/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  arch/arm/include/asm/pgtable-2level-hwdef.h
 *
 *  Copyright (C) 1995-2002 Russell King
 */
#ifndef _ASM_PGTABLE_2LEVEL_HWDEF_H
#define _ASM_PGTABLE_2LEVEL_HWDEF_H

/*
 * Hardware page table definitions.
 *
 * + Level 1 descriptor (PMD)
 *   - common
 */
#define PMD_TYPE_MASK           (_AT(pmdval_t, 3) << 0)
#define PMD_TYPE_FAULT          (_AT(pmdval_t, 0) << 0)
#define PMD_TYPE_TABLE          (_AT(pmdval_t, 1) << 0)
#define PMD_TYPE_SECT           (_AT(pmdval_t, 2) << 0)
#define PMD_PXNTABLE            (_AT(pmdval_t, 1) << 2)     /* v7 */
#define PMD_BIT4                (_AT(pmdval_t, 1) << 4)
#define PMD_DOMAIN(x)           (_AT(pmdval_t, (x)) << 5)
#define PMD_DOMAIN_MASK         PMD_DOMAIN(0x0f)
#define PMD_PROTECTION          (_AT(pmdval_t, 1) << 9)         /* v5 */
/*
 *   - section
 */
#define PMD_SECT_PXN    (_AT(pmdval_t, 1) << 0)     /* v7 */
#define PMD_SECT_BUFFERABLE     (_AT(pmdval_t, 1) << 2)
#define PMD_SECT_CACHEABLE      (_AT(pmdval_t, 1) << 3)
#define PMD_SECT_XN             (_AT(pmdval_t, 1) << 4)         /* v6 */
#define PMD_SECT_AP_WRITE       (_AT(pmdval_t, 1) << 10)
#define PMD_SECT_AP_READ        (_AT(pmdval_t, 1) << 11)
#define PMD_SECT_TEX(x)         (_AT(pmdval_t, (x)) << 12)      /* v5 */
#define PMD_SECT_APX            (_AT(pmdval_t, 1) << 15)        /* v6 */
#define PMD_SECT_S              (_AT(pmdval_t, 1) << 16)        /* v6 */
#define PMD_SECT_nG             (_AT(pmdval_t, 1) << 17)        /* v6 */
#define PMD_SECT_SUPER          (_AT(pmdval_t, 1) << 18)        /* v6 */
#define PMD_SECT_AF             (_AT(pmdval_t, 0))

#define PMD_SECT_UNCACHED       (_AT(pmdval_t, 0))
#define PMD_SECT_BUFFERED       (PMD_SECT_BUFFERABLE)
#define PMD_SECT_WT             (PMD_SECT_CACHEABLE)
#define PMD_SECT_WB             (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_MINICACHE      (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
#define PMD_SECT_WBWA           (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_CACHE_MASK     (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_NONSHARED_DEV  (PMD_SECT_TEX(2))

/*
 *   - coarse table (not used)
 */

/*
 * + Level 2 descriptor (PTE)
 *   - common
 */
#define PTE_TYPE_MASK           (_AT(pteval_t, 3) << 0)
#define PTE_TYPE_FAULT          (_AT(pteval_t, 0) << 0)
#define PTE_TYPE_LARGE          (_AT(pteval_t, 1) << 0)
#define PTE_TYPE_SMALL          (_AT(pteval_t, 2) << 0)
#define PTE_TYPE_EXT            (_AT(pteval_t, 3) << 0)         /* v5 */
#define PTE_BUFFERABLE          (_AT(pteval_t, 1) << 2)
#define PTE_CACHEABLE           (_AT(pteval_t, 1) << 3)

/*
 *   - extended small page/tiny page
 */
#define PTE_EXT_XN              (_AT(pteval_t, 1) << 0)         /* v6 */
#define PTE_EXT_AP_MASK         (_AT(pteval_t, 3) << 4)
#define PTE_EXT_AP0             (_AT(pteval_t, 1) << 4)
#define PTE_EXT_AP1             (_AT(pteval_t, 2) << 4)
#define PTE_EXT_AP_UNO_SRO      (_AT(pteval_t, 0) << 4)
#define PTE_EXT_AP_UNO_SRW      (PTE_EXT_AP0)
#define PTE_EXT_AP_URO_SRW      (PTE_EXT_AP1)
#define PTE_EXT_AP_URW_SRW      (PTE_EXT_AP1|PTE_EXT_AP0)
#define PTE_EXT_TEX(x)          (_AT(pteval_t, (x)) << 6)       /* v5 */
#define PTE_EXT_APX             (_AT(pteval_t, 1) << 9)         /* v6 */
#define PTE_EXT_COHERENT        (_AT(pteval_t, 1) << 9)         /* XScale3 */
#define PTE_EXT_SHARED          (_AT(pteval_t, 1) << 10)        /* v6 */
#define PTE_EXT_NG              (_AT(pteval_t, 1) << 11)        /* v6 */

/*
 *   - small page
 */
#define PTE_SMALL_AP_MASK       (_AT(pteval_t, 0xff) << 4)
#define PTE_SMALL_AP_UNO_SRO    (_AT(pteval_t, 0x00) << 4)
#define PTE_SMALL_AP_UNO_SRW    (_AT(pteval_t, 0x55) << 4)
#define PTE_SMALL_AP_URO_SRW    (_AT(pteval_t, 0xaa) << 4)
#define PTE_SMALL_AP_URW_SRW    (_AT(pteval_t, 0xff) << 4)

#define PHYS_MASK               (~0UL)

#endif