drivers/misc/mediatek/gpu/mt8127/mali/ump/common/ump_kernel_common.h

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2008-2013 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10
  11 #ifndef __UMP_KERNEL_COMMON_H__
  12 #define __UMP_KERNEL_COMMON_H__
  13
  14 #include "ump_kernel_types.h"
  15 #include "ump_kernel_interface.h"
  16 #include "ump_kernel_descriptor_mapping.h"
  17 #include "ump_kernel_memory_backend.h"
  18
  19
  20 #ifdef DEBUG
  21 extern int ump_debug_level;
  22 #define UMP_DEBUG_PRINT(args) _mali_osk_dbgmsg args
  23 #define UMP_DEBUG_CODE(args) args
  24 #define DBG_MSG(level,args)  do { /* args should be in brackets */ \
  25                 ((level) <=  ump_debug_level)?\
  26                 UMP_DEBUG_PRINT(("UMP<" #level ">: ")), \
  27                 UMP_DEBUG_PRINT(args):0; \
  28                 } while (0)
  29
  30 #define DBG_MSG_IF(level,condition,args) /* args should be in brackets */ \
  31                 if((condition)&&((level) <=  ump_debug_level)) {\
  32                 UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
  33                 UMP_DEBUG_PRINT(args); \
  34                 }
  35
  36 #define DBG_MSG_ELSE(level,args) /* args should be in brackets */ \
  37                 else if((level) <=  ump_debug_level) { \
  38                 UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
  39                 UMP_DEBUG_PRINT(args); \
  40                 }
  41
  42 #define DEBUG_ASSERT_POINTER(pointer) do  {if( (pointer)== NULL) MSG_ERR(("NULL pointer " #pointer)); } while(0)
  43 #define DEBUG_ASSERT(condition) do  {if(!(condition)) MSG_ERR(("ASSERT failed: " #condition)); } while(0)
  44 #else /* DEBUG */
  45 #define UMP_DEBUG_PRINT(args) do {} while(0)
  46 #define UMP_DEBUG_CODE(args)
  47 #define DBG_MSG(level,args) do {} while(0)
  48 #define DBG_MSG_IF(level,condition,args) do {} while(0)
  49 #define DBG_MSG_ELSE(level,args) do {} while(0)
  50 #define DEBUG_ASSERT(condition) do {} while(0)
  51 #define DEBUG_ASSERT_POINTER(pointer) do  {} while(0)
  52 #endif /* DEBUG */
  53
  54 #define MSG_ERR(args) do{ /* args should be in brackets */ \
  55          _mali_osk_dbgmsg("UMP: ERR: %s\n" ,__FILE__); \
  56          _mali_osk_dbgmsg( "           %s()%4d\n", __FUNCTION__, __LINE__) ; \
  57          _mali_osk_dbgmsg args ; \
  58          _mali_osk_dbgmsg("\n"); \
  59         } while(0)
  60
  61 #define MSG(args) do{ /* args should be in brackets */ \
  62                  _mali_osk_dbgmsg("UMP: "); \
  63                  _mali_osk_dbgmsg args; \
  64                 } while (0)
  65
  66
  67
  68 /*
  69  * This struct is used to store per session data.
  70  * A session is created when someone open() the device, and
  71  * closed when someone close() it or the user space application terminates.
  72  */
  73 typedef struct ump_session_data {
  74         _mali_osk_list_t list_head_session_memory_list;  /**< List of ump allocations made by the process (elements are ump_session_memory_list_element) */
  75         _mali_osk_list_t list_head_session_memory_mappings_list; /**< List of ump_memory_allocations mapped in */
  76         int api_version;
  77         _mali_osk_mutex_t *lock;
  78         ump_descriptor_mapping * cookies_map; /**< Secure mapping of cookies from _ump_ukk_map_mem() */
  79         int cache_operations_ongoing;
  80         int has_pending_level1_cache_flush;
  81 } ump_session_data;
  82
  83
  84
  85 /*
  86  * This struct is used to track the UMP memory references a session has.
  87  * We need to track this in order to be able to clean up after user space processes
  88  * which don't do it themself (e.g. due to a crash or premature termination).
  89  */
  90 typedef struct ump_session_memory_list_element {
  91         struct ump_dd_mem * mem;
  92         _mali_osk_list_t list;
  93 } ump_session_memory_list_element;
  94
  95
  96
  97 /*
  98  * Device specific data, created when device driver is loaded, and then kept as the global variable device.
  99  */
 100 typedef struct ump_dev {
 101         _mali_osk_mutex_t *secure_id_map_lock;
 102         ump_descriptor_mapping * secure_id_map;
 103         ump_memory_backend * backend;
 104 } ump_dev;
 105
 106
 107
 108 extern int ump_debug_level;
 109 extern struct ump_dev device;
 110
 111 _mali_osk_errcode_t ump_kernel_constructor(void);
 112 void ump_kernel_destructor(void);
 113 int map_errcode( _mali_osk_errcode_t err );
 114
 115 /**
 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
 119  * define it.
 120  */
 121 #ifndef __user
 122 #define __user
 123 #endif
 124
 125 #endif /* __UMP_KERNEL_COMMON_H__ */