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  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA.
  21  *
  22  */
  23
  24 #ifndef __HMM_BO_COMMON_H__
  25 #define __HMM_BO_COMMON_H__
  26
  27 #define HMM_BO_NAME     "HMM"
  28
  29 /*
  30  * some common use micros
  31  */
  32 #define var_equal_return(var1, var2, exp, fmt, arg ...) \
  33         do { \
  34                 if ((var1) == (var2)) { \
  35                         dev_err(atomisp_dev, \
  36                         fmt, ## arg); \
  37                         return exp;\
  38                 } \
  39         } while (0)
  40
  41 #define var_equal_return_void(var1, var2, fmt, arg ...) \
  42         do { \
  43                 if ((var1) == (var2)) { \
  44                         dev_err(atomisp_dev, \
  45                         fmt, ## arg); \
  46                         return;\
  47                 } \
  48         } while (0)
  49
  50 #define var_equal_goto(var1, var2, label, fmt, arg ...) \
  51         do { \
  52                 if ((var1) == (var2)) { \
  53                         dev_err(atomisp_dev, \
  54                         fmt, ## arg); \
  55                         goto label;\
  56                 } \
  57         } while (0)
  58
  59 #define var_not_equal_goto(var1, var2, label, fmt, arg ...)     \
  60         do { \
  61                 if ((var1) != (var2)) { \
  62                         dev_err(atomisp_dev, \
  63                         fmt, ## arg); \
  64                         goto label;\
  65                 } \
  66         } while (0)
  67
  68 #define check_null_return(ptr, exp, fmt, arg ...)       \
  69                 var_equal_return(ptr, NULL, exp, fmt, ## arg)
  70
  71 #define check_null_return_void(ptr, fmt, arg ...)       \
  72                 var_equal_return_void(ptr, NULL, fmt, ## arg)
  73
  74 /* hmm_mem_stat is used to trace the hmm mem used by ISP pipe. The unit is page
  75  * number.
  76  *
  77  * res_size:  reserved mem pool size, being allocated from system at system boot time.
  78  *              res_size >= res_cnt.
  79  * sys_size:  system mem pool size, being allocated from system at camera running time.
  80  *              dyc_size:  dynamic mem pool size.
  81  *              dyc_thr:   dynamic mem pool high watermark.
  82  *              dyc_size <= dyc_thr.
  83  * usr_size:  user ptr mem size.
  84  *
  85  * res_cnt:   track the mem allocated from reserved pool at camera running time.
  86  * tol_cnt:   track the total mem used by ISP pipe at camera running time.
  87  */
  88 struct _hmm_mem_stat {
  89         int res_size;
  90         int sys_size;
  91         int dyc_size;
  92         int dyc_thr;
  93         int usr_size;
  94         int res_cnt;
  95         int tol_cnt;
  96 };
  97
  98 extern struct _hmm_mem_stat hmm_mem_stat;
  99
 100 #endif