/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LOONGARCH_SPARSEMEM_H #define _LOONGARCH_SPARSEMEM_H #ifdef CONFIG_SPARSEMEM /* * SECTION_SIZE_BITS 2^N: how big each section will be * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space */ #define SECTION_SIZE_BITS 29 /* 2^29 = Largest Huge Page Size */ #define MAX_PHYSMEM_BITS 48 #ifdef CONFIG_SPARSEMEM_VMEMMAP #define VMEMMAP_SIZE (sizeof(struct page) * (1UL << (cpu_pabits + 1 - PAGE_SHIFT))) #endif #endif /* CONFIG_SPARSEMEM */ #ifndef VMEMMAP_SIZE #define VMEMMAP_SIZE 0 /* 1, For FLATMEM; 2, For SPARSEMEM without VMEMMAP. */ #endif #ifdef CONFIG_MEMORY_HOTPLUG int memory_add_physaddr_to_nid(u64 addr); #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid #endif #define INIT_MEMBLOCK_RESERVED_REGIONS (INIT_MEMBLOCK_REGIONS + NR_CPUS) #endif /* _LOONGARCH_SPARSEMEM_H */