projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d7a73e3f KO |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | ||
| 3515863d | 3 | #include <linux/memblock.h> |
| d7a73e3f KO |
4 | #include <linux/printk.h> |
| 5 | #include <linux/numa.h> | |
| 1b5695b0 | 6 | #include <linux/numa_memblks.h> |
| d7a73e3f | 7 | |
| 46bcce50 MRM |
8 | struct pglist_data *node_data[MAX_NUMNODES]; |
| 9 | EXPORT_SYMBOL(node_data); | |
| 10 | ||
| 3515863d MRM |
11 | /* Allocate NODE_DATA for a node on the local memory */ |
| 12 | void __init alloc_node_data(int nid) | |
| 13 | { | |
| 14 | const size_t nd_size = roundup(sizeof(pg_data_t), SMP_CACHE_BYTES); | |
| 15 | u64 nd_pa; | |
| 16 | void *nd; | |
| 17 | int tnid; | |
| 18 | ||
| 19 | /* Allocate node data. Try node-local memory and then any node. */ | |
| 20 | nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid); | |
| 21 | if (!nd_pa) | |
| 22 | panic("Cannot allocate %zu bytes for node %d data\n", | |
| 23 | nd_size, nid); | |
| 24 | nd = __va(nd_pa); | |
| 25 | ||
| 26 | /* report and initialize */ | |
| 27 | pr_info("NODE_DATA(%d) allocated [mem %#010Lx-%#010Lx]\n", nid, | |
| 28 | nd_pa, nd_pa + nd_size - 1); | |
| 29 | tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT); | |
| 30 | if (tnid != nid) | |
| 31 | pr_info(" NODE_DATA(%d) on node %d\n", nid, tnid); | |
| 32 | ||
| 33 | node_data[nid] = nd; | |
| 34 | memset(NODE_DATA(nid), 0, sizeof(pg_data_t)); | |
| 35 | } | |
| 36 | ||
| ec164cf1 MRM |
37 | void __init alloc_offline_node_data(int nid) |
| 38 | { | |
| 39 | pg_data_t *pgdat; | |
| c6f23979 | 40 | node_data[nid] = memblock_alloc_or_panic(sizeof(*pgdat), SMP_CACHE_BYTES); |
| ec164cf1 MRM |
41 | } |
| 42 | ||
| d7a73e3f KO |
43 | /* Stub functions: */ |
| 44 | ||
| 45 | #ifndef memory_add_physaddr_to_nid | |
| 46 | int memory_add_physaddr_to_nid(u64 start) | |
| 47 | { | |
| 48 | pr_info_once("Unknown online node for memory at 0x%llx, assuming node 0\n", | |
| 49 | start); | |
| 50 | return 0; | |
| 51 | } | |
| 52 | EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); | |
| 53 | #endif | |
| 54 | ||
| 55 | #ifndef phys_to_target_node | |
| 56 | int phys_to_target_node(u64 start) | |
| 57 | { | |
| 58 | pr_info_once("Unknown target node for memory at 0x%llx, assuming node 0\n", | |
| 59 | start); | |
| 60 | return 0; | |
| 61 | } | |
| 62 | EXPORT_SYMBOL_GPL(phys_to_target_node); | |
| 63 | #endif |