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[PATCH] Have Power use add_active_range() and free_area_init_nodes()

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Size zones and holes in an architecture independent manner for Power.

[[email protected]: build fix]
Signed-off-by: Mel Gorman <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Andy Whitcroft <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: "Keith Mannthey" <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Yasunori Goto <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Mel Gorman 2006-09-27 01:49:49 -07:00 • committed by Linus Torvalds
commit c67c3cb4c9
5 changed files with 52 additions and 191 deletions
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3
arch/ppc/Kconfig
View file

@ -953,6 +953,9 @@ config NR_CPUS
config HIGHMEM
bool "High memory support"
config ARCH_POPULATES_NODE_MAP
def_bool y
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"

23
arch/ppc/mm/init.c
View file

@ -358,8 +358,8 @@ void __init do_init_bootmem(void)
*/
void __init paging_init(void)
{
unsigned long zones_size[MAX_NR_ZONES], i;
unsigned long start_pfn, end_pfn;
unsigned long max_zone_pfns[MAX_NR_ZONES];
#ifdef CONFIG_HIGHMEM
map_page(PKMAP_BASE, 0, 0); /* XXX gross */
pkmap_page_table = pte_offset_kernel(pmd_offset(pgd_offset_k
@ -369,19 +369,18 @@ void __init paging_init(void)
(KMAP_FIX_BEGIN), KMAP_FIX_BEGIN), KMAP_FIX_BEGIN);
kmap_prot = PAGE_KERNEL;
#endif /* CONFIG_HIGHMEM */
/*
* All pages are DMA-able so we put them all in the DMA zone.
*/
zones_size[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
for (i = 1; i < MAX_NR_ZONES; i++)
zones_size[i] = 0;
/* All pages are DMA-able so we put them all in the DMA zone. */
start_pfn = __pa(PAGE_OFFSET) >> PAGE_SHIFT;
end_pfn = start_pfn + (total_memory >> PAGE_SHIFT);
add_active_range(0, start_pfn, end_pfn);
#ifdef CONFIG_HIGHMEM
zones_size[ZONE_HIGHMEM] = (total_memory - total_lowmem) >> PAGE_SHIFT;
max_zone_pfns[0] = total_lowmem >> PAGE_SHIFT;
max_zone_pfns[1] = total_memory >> PAGE_SHIFT;
#else
max_zone_pfns[0] = total_memory >> PAGE_SHIFT;
#endif /* CONFIG_HIGHMEM */
free_area_init(zones_size);
free_area_init_nodes(max_zone_pfns);
}
void __init mem_init(void)