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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/kallsyms.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
void __init pre_alloc_dyn_array(void)
{
#ifdef CONFIG_HAVE_DYN_ARRAY
unsigned long total_size = 0, size, phys;
unsigned long max_align = 1;
struct dyn_array **daa;
char *ptr;
/* get the total size at first */
for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
struct dyn_array *da = *daa;
size = da->size * (*da->nr);
print_fn_descriptor_symbol("dyn_array %s ", da->name);
printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
da->size, *da->nr, da->align);
total_size += roundup(size, da->align);
if (da->align > max_align)
max_align = da->align;
}
if (total_size)
printk(KERN_DEBUG "dyn_array total_size: %#lx\n",
total_size);
else
return;
/* allocate them all together */
max_align = max_t(unsigned long, max_align, PAGE_SIZE);
ptr = __alloc_bootmem_nopanic(total_size, max_align, 0);
if (!ptr)
panic("Can not alloc dyn_alloc\n");
phys = virt_to_phys(ptr);
for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
struct dyn_array *da = *daa;
size = da->size * (*da->nr);
print_fn_descriptor_symbol("dyn_array %s ", da->name);
phys = roundup(phys, da->align);
*da->name = phys_to_virt(phys);
printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
phys += size;
if (da->init_work)
da->init_work(da);
}
#else
#ifdef CONFIF_GENERIC_HARDIRQS
unsigned int i;
for (i = 0; i < NR_IRQS; i++)
irq_desc[i].irq = i;
#endif
#endif
}
unsigned long __init per_cpu_dyn_array_size(unsigned long *align)
{
unsigned long total_size = 0;
#ifdef CONFIG_HAVE_DYN_ARRAY
unsigned long size;
struct dyn_array **daa;
unsigned max_align = 1;
for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
struct dyn_array *da = *daa;
size = da->size * (*da->nr);
print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
da->size, *da->nr, da->align);
total_size += roundup(size, da->align);
if (da->align > max_align)
max_align = da->align;
}
if (total_size) {
printk(KERN_DEBUG "per_cpu_dyn_array total_size: %#lx\n",
total_size);
*align = max_align;
}
#endif
return total_size;
}
#ifdef CONFIG_SMP
void __init per_cpu_alloc_dyn_array(int cpu, char *ptr)
{
#ifdef CONFIG_HAVE_DYN_ARRAY
unsigned long size, phys;
struct dyn_array **daa;
unsigned long addr;
void **array;
phys = virt_to_phys(ptr);
for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
struct dyn_array *da = *daa;
size = da->size * (*da->nr);
print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
phys = roundup(phys, da->align);
addr = (unsigned long)da->name;
addr += per_cpu_offset(cpu);
array = (void **)addr;
*array = phys_to_virt(phys);
*da->name = *array; /* so init_work could use it directly */
printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
phys += size;
if (da->init_work) {
da->init_work(da);
}
}
#endif
}
#endif
|
