| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1 | /* |
| Mark Nelson | 57dda6e | 2008-08-22 14:39:00 +1000 | [diff] [blame] | 2 | * Copyright (C) 2008 Mark Nelson, IBM Corp. |
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | */ |
| 9 | #include <asm/processor.h> |
| 10 | #include <asm/ppc_asm.h> |
| Mark Nelson | 57dda6e | 2008-08-22 14:39:00 +1000 | [diff] [blame] | 11 | #include <asm/asm-offsets.h> |
| 12 | |
| 13 | .section ".toc","aw" |
| 14 | PPC64_CACHES: |
| 15 | .tc ppc64_caches[TC],ppc64_caches |
| 16 | .section ".text" |
| 17 | |
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 18 | |
| Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 19 | _GLOBAL(copy_4K_page) |
| Mark Nelson | 57dda6e | 2008-08-22 14:39:00 +1000 | [diff] [blame] | 20 | li r5,4096 /* 4K page size */ |
| 21 | BEGIN_FTR_SECTION |
| 22 | ld r10,PPC64_CACHES@toc(r2) |
| 23 | lwz r11,DCACHEL1LOGLINESIZE(r10) /* log2 of cache line size */ |
| 24 | lwz r12,DCACHEL1LINESIZE(r10) /* get cache line size */ |
| 25 | li r9,0 |
| 26 | srd r8,r5,r11 |
| 27 | |
| 28 | mtctr r8 |
| 29 | setup: |
| 30 | dcbt r9,r4 |
| 31 | dcbz r9,r3 |
| 32 | add r9,r9,r12 |
| 33 | bdnz setup |
| 34 | END_FTR_SECTION_IFSET(CPU_FTR_CP_USE_DCBTZ) |
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 35 | addi r3,r3,-8 |
| Mark Nelson | 57dda6e | 2008-08-22 14:39:00 +1000 | [diff] [blame] | 36 | srdi r8,r5,7 /* page is copied in 128 byte strides */ |
| 37 | addi r8,r8,-1 /* one stride copied outside loop */ |
| 38 | |
| 39 | mtctr r8 |
| 40 | |
| 41 | ld r5,0(r4) |
| 42 | ld r6,8(r4) |
| 43 | ld r7,16(r4) |
| 44 | ldu r8,24(r4) |
| 45 | 1: std r5,8(r3) |
| 46 | ld r9,8(r4) |
| 47 | std r6,16(r3) |
| 48 | ld r10,16(r4) |
| 49 | std r7,24(r3) |
| 50 | ld r11,24(r4) |
| 51 | std r8,32(r3) |
| 52 | ld r12,32(r4) |
| 53 | std r9,40(r3) |
| 54 | ld r5,40(r4) |
| 55 | std r10,48(r3) |
| 56 | ld r6,48(r4) |
| 57 | std r11,56(r3) |
| 58 | ld r7,56(r4) |
| 59 | std r12,64(r3) |
| 60 | ld r8,64(r4) |
| 61 | std r5,72(r3) |
| 62 | ld r9,72(r4) |
| 63 | std r6,80(r3) |
| 64 | ld r10,80(r4) |
| 65 | std r7,88(r3) |
| 66 | ld r11,88(r4) |
| 67 | std r8,96(r3) |
| 68 | ld r12,96(r4) |
| 69 | std r9,104(r3) |
| 70 | ld r5,104(r4) |
| 71 | std r10,112(r3) |
| 72 | ld r6,112(r4) |
| 73 | std r11,120(r3) |
| 74 | ld r7,120(r4) |
| 75 | stdu r12,128(r3) |
| 76 | ldu r8,128(r4) |
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 77 | bdnz 1b |
| Mark Nelson | 57dda6e | 2008-08-22 14:39:00 +1000 | [diff] [blame] | 78 | |
| 79 | std r5,8(r3) |
| 80 | ld r9,8(r4) |
| 81 | std r6,16(r3) |
| 82 | ld r10,16(r4) |
| 83 | std r7,24(r3) |
| 84 | ld r11,24(r4) |
| 85 | std r8,32(r3) |
| 86 | ld r12,32(r4) |
| 87 | std r9,40(r3) |
| 88 | ld r5,40(r4) |
| 89 | std r10,48(r3) |
| 90 | ld r6,48(r4) |
| 91 | std r11,56(r3) |
| 92 | ld r7,56(r4) |
| 93 | std r12,64(r3) |
| 94 | ld r8,64(r4) |
| 95 | std r5,72(r3) |
| 96 | ld r9,72(r4) |
| 97 | std r6,80(r3) |
| 98 | ld r10,80(r4) |
| 99 | std r7,88(r3) |
| 100 | ld r11,88(r4) |
| 101 | std r8,96(r3) |
| 102 | ld r12,96(r4) |
| 103 | std r9,104(r3) |
| 104 | std r10,112(r3) |
| 105 | std r11,120(r3) |
| 106 | std r12,128(r3) |
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 107 | blr |