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These were originally named _nopmd and _pmd to follow their asm-generic counterparts, but we rename them to -2level and -3level for general consistency. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
24 lines
528 B
C
24 lines
528 B
C
#ifndef __ASM_SH_PGTABLE_2LEVEL_H
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#define __ASM_SH_PGTABLE_2LEVEL_H
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#include <asm-generic/pgtable-nopmd.h>
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/*
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* traditional two-level paging structure
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*/
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#define PAGETABLE_LEVELS 2
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/* PTE bits */
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#define PTE_MAGNITUDE 2 /* 32-bit PTEs */
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#define PTE_SHIFT PAGE_SHIFT
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#define PTE_BITS (PTE_SHIFT - PTE_MAGNITUDE)
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/* PGD bits */
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#define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS)
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#define PTRS_PER_PGD (PAGE_SIZE / (1 << PTE_MAGNITUDE))
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#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
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#endif /* __ASM_SH_PGTABLE_2LEVEL_H */
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