| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_IA64_SPARSEMEM_H |
| #define _ASM_IA64_SPARSEMEM_H |
| |
| #ifdef CONFIG_SPARSEMEM |
| #include <asm/page.h> |
| /* |
| * 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 (30) |
| #define MAX_PHYSMEM_BITS (50) |
| #ifdef CONFIG_ARCH_FORCE_MAX_ORDER |
| #if (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT > SECTION_SIZE_BITS) |
| #undef SECTION_SIZE_BITS |
| #define SECTION_SIZE_BITS (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT) |
| #endif |
| #endif |
| |
| #endif /* CONFIG_SPARSEMEM */ |
| |
| #ifdef CONFIG_MEMORY_HOTPLUG |
| int memory_add_physaddr_to_nid(u64 addr); |
| #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid |
| #endif |
| |
| #endif /* _ASM_IA64_SPARSEMEM_H */ |
