linux mips架构PHYS_OFFSET、CAC_BASE、HIGHMEM_START、PAGE_OFFSET、virt_to_phys、phys_to_virt、page_to_phys的定义
在include/asm-mips/mach-generic/spaces.h中:#ifndefPHYS_OFFSET#definePHYS_OFFSET _AC(0,UL)#endif#ifdefCONFIG_32BIT#defineCAC_BASE _AC(0x80000000,UL)#defineIO_BASE _AC(0xa0000000,UL)#defineUNCAC_BASE