radix.h (16ba7e312045cd5d32fba0156312b4303f200787) radix.h (2fb4706057bcf8261b3b0521ec7a62b54b82ce48)
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_PGTABLE_RADIX_H
3#define _ASM_POWERPC_PGTABLE_RADIX_H
4
5#include <asm/asm-const.h>
6
7#ifndef __ASSEMBLY__
8#include <asm/cmpxchg.h>

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25/* Bits to set in a RPMD/RPUD/RPGD */
26#define RADIX_PMD_VAL_BITS (0x8000000000000000UL | RADIX_PTE_INDEX_SIZE)
27#define RADIX_PUD_VAL_BITS (0x8000000000000000UL | RADIX_PMD_INDEX_SIZE)
28#define RADIX_PGD_VAL_BITS (0x8000000000000000UL | RADIX_PUD_INDEX_SIZE)
29
30/* Don't have anything in the reserved bits and leaf bits */
31#define RADIX_PMD_BAD_BITS 0x60000000000000e0UL
32#define RADIX_PUD_BAD_BITS 0x60000000000000e0UL
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_PGTABLE_RADIX_H
3#define _ASM_POWERPC_PGTABLE_RADIX_H
4
5#include <asm/asm-const.h>
6
7#ifndef __ASSEMBLY__
8#include <asm/cmpxchg.h>

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25/* Bits to set in a RPMD/RPUD/RPGD */
26#define RADIX_PMD_VAL_BITS (0x8000000000000000UL | RADIX_PTE_INDEX_SIZE)
27#define RADIX_PUD_VAL_BITS (0x8000000000000000UL | RADIX_PMD_INDEX_SIZE)
28#define RADIX_PGD_VAL_BITS (0x8000000000000000UL | RADIX_PUD_INDEX_SIZE)
29
30/* Don't have anything in the reserved bits and leaf bits */
31#define RADIX_PMD_BAD_BITS 0x60000000000000e0UL
32#define RADIX_PUD_BAD_BITS 0x60000000000000e0UL
33#define RADIX_PGD_BAD_BITS 0x60000000000000e0UL
33#define RADIX_P4D_BAD_BITS 0x60000000000000e0UL
34
35#define RADIX_PMD_SHIFT (PAGE_SHIFT + RADIX_PTE_INDEX_SIZE)
36#define RADIX_PUD_SHIFT (RADIX_PMD_SHIFT + RADIX_PMD_INDEX_SIZE)
37#define RADIX_PGD_SHIFT (RADIX_PUD_SHIFT + RADIX_PUD_INDEX_SIZE)
38/*
39 * Size of EA range mapped by our pagetables.
40 */
41#define RADIX_PGTABLE_EADDR_SIZE (RADIX_PTE_INDEX_SIZE + RADIX_PMD_INDEX_SIZE + \

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222}
223
224static inline int radix__pud_bad(pud_t pud)
225{
226 return !!(pud_val(pud) & RADIX_PUD_BAD_BITS);
227}
228
229
34
35#define RADIX_PMD_SHIFT (PAGE_SHIFT + RADIX_PTE_INDEX_SIZE)
36#define RADIX_PUD_SHIFT (RADIX_PMD_SHIFT + RADIX_PMD_INDEX_SIZE)
37#define RADIX_PGD_SHIFT (RADIX_PUD_SHIFT + RADIX_PUD_INDEX_SIZE)
38/*
39 * Size of EA range mapped by our pagetables.
40 */
41#define RADIX_PGTABLE_EADDR_SIZE (RADIX_PTE_INDEX_SIZE + RADIX_PMD_INDEX_SIZE + \

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222}
223
224static inline int radix__pud_bad(pud_t pud)
225{
226 return !!(pud_val(pud) & RADIX_PUD_BAD_BITS);
227}
228
229
230static inline int radix__pgd_bad(pgd_t pgd)
230static inline int radix__p4d_bad(p4d_t p4d)
231{
231{
232 return !!(pgd_val(pgd) & RADIX_PGD_BAD_BITS);
232 return !!(p4d_val(p4d) & RADIX_P4D_BAD_BITS);
233}
234
235#ifdef CONFIG_TRANSPARENT_HUGEPAGE
236
237static inline int radix__pmd_trans_huge(pmd_t pmd)
238{
239 return (pmd_val(pmd) & (_PAGE_PTE | _PAGE_DEVMAP)) == _PAGE_PTE;
240}

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234
235#ifdef CONFIG_TRANSPARENT_HUGEPAGE
236
237static inline int radix__pmd_trans_huge(pmd_t pmd)
238{
239 return (pmd_val(pmd) & (_PAGE_PTE | _PAGE_DEVMAP)) == _PAGE_PTE;
240}

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