/* * Copyright (C) 2012 Regents of the University of California * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, version 2. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _ASM_RISCV_PGTABLE_64_H #define _ASM_RISCV_PGTABLE_64_H #include <linux/const.h> #define PGDIR_SHIFT 30 /* Size of region mapped by a page global directory */ #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE - 1)) #define PMD_SHIFT 21 /* Size of region mapped by a page middle directory */ #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE - 1)) /* Page Middle Directory entry */ typedef struct { unsigned long pmd; } pmd_t; #define pmd_val(x) ((x).pmd) #define __pmd(x) ((pmd_t) { (x) }) #define PTRS_PER_PMD (PAGE_SIZE / sizeof(pmd_t)) static inline int pud_present(pud_t pud) { return (pud_val(pud) & _PAGE_PRESENT); } static inline int pud_none(pud_t pud) { return (pud_val(pud) == 0); } static inline int pud_bad(pud_t pud) { return !pud_present(pud); } static inline void set_pud(pud_t *pudp, pud_t pud) { *pudp = pud; } static inline void pud_clear(pud_t *pudp) { set_pud(pudp, __pud(0)); } static inline unsigned long pud_page_vaddr(pud_t pud) { return (unsigned long)pfn_to_virt(pud_val(pud) >> _PAGE_PFN_SHIFT); } #define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)) static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) { return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(addr); } static inline pmd_t pfn_pmd(unsigned long pfn, pgprot_t prot) { return __pmd((pfn << _PAGE_PFN_SHIFT) | pgprot_val(prot)); } #define pmd_ERROR(e) \ pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e)) #endif /* _ASM_RISCV_PGTABLE_64_H */
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Kbuild | File | 1.37 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 176 B | 0644 |
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asm.h | File | 1.78 KB | 0644 |
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atomic.h | File | 11.31 KB | 0644 |
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barrier.h | File | 2.59 KB | 0644 |
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bitops.h | File | 6.23 KB | 0644 |
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bug.h | File | 2.12 KB | 0644 |
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cache.h | File | 745 B | 0644 |
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cacheflush.h | File | 1.7 KB | 0644 |
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cmpxchg.h | File | 3.35 KB | 0644 |
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compat.h | File | 924 B | 0644 |
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csr.h | File | 3.8 KB | 0644 |
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current.h | File | 1.27 KB | 0644 |
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delay.h | File | 881 B | 0644 |
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dma-mapping.h | File | 1.19 KB | 0644 |
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elf.h | File | 2.3 KB | 0644 |
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fence.h | File | 279 B | 0644 |
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hwcap.h | File | 1013 B | 0644 |
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io.h | File | 11.81 KB | 0644 |
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irq.h | File | 841 B | 0644 |
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irqflags.h | File | 1.54 KB | 0644 |
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kprobes.h | File | 679 B | 0644 |
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linkage.h | File | 677 B | 0644 |
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mmu.h | File | 829 B | 0644 |
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mmu_context.h | File | 3.14 KB | 0644 |
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page.h | File | 3.76 KB | 0644 |
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pci.h | File | 1.16 KB | 0644 |
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pgalloc.h | File | 3.06 KB | 0644 |
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pgtable-32.h | File | 870 B | 0644 |
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pgtable-64.h | File | 2.08 KB | 0644 |
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pgtable-bits.h | File | 1.81 KB | 0644 |
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pgtable.h | File | 11.17 KB | 0644 |
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processor.h | File | 2.44 KB | 0644 |
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ptrace.h | File | 2.69 KB | 0644 |
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sbi.h | File | 2.6 KB | 0644 |
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smp.h | File | 1.59 KB | 0644 |
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spinlock.h | File | 2.85 KB | 0644 |
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spinlock_types.h | File | 906 B | 0644 |
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string.h | File | 838 B | 0644 |
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switch_to.h | File | 1.86 KB | 0644 |
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syscall.h | File | 2.59 KB | 0644 |
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thread_info.h | File | 3.11 KB | 0644 |
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timex.h | File | 1.29 KB | 0644 |
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tlb.h | File | 717 B | 0644 |
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tlbflush.h | File | 1.83 KB | 0644 |
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uaccess.h | File | 14 KB | 0644 |
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unistd.h | File | 638 B | 0644 |
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vdso.h | File | 1.49 KB | 0644 |
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word-at-a-time.h | File | 1.48 KB | 0644 |
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