forked from luck/tmp_suning_uos_patched
b73c806341
Keep the dimensions of the page tables in a separate header file in preparation for allowing a three level page table structure. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
23 lines
493 B
C
23 lines
493 B
C
#ifndef __ASM_SH_PGTABLE_NOPMD_H
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#define __ASM_SH_PGTABLE_NOPMD_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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/* 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_NOPMD_H */
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