| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Greg Ungerer | 876 | 94.29% | 2 | 12.50% |
| David Hildenbrand | 30 | 3.23% | 3 | 18.75% |
| Vineet Gupta | 6 | 0.65% | 1 | 6.25% |
| Linus Torvalds (pre-git) | 5 | 0.54% | 1 | 6.25% |
| Matthew Wilcox | 4 | 0.43% | 1 | 6.25% |
| Mike Rapoport | 2 | 0.22% | 2 | 12.50% |
| Alexander Stein | 1 | 0.11% | 1 | 6.25% |
| Rick Edgecombe | 1 | 0.11% | 1 | 6.25% |
| Kirill A. Shutemov | 1 | 0.11% | 1 | 6.25% |
| Linus Walleij | 1 | 0.11% | 1 | 6.25% |
| Will Deacon | 1 | 0.11% | 1 | 6.25% |
| Greg Kroah-Hartman | 1 | 0.11% | 1 | 6.25% |
| Total | 929 | 16 |
/* 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 */ /* We borrow bit 7 to store the exclusive marker in swap PTEs. */ #define _PAGE_SWP_EXCLUSIVE CF_PAGE_NOCACHE /* * 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) #define PTE_MASK PAGE_MASK #define CF_PAGE_CHG_MASK (PTE_MASK | CF_PAGE_ACCESSED | CF_PAGE_DIRTY) #ifndef __ASSEMBLY__ #define pmd_pgtable(pmd) pfn_to_virt(pmd_val(pmd) >> PAGE_SHIFT) /* * 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) ((void *) (pte_val(pte) & PAGE_MASK)) #define pmd_page_vaddr(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_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; } #define pte_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \ __FILE__, __LINE__, pte_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 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_novma(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; } #define swapper_pg_dir kernel_pg_dir extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; /* * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that * are !pte_none() && !pte_present(). * * Format of swap PTEs: * * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * <------------------ offset -------------> 0 0 0 E <-- type ---> * * E is the exclusive marker that is not stored in swap entries. */ #define __swp_type(x) ((x).val & 0x7f) #define __swp_offset(x) ((x).val >> 11) #define __swp_entry(typ, off) ((swp_entry_t) { ((typ) & 0x7f) | \ (off << 11) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) (__pte((x).val)) static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; } static inline pte_t pte_swp_mkexclusive(pte_t pte) { pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; return pte; } static inline pte_t pte_swp_clear_exclusive(pte_t pte) { pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; return pte; } #define PFN_PTE_SHIFT PAGE_SHIFT #define pmd_pfn(pmd) (pmd_val(pmd) >> PAGE_SHIFT) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) #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 */