Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
Hi all,
Sorry for my mistake that my previous patch series has been screwed up.
So I regenerate a third version and also set up a git tree at:
git://github.com/jiangliu/linux.git mem_init
Any help to review and test are welcomed!
Regards!
Gerry
---
arch/h8300/mm/init.c | 34 ++++++++--------------------------
1 file changed, 8 insertions(+), 26 deletions(-)
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 22fd869..0088f3a 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -121,40 +121,22 @@ 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);
+ pr_debug("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end);
#endif
- 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);
}
--
1.7.9.5
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