arch/arm/include/asm/tcm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Copyright (C) 2008-2009 ST-Ericsson AB
   5  *
   6  * Author: Rickard Andersson <rickard.andersson@stericsson.com>
   7  * Author: Linus Walleij <linus.walleij@stericsson.com>
   8  */
   9 #ifndef __ASMARM_TCM_H
  10 #define __ASMARM_TCM_H
  11
  12 #ifndef CONFIG_HAVE_TCM
  13 #error "You should not be including tcm.h unless you have a TCM!"
  14 #endif
  15
  16 #include <linux/compiler.h>
  17
  18 /* Tag variables with this */
  19 #define __tcmdata __section(.tcm.data)
  20 /* Tag constants with this */
  21 #define __tcmconst __section(.tcm.rodata)
  22 /* Tag functions inside TCM called from outside TCM with this */
  23 #define __tcmfunc __attribute__((long_call)) __section(.tcm.text) noinline
  24 /* Tag function inside TCM called from inside TCM  with this */
  25 #define __tcmlocalfunc __section(.tcm.text)
  26
  27 void *tcm_alloc(size_t len);
  28 void tcm_free(void *addr, size_t len);
  29 bool tcm_dtcm_present(void);
  30 bool tcm_itcm_present(void);
  31
  32 #endif