1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_IA64_SPARSEMEM_H 3 #define _ASM_IA64_SPARSEMEM_H 4 5 #ifdef CONFIG_SPARSEMEM 6 #include <asm/page.h> 7 /* 8 * SECTION_SIZE_BITS 2^N: how big each section will be 9 * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space 10 */ 11 12 #define SECTION_SIZE_BITS (30) 13 #define MAX_PHYSMEM_BITS (50) 14 #ifdef CONFIG_ARCH_FORCE_MAX_ORDER 15 #if ((CONFIG_ARCH_FORCE_MAX_ORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) 16 #undef SECTION_SIZE_BITS 17 #define SECTION_SIZE_BITS (CONFIG_ARCH_FORCE_MAX_ORDER - 1 + PAGE_SHIFT) 18 #endif 19 #endif 20 21 #endif /* CONFIG_SPARSEMEM */ 22 23 #ifdef CONFIG_MEMORY_HOTPLUG 24 int memory_add_physaddr_to_nid(u64 addr); 25 #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid 26 #endif 27 28 #endif /* _ASM_IA64_SPARSEMEM_H */ 29