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| author | Christoph Lameter <clameter@sgi.com> | 2007-02-10 10:43:11 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-11 19:51:18 +0100 |
| commit | 09ae1f585e9def652cdb1d0484611d4f4dc2d5fd (patch) | |
| tree | d759e739ae0a8ba72f20938d5ac8c19dac76acba /arch/ia64/mm/discontig.c | |
| parent | [PATCH] optional ZONE_DMA: optional ZONE_DMA in the VM (diff) | |
| download | linux-09ae1f585e9def652cdb1d0484611d4f4dc2d5fd.tar.xz linux-09ae1f585e9def652cdb1d0484611d4f4dc2d5fd.zip | |
[PATCH] optional ZONE_DMA: optional ZONE_DMA for ia64
ZONE_DMA less operation for IA64 SGI platform
Disable ZONE_DMA for SGI SN2. All memory is addressable by all devices and we
do not need any special memory pool.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64/mm/discontig.c')
| -rw-r--r-- | arch/ia64/mm/discontig.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 6eae596c509d..16835108bb5b 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -37,7 +37,9 @@ struct early_node_data { unsigned long pernode_size; struct bootmem_data bootmem_data; unsigned long num_physpages; +#ifdef CONFIG_ZONE_DMA unsigned long num_dma_physpages; +#endif unsigned long min_pfn; unsigned long max_pfn; }; @@ -633,9 +635,11 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n unsigned long end = start + len; mem_data[node].num_physpages += len >> PAGE_SHIFT; +#ifdef CONFIG_ZONE_DMA if (start <= __pa(MAX_DMA_ADDRESS)) mem_data[node].num_dma_physpages += (min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT; +#endif start = GRANULEROUNDDOWN(start); start = ORDERROUNDDOWN(start); end = GRANULEROUNDUP(end); @@ -688,7 +692,9 @@ void __init paging_init(void) } memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); +#ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] = max_dma; +#endif max_zone_pfns[ZONE_NORMAL] = max_pfn; free_area_init_nodes(max_zone_pfns); |