Lines Matching refs:memory

82 	bool "High memory support"
86 	  If you wish to use more than 256MB of memory with your MMU based
88 	  the memory between 0xC0000000 and 0xD0000000 directly... everything
98 	  The VM uses one page of memory for each page table.  For systems
99 	  with a lot of RAM, this can be wasteful of precious low memory.
100 	  Setting this option will put user-space page tables in high memory.
154 	  prevent userspace accessing the underlying memory directly.
170 	  one there; it will write directly to memory instead.
172 	  Write-Through caching only fetches cachelines from memory on a
173 	  read. Writes always get written directly to memory. If the affected
333 	bool "Reserve DMA coherent memory"
337 	  Many PCI drivers require access to uncached memory for DMA device
344 	  available memory for use in this manner. The memory will then be