1d2912cb1SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 25dda4dc5SVineet Gupta /* 35dda4dc5SVineet Gupta * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 45dda4dc5SVineet Gupta */ 55dda4dc5SVineet Gupta 65dda4dc5SVineet Gupta #ifndef _ASM_ARC_PGTABLE_H 75dda4dc5SVineet Gupta #define _ASM_ARC_PGTABLE_H 85dda4dc5SVineet Gupta 9fe6ba88bSMasahiro Yamada #include <linux/bits.h> 10*fe6cb7b0SVineet Gupta 11*fe6cb7b0SVineet Gupta #include <asm/pgtable-levels.h> 12*fe6cb7b0SVineet Gupta #include <asm/pgtable-bits-arcv2.h> 13868a6530SVineet Gupta #include <asm/page.h> 14288ff7deSVineet Gupta #include <asm/mmu.h> 155dda4dc5SVineet Gupta 165dda4dc5SVineet Gupta /* 175dda4dc5SVineet Gupta * Number of entries a user land program use. 185dda4dc5SVineet Gupta * TASK_SIZE is the maximum vaddr that can be used by a userland program. 195dda4dc5SVineet Gupta */ 205dda4dc5SVineet Gupta #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) 215dda4dc5SVineet Gupta 225dda4dc5SVineet Gupta #ifndef __ASSEMBLY__ 235dda4dc5SVineet Gupta 245dda4dc5SVineet Gupta extern char empty_zero_page[PAGE_SIZE]; 255dda4dc5SVineet Gupta #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) 265dda4dc5SVineet Gupta 27*fe6cb7b0SVineet Gupta extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); 285dda4dc5SVineet Gupta 295bba49f5SVineet Gupta /* to cope with aliasing VIPT cache */ 305bba49f5SVineet Gupta #define HAVE_ARCH_UNMAPPED_AREA 315bba49f5SVineet Gupta 325dda4dc5SVineet Gupta #endif /* __ASSEMBLY__ */ 335dda4dc5SVineet Gupta 345dda4dc5SVineet Gupta #endif 35