LXR linux/drivers/staging/media/atomisp/include/hmm/hmm

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Support for Medifield PNW Camera Imaging ISP subsystem.
   4 *
   5 * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
   6 *
   7 * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
   8 *
   9 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License version
  11 * 2 as published by the Free Software Foundation.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 *
  19 */
  20
  21#ifndef __HMM_BO_COMMON_H__
  22#define __HMM_BO_COMMON_H__
  23
  24#define HMM_BO_NAME     "HMM"
  25
  26/*
  27 * some common use micros
  28 */
  29#define var_equal_return(var1, var2, exp, fmt, arg ...) \
  30        do { \
  31                if ((var1) == (var2)) { \
  32                        dev_err(atomisp_dev, \
  33                        fmt, ## arg); \
  34                        return exp;\
  35                } \
  36        } while (0)
  37
  38#define var_equal_return_void(var1, var2, fmt, arg ...) \
  39        do { \
  40                if ((var1) == (var2)) { \
  41                        dev_err(atomisp_dev, \
  42                        fmt, ## arg); \
  43                        return;\
  44                } \
  45        } while (0)
  46
  47#define var_equal_goto(var1, var2, label, fmt, arg ...) \
  48        do { \
  49                if ((var1) == (var2)) { \
  50                        dev_err(atomisp_dev, \
  51                        fmt, ## arg); \
  52                        goto label;\
  53                } \
  54        } while (0)
  55
  56#define var_not_equal_goto(var1, var2, label, fmt, arg ...)     \
  57        do { \
  58                if ((var1) != (var2)) { \
  59                        dev_err(atomisp_dev, \
  60                        fmt, ## arg); \
  61                        goto label;\
  62                } \
  63        } while (0)
  64
  65#define check_null_return(ptr, exp, fmt, arg ...)       \
  66                var_equal_return(ptr, NULL, exp, fmt, ## arg)
  67
  68#define check_null_return_void(ptr, fmt, arg ...)       \
  69                var_equal_return_void(ptr, NULL, fmt, ## arg)
  70
  71/* hmm_mem_stat is used to trace the hmm mem used by ISP pipe. The unit is page
  72 * number.
  73 *
  74 * res_size:  reserved mem pool size, being allocated from system at system boot time.
  75 *              res_size >= res_cnt.
  76 * sys_size:  system mem pool size, being allocated from system at camera running time.
  77 *              dyc_size:  dynamic mem pool size.
  78 *              dyc_thr:   dynamic mem pool high watermark.
  79 *              dyc_size <= dyc_thr.
  80 * usr_size:  user ptr mem size.
  81 *
  82 * res_cnt:   track the mem allocated from reserved pool at camera running time.
  83 * tol_cnt:   track the total mem used by ISP pipe at camera running time.
  84 */
  85struct _hmm_mem_stat {
  86        int res_size;
  87        int sys_size;
  88        int dyc_size;
  89        int dyc_thr;
  90        int usr_size;
  91        int res_cnt;
  92        int tol_cnt;
  93};
  94
  95extern struct _hmm_mem_stat hmm_mem_stat;
  96
  97#endif
  98