1 /*
2 * Copyright (C) 2010-2017 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 #include <linux/fs.h> /* file system operations */
11 #include <linux/slab.h> /* memort allocation functions */
12 #include <linux/uaccess.h> /* user space access */
13
14 #include "mali_ukk.h"
15 #include "mali_osk.h"
16 #include "mali_kernel_common.h"
17 #include "mali_session.h"
18 #include "mali_ukk_wrappers.h"
19
get_api_version_wrapper(struct mali_session_data * session_data,_mali_uk_get_api_version_s __user * uargs)20 int get_api_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_api_version_s __user *uargs)
21 {
22 _mali_uk_get_api_version_s kargs;
23 _mali_osk_errcode_t err;
24
25 MALI_CHECK_NON_NULL(uargs, -EINVAL);
26
27 if (0 != get_user(kargs.version, &uargs->version)) return -EFAULT;
28
29 kargs.ctx = (uintptr_t)session_data;
30 err = _mali_ukk_get_api_version(&kargs);
31 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
32
33 if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT;
34 if (0 != put_user(kargs.compatible, &uargs->compatible)) return -EFAULT;
35
36 return 0;
37 }
38
get_api_version_v2_wrapper(struct mali_session_data * session_data,_mali_uk_get_api_version_v2_s __user * uargs)39 int get_api_version_v2_wrapper(struct mali_session_data *session_data, _mali_uk_get_api_version_v2_s __user *uargs)
40 {
41 _mali_uk_get_api_version_v2_s kargs;
42 _mali_osk_errcode_t err;
43
44 MALI_CHECK_NON_NULL(uargs, -EINVAL);
45
46 if (0 != get_user(kargs.version, &uargs->version)) return -EFAULT;
47
48 kargs.ctx = (uintptr_t)session_data;
49 err = _mali_ukk_get_api_version_v2(&kargs);
50 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
51
52 if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT;
53 if (0 != put_user(kargs.compatible, &uargs->compatible)) return -EFAULT;
54
55 return 0;
56 }
57
58 /* rk_ext : 从对 r5p0-01rel0 集成开始, 不再使用. */
59 #if 0
60 #define mali400_in_rk30_version 0x01
61 int get_mali_version_in_rk30_wrapper(struct mali_session_data *session_data, _mali_uk_get_mali_version_in_rk30_s __user *uargs)
62 {
63 _mali_uk_get_mali_version_in_rk30_s kargs;
64 MALI_CHECK_NON_NULL(uargs, -EINVAL);
65 kargs.ctx = (uintptr_t)session_data;
66 kargs.version = mali400_in_rk30_version;
67 if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT;
68 return 0;
69 }
70 #else
71 #include "../platform/rk/rk_ext.h"
get_rk_ko_version_wrapper(struct mali_session_data * session_data,_mali_rk_ko_version_s __user * uargs)72 int get_rk_ko_version_wrapper(struct mali_session_data *session_data, _mali_rk_ko_version_s __user *uargs)
73 {
74 _mali_rk_ko_version_s kargs;
75 MALI_CHECK_NON_NULL(uargs, -EINVAL);
76 kargs.ctx = (uintptr_t)session_data;
77 kargs.version = RK_KO_VER;
78 if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT;
79 return 0;
80 }
81 #endif
82
wait_for_notification_wrapper(struct mali_session_data * session_data,_mali_uk_wait_for_notification_s __user * uargs)83 int wait_for_notification_wrapper(struct mali_session_data *session_data, _mali_uk_wait_for_notification_s __user *uargs)
84 {
85 _mali_uk_wait_for_notification_s kargs;
86 _mali_osk_errcode_t err;
87
88 MALI_CHECK_NON_NULL(uargs, -EINVAL);
89
90 kargs.ctx = (uintptr_t)session_data;
91 err = _mali_ukk_wait_for_notification(&kargs);
92 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
93
94 if (_MALI_NOTIFICATION_CORE_SHUTDOWN_IN_PROGRESS != kargs.type) {
95 kargs.ctx = (uintptr_t)NULL; /* prevent kernel address to be returned to user space */
96 if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_wait_for_notification_s))) return -EFAULT;
97 } else {
98 if (0 != put_user(kargs.type, &uargs->type)) return -EFAULT;
99 }
100
101 return 0;
102 }
103
post_notification_wrapper(struct mali_session_data * session_data,_mali_uk_post_notification_s __user * uargs)104 int post_notification_wrapper(struct mali_session_data *session_data, _mali_uk_post_notification_s __user *uargs)
105 {
106 _mali_uk_post_notification_s kargs;
107 _mali_osk_errcode_t err;
108
109 MALI_CHECK_NON_NULL(uargs, -EINVAL);
110
111 kargs.ctx = (uintptr_t)session_data;
112
113 if (0 != get_user(kargs.type, &uargs->type)) {
114 return -EFAULT;
115 }
116
117 err = _mali_ukk_post_notification(&kargs);
118 if (_MALI_OSK_ERR_OK != err) {
119 return map_errcode(err);
120 }
121
122 return 0;
123 }
124
get_user_settings_wrapper(struct mali_session_data * session_data,_mali_uk_get_user_settings_s __user * uargs)125 int get_user_settings_wrapper(struct mali_session_data *session_data, _mali_uk_get_user_settings_s __user *uargs)
126 {
127 _mali_uk_get_user_settings_s kargs;
128 _mali_osk_errcode_t err;
129
130 MALI_CHECK_NON_NULL(uargs, -EINVAL);
131
132 kargs.ctx = (uintptr_t)session_data;
133 err = _mali_ukk_get_user_settings(&kargs);
134 if (_MALI_OSK_ERR_OK != err) {
135 return map_errcode(err);
136 }
137
138 kargs.ctx = 0; /* prevent kernel address to be returned to user space */
139 if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_get_user_settings_s))) return -EFAULT;
140
141 return 0;
142 }
143
request_high_priority_wrapper(struct mali_session_data * session_data,_mali_uk_request_high_priority_s __user * uargs)144 int request_high_priority_wrapper(struct mali_session_data *session_data, _mali_uk_request_high_priority_s __user *uargs)
145 {
146 _mali_uk_request_high_priority_s kargs;
147 _mali_osk_errcode_t err;
148
149 MALI_CHECK_NON_NULL(uargs, -EINVAL);
150
151 kargs.ctx = (uintptr_t)session_data;
152 err = _mali_ukk_request_high_priority(&kargs);
153
154 kargs.ctx = 0;
155
156 return map_errcode(err);
157 }
158
pending_submit_wrapper(struct mali_session_data * session_data,_mali_uk_pending_submit_s __user * uargs)159 int pending_submit_wrapper(struct mali_session_data *session_data, _mali_uk_pending_submit_s __user *uargs)
160 {
161 _mali_uk_pending_submit_s kargs;
162 _mali_osk_errcode_t err;
163
164 MALI_CHECK_NON_NULL(uargs, -EINVAL);
165
166 kargs.ctx = (uintptr_t)session_data;
167 err = _mali_ukk_pending_submit(&kargs);
168 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
169
170 return 0;
171 }
172