diff options
Diffstat (limited to 'arch/arc/include/asm/pgtable.h')
| -rw-r--r-- | arch/arc/include/asm/pgtable.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h new file mode 100644 index 0000000000..4cf45a99fd --- /dev/null +++ b/arch/arc/include/asm/pgtable.h @@ -0,0 +1,34 @@ +/* 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); + +/* to cope with aliasing VIPT cache */ +#define HAVE_ARCH_UNMAPPED_AREA + +#endif /* __ASSEMBLY__ */ + +#endif |