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#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_PFN_MASK 0xff000000
#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_CACHE_MASK (PMB_C | PMB_WT | PMB_UB)
#define PMB_V 0x00000100
#define PMB_NO_ENTRY (-1)
#ifndef __ASSEMBLY__
#include <linux/errno.h>
#include <linux/threads.h>
#include <asm/page.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
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;
};
#ifdef CONFIG_PMB
/* arch/sh/mm/pmb.c */
long pmb_remap(unsigned long virt, unsigned long phys,
unsigned long size, pgprot_t prot);
void pmb_unmap(unsigned long addr);
int pmb_init(void);
bool __in_29bit_mode(void);
#else
static inline long pmb_remap(unsigned long virt, unsigned long phys,
unsigned long size, pgprot_t prot)
{
return -EINVAL;
}
static inline void pmb_unmap(unsigned long addr)
{
}
static inline int pmb_init(void)
{
return -ENODEV;
}
#ifdef CONFIG_29BIT
#define __in_29bit_mode() (1)
#else
#define __in_29bit_mode() (0)
#endif
#endif /* CONFIG_PMB */
#endif /* __ASSEMBLY__ */
#endif /* __MMU_H */
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