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/*
* Copyright (C) 2010-2014 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.
*/
#ifndef __UMP_KERNEL_COMMON_H__
#define __UMP_KERNEL_COMMON_H__
#include "ump_kernel_types.h"
#include "ump_kernel_interface.h"
#include "ump_kernel_descriptor_mapping.h"
#include "ump_kernel_random_mapping.h"
#include "ump_kernel_memory_backend.h"
#ifdef DEBUG
extern int ump_debug_level;
#define UMP_DEBUG_PRINT(args) _mali_osk_dbgmsg args
#define UMP_DEBUG_CODE(args) args
#define DBG_MSG(level,args) do { /* args should be in brackets */ \
((level) <= ump_debug_level)?\
UMP_DEBUG_PRINT(("UMP<" #level ">: ")), \
UMP_DEBUG_PRINT(args):0; \
} while (0)
#define DBG_MSG_IF(level,condition,args) /* args should be in brackets */ \
if((condition)&&((level) <= ump_debug_level)) {\
UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
UMP_DEBUG_PRINT(args); \
}
#define DBG_MSG_ELSE(level,args) /* args should be in brackets */ \
else if((level) <= ump_debug_level) { \
UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \
UMP_DEBUG_PRINT(args); \
}
#define DEBUG_ASSERT_POINTER(pointer) do {if( (pointer)== NULL) MSG_ERR(("NULL pointer " #pointer)); } while(0)
#define DEBUG_ASSERT(condition) do {if(!(condition)) MSG_ERR(("ASSERT failed: " #condition)); } while(0)
#else /* DEBUG */
#define UMP_DEBUG_PRINT(args) do {} while(0)
#define UMP_DEBUG_CODE(args)
#define DBG_MSG(level,args) do {} while(0)
#define DBG_MSG_IF(level,condition,args) do {} while(0)
#define DBG_MSG_ELSE(level,args) do {} while(0)
#define DEBUG_ASSERT(condition) do {} while(0)
#define DEBUG_ASSERT_POINTER(pointer) do {} while(0)
#endif /* DEBUG */
#define MSG_ERR(args) do{ /* args should be in brackets */ \
_mali_osk_dbgmsg("UMP: ERR: %s\n" ,__FILE__); \
_mali_osk_dbgmsg( " %s()%4d\n", __FUNCTION__, __LINE__) ; \
_mali_osk_dbgmsg args ; \
_mali_osk_dbgmsg("\n"); \
} while(0)
#define MSG(args) do{ /* args should be in brackets */ \
_mali_osk_dbgmsg("UMP: "); \
_mali_osk_dbgmsg args; \
} while (0)
/*
* This struct is used to store per session data.
* A session is created when someone open() the device, and
* closed when someone close() it or the user space application terminates.
*/
typedef struct ump_session_data {
_mali_osk_list_t list_head_session_memory_list; /**< List of ump allocations made by the process (elements are ump_session_memory_list_element) */
_mali_osk_list_t list_head_session_memory_mappings_list; /**< List of ump_memory_allocations mapped in */
int api_version;
_mali_osk_mutex_t *lock;
ump_descriptor_mapping *cookies_map; /**< Secure mapping of cookies from _ump_ukk_map_mem() */
int cache_operations_ongoing;
int has_pending_level1_cache_flush;
} ump_session_data;
/*
* This struct is used to track the UMP memory references a session has.
* We need to track this in order to be able to clean up after user space processes
* which don't do it themself (e.g. due to a crash or premature termination).
*/
typedef struct ump_session_memory_list_element {
struct ump_dd_mem *mem;
_mali_osk_list_t list;
} ump_session_memory_list_element;
/*
* Device specific data, created when device driver is loaded, and then kept as the global variable device.
*/
typedef struct ump_dev {
ump_random_mapping *secure_id_map;
ump_memory_backend *backend;
} ump_dev;
extern int ump_debug_level;
extern struct ump_dev device;
_mali_osk_errcode_t ump_kernel_constructor(void);
void ump_kernel_destructor(void);
int map_errcode(_mali_osk_errcode_t err);
/**
* variables from user space cannot be dereferenced from kernel space; tagging them
* with __user allows the GCC compiler to generate a warning. Other compilers may
* not support this so we define it here as an empty macro if the compiler doesn't
* define it.
*/
#ifndef __user
#define __user
#endif
#endif /* __UMP_KERNEL_COMMON_H__ */
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