kernel_amazon_mt8127-common/include/linux/ion_drv.h

#ifndef __ION_DRV_H__
#define __ION_DRV_H__
#include <linux/version.h>

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0))
#include <ion.h>
#else
#include <linux/ion.h>
#endif

#include <linux/ion_debugger.h>
// Structure definitions

typedef enum 
{
    ION_CMD_SYSTEM,
    ION_CMD_MULTIMEDIA
} ION_CMDS;

typedef enum
{
    ION_MM_CONFIG_BUFFER,
    ION_MM_SET_DEBUG_INFO,
    ION_MM_GET_DEBUG_INFO,
    ION_MM_SET_SF_BUF_INFO,
    ION_MM_GET_SF_BUF_INFO
} ION_MM_CMDS;

typedef enum
{
    ION_SYS_CACHE_SYNC,
    ION_SYS_GET_PHYS,
    ION_SYS_GET_CLIENT,
    ION_SYS_RECORD,
    ION_SYS_SET_HANDLE_BACKTRACE,
    ION_SYS_SET_CLIENT_NAME,
} ION_SYS_CMDS;

typedef enum
{
    ION_CACHE_CLEAN_BY_RANGE,
    ION_CACHE_INVALID_BY_RANGE,
    ION_CACHE_FLUSH_BY_RANGE,
    ION_CACHE_CLEAN_BY_RANGE_USE_VA,
    ION_CACHE_INVALID_BY_RANGE_USE_VA,
    ION_CACHE_FLUSH_BY_RANGE_USE_VA,   
    ION_CACHE_CLEAN_ALL,
    ION_CACHE_INVALID_ALL,
    ION_CACHE_FLUSH_ALL
} ION_CACHE_SYNC_TYPE;

typedef enum
{
    ION_ERROR_CONFIG_LOCKED = 0x10000
} ION_ERROR_E;

typedef struct ion_sys_cache_sync_param
{
	union
	{
	    ion_user_handle_t handle;
	    struct ion_handle* kernel_handle;
	};
    void* va;
    unsigned int size;
    ION_CACHE_SYNC_TYPE sync_type;
} ion_sys_cache_sync_param_t;

typedef struct ion_sys_get_phys_param
{
	union
	{
	    ion_user_handle_t handle;
	    struct ion_handle* kernel_handle;
	};
    unsigned int phy_addr;
    unsigned int len;
} ion_sys_get_phys_param_t;

#define ION_MM_DBG_NAME_LEN 16
#define ION_MM_SF_BUF_INFO_LEN 16

typedef struct __ion_sys_client_name
{
    char name[ION_MM_DBG_NAME_LEN];
}ion_sys_client_name_t;

typedef struct ion_sys_get_client_param
{
    unsigned int client;
} ion_sys_get_client_param_t;

typedef struct ion_sys_data
{
    ION_SYS_CMDS sys_cmd;
    union
    {
        ion_sys_cache_sync_param_t cache_sync_param;
        ion_sys_get_phys_param_t   get_phys_param;
        ion_sys_get_client_param_t get_client_param;
        ion_sys_client_name_t client_name_param;
	    ion_sys_record_t record_param;
    };
} ion_sys_data_t;

typedef struct ion_mm_config_buffer_param
{
	union
	{
	    ion_user_handle_t handle;
	    struct ion_handle* kernel_handle;
	};
    int eModuleID;
    unsigned int security;
    unsigned int coherent;
} ion_mm_config_buffer_param_t;


typedef struct __ion_mm_buf_debug_info
{
	union
	{
	    ion_user_handle_t handle;
	    struct ion_handle* kernel_handle;
	};
    char dbg_name[ION_MM_DBG_NAME_LEN];
    unsigned int value1;
    unsigned int value2;
    unsigned int value3;
    unsigned int value4;
}ion_mm_buf_debug_info_t;

typedef struct __ion_mm_sf_buf_info
{
	union
	{
	    ion_user_handle_t handle;
	    struct ion_handle* kernel_handle;
	};
    unsigned int info[ION_MM_SF_BUF_INFO_LEN];
}ion_mm_sf_buf_info_t;

typedef struct ion_mm_data
{
    ION_MM_CMDS mm_cmd;
    union
    {
        ion_mm_config_buffer_param_t config_buffer_param;
        ion_mm_buf_debug_info_t  buf_debug_info_param;
        ion_mm_sf_buf_info_t sf_buf_info_param;
    };
} ion_mm_data_t;

#ifdef __KERNEL__

#define ION_LOG_TAG "ion_dbg"
#include <linux/xlog.h>
#define IONMSG(string, args...)	printk("[ION]"string,##args)
#define IONTMP(string, args...)  printk("[ION]"string,##args)
#define ion_aee_print(string, args...) do{\
    char ion_name[100];\
    snprintf(ion_name,100, "["ION_LOG_TAG"]"string, ##args); \
  aee_kernel_warning(ion_name, "["ION_LOG_TAG"]error:"string,##args);  \
}while(0)

// Exported global variables
extern struct ion_device *g_ion_device;

// Exported functions
long ion_kernel_ioctl(struct ion_client *client, unsigned int cmd, unsigned long arg);
struct ion_handle* ion_drv_get_handle(struct ion_client* client, int user_handle, struct ion_handle* kernel_handle, int from_kernel);
int ion_drv_put_kernel_handle(void *kernel_handle);

/**
 * ion_mm_heap_total_memory() - get mm heap total buffer size.
 */
size_t ion_mm_heap_total_memory(void);
/**
 * ion_mm_heap_total_memory() - get mm heap buffer detail info.
 */
void ion_mm_heap_memory_detail(void);
#endif

#endif