mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-14 12:49:08 +00:00
memblock: Add debugfs files to dump the arrays content
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
parent
918fe8d603
commit
6d03b885f0
@ -16,6 +16,8 @@
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/poison.h>
|
||||
#include <linux/pfn.h>
|
||||
#include <linux/debugfs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/memblock.h>
|
||||
|
||||
struct memblock memblock;
|
||||
@ -740,3 +742,52 @@ static int __init early_memblock(char *p)
|
||||
}
|
||||
early_param("memblock", early_memblock);
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
|
||||
static int memblock_debug_show(struct seq_file *m, void *private)
|
||||
{
|
||||
struct memblock_type *type = m->private;
|
||||
struct memblock_region *reg;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < type->cnt; i++) {
|
||||
reg = &type->regions[i];
|
||||
seq_printf(m, "%4d: ", i);
|
||||
if (sizeof(phys_addr_t) == 4)
|
||||
seq_printf(m, "0x%08lx..0x%08lx\n",
|
||||
(unsigned long)reg->base,
|
||||
(unsigned long)(reg->base + reg->size - 1));
|
||||
else
|
||||
seq_printf(m, "0x%016llx..0x%016llx\n",
|
||||
(unsigned long long)reg->base,
|
||||
(unsigned long long)(reg->base + reg->size - 1));
|
||||
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int memblock_debug_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, memblock_debug_show, inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations memblock_debug_fops = {
|
||||
.open = memblock_debug_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
static int __init memblock_init_debugfs(void)
|
||||
{
|
||||
struct dentry *root = debugfs_create_dir("memblock", NULL);
|
||||
if (!root)
|
||||
return -ENXIO;
|
||||
debugfs_create_file("memory", S_IRUGO, root, &memblock.memory, &memblock_debug_fops);
|
||||
debugfs_create_file("reserved", S_IRUGO, root, &memblock.reserved, &memblock_debug_fops);
|
||||
|
||||
return 0;
|
||||
}
|
||||
__initcall(memblock_init_debugfs);
|
||||
|
||||
#endif /* CONFIG_DEBUG_FS */
|
||||
|
Loading…
Reference in New Issue
Block a user