1 // 2 // cache.c -- cache management routines 3 // 4 // $Id: //depot/rel/Foxhill/dot.8/Xtensa/OS/hal/cache.c#1 $ 5 6 // Copyright (c) 2002 Tensilica Inc. 7 // 8 // Permission is hereby granted, free of charge, to any person obtaining 9 // a copy of this software and associated documentation files (the 10 // "Software"), to deal in the Software without restriction, including 11 // without limitation the rights to use, copy, modify, merge, publish, 12 // distribute, sublicense, and/or sell copies of the Software, and to 13 // permit persons to whom the Software is furnished to do so, subject to 14 // the following conditions: 15 // 16 // The above copyright notice and this permission notice shall be included 17 // in all copies or substantial portions of the Software. 18 // 19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 23 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 27 #include <xtensa/config/core.h> 28 29 // size of the cache lines in log2(bytes) 30 const unsigned char Xthal_icache_linewidth = XCHAL_ICACHE_LINEWIDTH; 31 const unsigned char Xthal_dcache_linewidth = XCHAL_DCACHE_LINEWIDTH; 32 33 // size of the cache lines in bytes 34 const unsigned short Xthal_icache_linesize = XCHAL_ICACHE_LINESIZE; 35 const unsigned short Xthal_dcache_linesize = XCHAL_DCACHE_LINESIZE; 36 37 // number of cache sets in log2(lines per way) 38 const unsigned char Xthal_icache_setwidth = XCHAL_ICACHE_SETWIDTH; 39 const unsigned char Xthal_dcache_setwidth = XCHAL_DCACHE_SETWIDTH; 40 41 // cache set associativity (number of ways) 42 const unsigned int Xthal_icache_ways = XCHAL_ICACHE_WAYS; 43 const unsigned int Xthal_dcache_ways = XCHAL_DCACHE_WAYS; 44 45 // size of the caches in bytes (ways * 2^(linewidth + setwidth)) 46 const unsigned int Xthal_icache_size = XCHAL_ICACHE_SIZE; 47 const unsigned int Xthal_dcache_size = XCHAL_DCACHE_SIZE; 48 49 // cache features 50 const unsigned char Xthal_dcache_is_writeback = XCHAL_DCACHE_IS_WRITEBACK; 51 const unsigned char Xthal_icache_line_lockable = XCHAL_ICACHE_LINE_LOCKABLE; 52 const unsigned char Xthal_dcache_line_lockable = XCHAL_DCACHE_LINE_LOCKABLE; 53 54
