| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Hibernation support specific for mips - temporary page tables |
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| 4 | * |
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| 5 | * Copyright (C) 2009 Lemote Inc. |
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| 6 | * Author: Hu Hongbing <huhb@lemote.com> |
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| 7 | * Wu Zhangjin <wuzhangjin@gmail.com> |
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| 8 | */ |
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| 9 | #include <asm/asm-offsets.h> |
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| 10 | #include <asm/regdef.h> |
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| 11 | #include <asm/asm.h> |
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| 12 | |
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| 13 | .text |
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| 14 | LEAF(swsusp_arch_suspend) |
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| 15 | PTR_LA t0, saved_regs |
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| 16 | PTR_S ra, PT_R31(t0) |
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| 17 | PTR_S sp, PT_R29(t0) |
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| 18 | PTR_S fp, PT_R30(t0) |
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| 19 | PTR_S gp, PT_R28(t0) |
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| 20 | PTR_S s0, PT_R16(t0) |
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| 21 | PTR_S s1, PT_R17(t0) |
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| 22 | PTR_S s2, PT_R18(t0) |
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| 23 | PTR_S s3, PT_R19(t0) |
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| 24 | PTR_S s4, PT_R20(t0) |
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| 25 | PTR_S s5, PT_R21(t0) |
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| 26 | PTR_S s6, PT_R22(t0) |
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| 27 | PTR_S s7, PT_R23(t0) |
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| 28 | j swsusp_save |
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| 29 | END(swsusp_arch_suspend) |
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| 30 | |
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| 31 | LEAF(restore_image) |
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| 32 | PTR_L t0, restore_pblist |
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| 33 | 0: |
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| 34 | PTR_L t1, PBE_ADDRESS(t0) /* source */ |
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| 35 | PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */ |
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| 36 | PTR_ADDU t3, t1, _PAGE_SIZE |
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| 37 | 1: |
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| 38 | REG_L t8, (t1) |
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| 39 | REG_S t8, (t2) |
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| 40 | PTR_ADDIU t1, t1, SZREG |
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| 41 | PTR_ADDIU t2, t2, SZREG |
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| 42 | bne t1, t3, 1b |
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| 43 | PTR_L t0, PBE_NEXT(t0) |
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| 44 | bnez t0, 0b |
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| 45 | PTR_LA t0, saved_regs |
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| 46 | PTR_L ra, PT_R31(t0) |
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| 47 | PTR_L sp, PT_R29(t0) |
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| 48 | PTR_L fp, PT_R30(t0) |
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| 49 | PTR_L gp, PT_R28(t0) |
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| 50 | PTR_L s0, PT_R16(t0) |
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| 51 | PTR_L s1, PT_R17(t0) |
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| 52 | PTR_L s2, PT_R18(t0) |
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| 53 | PTR_L s3, PT_R19(t0) |
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| 54 | PTR_L s4, PT_R20(t0) |
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| 55 | PTR_L s5, PT_R21(t0) |
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| 56 | PTR_L s6, PT_R22(t0) |
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| 57 | PTR_L s7, PT_R23(t0) |
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| 58 | PTR_LI v0, 0x0 |
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| 59 | jr ra |
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| 60 | END(restore_image) |
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| 61 | |
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