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418 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1851 | jermar | 29 | /** @addtogroup sparc64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
1860 | jermar | 35 | #ifndef KERN_sparc64_CONTEXT_H_ |
36 | #define KERN_sparc64_CONTEXT_H_ |
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418 | jermar | 37 | |
1948 | jermar | 38 | #include <arch/stack.h> |
39 | #include <arch/types.h> |
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40 | #include <align.h> |
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525 | jermar | 41 | |
42 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
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418 | jermar | 43 | |
426 | jermar | 44 | #ifdef context_set |
45 | #undef context_set |
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46 | #endif |
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47 | |||
2025 | jermar | 48 | #define context_set(c, _pc, stack, size) \ |
49 | (c)->pc = ((uintptr_t) _pc) - 8; \ |
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50 | (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), \ |
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51 | STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA); \ |
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1976 | jermar | 52 | (c)->fp = -STACK_BIAS |
528 | jermar | 53 | |
426 | jermar | 54 | |
418 | jermar | 55 | /* |
2025 | jermar | 56 | * Save only registers that must be preserved across |
657 | jermar | 57 | * function calls. |
418 | jermar | 58 | */ |
59 | struct context { |
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1780 | jermar | 60 | uintptr_t sp; /* %o6 */ |
61 | uintptr_t pc; /* %o7 */ |
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62 | uint64_t i0; |
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63 | uint64_t i1; |
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64 | uint64_t i2; |
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65 | uint64_t i3; |
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66 | uint64_t i4; |
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67 | uint64_t i5; |
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68 | uintptr_t fp; /* %i6 */ |
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69 | uintptr_t i7; |
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70 | uint64_t l0; |
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71 | uint64_t l1; |
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72 | uint64_t l2; |
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73 | uint64_t l3; |
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74 | uint64_t l4; |
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75 | uint64_t l5; |
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76 | uint64_t l6; |
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77 | uint64_t l7; |
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418 | jermar | 78 | ipl_t ipl; |
426 | jermar | 79 | }; |
418 | jermar | 80 | |
81 | #endif |
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1702 | cejka | 82 | |
1851 | jermar | 83 | /** @} |
1702 | cejka | 84 | */ |