diff options
Diffstat (limited to 'arch/mips/mm/init.c')
| -rw-r--r-- | arch/mips/mm/init.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index fb427dbf..5257f7b 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -341,7 +341,6 @@ static int __init page_is_ram(unsigned long pagenr) void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES] = { 0, }; - unsigned long max_dma, low; #ifndef CONFIG_FLATMEM unsigned long zholes_size[MAX_NR_ZONES] = { 0, }; unsigned long i, j, pfn; @@ -354,19 +353,19 @@ void __init paging_init(void) #endif kmap_coherent_init(); - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - low = max_low_pfn; - #ifdef CONFIG_ISA - if (low < max_dma) - zones_size[ZONE_DMA] = low; - else { - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = low - max_dma; - } -#else - zones_size[ZONE_DMA] = low; + if (max_low_pfn >= MAX_DMA_PFN) + if (min_low_pfn >= MAX_DMA_PFN) { + zones_size[ZONE_DMA] = 0; + zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn; + } else { + zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn; + zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN; + } + else #endif + zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn; + #ifdef CONFIG_HIGHMEM zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn; |