Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1160 | decky | 1 | # |
| 2 | # Copyright (C) 2005 Martin Decky |
||
| 3 | # All rights reserved. |
||
| 4 | # |
||
| 5 | # Redistribution and use in source and binary forms, with or without |
||
| 6 | # modification, are permitted provided that the following conditions |
||
| 7 | # are met: |
||
| 8 | # |
||
| 9 | # - Redistributions of source code must retain the above copyright |
||
| 10 | # notice, this list of conditions and the following disclaimer. |
||
| 11 | # - Redistributions in binary form must reproduce the above copyright |
||
| 12 | # notice, this list of conditions and the following disclaimer in the |
||
| 13 | # documentation and/or other materials provided with the distribution. |
||
| 14 | # - The name of the author may not be used to endorse or promote products |
||
| 15 | # derived from this software without specific prior written permission. |
||
| 16 | # |
||
| 17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | # |
||
| 28 | |||
| 29 | #include <arch/asm/regname.h> |
||
| 30 | #include <arch/context_offset.h> |
||
| 31 | |||
| 32 | .text |
||
| 33 | |||
| 34 | .global context_save_arch |
||
| 35 | .global context_restore_arch |
||
| 36 | |||
| 37 | .macro CONTEXT_STORE r |
||
| 38 | stw sp, OFFSET_SP(\r) |
||
| 39 | stw r2, OFFSET_R2(\r) |
||
| 40 | stw r13, OFFSET_R13(\r) |
||
| 41 | stw r14, OFFSET_R14(\r) |
||
| 42 | stw r15, OFFSET_R15(\r) |
||
| 43 | stw r16, OFFSET_R16(\r) |
||
| 44 | stw r17, OFFSET_R17(\r) |
||
| 45 | stw r18, OFFSET_R18(\r) |
||
| 46 | stw r19, OFFSET_R19(\r) |
||
| 47 | stw r20, OFFSET_R20(\r) |
||
| 48 | stw r21, OFFSET_R21(\r) |
||
| 49 | stw r22, OFFSET_R22(\r) |
||
| 50 | stw r23, OFFSET_R23(\r) |
||
| 51 | stw r24, OFFSET_R24(\r) |
||
| 52 | stw r25, OFFSET_R25(\r) |
||
| 53 | stw r26, OFFSET_R26(\r) |
||
| 54 | stw r27, OFFSET_R27(\r) |
||
| 55 | stw r28, OFFSET_R28(\r) |
||
| 56 | stw r29, OFFSET_R29(\r) |
||
| 57 | stw r30, OFFSET_R30(\r) |
||
| 58 | stw r31, OFFSET_R31(\r) |
||
| 59 | .endm |
||
| 60 | |||
| 61 | .macro CONTEXT_LOAD r |
||
| 62 | lwz sp, OFFSET_SP(\r) |
||
| 63 | lwz r2, OFFSET_R2(\r) |
||
| 64 | lwz r13, OFFSET_R13(\r) |
||
| 65 | lwz r14, OFFSET_R14(\r) |
||
| 66 | lwz r15, OFFSET_R15(\r) |
||
| 67 | lwz r16, OFFSET_R16(\r) |
||
| 68 | lwz r17, OFFSET_R17(\r) |
||
| 69 | lwz r18, OFFSET_R18(\r) |
||
| 70 | lwz r19, OFFSET_R19(\r) |
||
| 71 | lwz r20, OFFSET_R20(\r) |
||
| 72 | lwz r21, OFFSET_R21(\r) |
||
| 73 | lwz r22, OFFSET_R22(\r) |
||
| 74 | lwz r23, OFFSET_R23(\r) |
||
| 75 | lwz r24, OFFSET_R24(\r) |
||
| 76 | lwz r25, OFFSET_R25(\r) |
||
| 77 | lwz r26, OFFSET_R26(\r) |
||
| 78 | lwz r27, OFFSET_R27(\r) |
||
| 79 | lwz r28, OFFSET_R28(\r) |
||
| 80 | lwz r29, OFFSET_R29(\r) |
||
| 81 | lwz r30, OFFSET_R30(\r) |
||
| 82 | lwz r31, OFFSET_R31(\r) |
||
| 83 | .endm |
||
| 84 | |||
| 85 | context_save_arch: |
||
| 86 | CONTEXT_STORE r3 |
||
| 87 | |||
| 88 | mflr r4 |
||
| 89 | stw r4, OFFSET_PC(r3) |
||
| 90 | |||
| 91 | mfcr r4 |
||
| 92 | stw r4, OFFSET_CR(r3) |
||
| 93 | |||
| 94 | # context_save returns 1 |
||
| 95 | li r3, 1 |
||
| 96 | blr |
||
| 97 | |||
| 98 | context_restore_arch: |
||
| 99 | CONTEXT_LOAD r3 |
||
| 100 | |||
| 101 | lwz r4, OFFSET_CR(r3) |
||
| 102 | mtcr r4 |
||
| 103 | |||
| 104 | lwz r4, OFFSET_PC(r3) |
||
| 105 | mtlr r4 |
||
| 106 | |||
| 107 | # context_restore returns 0 |
||
| 108 | li r3, 0 |
||
| 109 | blr |