arch/blackfin/include/asm/sections.h

   1 /*
   2  * Copyright 2004-2009 Analog Devices Inc.
   3  *
   4  * Licensed under the GPL-2 or later.
   5  */
   6
   7 #ifndef _BLACKFIN_SECTIONS_H
   8 #define _BLACKFIN_SECTIONS_H
   9
  10 /* only used when MTD_UCLINUX */
  11 extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
  12
  13 extern unsigned long _ramstart, _ramend, _rambase;
  14 extern unsigned long memory_start, memory_end, physical_mem_end;
  15
  16 extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
  17         _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
  18         _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
  19         _ebss_l2[], _l2_lma_start[];
  20
  21 #include <asm/mem_map.h>
  22
  23 /* Blackfin systems have discontinuous memory map and no virtualized memory */
  24 static inline int arch_is_kernel_text(unsigned long addr)
  25 {
  26         return
  27                 (L1_CODE_LENGTH &&
  28                  addr >= (unsigned long)_stext_l1 &&
  29                  addr <  (unsigned long)_etext_l1)
  30                 ||
  31                 (L2_LENGTH &&
  32                  addr >= (unsigned long)_stext_l2 &&
  33                  addr <  (unsigned long)_etext_l2);
  34 }
  35 #define arch_is_kernel_text(addr) arch_is_kernel_text(addr)
  36
  37 static inline int arch_is_kernel_data(unsigned long addr)
  38 {
  39         return
  40                 (L1_DATA_A_LENGTH &&
  41                  addr >= (unsigned long)_sdata_l1 &&
  42                  addr <  (unsigned long)_ebss_l1)
  43                 ||
  44                 (L1_DATA_B_LENGTH &&
  45                  addr >= (unsigned long)_sdata_b_l1 &&
  46                  addr <  (unsigned long)_ebss_b_l1)
  47                 ||
  48                 (L2_LENGTH &&
  49                  addr >= (unsigned long)_sdata_l2 &&
  50                  addr <  (unsigned long)_ebss_l2);
  51 }
  52 #define arch_is_kernel_data(addr) arch_is_kernel_data(addr)
  53
  54 #include <asm-generic/sections.h>
  55
  56 #endif