256K)
  # define DMA_UNCACHED_REGION (256 * 1024)
  #elif defined(CONFIG_DMA_UNCACHED_128K)
  # define DMA_UNCACHED_REGION (128 * 1024)
  #else
  # define DMA_UNCACHED_REGION (0)
  #endif
  
  extern void bfin_setup_caches(unsigned int cpu);
  extern void bfin_setup_cpudata(unsigned int cpu);
  
  extern unsigned long get_cclk(void);
  extern unsigned long get_sclk(void);
  #ifdef CONFIG_BF60x
  extern unsigned long get_sclk0(void);
  extern unsigned long get_sclk1(void);
  extern unsigned long get_dclk(void);
  #endif
  extern unsigned long sclk_to_usecs(unsigned long sclk);
  extern unsigned long usecs_to_sclk(unsigned long usecs);
  
  struct pt_regs;
  #if defined(CONFIG_DEBUG_VERBOSE)
  extern void dump_bfin_process(struct pt_regs *regs);
  extern void dump_bfin_mem(struct pt_regs *regs);
  extern void dump_bfin_trace_buffer(void);
  #else
  #define dump_bfin_process(regs)
  #define dump_bfin_mem(regs)
  #define dump_bfin_trace_buffer()
  #endif
  
  extern void *l1_data_A_sram_alloc(size_t);
  extern void *l1_data_B_sram_alloc(size_t);
  extern void *l1_inst_sram_alloc(size_t);
  extern void *l1_data_sram_alloc(size_t);
  extern void *l1_data_sram_zalloc(size_t);
  extern void *l2_sram_alloc(size_t);
  extern void *l2_sram_zalloc(size_t);
  extern int l1_data_A_sram_free(const void*);
  extern int l1_data_B_sram_free(const void*);
  extern int l1_inst_sram_free(const void*);
  extern int l1_data_sram_free(const void*);
  extern int l2_sram_free(const void *);
  extern int sram_free(const void*);
  
  #define L1_INST_SRAM		0x00000001
  #define L1_DATA_A_SRAM		0x00000002
  #define L1_DATA_B_SRAM		0x00000004
  #define L1_DATA_SRAM		0x00000006
  #define L2_SRAM			0x00000008
  extern void *sram_alloc_with_lsl(size_t, unsigned long);
  extern int sram_free_with_lsl(const void*);
  
  extern void *isram_memcpy(void *dest, const void *src, size_t n);
  
  extern const char bfin_board_name[];
  
  extern unsigned long bfin_sic_iwr[];
  extern unsigned vr_wakeup;
  extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
  
  #endif
  
  #endif				/* _BLACKFIN_H_ */