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mm/h8300: prepare for removing num_physpages and simplify mem_init() 

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiang Liu 2013-07-03 15:03:56 -07:00 committed by Linus Torvalds
parent 3f2b73c3c3
commit 27a59706e4
1 changed files with 8 additions and 28 deletions
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36
arch/h8300/mm/init.c
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@ -121,40 +121,20 @@ void __init paging_init(void)
void __init mem_init(void)
{
int codek = 0, datak = 0, initk = 0;
/* DAVIDM look at setup memory map generically with reserved area */
unsigned long tmp;
extern unsigned long _ramend, _ramstart;
unsigned long len = &_ramend - &_ramstart;
unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */
unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */
unsigned long codesize = _etext - _stext;
#ifdef DEBUG
printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem);
#endif
pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end);
end_mem &= PAGE_MASK;
high_memory = (void *) end_mem;
start_mem = PAGE_ALIGN(start_mem);
max_mapnr = num_physpages = MAP_NR(high_memory);
high_memory = (void *) (memory_end & PAGE_MASK);
max_mapnr = MAP_NR(high_memory);
/* this will put all low memory onto the freelists */
free_all_bootmem();
codek = (_etext - _stext) >> 10;
datak = (__bss_stop - _sdata) >> 10;
initk = (__init_begin - __init_end) >> 10;
tmp = nr_free_pages() << PAGE_SHIFT;
printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n",
tmp >> 10,
len >> 10,
(rom_length > 0) ? ((rom_length >> 10) - codek) : 0,
rom_length >> 10,
codek,
datak
);
mem_init_print_info(NULL);
if (rom_length > 0 && rom_length > codesize)
pr_info("Memory available: %luK/%luK ROM\n",
(rom_length - codesize) >> 10, rom_length >> 10);
}