arch/arm/include/asm/tcm.h

   1 /*
   2  *
   3  * Copyright (C) 2008-2009 ST-Ericsson AB
   4  * License terms: GNU General Public License (GPL) version 2
   5  *
   6  * Author: Rickard Andersson <rickard.andersson@stericsson.com>
   7  * Author: Linus Walleij <linus.walleij@stericsson.com>
   8  *
   9  */
  10 #ifndef __ASMARM_TCM_H
  11 #define __ASMARM_TCM_H
  12
  13 #ifndef CONFIG_HAVE_TCM
  14 #error "You should not be including tcm.h unless you have a TCM!"
  15 #endif
  16
  17 #include <linux/compiler.h>
  18
  19 /* Tag variables with this */
  20 #define __tcmdata __section(.tcm.data)
  21 /* Tag constants with this */
  22 #define __tcmconst __section(.tcm.rodata)
  23 /* Tag functions inside TCM called from outside TCM with this */
  24 #define __tcmfunc __attribute__((long_call)) __section(.tcm.text) noinline
  25 /* Tag function inside TCM called from inside TCM  with this */
  26 #define __tcmlocalfunc __section(.tcm.text)
  27
  28 void *tcm_alloc(size_t len);
  29 void tcm_free(void *addr, size_t len);
  30 bool tcm_dtcm_present(void);
  31 bool tcm_itcm_present(void);
  32
  33 #endif