2 * Copyright (C) 2010-2014, 2016 ARM Limited. All rights reserved.
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.
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.
11 #ifndef __UMP_KERNEL_COMMON_H__
12 #define __UMP_KERNEL_COMMON_H__
14 #include "ump_kernel_types.h"
15 #include "ump_kernel_interface.h"
16 #include "ump_kernel_descriptor_mapping.h"
17 #include "ump_kernel_random_mapping.h"
18 #include "ump_kernel_memory_backend.h"
22 extern int ump_debug_level;
23 #define UMP_DEBUG_PRINT(args) _mali_osk_dbgmsg args
24 #define UMP_DEBUG_CODE(args) args
25 #define DBG_MSG(level,args) do { /* args should be in brackets */ \
26 ((level) <= ump_debug_level)?\
27 UMP_DEBUG_PRINT(("UMP<" #level ">: ")), \
28 UMP_DEBUG_PRINT(args):0; \
31 #define DBG_MSG_IF(level,condition,args) /* args should be in brackets */ \
32 if((condition)&&((level) <= ump_debug_level)) {\
33 UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
34 UMP_DEBUG_PRINT(args); \
37 #define DBG_MSG_ELSE(level,args) /* args should be in brackets */ \
38 else if((level) <= ump_debug_level) { \
39 UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
40 UMP_DEBUG_PRINT(args); \
43 #define DEBUG_ASSERT_POINTER(pointer) do {if( (pointer)== NULL) MSG_ERR(("NULL pointer " #pointer)); } while(0)
44 #define DEBUG_ASSERT(condition) do {if(!(condition)) MSG_ERR(("ASSERT failed: " #condition)); } while(0)
46 #define UMP_DEBUG_PRINT(args) do {} while(0)
47 #define UMP_DEBUG_CODE(args)
48 #define DBG_MSG(level,args) do {} while(0)
49 #define DBG_MSG_IF(level,condition,args) do {} while(0)
50 #define DBG_MSG_ELSE(level,args) do {} while(0)
51 #define DEBUG_ASSERT(condition) do {} while(0)
52 #define DEBUG_ASSERT_POINTER(pointer) do {} while(0)
55 #define MSG_ERR(args) do{ /* args should be in brackets */ \
56 _mali_osk_dbgmsg("UMP: ERR: %s\n" ,__FILE__); \
57 _mali_osk_dbgmsg( " %s()%4d\n", __FUNCTION__, __LINE__) ; \
58 _mali_osk_dbgmsg args ; \
59 _mali_osk_dbgmsg("\n"); \
62 #define MSG(args) do{ /* args should be in brackets */ \
63 _mali_osk_dbgmsg("UMP: "); \
64 _mali_osk_dbgmsg args; \
70 * This struct is used to store per session data.
71 * A session is created when someone open() the device, and
72 * closed when someone close() it or the user space application terminates.
74 typedef struct ump_session_data {
75 _mali_osk_list_t list_head_session_memory_list; /**< List of ump allocations made by the process (elements are ump_session_memory_list_element) */
76 _mali_osk_list_t list_head_session_memory_mappings_list; /**< List of ump_memory_allocations mapped in */
78 _mali_osk_mutex_t *lock;
79 ump_descriptor_mapping *cookies_map; /**< Secure mapping of cookies from _ump_ukk_map_mem() */
80 int cache_operations_ongoing;
81 int has_pending_level1_cache_flush;
87 * This struct is used to track the UMP memory references a session has.
88 * We need to track this in order to be able to clean up after user space processes
89 * which don't do it themself (e.g. due to a crash or premature termination).
91 typedef struct ump_session_memory_list_element {
92 struct ump_dd_mem *mem;
93 _mali_osk_list_t list;
94 } ump_session_memory_list_element;
99 * Device specific data, created when device driver is loaded, and then kept as the global variable device.
101 typedef struct ump_dev {
102 ump_random_mapping *secure_id_map;
103 ump_memory_backend *backend;
108 extern int ump_debug_level;
109 extern struct ump_dev device;
111 _mali_osk_errcode_t ump_kernel_constructor(void);
112 void ump_kernel_destructor(void);
113 int ump_map_errcode(_mali_osk_errcode_t err);
116 * variables from user space cannot be dereferenced from kernel space; tagging them
117 * with __user allows the GCC compiler to generate a warning. Other compilers may
118 * not support this so we define it here as an empty macro if the compiler doesn't
125 #endif /* __UMP_KERNEL_COMMON_H__ */