#ifndef __MMU_H #define __MMU_H /* * Privileged Space Mapping Buffer (PMB) definitions */ #define PMB_PASCR 0xff000070 #define PMB_IRMCR 0xff000078 #define PASCR_SE 0x80000000 #define PMB_ADDR 0xf6100000 #define PMB_DATA 0xf7100000 #define PMB_ENTRY_MAX 16 #define PMB_E_MASK 0x0000000f #define PMB_E_SHIFT 8 #define PMB_SZ_16M 0x00000000 #define PMB_SZ_64M 0x00000010 #define PMB_SZ_128M 0x00000080 #define PMB_SZ_512M 0x00000090 #define PMB_SZ_MASK PMB_SZ_512M #define PMB_C 0x00000008 #define PMB_WT 0x00000001 #define PMB_UB 0x00000200 #define PMB_V 0x00000100 #define PMB_NO_ENTRY (-1) #ifndef __ASSEMBLY__ /* Default "unsigned long" context */ typedef unsigned long mm_context_id_t[NR_CPUS]; typedef struct { #ifdef CONFIG_MMU mm_context_id_t id; void *vdso; #else unsigned long end_brk; #endif #ifdef CONFIG_BINFMT_ELF_FDPIC unsigned long exec_fdpic_loadmap; unsigned long interp_fdpic_loadmap; #endif } mm_context_t; struct pmb_entry; struct pmb_entry { unsigned long vpn; unsigned long ppn; unsigned long flags; /* * 0 .. NR_PMB_ENTRIES for specific entry selection, or * PMB_NO_ENTRY to search for a free one */ int entry; struct pmb_entry *next; /* Adjacent entry link for contiguous multi-entry mappings */ struct pmb_entry *link; }; /* arch/sh/mm/pmb.c */ long pmb_remap(unsigned long virt, unsigned long phys, unsigned long size, unsigned long flags); void pmb_unmap(unsigned long addr); int pmb_init(void); #endif /* __ASSEMBLY__ */ #endif /* __MMU_H */