| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576 |
- #ifndef __MMU_H
- #define __MMU_H
- /* 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
- struct vm_list_struct *vmlist;
- unsigned long end_brk;
- #endif
- #ifdef CONFIG_BINFMT_ELF_FDPIC
- unsigned long exec_fdpic_loadmap;
- unsigned long interp_fdpic_loadmap;
- #endif
- } mm_context_t;
- /*
- * Privileged Space Mapping Buffer (PMB) definitions
- */
- #define PMB_PASCR 0xff000070
- #define PMB_IRMCR 0xff000078
- #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)
- 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 */
- int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
- unsigned long flags, int *entry);
- int set_pmb_entry(struct pmb_entry *pmbe);
- void clear_pmb_entry(struct pmb_entry *pmbe);
- struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
- unsigned long flags);
- void pmb_free(struct pmb_entry *pmbe);
- long pmb_remap(unsigned long virt, unsigned long phys,
- unsigned long size, unsigned long flags);
- void pmb_unmap(unsigned long addr);
- #endif /* __MMU_H */
|
