/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _MCF_PGTABLE_H #define _MCF_PGTABLE_H #include <asm/mcfmmu.h> #include <asm/page.h> /* * MMUDR bits, in proper place. We write these directly into the MMUDR * after masking from the pte. */ #define CF_PAGE_LOCKED MMUDR_LK /* 0x00000002 */ #define CF_PAGE_EXEC MMUDR_X /* 0x00000004 */ #define CF_PAGE_WRITABLE MMUDR_W /* 0x00000008 */ #define CF_PAGE_READABLE MMUDR_R /* 0x00000010 */ #define CF_PAGE_SYSTEM MMUDR_SP /* 0x00000020 */ #define CF_PAGE_COPYBACK MMUDR_CM_CCB /* 0x00000040 */ #define CF_PAGE_NOCACHE MMUDR_CM_NCP /* 0x00000080 */ #define CF_CACHEMASK (~MMUDR_CM_CCB) #define CF_PAGE_MMUDR_MASK 0x000000fe #define _PAGE_NOCACHE030 CF_PAGE_NOCACHE /* * MMUTR bits, need shifting down. */ #define CF_PAGE_MMUTR_MASK 0x00000c00 #define CF_PAGE_MMUTR_SHIFT 10 #define CF_PAGE_VALID (MMUTR_V << CF_PAGE_MMUTR_SHIFT) #define CF_PAGE_SHARED (MMUTR_SG << CF_PAGE_MMUTR_SHIFT) /* * Fake bits, not implemented in CF, will get masked out before * hitting hardware. */ #define CF_PAGE_DIRTY 0x00000001 #define CF_PAGE_ACCESSED 0x00001000 #define _PAGE_CACHE040 0x020 /* 68040 cache mode, cachable, copyback */ #define _PAGE_NOCACHE_S 0x040 /* 68040 no-cache mode, serialized */ #define _PAGE_NOCACHE 0x060 /* 68040 cache mode, non-serialized */ #define _PAGE_CACHE040W 0x000 /* 68040 cache mode, cachable, write-through */ #define _DESCTYPE_MASK 0x003 #define _CACHEMASK040 (~0x060) #define _PAGE_GLOBAL040 0x400 /* 68040 global bit, used for kva descs */ /* * Externally used page protection values. */ #define _PAGE_PRESENT (CF_PAGE_VALID) #define _PAGE_ACCESSED (CF_PAGE_ACCESSED) #define _PAGE_DIRTY (CF_PAGE_DIRTY) #define _PAGE_READWRITE (CF_PAGE_READABLE \ | CF_PAGE_WRITABLE \ | CF_PAGE_SYSTEM \ | CF_PAGE_SHARED) /* * Compound page protection values. */ #define PAGE_NONE __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED) #define PAGE_SHARED __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_SHARED) #define PAGE_INIT __pgprot(CF_PAGE_VALID \ | CF_PAGE_READABLE \ | CF_PAGE_WRITABLE \ | CF_PAGE_EXEC \ | CF_PAGE_SYSTEM) #define PAGE_KERNEL __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_WRITABLE \ | CF_PAGE_EXEC \ | CF_PAGE_SYSTEM \ | CF_PAGE_SHARED) #define PAGE_COPY __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_DIRTY) /* * Page protections for initialising protection_map. See mm/mmap.c * for use. In general, the bit positions are xwr, and P-items are * private, the S-items are shared. */ #define __P000 PAGE_NONE #define __P001 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE) #define __P010 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_WRITABLE) #define __P011 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_WRITABLE) #define __P100 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_EXEC) #define __P101 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_EXEC) #define __P110 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_WRITABLE \ | CF_PAGE_EXEC) #define __P111 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_WRITABLE \ | CF_PAGE_EXEC) #define __S000 PAGE_NONE #define __S001 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE) #define __S010 PAGE_SHARED #define __S011 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_SHARED \ | CF_PAGE_READABLE) #define __S100 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_EXEC) #define __S101 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_READABLE \ | CF_PAGE_EXEC) #define __S110 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_SHARED \ | CF_PAGE_EXEC) #define __S111 __pgprot(CF_PAGE_VALID \ | CF_PAGE_ACCESSED \ | CF_PAGE_SHARED \ | CF_PAGE_READABLE \ | CF_PAGE_EXEC) #define PTE_MASK PAGE_MASK #define CF_PAGE_CHG_MASK (PTE_MASK | CF_PAGE_ACCESSED | CF_PAGE_DIRTY) #ifndef __ASSEMBLY__ /* * Conversion functions: convert a page and protection to a page entry, * and a page entry and page directory to the page they refer to. */ #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_val(pte) = (pte_val(pte) & CF_PAGE_CHG_MASK) | pgprot_val(newprot); return pte; } #define pmd_set(pmdp, ptep) do {} while (0) static inline void pgd_set(pgd_t *pgdp, pmd_t *pmdp) { pgd_val(*pgdp) = virt_to_phys(pmdp); } #define __pte_page(pte) ((unsigned long) (pte_val(pte) & PAGE_MASK)) #define __pmd_page(pmd) ((unsigned long) (pmd_val(pmd))) static inline int pte_none(pte_t pte) { return !pte_val(pte); } static inline int pte_present(pte_t pte) { return pte_val(pte) & CF_PAGE_VALID; } static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_val(*ptep) = 0; } #define pte_pagenr(pte) ((__pte_page(pte) - PAGE_OFFSET) >> PAGE_SHIFT) #define pte_page(pte) virt_to_page(__pte_page(pte)) static inline int pmd_none2(pmd_t *pmd) { return !pmd_val(*pmd); } #define pmd_none(pmd) pmd_none2(&(pmd)) static inline int pmd_bad2(pmd_t *pmd) { return 0; } #define pmd_bad(pmd) pmd_bad2(&(pmd)) #define pmd_present(pmd) (!pmd_none2(&(pmd))) static inline void pmd_clear(pmd_t *pmdp) { pmd_val(*pmdp) = 0; } static inline int pgd_none(pgd_t pgd) { return 0; } static inline int pgd_bad(pgd_t pgd) { return 0; } static inline int pgd_present(pgd_t pgd) { return 1; } static inline void pgd_clear(pgd_t *pgdp) {} #define pte_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \ __FILE__, __LINE__, pte_val(e)) #define pmd_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pmd %08lx.