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sh: sparsemem support.

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This implements basic sparsemem support for SH. Presently this only
uses static sparsemem, and we still permit explicit selection of
flatmem. Those boards that want sparsemem can select it as usual.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2007-05-23 17:48:36 +09:00
committed by Paul Mundt
parent 5900711ad7
commit dfbb904280
4 changed files with 38 additions and 25 deletions
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8
arch/sh/kernel/setup.c
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@ -128,6 +128,7 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
min_low_pfn, max_low_pfn);
add_active_range(0, min_low_pfn, max_low_pfn);
register_bootmem_low_pages();
node_set_online(0);
@ -192,6 +193,7 @@ static void __init setup_memory(void)
*/
start_pfn = PFN_UP(__pa(_end));
setup_bootmem_allocator(start_pfn);
sparse_memory_present_with_active_regions(0);
}
#else
extern void __init setup_memory(void);
@ -250,8 +252,9 @@ void __init setup_arch(char **cmdline_p)
min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
nodes_clear(node_online_map);
/* Setup bootmem with available RAM */
setup_memory();
paging_init();
sparse_init();
#ifdef CONFIG_DUMMY_CONSOLE
@ -261,8 +264,9 @@ void __init setup_arch(char **cmdline_p)
/* Perform the machine specific initialisation */
if (likely(sh_mv.mv_setup))
sh_mv.mv_setup(cmdline_p);
}
paging_init();
}
static const char *cpu_name[] = {
[CPU_SH7206] = "SH7206", [CPU_SH7619] = "SH7619",