| 1 | /* |
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| 2 | * Copyright (c) 2011 Aeroflex Gaisler |
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| 3 | * |
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| 4 | * BSD license: |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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| 7 | * of this software and associated documentation files (the "Software"), to deal |
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| 8 | * in the Software without restriction, including without limitation the rights |
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| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 10 | * copies of the Software, and to permit persons to whom the Software is |
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| 11 | * furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included in |
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| 14 | * all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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| 22 | * THE SOFTWARE. |
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| 23 | */ |
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| 24 | |
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| 25 | |
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| 26 | #include <asm-leon/elfmacro.h> |
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| 27 | #include <asm-leon/leon.h> |
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| 28 | #include <asm-leon/leonstack.h> |
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| 29 | #include <asm-leon/contextswitch.h> |
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| 30 | #include <asm-leon/winmacros.h> |
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| 31 | #include <asm-leon/leonbare_kernel.h> |
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| 32 | |
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| 33 | FUNC_EXPORT(leonbare_leon23_loadnocache) |
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| 34 | FUNC_EXPORT(leonbare_leon23_loadnocache16) |
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| 35 | FUNC_EXPORT(leonbare_leon23_loadnocache8) |
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| 36 | |
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| 37 | FUNC_EXPORT(leonbare_leon3_loadnocache) |
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| 38 | FUNC_EXPORT(leonbare_leon3_loadnocache16) |
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| 39 | FUNC_EXPORT(leonbare_leon3_loadnocache8) |
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| 40 | |
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| 41 | |
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| 42 | FUNC_EXPORT(leonbare_leon23_storenocache) |
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| 43 | FUNC_EXPORT(leonbare_leon23_storenocache16) |
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| 44 | FUNC_EXPORT(leonbare_leon23_storenocache8) |
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| 45 | |
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| 46 | FUNC_IMPORT(_leon_version) |
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| 47 | |
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| 48 | .text |
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| 49 | |
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| 50 | /* =================================== */ |
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| 51 | /* LEON2 / 3 */ |
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| 52 | /* load with forceing cache miss */ |
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| 53 | FUNC_BEGIN(leonbare_leon23_loadnocache) /* use only %o0,%o1,%o7 */ |
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| 54 | lda [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 55 | retl |
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| 56 | nop |
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| 57 | FUNC_END(leonbare_leon23_loadnocache) |
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| 58 | |
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| 59 | /* load with forceing cache miss */ |
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| 60 | FUNC_BEGIN(leonbare_leon23_loadnocache16) |
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| 61 | lduha [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 62 | retl |
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| 63 | nop |
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| 64 | FUNC_END(leonbare_leon23_loadnocache16) |
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| 65 | |
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| 66 | /* load with forceing cache miss */ |
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| 67 | FUNC_BEGIN(leonbare_leon23_loadnocache8) |
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| 68 | lduba [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 69 | retl |
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| 70 | nop |
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| 71 | FUNC_END(leonbare_leon23_loadnocache8) |
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| 72 | |
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| 73 | /* write through cache */ |
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| 74 | FUNC_BEGIN(leonbare_leon23_storenocache) /* use only %o0,%o1,%o7 */ |
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| 75 | st %o1, [%o0] |
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| 76 | retl |
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| 77 | mov %o1,%o0 |
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| 78 | FUNC_END(leonbare_leon23_storenocache) |
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| 79 | |
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| 80 | /* write through cache */ |
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| 81 | FUNC_BEGIN(leonbare_leon23_storenocache16) |
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| 82 | sth %o1, [%o0] |
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| 83 | retl |
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| 84 | mov %o1,%o0 |
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| 85 | FUNC_END(leonbare_leon23_storenocache16) |
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| 86 | |
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| 87 | /* write through cache */ |
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| 88 | FUNC_BEGIN(leonbare_leon23_storenocache8) |
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| 89 | stb %o1, [%o0] |
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| 90 | retl |
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| 91 | mov %o1,%o0 |
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| 92 | FUNC_END(leonbare_leon23_storenocache8) |
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| 93 | |
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| 94 | |
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| 95 | |
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| 96 | /* =================================== */ |
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| 97 | /* LEON3 only */ |
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| 98 | /* load with forceing cache miss */ |
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| 99 | FUNC_BEGIN(leonbare_leon3_loadnocache) /* use only %o0,%o1,%o7 */ |
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| 100 | retl |
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| 101 | lda [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 102 | FUNC_END(leonbare_leon3_loadnocache) |
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| 103 | |
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| 104 | /* load with forceing cache miss */ |
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| 105 | FUNC_BEGIN(leonbare_leon3_loadnocache16) |
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| 106 | retl |
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| 107 | lduha [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 108 | FUNC_END(leonbare_leon3_loadnocache16) |
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| 109 | |
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| 110 | /* load with forceing cache miss */ |
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| 111 | FUNC_BEGIN(leonbare_leon3_loadnocache8) |
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| 112 | retl |
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| 113 | lduba [%o0] ASI_LEON3_CACHEMISS, %o0 |
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| 114 | FUNC_END(leonbare_leon3_loadnocache8) |
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| 115 | |
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| 116 | |
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| 117 | |
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