diff options
Diffstat (limited to 'include/asm-sparc/pgtable.h')
| -rw-r--r-- | include/asm-sparc/pgtable.h | 55 |
1 files changed, 44 insertions, 11 deletions
diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index 02435d788..8b84e1dce 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -1,4 +1,4 @@ -/* $Id: pgtable.h,v 1.51 1996/10/27 08:55:32 davem Exp $ */ +/* $Id: pgtable.h,v 1.60 1997/04/14 17:05:16 jj Exp $ */ #ifndef _SPARC_PGTABLE_H #define _SPARC_PGTABLE_H @@ -26,10 +26,6 @@ extern void (*quick_kernel_fault)(unsigned long); This procedure can be used until the call to mem_init(). */ extern void *sparc_init_alloc(unsigned long *kbrk, unsigned long size); -/* mmu-specific process creation/cloning/etc hooks. */ -extern void (*mmu_exit_hook)(void); -extern void (*mmu_flush_hook)(void); - /* translate between physical and virtual addresses */ extern unsigned long (*mmu_v2p)(unsigned long); extern unsigned long (*mmu_p2v)(unsigned long); @@ -43,11 +39,11 @@ struct mmu_sglist { char *addr; char *__dont_touch; unsigned int len; - char *dvma_addr; + __u32 dvma_addr; }; -extern char *(*mmu_get_scsi_one)(char *, unsigned long, struct linux_sbus *sbus); +extern __u32 (*mmu_get_scsi_one)(char *, unsigned long, struct linux_sbus *sbus); extern void (*mmu_get_scsi_sgl)(struct mmu_sglist *, int, struct linux_sbus *sbus); -extern void (*mmu_release_scsi_one)(char *, unsigned long, struct linux_sbus *sbus); +extern void (*mmu_release_scsi_one)(__u32, unsigned long, struct linux_sbus *sbus); extern void (*mmu_release_scsi_sgl)(struct mmu_sglist *, int, struct linux_sbus *sbus); extern void (*mmu_map_dma_area)(unsigned long addr, int len); @@ -105,6 +101,9 @@ extern pgd_t swapper_pg_dir[1024]; * holds the same as on the i386. */ extern pte_t pg0[1024]; +extern pte_t pg1[1024]; +extern pte_t pg2[1024]; +extern pte_t pg3[1024]; extern unsigned long ptr_in_current_pgd; @@ -213,6 +212,9 @@ extern void (*pgd_set)(pgd_t *, pmd_t *); extern pte_t (*pte_modify)(pte_t, pgprot_t); +/* to find an entry in a kernel page-table-directory */ +#define pgd_offset_k(address) pgd_offset(&init_mm, address) + /* to find an entry in a page-table-directory */ extern pgd_t * (*pgd_offset)(struct mm_struct *, unsigned long); @@ -272,6 +274,8 @@ extern void (*local_flush_tlb_page)(struct vm_area_struct *, unsigned long addre extern void (*local_flush_page_to_ram)(unsigned long address); +extern void (*local_flush_sig_insns)(struct mm_struct *mm, unsigned long insn_addr); + extern void smp_flush_cache_all(void); extern void smp_flush_cache_mm(struct mm_struct *mm); extern void smp_flush_cache_range(struct mm_struct *mm, @@ -286,6 +290,7 @@ extern void smp_flush_tlb_range(struct mm_struct *mm, unsigned long end); extern void smp_flush_tlb_page(struct vm_area_struct *mm, unsigned long page); extern void smp_flush_page_to_ram(unsigned long page); +extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr); #endif extern void (*flush_cache_all)(void); @@ -301,6 +306,8 @@ extern void (*flush_tlb_page)(struct vm_area_struct *, unsigned long address); extern void (*flush_page_to_ram)(unsigned long page); +extern void (*flush_sig_insns)(struct mm_struct *mm, unsigned long insn_addr); + /* The permissions for pgprot_val to make a page mapped on the obio space */ extern unsigned int pg_iobits; @@ -329,9 +336,9 @@ extern void (*update_mmu_cache)(struct vm_area_struct *vma, unsigned long addres extern int invalid_segment; -#define SWP_TYPE(entry) (((entry)>>2) & 0x7f) -#define SWP_OFFSET(entry) (((entry) >> 9) & 0x7ffff) -#define SWP_ENTRY(type,offset) (((type) << 2) | ((offset) << 9)) +#define SWP_TYPE(entry) (((entry) >> 2) & 0x7f) +#define SWP_OFFSET(entry) (((entry) >> 9) & 0x3ffff) +#define SWP_ENTRY(type,offset) ((((type) & 0x7f) << 2) | (((offset) & 0x3ffff) << 9)) struct ctx_list { struct ctx_list *next; @@ -361,4 +368,30 @@ extern __inline__ void add_to_ctx_list(struct ctx_list *head, struct ctx_list *e #define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry) #define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry) +extern __inline__ unsigned int +__get_phys (unsigned long addr) +{ + switch (sparc_cpu_model){ + case sun4c: + return sun4c_get_pte (addr) << PAGE_SHIFT; + case sun4m: + return ((srmmu_get_pte (addr) & 0xffffff00) << 4); + default: + return 0; + } +} + +extern __inline__ int +__get_iospace (unsigned long addr) +{ + switch (sparc_cpu_model){ + case sun4c: + return -1; /* Don't check iospace on sun4c */ + case sun4m: + return (srmmu_get_pte (addr) >> 28); + default: + return -1; + } +} + #endif /* !(_SPARC_PGTABLE_H) */ |