__GFP_DMA32
BUG_ON(mapping_gfp_constraint(mapping, __GFP_DMA32) &&
if (gfp_mask & __GFP_DMA32)
gfp |= __GFP_DMA32;
GEM_BUG_ON(gfp & __GFP_DMA32 && next_pfn >= 0x00100000UL);
mask |= __GFP_DMA32;
#define GFP_DMA32 __GFP_DMA32