| /* 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 */ |
