arch/mips/powertv/asic/prealloc.h

   1 /*
   2  * Definitions for memory preallocations
   3  *
   4  * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _ARCH_MIPS_POWERTV_ASIC_PREALLOC_H
  22 #define _ARCH_MIPS_POWERTV_ASIC_PREALLOC_H
  23
  24 #define KIBIBYTE(n) ((n) * 1024)    /* Number of kibibytes */
  25 #define MEBIBYTE(n) ((n) * KIBIBYTE(1024)) /* Number of mebibytes */
  26
  27 /* "struct resource" array element definition */
  28 #define PREALLOC(NAME, START, END, FLAGS) {     \
  29                 .name = (NAME),                 \
  30                 .start = (START),               \
  31                 .end = (END),                   \
  32                 .flags = (FLAGS)                \
  33         },
  34
  35 /* Individual resources in the preallocated resource arrays are defined using
  36  *  macros.  These macros are conditionally defined based on their
  37  *  corresponding kernel configuration flag:
  38  *    - CONFIG_PREALLOC_NORMAL: preallocate resources for a normal settop box
  39  *    - CONFIG_PREALLOC_TFTP: preallocate the TFTP download resource
  40  *    - CONFIG_PREALLOC_DOCSIS: preallocate the DOCSIS resource
  41  *    - CONFIG_PREALLOC_PMEM: reserve space for persistent memory
  42  */
  43 #ifdef CONFIG_PREALLOC_NORMAL
  44 #define PREALLOC_NORMAL(name, start, end, flags) \
  45    PREALLOC(name, start, end, flags)
  46 #else
  47 #define PREALLOC_NORMAL(name, start, end, flags)
  48 #endif
  49
  50 #ifdef CONFIG_PREALLOC_TFTP
  51 #define PREALLOC_TFTP(name, start, end, flags) \
  52    PREALLOC(name, start, end, flags)
  53 #else
  54 #define PREALLOC_TFTP(name, start, end, flags)
  55 #endif
  56
  57 #ifdef CONFIG_PREALLOC_DOCSIS
  58 #define PREALLOC_DOCSIS(name, start, end, flags) \
  59    PREALLOC(name, start, end, flags)
  60 #else
  61 #define PREALLOC_DOCSIS(name, start, end, flags)
  62 #endif
  63
  64 #ifdef CONFIG_PREALLOC_PMEM
  65 #define PREALLOC_PMEM(name, start, end, flags) \
  66    PREALLOC(name, start, end, flags)
  67 #else
  68 #define PREALLOC_PMEM(name, start, end, flags)
  69 #endif
  70 #endif