e7f5ed8d6e
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
#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;
|
|
}
|
|
|
|
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
|
|
}
|