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annotate packages/hal/synth/arch/current/include/hal_cache.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
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children d2c90368aeef
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1 #ifndef CYGONCE_HAL_CACHE_H
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2 #define CYGONCE_HAL_CACHE_H
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3
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4 //=============================================================================
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5 //
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6 // hal_cache.h
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7 //
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8 // HAL cache control API
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9 //
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10 //=============================================================================
208
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11 //####ECOSGPLCOPYRIGHTBEGIN####
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12 // -------------------------------------------
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13 // This file is part of eCos, the Embedded Configurable Operating System.
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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15 //
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16 // eCos is free software; you can redistribute it and/or modify it under
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17 // the terms of the GNU General Public License as published by the Free
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18 // Software Foundation; either version 2 or (at your option) any later version.
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19 //
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 // for more details.
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24 //
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25 // You should have received a copy of the GNU General Public License along
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26 // with eCos; if not, write to the Free Software Foundation, Inc.,
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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28 //
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29 // As a special exception, if other files instantiate templates or use macros
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30 // or inline functions from this file, or you compile this file and link it
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31 // with other works to produce a work based on this file, this file does not
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32 // by itself cause the resulting work to be covered by the GNU General Public
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33 // License. However the source code for this file must still be made available
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34 // in accordance with section (3) of the GNU General Public License.
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35 //
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36 // This exception does not invalidate any other reasons why a work based on
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37 // this file might be covered by the GNU General Public License.
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38 //
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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40 // at http://sources.redhat.com/ecos/ecos-license
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41 // -------------------------------------------
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42 //####ECOSGPLCOPYRIGHTEND####
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43 //=============================================================================
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44 //#####DESCRIPTIONBEGIN####
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45 //
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46 // Author(s): nickg
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47 // Contributors:proven,bartv
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48 // Date: 1998-10-29
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49 // Purpose: Cache control API
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50 // Description: The macros defined here provide the HAL APIs for handling
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51 // cache control operations.
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52 // Usage:
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53 // #include <cyg/hal/hal_cache.h>
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54 // ...
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55 //
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56 //####DESCRIPTIONEND####
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57 //
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58 //=============================================================================
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59
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60 // ----------------------------------------------------------------------------
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61 // The synthetic target does not have a cache. The underlying hardware
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62 // is quite likely to have a cache, but the synthetic target code has
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63 // no way of manipulating it. A minimal set of no-op #define's is
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64 // required.
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65
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66 #include <cyg/infra/cyg_type.h>
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67
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68 #define HAL_ICACHE_ENABLE()
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69 #define HAL_ICACHE_DISABLE()
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70 #define HAL_ICACHE_SYNC()
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71 #define HAL_ICACHE_INVALIDATE_ALL()
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72 #define HAL_ICACHE_IS_ENABLED(_state_) \
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73 CYG_MACRO_START \
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74 (_state_) = 0; \
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75 CYG_MACRO_END
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76
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77 #define HAL_DCACHE_ENABLE()
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78 #define HAL_DCACHE_DISABLE()
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79 #define HAL_DCACHE_SYNC()
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80 #define HAL_DCACHE_INVALIDATE_ALL()
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81 #define HAL_DCACHE_IS_ENABLED(_state_) \
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82 CYG_MACRO_START \
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83 (_state_) = 0; \
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84 CYG_MACRO_END
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85
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86 //-----------------------------------------------------------------------------
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87 #endif // ifndef CYGONCE_HAL_CACHE_H
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88 // End of hal_cache.h