67 lines
1.5 KiB
ArmAsm
67 lines
1.5 KiB
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Hibernation support specific for LoongArch
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*
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* Author: Huacai Chen <chenhuacai@loongson.cn>
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#include <linux/linkage.h>
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#include <asm/asm.h>
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#include <asm/asm-offsets.h>
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#include <asm/regdef.h>
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.text
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SYM_FUNC_START(swsusp_asm_suspend)
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la.pcrel t0, saved_regs
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PTR_S ra, t0, PT_R1
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PTR_S tp, t0, PT_R2
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PTR_S sp, t0, PT_R3
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PTR_S u0, t0, PT_R21
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PTR_S fp, t0, PT_R22
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PTR_S s0, t0, PT_R23
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PTR_S s1, t0, PT_R24
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PTR_S s2, t0, PT_R25
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PTR_S s3, t0, PT_R26
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PTR_S s4, t0, PT_R27
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PTR_S s5, t0, PT_R28
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PTR_S s6, t0, PT_R29
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PTR_S s7, t0, PT_R30
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PTR_S s8, t0, PT_R31
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b swsusp_save
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SYM_FUNC_END(swsusp_asm_suspend)
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SYM_FUNC_START(swsusp_asm_resume)
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la.pcrel t0, restore_pblist
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PTR_L t0, t0, 0
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0:
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PTR_L t1, t0, PBE_ADDRESS /* source */
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PTR_L t2, t0, PBE_ORIG_ADDRESS /* destination */
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PTR_LI t3, _PAGE_SIZE
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PTR_ADD t3, t3, t1
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1:
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REG_L t8, t1, 0
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REG_S t8, t2, 0
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PTR_ADDI t1, t1, SZREG
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PTR_ADDI t2, t2, SZREG
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bne t1, t3, 1b
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PTR_L t0, t0, PBE_NEXT
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bnez t0, 0b
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la.pcrel t0, saved_regs
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PTR_L ra, t0, PT_R1
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PTR_L tp, t0, PT_R2
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PTR_L sp, t0, PT_R3
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PTR_L u0, t0, PT_R21
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PTR_L fp, t0, PT_R22
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PTR_L s0, t0, PT_R23
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PTR_L s1, t0, PT_R24
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PTR_L s2, t0, PT_R25
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PTR_L s3, t0, PT_R26
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PTR_L s4, t0, PT_R27
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PTR_L s5, t0, PT_R28
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PTR_L s6, t0, PT_R29
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PTR_L s7, t0, PT_R30
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PTR_L s8, t0, PT_R31
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PTR_LI a0, 0x0
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jirl zero, ra, 0
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SYM_FUNC_END(swsusp_asm_resume)
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