diff options
Diffstat (limited to 'drivers/gpu/mali/ump/common/ump_kernel_common.h')
| -rw-r--r-- | drivers/gpu/mali/ump/common/ump_kernel_common.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/gpu/mali/ump/common/ump_kernel_common.h b/drivers/gpu/mali/ump/common/ump_kernel_common.h new file mode 100644 index 00000000..efc6c3f6 --- /dev/null +++ b/drivers/gpu/mali/ump/common/ump_kernel_common.h @@ -0,0 +1,125 @@ +/* + * 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__ */ |