| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame^] | 1 | /* |
| 2 | * arch/ppc64/lib/copypage.S |
| 3 | * |
| 4 | * Copyright (C) 2002 Paul Mackerras, IBM Corp. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | #include <asm/processor.h> |
| 12 | #include <asm/ppc_asm.h> |
| 13 | |
| 14 | _GLOBAL(copy_page) |
| 15 | std r31,-8(1) |
| 16 | std r30,-16(1) |
| 17 | std r29,-24(1) |
| 18 | std r28,-32(1) |
| 19 | std r27,-40(1) |
| 20 | std r26,-48(1) |
| 21 | std r25,-56(1) |
| 22 | std r24,-64(1) |
| 23 | std r23,-72(1) |
| 24 | std r22,-80(1) |
| 25 | std r21,-88(1) |
| 26 | std r20,-96(1) |
| 27 | li r5,4096/32 - 1 |
| 28 | addi r3,r3,-8 |
| 29 | li r12,5 |
| 30 | 0: addi r5,r5,-24 |
| 31 | mtctr r12 |
| 32 | ld r22,640(4) |
| 33 | ld r21,512(4) |
| 34 | ld r20,384(4) |
| 35 | ld r11,256(4) |
| 36 | ld r9,128(4) |
| 37 | ld r7,0(4) |
| 38 | ld r25,648(4) |
| 39 | ld r24,520(4) |
| 40 | ld r23,392(4) |
| 41 | ld r10,264(4) |
| 42 | ld r8,136(4) |
| 43 | ldu r6,8(4) |
| 44 | cmpwi r5,24 |
| 45 | 1: std r22,648(3) |
| 46 | std r21,520(3) |
| 47 | std r20,392(3) |
| 48 | std r11,264(3) |
| 49 | std r9,136(3) |
| 50 | std r7,8(3) |
| 51 | ld r28,648(4) |
| 52 | ld r27,520(4) |
| 53 | ld r26,392(4) |
| 54 | ld r31,264(4) |
| 55 | ld r30,136(4) |
| 56 | ld r29,8(4) |
| 57 | std r25,656(3) |
| 58 | std r24,528(3) |
| 59 | std r23,400(3) |
| 60 | std r10,272(3) |
| 61 | std r8,144(3) |
| 62 | std r6,16(3) |
| 63 | ld r22,656(4) |
| 64 | ld r21,528(4) |
| 65 | ld r20,400(4) |
| 66 | ld r11,272(4) |
| 67 | ld r9,144(4) |
| 68 | ld r7,16(4) |
| 69 | std r28,664(3) |
| 70 | std r27,536(3) |
| 71 | std r26,408(3) |
| 72 | std r31,280(3) |
| 73 | std r30,152(3) |
| 74 | stdu r29,24(3) |
| 75 | ld r25,664(4) |
| 76 | ld r24,536(4) |
| 77 | ld r23,408(4) |
| 78 | ld r10,280(4) |
| 79 | ld r8,152(4) |
| 80 | ldu r6,24(4) |
| 81 | bdnz 1b |
| 82 | std r22,648(3) |
| 83 | std r21,520(3) |
| 84 | std r20,392(3) |
| 85 | std r11,264(3) |
| 86 | std r9,136(3) |
| 87 | std r7,8(3) |
| 88 | addi r4,r4,640 |
| 89 | addi r3,r3,648 |
| 90 | bge 0b |
| 91 | mtctr r5 |
| 92 | ld r7,0(4) |
| 93 | ld r8,8(4) |
| 94 | ldu r9,16(4) |
| 95 | 3: ld r10,8(4) |
| 96 | std r7,8(3) |
| 97 | ld r7,16(4) |
| 98 | std r8,16(3) |
| 99 | ld r8,24(4) |
| 100 | std r9,24(3) |
| 101 | ldu r9,32(4) |
| 102 | stdu r10,32(3) |
| 103 | bdnz 3b |
| 104 | 4: ld r10,8(4) |
| 105 | std r7,8(3) |
| 106 | std r8,16(3) |
| 107 | std r9,24(3) |
| 108 | std r10,32(3) |
| 109 | 9: ld r20,-96(1) |
| 110 | ld r21,-88(1) |
| 111 | ld r22,-80(1) |
| 112 | ld r23,-72(1) |
| 113 | ld r24,-64(1) |
| 114 | ld r25,-56(1) |
| 115 | ld r26,-48(1) |
| 116 | ld r27,-40(1) |
| 117 | ld r28,-32(1) |
| 118 | ld r29,-24(1) |
| 119 | ld r30,-16(1) |
| 120 | ld r31,-8(1) |
| 121 | blr |