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 33