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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*/
#ifndef _ASM_ARC_PGTABLE_H
#define _ASM_ARC_PGTABLE_H
#include <linux/bits.h>
#include <asm/pgtable-levels.h>
#include <asm/pgtable-bits-arcv2.h>
#include <asm/page.h>
#include <asm/mmu.h>
/*
* Number of entries a user land program use.
* TASK_SIZE is the maximum vaddr that can be used by a userland program.
*/
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
#ifndef __ASSEMBLY__
extern char empty_zero_page[PAGE_SIZE];
#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE);
/* Macro to mark a page protection as uncacheable */
#define pgprot_noncached(prot) (__pgprot(pgprot_val(prot) & ~_PAGE_CACHEABLE))
extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE);
/* to cope with aliasing VIPT cache */
#define HAVE_ARCH_UNMAPPED_AREA
#endif /* __ASSEMBLY__ */
#endif
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