92 lines
1.5 KiB
C
92 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2020 MediaTek Inc.
|
|
*/
|
|
|
|
#include <asm/page.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/mm.h>
|
|
|
|
#include "rs_base.h"
|
|
|
|
#define LOGSIZE 32
|
|
|
|
void *rs_alloc_atomic(int i32Size)
|
|
{
|
|
void *pvBuf;
|
|
|
|
if (i32Size <= PAGE_SIZE)
|
|
pvBuf = kmalloc(i32Size, GFP_ATOMIC);
|
|
else
|
|
pvBuf = vmalloc(i32Size);
|
|
|
|
return pvBuf;
|
|
}
|
|
|
|
void rs_free(void *pvBuf)
|
|
{
|
|
kvfree(pvBuf);
|
|
}
|
|
|
|
int rs_sysfs_create_dir(struct kobject *parent,
|
|
const char *name, struct kobject **ppsKobj)
|
|
{
|
|
struct kobject *psKobj = NULL;
|
|
|
|
if (name == NULL || ppsKobj == NULL)
|
|
return -1;
|
|
|
|
parent = (parent != NULL) ? parent : rs_kobj;
|
|
if (parent == NULL)
|
|
return -1;
|
|
|
|
psKobj = kobject_create_and_add(name, parent);
|
|
if (!psKobj)
|
|
return -1;
|
|
|
|
*ppsKobj = psKobj;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void rs_sysfs_remove_dir(struct kobject **ppsKobj)
|
|
{
|
|
if (ppsKobj == NULL)
|
|
return;
|
|
|
|
kobject_put(*ppsKobj);
|
|
*ppsKobj = NULL;
|
|
}
|
|
|
|
void rs_sysfs_create_file(struct kobject *parent,
|
|
struct kobj_attribute *kobj_attr)
|
|
{
|
|
int ret;
|
|
|
|
if (kobj_attr == NULL)
|
|
return;
|
|
|
|
parent = (parent != NULL) ? parent : rs_kobj;
|
|
if (parent == NULL)
|
|
return;
|
|
|
|
ret = sysfs_create_file(parent, &(kobj_attr->attr));
|
|
if (ret)
|
|
pr_debug("Failed to create sysfs file\n");
|
|
}
|
|
|
|
void rs_sysfs_remove_file(struct kobject *parent,
|
|
struct kobj_attribute *kobj_attr)
|
|
{
|
|
if (kobj_attr == NULL)
|
|
return;
|
|
|
|
parent = (parent != NULL) ? parent : rs_kobj;
|
|
if (parent == NULL)
|
|
return;
|
|
|
|
sysfs_remove_file(parent, &(kobj_attr->attr));
|
|
}
|
|
|