\n", \ __FILE__, __LINE__, pmd_val(e)) #define pgd_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \ __FILE__, __LINE__, pgd_val(e)) /* * The following only work if pte_present() is true. * Undefined behaviour if not... * [we have the full set here even if they don't change from m68k] */ static inline int pte_read(pte_t pte) { return pte_val(pte) & CF_PAGE_READABLE; } static inline int pte_write(pte_t pte) { return pte_val(pte) & CF_PAGE_WRITABLE; } static inline int pte_exec(pte_t pte) { return pte_val(pte) & CF_PAGE_EXEC; } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & CF_PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return pte_val(pte) & CF_PAGE_ACCESSED; } static inline int pte_special(pte_t pte) { return 0; } static inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= ~CF_PAGE_WRITABLE; return pte; } static inline pte_t pte_rdprotect(pte_t pte) { pte_val(pte) &= ~CF_PAGE_READABLE; return pte; } static inline pte_t pte_exprotect(pte_t pte) { pte_val(pte) &= ~CF_PAGE_EXEC; return pte; } static inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~CF_PAGE_DIRTY; return pte; } static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~CF_PAGE_ACCESSED; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) |= CF_PAGE_WRITABLE; return pte; } static inline pte_t pte_mkread(pte_t pte) { pte_val(pte) |= CF_PAGE_READABLE; return pte; } static inline pte_t pte_mkexec(pte_t pte) { pte_val(pte) |= CF_PAGE_EXEC; return pte; } static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= CF_PAGE_DIRTY; return pte; } static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= CF_PAGE_ACCESSED; return pte; } static inline pte_t pte_mknocache(pte_t pte) { pte_val(pte) |= 0x80 | (pte_val(pte) & ~0x40); return pte; } static inline pte_t pte_mkcache(pte_t pte) { pte_val(pte) &= ~CF_PAGE_NOCACHE; return pte; } static inline pte_t pte_mkspecial(pte_t pte) { return pte; } #define swapper_pg_dir kernel_pg_dir extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; /* * Find an entry in a pagetable directory. */ #define pgd_index(address) ((address) >> PGDIR_SHIFT) #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) /* * Find an entry in a kernel pagetable directory. */ #define pgd_offset_k(address) pgd_offset(&init_mm, address) /* * Find an entry in the second-level pagetable. */ static inline pmd_t *pmd_offset(pgd_t *pgd, unsigned long address) { return (pmd_t *) pgd; } /* * Find an entry in the third-level pagetable. */ #define __pte_offset(address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ ((pte_t *) __pmd_page(*(dir)) + __pte_offset(address)) /* * Disable caching for page at given kernel virtual address. */ static inline void nocache_page(void *vaddr) { pgd_t *dir; pmd_t *pmdp; pte_t *ptep; unsigned long addr = (unsigned long) vaddr; dir = pgd_offset_k(addr); pmdp = pmd_offset(dir, addr); ptep = pte_offset_kernel(pmdp, addr); *ptep = pte_mknocache(*ptep); } /* * Enable caching for page at given kernel virtual address. */ static inline void cache_page(void *vaddr) { pgd_t *dir; pmd_t *pmdp; pte_t *ptep; unsigned long addr = (unsigned long) vaddr; dir = pgd_offset_k(addr); pmdp = pmd_offset(dir, addr); ptep = pte_offset_kernel(pmdp, addr); *ptep = pte_mkcache(*ptep); } /* * Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e)) */ #define __swp_type(x) ((x).val & 0xFF) #define __swp_offset(x) ((x).val >> 11) #define __swp_entry(typ, off) ((swp_entry_t) { (typ) | \ (off << 11) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) (__pte((x).val)) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) #define pte_offset_map(pmdp, addr) ((pte_t *)__pmd_page(*pmdp) + \ __pte_offset(addr)) #define pte_unmap(pte) ((void) 0) #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) #define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) #endif /* !__ASSEMBLY__ */ #endif /* _MCF_PGTABLE_H */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 599 B | 0644 |
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MC68328.h | File | 37.82 KB | 0644 |
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MC68EZ328.h | File | 37.74 KB | 0644 |
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MC68VZ328.h | File | 41.02 KB | 0644 |
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a.out-core.h | File | 1.98 KB | 0644 |
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adb_iop.h | File | 1.09 KB | 0644 |
