Lines Matching +full:16 +full:mb

76  * direct mapped segment.  This uses 2MB pages for reduced
119 #define VM_LOWMEM_BOUNDARY	(16 << 20)	/* 16MB ISA DMA limit */
123  * physical address 4G is at least 16M, which amounts to 64GB of physical
129  * An allocation size of 16MB is supported in order to optimize the
131  * at most 8 PDEs, collectively mapping 16MB of physical memory.  By
132  * reducing the number of distinct 16MB "pages" that are used by UMA,
133  * the physical memory allocator reduces the likelihood of both 2MB
134  * page TLB misses and cache misses caused by 2MB page TLB misses.
160  * Needs to be aligned at 2MB superpage boundary.
286 #define	VM_INITIAL_PAGEIN	16
289 #define	ZERO_REGION_SIZE	(2 * 1024 * 1024)	/* 2MB */