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sh: establish PMB mappings for NUMA nodes.

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In the case of NUMA emulation when in range PPNs are being used for
secondary nodes, we need to make sure that the PMB has a mapping for it
before setting up the pgdat. This prevents the MMU from resetting.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-03-03 13:16:31 +09:00
parent a1042aa248
commit 09e1172317
2 changed files with 4 additions and 2 deletions
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3
arch/sh/kernel/setup.c
View File

@ -443,7 +443,7 @@ void __init setup_arch(char **cmdline_p)
nodes_clear(node_online_map);
/* Setup bootmem with available RAM */
pmb_init();
lmb_init();
setup_memory();
sparse_init();
@ -452,7 +452,6 @@ void __init setup_arch(char **cmdline_p)
conswitchp = &dummy_con;
#endif
paging_init();
pmb_init();
ioremap_fixed_init();

3
arch/sh/mm/numa.c
View File

@ -74,6 +74,9 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
start_pfn = start >> PAGE_SHIFT;
end_pfn = end >> PAGE_SHIFT;
pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
PAGE_KERNEL);
lmb_add(start, end - start);
__add_active_range(nid, start_pfn, end_pfn);