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
|
/*
* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* @file mali_osk_misc.c
* Implementation of the OS abstraction layer for the kernel device driver
*/
#include <linux/kernel.h>
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
#include <linux/sched.h>
#include <linux/module.h>
#include "mali_osk.h"
void _mali_osk_dbgmsg( const char *fmt, ... )
{
va_list args;
va_start(args, fmt);
vprintk(fmt, args);
va_end(args);
}
u32 _mali_osk_snprintf( char *buf, u32 size, const char *fmt, ... )
{
int res;
va_list args;
va_start(args, fmt);
res = vscnprintf(buf, (size_t)size, fmt, args);
va_end(args);
return res;
}
void _mali_osk_abort(void)
{
/* make a simple fault by dereferencing a NULL pointer */
dump_stack();
*(int *)0 = 0;
}
void _mali_osk_break(void)
{
_mali_osk_abort();
}
u32 _mali_osk_get_pid(void)
{
/* Thread group ID is the process ID on Linux */
return (u32)current->tgid;
}
u32 _mali_osk_get_tid(void)
{
/* pid is actually identifying the thread on Linux */
u32 tid = current->pid;
/* If the pid is 0 the core was idle. Instead of returning 0 we return a special number
* identifying which core we are on. */
if (0 == tid) {
tid = -(1 + raw_smp_processor_id());
}
return tid;
}
|
