5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
25 lines
567 B
C
25 lines
567 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#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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