1 #ifndef CYGONCE_HAL_CACHE_H
2 #define CYGONCE_HAL_CACHE_H
4 //=============================================================================
8 // HAL cache control API
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 // Copyright (C) 2007 eCosCentric Ltd.
17 // eCos is free software; you can redistribute it and/or modify it under
18 // the terms of the GNU General Public License as published by the Free
19 // Software Foundation; either version 2 or (at your option) any later version.
21 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
22 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
26 // You should have received a copy of the GNU General Public License along
27 // with eCos; if not, write to the Free Software Foundation, Inc.,
28 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
30 // As a special exception, if other files instantiate templates or use macros
31 // or inline functions from this file, or you compile this file and link it
32 // with other works to produce a work based on this file, this file does not
33 // by itself cause the resulting work to be covered by the GNU General Public
34 // License. However the source code for this file must still be made available
35 // in accordance with section (3) of the GNU General Public License.
37 // This exception does not invalidate any other reasons why a work based on
38 // this file might be covered by the GNU General Public License.
40 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
41 // at http://sources.redhat.com/ecos/ecos-license/
42 // -------------------------------------------
43 //####ECOSGPLCOPYRIGHTEND####
44 //=============================================================================
45 //#####DESCRIPTIONBEGIN####
50 // Purpose: Cache control API
51 // Description: The macros defined here provide the HAL APIs for handling
52 // cache control operations.
54 // #include <cyg/hal/hal_cache.h>
57 //####DESCRIPTIONEND####
59 //=============================================================================
61 #include <cyg/infra/cyg_type.h>
63 //-----------------------------------------------------------------------------
67 #define HAL_DCACHE_SIZE 4096 // Size of data cache in bytes
68 #define HAL_DCACHE_LINE_SIZE 16 // Size of a data cache line
69 #define HAL_DCACHE_WAYS 2 // Associativity of the cache
72 #define HAL_ICACHE_SIZE 4096 // Size of cache in bytes
73 #define HAL_ICACHE_LINE_SIZE 16 // Size of a cache line
74 #define HAL_ICACHE_WAYS 2 // Associativity of the cache
76 #define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
77 #define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
79 //-----------------------------------------------------------------------------
80 // Global control of data cache
82 // Enable the data cache
83 #define HAL_DCACHE_ENABLE()
85 // Disable the data cache
86 #define HAL_DCACHE_DISABLE()
88 // Query the state of the data cache
89 #define HAL_DCACHE_IS_ENABLED(_state_) \
94 // Invalidate the entire cache
95 #define HAL_DCACHE_INVALIDATE_ALL()
97 // Synchronize the contents of the cache with memory.
98 #define HAL_DCACHE_SYNC()
100 //-----------------------------------------------------------------------------
101 // Global control of Instruction cache
103 // Enable the instruction cache
104 #define HAL_ICACHE_ENABLE()
106 // Disable the instruction cache
107 #define HAL_ICACHE_DISABLE()
109 // Query the state of the instruction cache
110 #define HAL_ICACHE_IS_ENABLED(_state_) \
115 // Invalidate the entire cache
116 #define HAL_ICACHE_INVALIDATE_ALL()
118 // Synchronize the contents of the cache with memory.
119 #define HAL_ICACHE_SYNC()
121 //-----------------------------------------------------------------------------
122 // Instruction cache line control
125 //-----------------------------------------------------------------------------
126 #endif // ifndef CYGONCE_HAL_CACHE_H
127 // End of hal_cache.h