projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 14cf11af | 2 | /* |
| 57dda6ef | 3 | * Copyright (C) 2008 Mark Nelson, IBM Corp. |
| 14cf11af | 4 | */ |
| d988f0e3 | 5 | #include <asm/page.h> |
| 14cf11af PM |
6 | #include <asm/processor.h> |
| 7 | #include <asm/ppc_asm.h> | |
| 57dda6ef | 8 | #include <asm/asm-offsets.h> |
| 9445aa1a | 9 | #include <asm/export.h> |
| 2c86cd18 | 10 | #include <asm/feature-fixups.h> |
| 57dda6ef MN |
11 | |
| 12 | .section ".toc","aw" | |
| 13 | PPC64_CACHES: | |
| 14 | .tc ppc64_caches[TC],ppc64_caches | |
| 15 | .section ".text" | |
| 16 | ||
| 2ac7b016 | 17 | _GLOBAL_TOC(copy_page) |
| fde69282 | 18 | BEGIN_FTR_SECTION |
| d988f0e3 | 19 | lis r5,PAGE_SIZE@h |
| fde69282 | 20 | FTR_SECTION_ELSE |
| 15a3204d | 21 | #ifdef CONFIG_PPC_BOOK3S_64 |
| b1576fec | 22 | b copypage_power7 |
| 15a3204d | 23 | #endif |
| fde69282 | 24 | ALT_FTR_SECTION_END_IFCLR(CPU_FTR_VMX_COPY) |
| d988f0e3 | 25 | ori r5,r5,PAGE_SIZE@l |
| 57dda6ef MN |
26 | BEGIN_FTR_SECTION |
| 27 | ld r10,PPC64_CACHES@toc(r2) | |
| bd067f83 BH |
28 | lwz r11,DCACHEL1LOGBLOCKSIZE(r10) /* log2 of cache block size */ |
| 29 | lwz r12,DCACHEL1BLOCKSIZE(r10) /* get cache block size */ | |
| 57dda6ef MN |
30 | li r9,0 |
| 31 | srd r8,r5,r11 | |
| 32 | ||
| 33 | mtctr r8 | |
| 3cd980db | 34 | .Lsetup: |
| 57dda6ef MN |
35 | dcbt r9,r4 |
| 36 | dcbz r9,r3 | |
| 37 | add r9,r9,r12 | |
| 3cd980db | 38 | bdnz .Lsetup |
| 57dda6ef | 39 | END_FTR_SECTION_IFSET(CPU_FTR_CP_USE_DCBTZ) |
| 14cf11af | 40 | addi r3,r3,-8 |
| 57dda6ef MN |
41 | srdi r8,r5,7 /* page is copied in 128 byte strides */ |
| 42 | addi r8,r8,-1 /* one stride copied outside loop */ | |
| 43 | ||
| 44 | mtctr r8 | |
| 45 | ||
| 46 | ld r5,0(r4) | |
| 47 | ld r6,8(r4) | |
| 48 | ld r7,16(r4) | |
| 49 | ldu r8,24(r4) | |
| 50 | 1: std r5,8(r3) | |
| 57dda6ef | 51 | std r6,16(r3) |
| 63e6c5b8 | 52 | ld r9,8(r4) |
| 57dda6ef MN |
53 | ld r10,16(r4) |
| 54 | std r7,24(r3) | |
| 57dda6ef | 55 | std r8,32(r3) |
| 63e6c5b8 | 56 | ld r11,24(r4) |
| 57dda6ef MN |
57 | ld r12,32(r4) |
| 58 | std r9,40(r3) | |
| 57dda6ef | 59 | std r10,48(r3) |
| 63e6c5b8 | 60 | ld r5,40(r4) |
| 57dda6ef MN |
61 | ld r6,48(r4) |
| 62 | std r11,56(r3) | |
| 57dda6ef | 63 | std r12,64(r3) |
| 63e6c5b8 | 64 | ld r7,56(r4) |
| 57dda6ef MN |
65 | ld r8,64(r4) |
| 66 | std r5,72(r3) | |
| 57dda6ef | 67 | std r6,80(r3) |
| 63e6c5b8 | 68 | ld r9,72(r4) |
| 57dda6ef MN |
69 | ld r10,80(r4) |
| 70 | std r7,88(r3) | |
| 57dda6ef | 71 | std r8,96(r3) |
| 63e6c5b8 | 72 | ld r11,88(r4) |
| 57dda6ef MN |
73 | ld r12,96(r4) |
| 74 | std r9,104(r3) | |
| 57dda6ef | 75 | std r10,112(r3) |
| 63e6c5b8 | 76 | ld r5,104(r4) |
| 57dda6ef MN |
77 | ld r6,112(r4) |
| 78 | std r11,120(r3) | |
| 57dda6ef | 79 | stdu r12,128(r3) |
| 63e6c5b8 | 80 | ld r7,120(r4) |
| 57dda6ef | 81 | ldu r8,128(r4) |
| 14cf11af | 82 | bdnz 1b |
| 57dda6ef MN |
83 | |
| 84 | std r5,8(r3) | |
| 57dda6ef | 85 | std r6,16(r3) |
| 63e6c5b8 | 86 | ld r9,8(r4) |
| 57dda6ef MN |
87 | ld r10,16(r4) |
| 88 | std r7,24(r3) | |
| 57dda6ef | 89 | std r8,32(r3) |
| 63e6c5b8 | 90 | ld r11,24(r4) |
| 57dda6ef MN |
91 | ld r12,32(r4) |
| 92 | std r9,40(r3) | |
| 57dda6ef | 93 | std r10,48(r3) |
| 63e6c5b8 | 94 | ld r5,40(r4) |
| 57dda6ef MN |
95 | ld r6,48(r4) |
| 96 | std r11,56(r3) | |
| 57dda6ef | 97 | std r12,64(r3) |
| 63e6c5b8 | 98 | ld r7,56(r4) |
| 57dda6ef MN |
99 | ld r8,64(r4) |
| 100 | std r5,72(r3) | |
| 57dda6ef | 101 | std r6,80(r3) |
| 63e6c5b8 | 102 | ld r9,72(r4) |
| 57dda6ef MN |
103 | ld r10,80(r4) |
| 104 | std r7,88(r3) | |
| 57dda6ef | 105 | std r8,96(r3) |
| 63e6c5b8 | 106 | ld r11,88(r4) |
| 57dda6ef MN |
107 | ld r12,96(r4) |
| 108 | std r9,104(r3) | |
| 109 | std r10,112(r3) | |
| 110 | std r11,120(r3) | |
| 111 | std r12,128(r3) | |
| 14cf11af | 112 | blr |
| 9445aa1a | 113 | EXPORT_SYMBOL(copy_page) |