drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm_common.h

   1 /*
   2  * Support for Medifield PNW Camera Imaging ISP subsystem.
   3  *
   4  * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
   5  *
   6  * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License version
  10  * 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  *
  18  */
  19
  20 #ifndef __HMM_BO_COMMON_H__
  21 #define __HMM_BO_COMMON_H__
  22
  23 #define HMM_BO_NAME     "HMM"
  24
  25 /*
  26  * some common use micros
  27  */
  28 #define var_equal_return(var1, var2, exp, fmt, arg ...) \
  29         do { \
  30                 if ((var1) == (var2)) { \
  31                         dev_err(atomisp_dev, \
  32                         fmt, ## arg); \
  33                         return exp;\
  34                 } \
  35         } while (0)
  36
  37 #define var_equal_return_void(var1, var2, fmt, arg ...) \
  38         do { \
  39                 if ((var1) == (var2)) { \
  40                         dev_err(atomisp_dev, \
  41                         fmt, ## arg); \
  42                         return;\
  43                 } \
  44         } while (0)
  45
  46 #define var_equal_goto(var1, var2, label, fmt, arg ...) \
  47         do { \
  48                 if ((var1) == (var2)) { \
  49                         dev_err(atomisp_dev, \
  50                         fmt, ## arg); \
  51                         goto label;\
  52                 } \
  53         } while (0)
  54
  55 #define var_not_equal_goto(var1, var2, label, fmt, arg ...)     \
  56         do { \
  57                 if ((var1) != (var2)) { \
  58                         dev_err(atomisp_dev, \
  59                         fmt, ## arg); \
  60                         goto label;\
  61                 } \
  62         } while (0)
  63
  64 #define check_null_return(ptr, exp, fmt, arg ...)       \
  65                 var_equal_return(ptr, NULL, exp, fmt, ## arg)
  66
  67 #define check_null_return_void(ptr, fmt, arg ...)       \
  68                 var_equal_return_void(ptr, NULL, fmt, ## arg)
  69
  70 /* hmm_mem_stat is used to trace the hmm mem used by ISP pipe. The unit is page
  71  * number.
  72  *
  73  * res_size:  reserved mem pool size, being allocated from system at system boot time.
  74  *              res_size >= res_cnt.
  75  * sys_size:  system mem pool size, being allocated from system at camera running time.
  76  *              dyc_size:  dynamic mem pool size.
  77  *              dyc_thr:   dynamic mem pool high watermark.
  78  *              dyc_size <= dyc_thr.
  79  * usr_size:  user ptr mem size.
  80  *
  81  * res_cnt:   track the mem allocated from reserved pool at camera running time.
  82  * tol_cnt:   track the total mem used by ISP pipe at camera running time.
  83  */
  84 struct _hmm_mem_stat {
  85         int res_size;
  86         int sys_size;
  87         int dyc_size;
  88         int dyc_thr;
  89         int usr_size;
  90         int res_cnt;
  91         int tol_cnt;
  92 };
  93
  94 extern struct _hmm_mem_stat hmm_mem_stat;
  95
  96 #endif