18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_POWERPC_PGTABLE_RADIX_4K_H 38c2ecf20Sopenharmony_ci#define _ASM_POWERPC_PGTABLE_RADIX_4K_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci/* 68c2ecf20Sopenharmony_ci * For 4K page size supported index is 13/9/9/9 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci#define RADIX_PTE_INDEX_SIZE 9 // size: 8B << 9 = 4KB, maps 2^9 x 4K = 2MB 98c2ecf20Sopenharmony_ci#define RADIX_PMD_INDEX_SIZE 9 // size: 8B << 9 = 4KB, maps 2^9 x 2MB = 1GB 108c2ecf20Sopenharmony_ci#define RADIX_PUD_INDEX_SIZE 9 // size: 8B << 9 = 4KB, maps 2^9 x 1GB = 512GB 118c2ecf20Sopenharmony_ci#define RADIX_PGD_INDEX_SIZE 13 // size: 8B << 13 = 64KB, maps 2^13 x 512GB = 4PB 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci/* 148c2ecf20Sopenharmony_ci * One fragment per page 158c2ecf20Sopenharmony_ci */ 168c2ecf20Sopenharmony_ci#define RADIX_PTE_FRAG_SIZE_SHIFT (RADIX_PTE_INDEX_SIZE + 3) 178c2ecf20Sopenharmony_ci#define RADIX_PTE_FRAG_NR (PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT) 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci#define RADIX_PMD_FRAG_SIZE_SHIFT (RADIX_PMD_INDEX_SIZE + 3) 208c2ecf20Sopenharmony_ci#define RADIX_PMD_FRAG_NR (PAGE_SIZE >> RADIX_PMD_FRAG_SIZE_SHIFT) 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ci#endif /* _ASM_POWERPC_PGTABLE_RADIX_4K_H */ 23