diff options
Diffstat (limited to 'arch/sh/include/asm/mmu.h')
| -rw-r--r-- | arch/sh/include/asm/mmu.h | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h index c7426ad9926e..15a05b615ba7 100644 --- a/arch/sh/include/asm/mmu.h +++ b/arch/sh/include/asm/mmu.h @@ -11,7 +11,9 @@ #define PMB_ADDR 0xf6100000 #define PMB_DATA 0xf7100000 -#define PMB_ENTRY_MAX 16 + +#define NR_PMB_ENTRIES 16 + #define PMB_E_MASK 0x0000000f #define PMB_E_SHIFT 8 @@ -25,11 +27,15 @@ #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]; @@ -47,29 +53,30 @@ typedef struct { #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, unsigned long flags); + unsigned long size, pgprot_t prot); void pmb_unmap(unsigned long addr); -int pmb_init(void); +void 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; +} + +#define pmb_unmap(addr) do { } while (0) +#define pmb_init(addr) do { } while (0) + +#ifdef CONFIG_29BIT +#define __in_29bit_mode() (1) +#else +#define __in_29bit_mode() (0) +#endif + +#endif /* CONFIG_PMB */ #endif /* __ASSEMBLY__ */ #endif /* __MMU_H */ |