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amigahw.h | File | 10.49 KB | 0644 |
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amigaints.h | File | 3.5 KB | 0644 |
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amigayle.h | File | 3.19 KB | 0644 |
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amipcmcia.h | File | 2.51 KB | 0644 |
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apollohw.h | File | 2.35 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 211 B | 0644 |
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atafd.h | File | 300 B | 0644 |
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atafdreg.h | File | 2.68 KB | 0644 |
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atari_joystick.h | File | 457 B | 0644 |
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atari_stdma.h | File | 514 B | 0644 |
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atari_stram.h | File | 528 B | 0644 |
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atarihw.h | File | 20.3 KB | 0644 |
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atariints.h | File | 5.56 KB | 0644 |
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atarikb.h | File | 1.4 KB | 0644 |
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atomic.h | File | 4.86 KB | 0644 |
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bitops.h | File | 12.19 KB | 0644 |
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blinken.h | File | 641 B | 0644 |
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bootinfo.h | File | 783 B | 0644 |
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bootstd.h | File | 4.64 KB | 0644 |
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bug.h | File | 659 B | 0644 |
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bugs.h | File | 369 B | 0644 |
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bvme6000hw.h | File | 3.45 KB | 0644 |
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cache.h | File | 296 B | 0644 |
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cacheflush.h | File | 133 B | 0644 |
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cacheflush_mm.h | File | 6.92 KB | 0644 |
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cacheflush_no.h | File | 2.61 KB | 0644 |
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checksum.h | File | 3.4 KB | 0644 |
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cmpxchg.h | File | 3.34 KB | 0644 |
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coldfire.h | File | 1.61 KB | 0644 |
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contregs.h | File | 3.31 KB | 0644 |
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current.h | File | 580 B | 0644 |
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delay.h | File | 3.43 KB | 0644 |
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div64.h | File | 858 B | 0644 |
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dma-mapping.h | File | 291 B | 0644 |
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dma.h | File | 16.65 KB | 0644 |
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dsp56k.h | File | 1.24 KB | 0644 |
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dvma.h | File | 9.67 KB | 0644 |
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elf.h | File | 3.07 KB | 0644 |
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entry.h | File | 5.76 KB | 0644 |
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export.h | File | 74 B | 0644 |
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fb.h | File | 921 B | 0644 |
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fbio.h | File | 9.87 KB | 0644 |
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flat.h | File | 1.02 KB | 0644 |
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floppy.h | File | 5.06 KB | 0644 |
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fpu.h | File | 535 B | 0644 |
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ftrace.h | File | 12 B | 0644 |
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gpio.h | File | 2.64 KB | 0644 |
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hardirq.h | File | 594 B | 0644 |
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hash.h | File | 2.07 KB | 0644 |
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hp300hw.h | File | 186 B | 0644 |
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hwtest.h | File | 467 B | 0644 |
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ide.h | File | 1.67 KB | 0644 |
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idprom.h | File | 725 B | 0644 |
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intersil.h | File | 1.11 KB | 0644 |
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io.h | File | 383 B | 0644 |
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io_mm.h | File | 16.19 KB | 0644 |
