| 1 | /*
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| 2 | * SPDX-FileCopyrightText: 2006 Martin Decky
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| 3 | *
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| 4 | * SPDX-License-Identifier: BSD-3-Clause
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| 5 | */
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| 6 |
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| 7 | .text
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| 8 |
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| 9 | #include <abi/asmtool.h>
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| 10 | #include <libarch/regname.h>
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| 11 | #include <libarch/fibril_context.h>
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| 12 |
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| 13 | FUNCTION_BEGIN(__context_save)
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| 14 | stw sp, __CONTEXT_OFFSET_SP(r3)
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| 15 | stw r2, __CONTEXT_OFFSET_TLS(r3)
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| 16 | stw r13, __CONTEXT_OFFSET_R13(r3)
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| 17 | stw r14, __CONTEXT_OFFSET_R14(r3)
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| 18 | stw r15, __CONTEXT_OFFSET_R15(r3)
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| 19 | stw r16, __CONTEXT_OFFSET_R16(r3)
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| 20 | stw r17, __CONTEXT_OFFSET_R17(r3)
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| 21 | stw r18, __CONTEXT_OFFSET_R18(r3)
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| 22 | stw r19, __CONTEXT_OFFSET_R19(r3)
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| 23 | stw r20, __CONTEXT_OFFSET_R20(r3)
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| 24 | stw r21, __CONTEXT_OFFSET_R21(r3)
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| 25 | stw r22, __CONTEXT_OFFSET_R22(r3)
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| 26 | stw r23, __CONTEXT_OFFSET_R23(r3)
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| 27 | stw r24, __CONTEXT_OFFSET_R24(r3)
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| 28 | stw r25, __CONTEXT_OFFSET_R25(r3)
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| 29 | stw r26, __CONTEXT_OFFSET_R26(r3)
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| 30 | stw r27, __CONTEXT_OFFSET_R27(r3)
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| 31 | stw r28, __CONTEXT_OFFSET_R28(r3)
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| 32 | stw r29, __CONTEXT_OFFSET_R29(r3)
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| 33 | stw r30, __CONTEXT_OFFSET_R30(r3)
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| 34 | stw r31, __CONTEXT_OFFSET_R31(r3)
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| 35 |
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| 36 | mflr r4
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| 37 | stw r4, __CONTEXT_OFFSET_PC(r3)
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| 38 |
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| 39 | mfcr r4
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| 40 | stw r4, __CONTEXT_OFFSET_CR(r3)
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| 41 |
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| 42 | # __context_save returns 0
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| 43 | li r3, 0
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| 44 | blr
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| 45 | FUNCTION_END(__context_save)
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| 46 |
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| 47 | FUNCTION_BEGIN(__context_restore)
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| 48 | lwz sp, __CONTEXT_OFFSET_SP(r3)
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| 49 | lwz r2, __CONTEXT_OFFSET_TLS(r3)
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| 50 | lwz r13, __CONTEXT_OFFSET_R13(r3)
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| 51 | lwz r14, __CONTEXT_OFFSET_R14(r3)
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| 52 | lwz r15, __CONTEXT_OFFSET_R15(r3)
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| 53 | lwz r16, __CONTEXT_OFFSET_R16(r3)
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| 54 | lwz r17, __CONTEXT_OFFSET_R17(r3)
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| 55 | lwz r18, __CONTEXT_OFFSET_R18(r3)
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| 56 | lwz r19, __CONTEXT_OFFSET_R19(r3)
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| 57 | lwz r20, __CONTEXT_OFFSET_R20(r3)
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| 58 | lwz r21, __CONTEXT_OFFSET_R21(r3)
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| 59 | lwz r22, __CONTEXT_OFFSET_R22(r3)
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| 60 | lwz r23, __CONTEXT_OFFSET_R23(r3)
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| 61 | lwz r24, __CONTEXT_OFFSET_R24(r3)
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| 62 | lwz r25, __CONTEXT_OFFSET_R25(r3)
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| 63 | lwz r26, __CONTEXT_OFFSET_R26(r3)
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| 64 | lwz r27, __CONTEXT_OFFSET_R27(r3)
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| 65 | lwz r28, __CONTEXT_OFFSET_R28(r3)
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| 66 | lwz r29, __CONTEXT_OFFSET_R29(r3)
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| 67 | lwz r30, __CONTEXT_OFFSET_R30(r3)
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| 68 | lwz r31, __CONTEXT_OFFSET_R31(r3)
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| 69 |
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| 70 | lwz r5, __CONTEXT_OFFSET_CR(r3)
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| 71 | mtcr r5
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| 72 |
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| 73 | lwz r5, __CONTEXT_OFFSET_PC(r3)
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| 74 | mtlr r5
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| 75 |
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| 76 | # __context_restore returns second argument
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| 77 | mr r3, r4
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| 78 | blr
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| 79 | FUNCTION_END(__context_restore)
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