| Wu Zhangjin | 363c55c | 2009-06-04 20:27:10 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Hibernation support specific for mips - temporary page tables |
| 3 | * |
| 4 | * Licensed under the GPLv2 |
| 5 | * |
| 6 | * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology |
| 7 | * Author: Hu Hongbing <huhb@lemote.com> |
| 8 | * Wu Zhangjin <wuzj@lemote.com> |
| 9 | */ |
| 10 | #include <asm/asm-offsets.h> |
| 11 | #include <asm/regdef.h> |
| 12 | #include <asm/asm.h> |
| 13 | |
| 14 | .text |
| 15 | LEAF(swsusp_arch_suspend) |
| 16 | PTR_LA t0, saved_regs |
| 17 | PTR_S ra, PT_R31(t0) |
| 18 | PTR_S sp, PT_R29(t0) |
| 19 | PTR_S fp, PT_R30(t0) |
| 20 | PTR_S gp, PT_R28(t0) |
| 21 | PTR_S s0, PT_R16(t0) |
| 22 | PTR_S s1, PT_R17(t0) |
| 23 | PTR_S s2, PT_R18(t0) |
| 24 | PTR_S s3, PT_R19(t0) |
| 25 | PTR_S s4, PT_R20(t0) |
| 26 | PTR_S s5, PT_R21(t0) |
| 27 | PTR_S s6, PT_R22(t0) |
| 28 | PTR_S s7, PT_R23(t0) |
| 29 | j swsusp_save |
| 30 | END(swsusp_arch_suspend) |
| 31 | |
| 32 | LEAF(swsusp_arch_resume) |
| 33 | PTR_L t0, restore_pblist |
| 34 | 0: |
| 35 | PTR_L t1, PBE_ADDRESS(t0) /* source */ |
| 36 | PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */ |
| 37 | PTR_ADDIU t3, t1, _PAGE_SIZE |
| 38 | 1: |
| 39 | REG_L t8, (t1) |
| 40 | REG_S t8, (t2) |
| 41 | PTR_ADDIU t1, t1, SZREG |
| 42 | PTR_ADDIU t2, t2, SZREG |
| 43 | bne t1, t3, 1b |
| 44 | PTR_L t0, PBE_NEXT(t0) |
| 45 | bnez t0, 0b |
| 46 | /* flush caches to make sure context is in memory */ |
| 47 | PTR_L t0, __flush_cache_all |
| 48 | jalr t0 |
| 49 | /* flush tlb entries */ |
| 50 | #ifdef CONFIG_SMP |
| 51 | jal flush_tlb_all |
| 52 | #else |
| 53 | jal local_flush_tlb_all |
| 54 | #endif |
| 55 | PTR_LA t0, saved_regs |
| 56 | PTR_L ra, PT_R31(t0) |
| 57 | PTR_L sp, PT_R29(t0) |
| 58 | PTR_L fp, PT_R30(t0) |
| 59 | PTR_L gp, PT_R28(t0) |
| 60 | PTR_L s0, PT_R16(t0) |
| 61 | PTR_L s1, PT_R17(t0) |
| 62 | PTR_L s2, PT_R18(t0) |
| 63 | PTR_L s3, PT_R19(t0) |
| 64 | PTR_L s4, PT_R20(t0) |
| 65 | PTR_L s5, PT_R21(t0) |
| 66 | PTR_L s6, PT_R22(t0) |
| 67 | PTR_L s7, PT_R23(t0) |
| 68 | PTR_LI v0, 0x0 |
| 69 | jr ra |
| 70 | END(swsusp_arch_resume) |