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io_no.h | File | 5.26 KB | 0644 |
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irq.h | File | 2.57 KB | 0644 |
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irqflags.h | File | 1.61 KB | 0644 |
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kexec.h | File | 732 B | 0644 |
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linkage.h | File | 1.55 KB | 0644 |
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m5206sim.h | File | 6.4 KB | 0644 |
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m520xsim.h | File | 7.15 KB | 0644 |
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m523xsim.h | File | 7.7 KB | 0644 |
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m525xsim.h | File | 10.57 KB | 0644 |
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m5272sim.h | File | 6.05 KB | 0644 |
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m527xsim.h | File | 13.51 KB | 0644 |
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m528xsim.h | File | 9.37 KB | 0644 |
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m52xxacr.h | File | 3.57 KB | 0644 |
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m5307sim.h | File | 7.52 KB | 0644 |
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m53xxacr.h | File | 3.6 KB | 0644 |
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m53xxsim.h | File | 53.97 KB | 0644 |
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m5407sim.h | File | 6.14 KB | 0644 |
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m5441xsim.h | File | 8.5 KB | 0644 |
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m54xxacr.h | File | 4.82 KB | 0644 |
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m54xxgpt.h | File | 3.66 KB | 0644 |
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m54xxpci.h | File | 6.13 KB | 0644 |
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m54xxsim.h | File | 3.8 KB | 0644 |
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mac_asc.h | File | 520 B | 0644 |
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mac_baboon.h | File | 999 B | 0644 |
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mac_iop.h | File | 5.37 KB | 0644 |
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mac_oss.h | File | 1.83 KB | 0644 |
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mac_psc.h | File | 7.25 KB | 0644 |
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mac_via.h | File | 11.44 KB | 0644 |
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machdep.h | File | 1.34 KB | 0644 |
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machines.h | File | 3.13 KB | 0644 |
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machw.h | File | 588 B | 0644 |
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macintosh.h | File | 2.02 KB | 0644 |
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macints.h | File | 3.28 KB | 0644 |
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math-emu.h | File | 6.74 KB | 0644 |
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mc146818rtc.h | File | 598 B | 0644 |
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mcf8390.h | File | 3.75 KB | 0644 |
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mcf_pgalloc.h | File | 2.37 KB | 0644 |
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mcf_pgtable.h | File | 9.89 KB | 0644 |
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mcfclk.h | File | 1.01 KB | 0644 |
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mcfdma.h | File | 6.51 KB | 0644 |
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mcfgpio.h | File | 8.48 KB | 0644 |
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mcfintc.h | File | 3.09 KB | 0644 |
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mcfmmu.h | File | 3.67 KB | 0644 |
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mcfpit.h | File | 2.22 KB | 0644 |
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mcfqspi.h | File | 1.82 KB | 0644 |
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mcfsim.h | File | 1.5 KB | 0644 |
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mcfslt.h | File | 1.21 KB | 0644 |
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mcftimer.h | File | 2.3 KB | 0644 |
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mcfuart.h | File | 6.91 KB | 0644 |
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mcfwdebug.h | File | 4.99 KB | 0644 |
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mmu.h | File | 243 B | 0644 |
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mmu_context.h | File | 7.2 KB | 0644 |
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mmzone.h | File | 264 B | 0644 |
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module.h | File | 847 B | 0644 |
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motorola_pgalloc.h | File | 2.26 KB | 0644 |
