aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/book3s/64/radix-64k.h
blob: ccb78ca9d0c54368860ecab63e39761c883b34f9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_PGTABLE_RADIX_64K_H
#define _ASM_POWERPC_PGTABLE_RADIX_64K_H

/*
 * For 64K page size supported index is 13/9/9/5
 */
#define RADIX_PTE_INDEX_SIZE  5  /* 2MB huge page */
#define RADIX_PMD_INDEX_SIZE  9  /* 1G huge page */
#define RADIX_PUD_INDEX_SIZE	 9
#define RADIX_PGD_INDEX_SIZE  13

/*
 * We use a 256 byte PTE page fragment in radix
 * 8 bytes per each PTE entry.
 */
#define RADIX_PTE_FRAG_SIZE_SHIFT  (RADIX_PTE_INDEX_SIZE + 3)
#define RADIX_PTE_FRAG_NR	(PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT)

#define RADIX_PMD_FRAG_SIZE_SHIFT  (RADIX_PMD_INDEX_SIZE + 3)
#define RADIX_PMD_FRAG_NR	(PAGE_SIZE >> RADIX_PMD_FRAG_SIZE_SHIFT)

#endif /* _ASM_POWERPC_PGTABLE_RADIX_64K_H */