diff options
| author | Nicolas Pitre <nico@cam.org> | 2008-10-06 13:24:40 -0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-11-28 15:36:44 +0000 |
| commit | 4b5f32cee0cce7b9783ced5cbeabd17aa53c51fb (patch) | |
| tree | 95d3f2af07733cf70419ea5c3ae1100be2533197 /arch/arm/mm/init.c | |
| parent | 43ae286b7d4d8c4983bc263ef2e3cccc10dedb2b (diff) | |
[ARM] rationalize memory configuration code some more
Currently there are two instances of struct meminfo: one in
kernel/setup.c marked __initdata, and another in mm/init.c with
permanent storage. Let's keep only the later to directly populate
the permanent version from arm_add_memory().
Also move common validation tests between the MMU and non-MMU cases
into arm_add_memory() to remove some duplication. Protection against
overflowing the membank array is also moved in there in order to cover
the kernel cmdline parsing path as well.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/init.c')
| -rw-r--r-- | arch/arm/mm/init.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 82c4b421798..b43da2479fa 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -64,10 +64,11 @@ static int __init parse_tag_initrd2(const struct tag *tag) __tagtable(ATAG_INITRD2, parse_tag_initrd2); /* - * This is used to pass memory configuration data from paging_init - * to mem_init, and by show_mem() to skip holes in the memory map. + * This keeps memory configuration data used by a couple memory + * initialization functions, as well as show_mem() for the skipping + * of holes in the memory map. It is populated by arm_add_memory(). */ -static struct meminfo meminfo = { 0, }; +struct meminfo meminfo; void show_mem(void) { @@ -331,13 +332,12 @@ static void __init bootmem_free_node(int node, struct meminfo *mi) free_area_init_node(node, zone_size, start_pfn, zhole_size); } -void __init bootmem_init(struct meminfo *mi) +void __init bootmem_init(void) { + struct meminfo *mi = &meminfo; unsigned long memend_pfn = 0; int node, initrd_node; - memcpy(&meminfo, mi, sizeof(meminfo)); - /* * Locate which node contains the ramdisk image, if any. */ |