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/* 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 // size: 8B << 5 = 256B, maps 2^5 x 64K = 2MB #define RADIX_PMD_INDEX_SIZE 9 // size: 8B << 9 = 4KB, maps 2^9 x 2MB = 1GB #define RADIX_PUD_INDEX_SIZE 9 // size: 8B << 9 = 4KB, maps 2^9 x 1GB = 512GB #define RADIX_PGD_INDEX_SIZE 13 // size: 8B << 13 = 64KB, maps 2^13 x 512GB = 4PB /* * 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 */