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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
3 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
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4 | */ |
5 | ||
6 | #ifndef _ASM_ARC_PGTABLE_H | |
7 | #define _ASM_ARC_PGTABLE_H | |
8 | ||
fe6ba88b | 9 | #include <linux/bits.h> |
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10 | |
11 | #include <asm/pgtable-levels.h> | |
12 | #include <asm/pgtable-bits-arcv2.h> | |
868a6530 | 13 | #include <asm/page.h> |
288ff7de | 14 | #include <asm/mmu.h> |
5dda4dc5 | 15 | |
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16 | /* |
17 | * Number of entries a user land program use. | |
18 | * TASK_SIZE is the maximum vaddr that can be used by a userland program. | |
19 | */ | |
20 | #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) | |
21 | ||
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22 | #ifndef __ASSEMBLY__ |
23 | ||
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24 | extern char empty_zero_page[PAGE_SIZE]; |
25 | #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) | |
26 | ||
fe6cb7b0 | 27 | extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); |
5dda4dc5 | 28 | |
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29 | /* to cope with aliasing VIPT cache */ |
30 | #define HAVE_ARCH_UNMAPPED_AREA | |
31 | ||
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32 | #endif /* __ASSEMBLY__ */ |
33 | ||
34 | #endif |