1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// SPDX-License-Identifier: GPL-2.0-or-later
#include <linux/memblock.h>
#include <linux/printk.h>
#include <linux/numa.h>
#include <linux/numa_memblks.h>
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
/* Allocate NODE_DATA for a node on the local memory */
void __init alloc_node_data(int nid)
{
const size_t nd_size = roundup(sizeof(pg_data_t), SMP_CACHE_BYTES);
u64 nd_pa;
void *nd;
int tnid;
/* Allocate node data. Try node-local memory and then any node. */
nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
if (!nd_pa)
panic("Cannot allocate %zu bytes for node %d data\n",
nd_size, nid);
nd = __va(nd_pa);
/* report and initialize */
pr_info("NODE_DATA(%d) allocated [mem %#010Lx-%#010Lx]\n", nid,
nd_pa, nd_pa + nd_size - 1);
tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT);
if (tnid != nid)
pr_info(" NODE_DATA(%d) on node %d\n", nid, tnid);
node_data[nid] = nd;
memset(NODE_DATA(nid), 0, sizeof(pg_data_t));
}
void __init alloc_offline_node_data(int nid)
{
pg_data_t *pgdat;
pgdat = memblock_alloc(sizeof(*pgdat), SMP_CACHE_BYTES);
if (!pgdat)
panic("Cannot allocate %zuB for node %d.\n",
sizeof(*pgdat), nid);
node_data[nid] = pgdat;
}
/* Stub functions: */
#ifndef memory_add_physaddr_to_nid
int memory_add_physaddr_to_nid(u64 start)
{
pr_info_once("Unknown online node for memory at 0x%llx, assuming node 0\n",
start);
return 0;
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
#ifndef phys_to_target_node
int phys_to_target_node(u64 start)
{
pr_info_once("Unknown target node for memory at 0x%llx, assuming node 0\n",
start);
return 0;
}
EXPORT_SYMBOL_GPL(phys_to_target_node);
#endif
|
