threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
92 lines
1.8 KiB
C
92 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2015 MediaTek Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include "ged_base.h"
|
|
#include <asm/page.h>
|
|
#include <linux/version.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/sched/clock.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <linux/uaccess.h>
|
|
|
|
unsigned long ged_copy_to_user(void __user *pvTo, const void *pvFrom,
|
|
unsigned long ulBytes)
|
|
{
|
|
if (access_ok(VERIFY_WRITE, pvTo, ulBytes))
|
|
return __copy_to_user(pvTo, pvFrom, ulBytes);
|
|
return ulBytes;
|
|
}
|
|
|
|
unsigned long ged_copy_from_user(void *pvTo, const void __user *pvFrom,
|
|
unsigned long ulBytes)
|
|
{
|
|
if (access_ok(VERIFY_READ, pvFrom, ulBytes))
|
|
return __copy_from_user(pvTo, pvFrom, ulBytes);
|
|
return ulBytes;
|
|
}
|
|
|
|
void *ged_alloc(int i32Size)
|
|
{
|
|
void *pvBuf;
|
|
|
|
if (i32Size <= PAGE_SIZE)
|
|
pvBuf = kmalloc(i32Size, GFP_KERNEL);
|
|
else
|
|
pvBuf = vmalloc(i32Size);
|
|
|
|
return pvBuf;
|
|
}
|
|
|
|
void *ged_alloc_atomic(int i32Size)
|
|
{
|
|
void *pvBuf;
|
|
|
|
if (i32Size <= PAGE_SIZE)
|
|
pvBuf = kmalloc(i32Size, GFP_ATOMIC);
|
|
else
|
|
pvBuf = vmalloc(i32Size);
|
|
|
|
return pvBuf;
|
|
}
|
|
|
|
void ged_free(void *pvBuf, int i32Size)
|
|
{
|
|
if (pvBuf) {
|
|
if (i32Size <= PAGE_SIZE)
|
|
kfree(pvBuf);
|
|
else
|
|
vfree(pvBuf);
|
|
}
|
|
}
|
|
|
|
long ged_get_pid(void)
|
|
{
|
|
if (in_interrupt())
|
|
return 0xffffffffL;
|
|
return (long)task_tgid_nr(current);
|
|
}
|
|
|
|
unsigned long long ged_get_time(void)
|
|
{
|
|
unsigned long long temp;
|
|
|
|
preempt_disable();
|
|
temp = cpu_clock(smp_processor_id());
|
|
preempt_enable();
|
|
|
|
return temp;
|
|
}
|
|
|