X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sparc%2Fpgtable.h;h=4f0a5ba0d6a033cf9c8e0923f343556f550914fa;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=abe6f197d43b7122c03bc241424377bfcb688d90;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index abe6f197d..4f0a5ba0d 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -9,7 +9,8 @@ * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ -#include +#include + #include #include #include @@ -21,7 +22,6 @@ #include #include #include -#include #include #include @@ -33,71 +33,10 @@ struct page; extern void load_mmu(void); extern unsigned long calc_highpages(void); -/* Routines for data transfer buffers. */ -BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long) -BTFIXUPDEF_CALL(void, mmu_unlockarea, char *, unsigned long) - -#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len) -#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len) - -/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */ -BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, char *, unsigned long, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_get_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_release_scsi_one, __u32, unsigned long, struct sbus_bus *sbus) -BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct scatterlist *, int, struct sbus_bus *sbus) - -#define mmu_get_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_get_scsi_one)(vaddr,len,sbus) -#define mmu_get_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_get_scsi_sgl)(sg,sz,sbus) -#define mmu_release_scsi_one(vaddr,len,sbus) BTFIXUP_CALL(mmu_release_scsi_one)(vaddr,len,sbus) -#define mmu_release_scsi_sgl(sg,sz,sbus) BTFIXUP_CALL(mmu_release_scsi_sgl)(sg,sz,sbus) - -/* - * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep. - * - * The mmu_map_dma_area establishes two mappings in one go. - * These mappings point to pages normally mapped at 'va' (linear address). - * First mapping is for CPU visible address at 'a', uncached. - * This is an alias, but it works because it is an uncached mapping. - * Second mapping is for device visible address, or "bus" address. - * The bus address is returned at '*pba'. - * - * These functions seem distinct, but are hard to split. On sun4c, - * at least for now, 'a' is equal to bus address, and retured in *pba. - * On sun4m, page attributes depend on the CPU type, so we have to - * know if we are mapping RAM or I/O, so it has to be an additional argument - * to a separate mapping function for CPU visible mappings. - */ -BTFIXUPDEF_CALL(int, mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len) -BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa) -BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, unsigned long busa, int len) - -#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len) -#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len) -#define mmu_translate_dvma(ba) BTFIXUP_CALL(mmu_translate_dvma)(ba) - -/* - */ -BTFIXUPDEF_SIMM13(pmd_shift) -BTFIXUPDEF_SETHI(pmd_size) -BTFIXUPDEF_SETHI(pmd_mask) - -extern unsigned int pmd_align(unsigned int addr) __attribute_const__; -extern __inline__ unsigned int pmd_align(unsigned int addr) -{ - return ((addr + ~BTFIXUP_SETHI(pmd_mask)) & BTFIXUP_SETHI(pmd_mask)); -} - BTFIXUPDEF_SIMM13(pgdir_shift) BTFIXUPDEF_SETHI(pgdir_size) BTFIXUPDEF_SETHI(pgdir_mask) -extern unsigned int pgdir_align(unsigned int addr) __attribute_const__; -extern __inline__ unsigned int pgdir_align(unsigned int addr) -{ - return ((addr + ~BTFIXUP_SETHI(pgdir_mask)) & BTFIXUP_SETHI(pgdir_mask)); -} - -BTFIXUPDEF_SIMM13(ptrs_per_pte) BTFIXUPDEF_SIMM13(ptrs_per_pmd) BTFIXUPDEF_SIMM13(ptrs_per_pgd) BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) @@ -112,19 +51,19 @@ BTFIXUPDEF_INT(page_copy) BTFIXUPDEF_INT(page_readonly) BTFIXUPDEF_INT(page_kernel) -#define PMD_SHIFT BTFIXUP_SIMM13(pmd_shift) -#define PMD_SIZE BTFIXUP_SETHI(pmd_size) -#define PMD_MASK BTFIXUP_SETHI(pmd_mask) -#define PMD_ALIGN(addr) pmd_align(addr) +#define PMD_SHIFT SUN4C_PMD_SHIFT +#define PMD_SIZE (1UL << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) +#define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK) #define PGDIR_SHIFT BTFIXUP_SIMM13(pgdir_shift) #define PGDIR_SIZE BTFIXUP_SETHI(pgdir_size) #define PGDIR_MASK BTFIXUP_SETHI(pgdir_mask) -#define PGDIR_ALIGN pgdir_align(addr) -#define PTRS_PER_PTE BTFIXUP_SIMM13(ptrs_per_pte) +#define PTRS_PER_PTE 1024 #define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd) #define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd) #define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd) -#define FIRST_USER_PGD_NR 0 +#define FIRST_USER_ADDRESS 0 +#define PTE_SIZE (PTRS_PER_PTE*4) #define PAGE_NONE __pgprot(BTFIXUP_INT(page_none)) #define PAGE_SHARED __pgprot(BTFIXUP_INT(page_shared)) @@ -142,6 +81,8 @@ extern unsigned long page_kernel; /* Top-level page directory */ extern pgd_t swapper_pg_dir[1024]; +extern void paging_init(void); + /* Page table for 0-4MB for everybody, on the Sparc this * holds the same as on the i386. */ @@ -202,28 +143,30 @@ extern unsigned long empty_zero_page; /* */ BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t) -BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page, pgd_t) +BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t) #define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd) -#define pgd_page(pgd) BTFIXUP_CALL(pgd_page)(pgd) +#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd) BTFIXUPDEF_SETHI(none_mask) BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t) BTFIXUPDEF_CALL(void, pte_clear, pte_t *) +BTFIXUPDEF_CALL(int, pte_read, pte_t) -extern __inline__ int pte_none(pte_t pte) +static inline int pte_none(pte_t pte) { return !(pte_val(pte) & ~BTFIXUP_SETHI(none_mask)); } #define pte_present(pte) BTFIXUP_CALL(pte_present)(pte) -#define pte_clear(pte) BTFIXUP_CALL(pte_clear)(pte) +#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte) +#define pte_read(pte) BTFIXUP_CALL(pte_read)(pte) BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t) BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t) BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *) -extern __inline__ int pmd_none(pmd_t pmd) +static inline int pmd_none(pmd_t pmd) { return !(pmd_val(pmd) & ~BTFIXUP_SETHI(none_mask)); } @@ -250,20 +193,20 @@ BTFIXUPDEF_HALF(pte_writei) BTFIXUPDEF_HALF(pte_dirtyi) BTFIXUPDEF_HALF(pte_youngi) -extern int pte_write(pte_t pte) __attribute_const__; -extern __inline__ int pte_write(pte_t pte) +static int pte_write(pte_t pte) __attribute_const__; +static inline int pte_write(pte_t pte) { return pte_val(pte) & BTFIXUP_HALF(pte_writei); } -extern int pte_dirty(pte_t pte) __attribute_const__; -extern __inline__ int pte_dirty(pte_t pte) +static int pte_dirty(pte_t pte) __attribute_const__; +static inline int pte_dirty(pte_t pte) { return pte_val(pte) & BTFIXUP_HALF(pte_dirtyi); } -extern int pte_young(pte_t pte) __attribute_const__; -extern __inline__ int pte_young(pte_t pte) +static int pte_young(pte_t pte) __attribute_const__; +static inline int pte_young(pte_t pte) { return pte_val(pte) & BTFIXUP_HALF(pte_youngi); } @@ -273,8 +216,8 @@ extern __inline__ int pte_young(pte_t pte) */ BTFIXUPDEF_HALF(pte_filei) -extern int pte_file(pte_t pte) __attribute_const__; -extern __inline__ int pte_file(pte_t pte) +static int pte_file(pte_t pte) __attribute_const__; +static inline int pte_file(pte_t pte) { return pte_val(pte) & BTFIXUP_HALF(pte_filei); } @@ -285,20 +228,20 @@ BTFIXUPDEF_HALF(pte_wrprotecti) BTFIXUPDEF_HALF(pte_mkcleani) BTFIXUPDEF_HALF(pte_mkoldi) -extern pte_t pte_wrprotect(pte_t pte) __attribute_const__; -extern __inline__ pte_t pte_wrprotect(pte_t pte) +static pte_t pte_wrprotect(pte_t pte) __attribute_const__; +static inline pte_t pte_wrprotect(pte_t pte) { return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_wrprotecti)); } -extern pte_t pte_mkclean(pte_t pte) __attribute_const__; -extern __inline__ pte_t pte_mkclean(pte_t pte) +static pte_t pte_mkclean(pte_t pte) __attribute_const__; +static