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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 ARM Ltd. */ #ifndef __ASM_SPARSEMEM_H #define __ASM_SPARSEMEM_H #define MAX_PHYSMEM_BITS CONFIG_ARM64_PA_BITS /* * Section size must be at least 512MB for 64K base * page size config. Otherwise it will be less than * MAX_ORDER and the build process will fail. */ #ifdef CONFIG_ARM64_64K_PAGES #define SECTION_SIZE_BITS 29 #else /* * Section size must be at least 128MB for 4K base * page size config. Otherwise PMD based huge page * entries could not be created for vmemmap mappings. * 16K follows 4K for simplicity. */ #define SECTION_SIZE_BITS 27 #endif /* CONFIG_ARM64_64K_PAGES */ #endif |