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motorola_pgtable.h | File | 9.2 KB | 0644 |
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movs.h | File | 1.44 KB | 0644 |
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mvme147hw.h | File | 2.81 KB | 0644 |
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mvme16xhw.h | File | 2.16 KB | 0644 |
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natfeat.h | File | 533 B | 0644 |
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nettel.h | File | 2.95 KB | 0644 |
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nubus.h | File | 1.21 KB | 0644 |
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openprom.h | File | 7.98 KB | 0644 |
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oplib.h | File | 9.54 KB | 0644 |
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page.h | File | 1.47 KB | 0644 |
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page_mm.h | File | 4.06 KB | 0644 |
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page_no.h | File | 1.28 KB | 0644 |
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page_offset.h | File | 256 B | 0644 |
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parport.h | File | 837 B | 0644 |
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pci.h | File | 458 B | 0644 |
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pgalloc.h | File | 444 B | 0644 |
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pgtable.h | File | 127 B | 0644 |
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pgtable_mm.h | File | 4.84 KB | 0644 |
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pgtable_no.h | File | 1.57 KB | 0644 |
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processor.h | File | 3.59 KB | 0644 |
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ptrace.h | File | 643 B | 0644 |
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q40_master.h | File | 2.28 KB | 0644 |
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q40ints.h | File | 749 B | 0644 |
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quicc_simple.h | File | 1.79 KB | 0644 |
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raw_io.h | File | 11.41 KB | 0644 |
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segment.h | File | 1.42 KB | 0644 |
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serial.h | File | 1.14 KB | 0644 |
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setup.h | File | 9.25 KB | 0644 |
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signal.h | File | 1.34 KB | 0644 |
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smp.h | File | 32 B | 0644 |
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string.h | File | 1.68 KB | 0644 |
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sun3-head.h | File | 353 B | 0644 |
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sun3_pgalloc.h | File | 2.26 KB | 0644 |
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sun3_pgtable.h | File | 7.65 KB | 0644 |
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sun3ints.h | File | 989 B | 0644 |
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sun3mmu.h | File | 4.91 KB | 0644 |
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sun3x.h | File | 868 B | 0644 |
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sun3xflop.h | File | 5.62 KB | 0644 |
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sun3xprom.h | File | 1.31 KB | 0644 |
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switch_to.h | File | 1.51 KB | 0644 |
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thread_info.h | File | 2.02 KB | 0644 |
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timex.h | File | 974 B | 0644 |
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tlb.h | File | 486 B | 0644 |
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tlbflush.h | File | 5.95 KB | 0644 |
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traps.h | File | 8.33 KB | 0644 |
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uaccess.h | File | 152 B | 0644 |
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uaccess_mm.h | File | 10.31 KB | 0644 |
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uaccess_no.h | File | 3.69 KB | 0644 |
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ucontext.h | File | 570 B | 0644 |
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unaligned.h | File | 600 B | 0644 |
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unistd.h | File | 952 B | 0644 |
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user.h | File | 3.78 KB | 0644 |
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vga.h | File | 651 B | 0644 |
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virtconvert.h | File | 947 B | 0644 |
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zorro.h | File | 1.17 KB | 0644 |
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