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f5e706ad SR |
1 | /* |
2 | * include/asm-sparc64/xor.h | |
3 | * | |
4 | * High speed xor_block operation for RAID4/5 utilizing the | |
5 | * UltraSparc Visual Instruction Set and Niagara block-init | |
6 | * twin-load instructions. | |
7 | * | |
8 | * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) | |
9 | * Copyright (C) 2006 David S. Miller <davem@davemloft.net> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * (for example /usr/src/linux/COPYING); if not, write to the Free | |
18 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include <asm/spitfire.h> | |
22 | ||
23 | extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); | |
24 | extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, | |
25 | unsigned long *); | |
26 | extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *, | |
27 | unsigned long *, unsigned long *); | |
28 | extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *, | |
29 | unsigned long *, unsigned long *, unsigned long *); | |
30 | ||
31 | /* XXX Ugh, write cheetah versions... -DaveM */ | |
32 | ||
33 | static struct xor_block_template xor_block_VIS = { | |
34 | .name = "VIS", | |
35 | .do_2 = xor_vis_2, | |
36 | .do_3 = xor_vis_3, | |
37 | .do_4 = xor_vis_4, | |
38 | .do_5 = xor_vis_5, | |
39 | }; | |
40 | ||
41 | extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); | |
42 | extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, | |
43 | unsigned long *); | |
44 | extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, | |
45 | unsigned long *, unsigned long *); | |
46 | extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, | |
47 | unsigned long *, unsigned long *, unsigned long *); | |
48 | ||
49 | static struct xor_block_template xor_block_niagara = { | |
50 | .name = "Niagara", | |
51 | .do_2 = xor_niagara_2, | |
52 | .do_3 = xor_niagara_3, | |
53 | .do_4 = xor_niagara_4, | |
54 | .do_5 = xor_niagara_5, | |
55 | }; | |
56 | ||
57 | #undef XOR_TRY_TEMPLATES | |
58 | #define XOR_TRY_TEMPLATES \ | |
59 | do { \ | |
60 | xor_speed(&xor_block_VIS); \ | |
61 | xor_speed(&xor_block_niagara); \ | |
62 | } while (0) | |
63 | ||
64 | /* For VIS for everything except Niagara. */ | |
65 | #define XOR_SELECT_TEMPLATE(FASTEST) \ | |
66 | ((tlb_type == hypervisor && \ | |
67 | (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \ | |
68 | sun4v_chip_type == SUN4V_CHIP_NIAGARA2)) ? \ | |
69 | &xor_block_niagara : \ | |
70 | &xor_block_VIS) |