diff options
author | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-01-15 18:16:59 +0800 |
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committer | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-03-17 09:19:08 +0800 |
commit | b50f1704e9c441c58cf6dc05e72953ca30e1d4d2 (patch) | |
tree | bfd7f81c849aa42f6355d9fb383f2167c5f0e087 /arch/unicore32/include/asm/memblock.h | |
parent | f73670e8a55c11d47c28dca35dc4bc7dfbd4e6eb (diff) |
unicore32 core architecture: mm related: generic codes
This patch includes generic codes for memory management.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/unicore32/include/asm/memblock.h')
-rw-r--r-- | arch/unicore32/include/asm/memblock.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/unicore32/include/asm/memblock.h b/arch/unicore32/include/asm/memblock.h new file mode 100644 index 000000000000..a8a5d8d0a26e --- /dev/null +++ b/arch/unicore32/include/asm/memblock.h @@ -0,0 +1,46 @@ +/* + * linux/arch/unicore32/include/asm/memblock.h + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __UNICORE_MEMBLOCK_H__ +#define __UNICORE_MEMBLOCK_H__ + +/* + * Memory map description + */ +# define NR_BANKS 8 + +struct membank { + unsigned long start; + unsigned long size; + unsigned int highmem; +}; + +struct meminfo { + int nr_banks; + struct membank bank[NR_BANKS]; +}; + +extern struct meminfo meminfo; + +#define for_each_bank(iter, mi) \ + for (iter = 0; iter < (mi)->nr_banks; iter++) + +#define bank_pfn_start(bank) __phys_to_pfn((bank)->start) +#define bank_pfn_end(bank) __phys_to_pfn((bank)->start + (bank)->size) +#define bank_pfn_size(bank) ((bank)->size >> PAGE_SHIFT) +#define bank_phys_start(bank) ((bank)->start) +#define bank_phys_end(bank) ((bank)->start + (bank)->size) +#define bank_phys_size(bank) ((bank)->size) + +extern void uc32_memblock_init(struct meminfo *); + +#endif |