inline pte_t pte_mkclean(pte_t pte) { return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkcleani)); } -extern pte_t pte_mkold(pte_t pte) __attribute_const__; -extern __inline__ pte_t pte_mkold(pte_t pte) +static pte_t pte_mkold(pte_t pte) __attribute_const__; +static inline pte_t pte_mkold(pte_t pte) { return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkoldi)); } @@ -311,8 +254,6 @@ BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t) #define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte) #define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte) -#define page_pte_prot(page, prot) mk_pte(page, prot) -#define page_pte(page) mk_pte(page, __pgprot(0)) #define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot) BTFIXUPDEF_CALL(unsigned long, pte_pfn, pte_t) @@ -327,15 +268,18 @@ BTFIXUPDEF_CALL_CONST(pte_t, mk_pte, struct page *, pgprot_t) BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t) BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int) +BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t) #define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot) #define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot) #define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space) +#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot) + BTFIXUPDEF_INT(pte_modify_mask) -extern pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__; -extern __inline__ pte_t pte_modify(pte_t pte, pgprot_t newprot) +static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__; +static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { return __pte((pte_val(pte) & BTFIXUP_INT(pte_modify_mask)) | pgprot_val(newprot)); @@ -367,9 +311,6 @@ BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long) #define pte_unmap(pte) do{}while(0) #define pte_unmap_nested(pte) do{}while(0) -/* The permissions for pgprot_val to make a page mapped on the obio space */ -extern unsigned int pg_iobits; - /* Certain architectures need to do special things when pte's * within a page table are directly modified. Thus, the following * hook is made available. @@ -378,6 +319,7 @@ extern unsigned int pg_iobits; BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t) #define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) struct seq_file; BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *) @@ -441,13 +383,13 @@ extern struct ctx_list ctx_used; /* Head of used contexts list */ #define NO_CONTEXT -1 -extern __inline__ void remove_from_ctx_list(struct ctx_list *entry) +static inline void remove_from_ctx_list(struct ctx_list *entry) { entry->next->prev = entry->prev; entry->prev->next = entry->next; } -extern __inline__ void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry) +static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry) { entry->next = head; (entry->prev = head->prev)->next = entry; @@ -456,7 +398,7 @@ 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 long +static inline unsigned long __get_phys (unsigned long addr) { switch (sparc_cpu_model){ @@ -471,7 +413,7 @@ __get_phys (unsigned long addr) } } -extern __inline__ int +static inline int __get_iospace (unsigned long addr) { switch (sparc_cpu_model){ @@ -492,12 +434,19 @@ extern unsigned long *sparc_valid_addr_bitmap; #define kern_addr_valid(addr) \ (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap)) -extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long to, - unsigned long size, pgprot_t prot, int space); +extern int io_remap_pfn_range(struct vm_area_struct *vma, + unsigned long from, unsigned long pfn, + unsigned long size, pgprot_t prot); -#include +/* + * For sparc32&64, the pfn in io_remap_pfn_range() carries in + * its high 4 bits. These macros/functions put it there or get it from there. + */ +#define MK_IOSPACE_PFN(space, pfn) (pfn | (space << (BITS_PER_LONG - 4))) +#define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) +#define GET_PFN(pfn) (pfn & 0x0fffffffUL) -typedef pte_t *pte_addr_t; +#include #endif /* !(__ASSEMBLY__) */