1 /*
2 * Copyright (C) 2010, 2013-2014, 2016-2017 ARM Limited. All rights reserved.
3 *
4 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
5 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
6 *
7 * A copy of the licence is included with the program, and can also be obtained from Free Software
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
9 */
10
11 /**
12 * @file mali_osk_atomics.c
13 * Implementation of the OS abstraction layer for the kernel device driver
14 */
15
16 #include "mali_osk.h"
17 #include <asm/atomic.h>
18 #include "mali_kernel_common.h"
19
_mali_osk_atomic_dec(_mali_osk_atomic_t * atom)20 void _mali_osk_atomic_dec(_mali_osk_atomic_t *atom)
21 {
22 atomic_dec((atomic_t *)&atom->u.val);
23 }
24
_mali_osk_atomic_dec_return(_mali_osk_atomic_t * atom)25 u32 _mali_osk_atomic_dec_return(_mali_osk_atomic_t *atom)
26 {
27 return atomic_dec_return((atomic_t *)&atom->u.val);
28 }
29
_mali_osk_atomic_inc(_mali_osk_atomic_t * atom)30 void _mali_osk_atomic_inc(_mali_osk_atomic_t *atom)
31 {
32 atomic_inc((atomic_t *)&atom->u.val);
33 }
34
_mali_osk_atomic_inc_return(_mali_osk_atomic_t * atom)35 u32 _mali_osk_atomic_inc_return(_mali_osk_atomic_t *atom)
36 {
37 return atomic_inc_return((atomic_t *)&atom->u.val);
38 }
39
_mali_osk_atomic_init(_mali_osk_atomic_t * atom,u32 val)40 void _mali_osk_atomic_init(_mali_osk_atomic_t *atom, u32 val)
41 {
42 MALI_DEBUG_ASSERT_POINTER(atom);
43 atomic_set((atomic_t *)&atom->u.val, val);
44 }
45
_mali_osk_atomic_read(_mali_osk_atomic_t * atom)46 u32 _mali_osk_atomic_read(_mali_osk_atomic_t *atom)
47 {
48 return atomic_read((atomic_t *)&atom->u.val);
49 }
50
_mali_osk_atomic_term(_mali_osk_atomic_t * atom)51 void _mali_osk_atomic_term(_mali_osk_atomic_t *atom)
52 {
53 MALI_IGNORE(atom);
54 }
55
_mali_osk_atomic_xchg(_mali_osk_atomic_t * atom,u32 val)56 u32 _mali_osk_atomic_xchg(_mali_osk_atomic_t *atom, u32 val)
57 {
58 return atomic_xchg((atomic_t *)&atom->u.val, val);
59 }
60