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This adds the TCM interface to Linux, when active, it will detect and report TCM memories and sizes early in boot if present, introduce generic TCM memory handling, provide a generic TCM memory pool and select TCM memory for the U300 platform. See the Documentation/arm/tcm.txt for documentation. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
32 lines
879 B
C
32 lines
879 B
C
/*
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*
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* Copyright (C) 2008-2009 ST-Ericsson AB
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* License terms: GNU General Public License (GPL) version 2
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*
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* Author: Rickard Andersson <rickard.andersson@stericsson.com>
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* Author: Linus Walleij <linus.walleij@stericsson.com>
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*
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*/
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#ifndef __ASMARM_TCM_H
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#define __ASMARM_TCM_H
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#ifndef CONFIG_HAVE_TCM
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#error "You should not be including tcm.h unless you have a TCM!"
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#endif
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#include <linux/compiler.h>
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/* Tag variables with this */
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#define __tcmdata __section(.tcm.data)
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/* Tag constants with this */
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#define __tcmconst __section(.tcm.rodata)
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/* Tag functions inside TCM called from outside TCM with this */
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#define __tcmfunc __attribute__((long_call)) __section(.tcm.text) noinline
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/* Tag function inside TCM called from inside TCM with this */
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#define __tcmlocalfunc __section(.tcm.text)
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void *tcm_alloc(size_t len);
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void tcm_free(void *addr, size_t len);
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#endif
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