| | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| | 2 | #ifndef _ASM_POWERPC_SPARSEMEM_H |
| | 3 | #define _ASM_POWERPC_SPARSEMEM_H 1 |
| | 4 | #ifdef __KERNEL__ |
| | 5 | |
| | 6 | #ifdef CONFIG_SPARSEMEM |
| | 7 | /* |
| | 8 | * SECTION_SIZE_BITS 2^N: how big each section will be |
| | 9 | * MAX_PHYSADDR_BITS 2^N: how much physical address space we have |
| | 10 | * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space |
| | 11 | */ |
| | 12 | #define SECTION_SIZE_BITS 24 |
| | 13 | |
| | 14 | #define MAX_PHYSADDR_BITS 46 |
| | 15 | #define MAX_PHYSMEM_BITS 46 |
| | 16 | |
| | 17 | #endif /* CONFIG_SPARSEMEM */ |
| | 18 | |
| | 19 | #ifdef CONFIG_MEMORY_HOTPLUG |
| | 20 | extern int create_section_mapping(unsigned long start, unsigned long end); |
| | 21 | extern int remove_section_mapping(unsigned long start, unsigned long end); |
| | 22 | |
| | 23 | #ifdef CONFIG_PPC_BOOK3S_64 |
| | 24 | extern void resize_hpt_for_hotplug(unsigned long new_mem_size); |
| | 25 | #else |
| | 26 | static inline void resize_hpt_for_hotplug(unsigned long new_mem_size) { } |
| | 27 | #endif |
| | 28 | |
| | 29 | #ifdef CONFIG_NUMA |
| | 30 | extern int hot_add_scn_to_nid(unsigned long scn_addr); |
| | 31 | #else |
| | 32 | static inline int hot_add_scn_to_nid(unsigned long scn_addr) |
| | 33 | { |
| | 34 | return 0; |
| | 35 | } |
| | 36 | #endif /* CONFIG_NUMA */ |
| | 37 | #endif /* CONFIG_MEMORY_HOTPLUG */ |
| | 38 | |
| | 39 | #endif /* __KERNEL__ */ |
| | 40 | #endif /* _ASM_POWERPC_SPARSEMEM_H */ |
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / blame_incremental