treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194

[linux-2.6-block.git] / arch / arm / include / asm / tcm.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *
 * Copyright (C) 2008-2009 ST-Ericsson AB
 *
 * Author: Rickard Andersson <rickard.andersson@stericsson.com>
 * Author: Linus Walleij <linus.walleij@stericsson.com>
 */
#ifndef __ASMARM_TCM_H
#define __ASMARM_TCM_H

#ifndef CONFIG_HAVE_TCM
#error "You should not be including tcm.h unless you have a TCM!"
#endif

#include <linux/compiler.h>

/* Tag variables with this */
#define __tcmdata __section(.tcm.data)
/* Tag constants with this */
#define __tcmconst __section(.tcm.rodata)
/* Tag functions inside TCM called from outside TCM with this */
#define __tcmfunc __attribute__((long_call)) __section(.tcm.text) noinline
/* Tag function inside TCM called from inside TCM  with this */
#define __tcmlocalfunc __section(.tcm.text)

void *tcm_alloc(size_t len);
void tcm_free(void *addr, size_t len);
bool tcm_dtcm_present(void);
bool tcm_itcm_present(void);

#endif