Commit | Line | Data |
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14cf11af | 1 | /* |
57dda6ef | 2 | * Copyright (C) 2008 Mark Nelson, IBM Corp. |
14cf11af PM |
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 | */ | |
d988f0e3 | 9 | #include <asm/page.h> |
14cf11af PM |
10 | #include <asm/processor.h> |
11 | #include <asm/ppc_asm.h> | |
57dda6ef MN |
12 | #include <asm/asm-offsets.h> |
13 | ||
14 | .section ".toc","aw" | |
15 | PPC64_CACHES: | |
16 | .tc ppc64_caches[TC],ppc64_caches | |
17 | .section ".text" | |
18 | ||
d988f0e3 | 19 | _GLOBAL(copy_page) |
fde69282 | 20 | BEGIN_FTR_SECTION |
d988f0e3 | 21 | lis r5,PAGE_SIZE@h |
fde69282 AB |
22 | FTR_SECTION_ELSE |
23 | b .copypage_power7 | |
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) | |
28 | lwz r11,DCACHEL1LOGLINESIZE(r10) /* log2 of cache line size */ | |
29 | lwz r12,DCACHEL1LINESIZE(r10) /* get cache line size */ | |
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 |