projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f5e706ad | 1 | /* |
| a439fe51 | 2 | * include/asm/xor.h |
| f5e706ad SR |
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 | ||
| f05a6865 SR |
23 | void xor_vis_2(unsigned long, unsigned long *, unsigned long *); |
| 24 | void xor_vis_3(unsigned long, unsigned long *, unsigned long *, | |
| 25 | unsigned long *); | |
| 26 | void xor_vis_4(unsigned long, unsigned long *, unsigned long *, | |
| 27 | unsigned long *, unsigned long *); | |
| 28 | void xor_vis_5(unsigned long, unsigned long *, unsigned long *, | |
| 29 | unsigned long *, unsigned long *, unsigned long *); | |
| f5e706ad SR |
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 | ||
| f05a6865 SR |
41 | void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); |
| 42 | void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, | |
| 43 | unsigned long *); | |
| 44 | void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, | |
| 45 | unsigned long *, unsigned long *); | |
| 46 | void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, | |
| 47 | unsigned long *, unsigned long *, unsigned long *); | |
| f5e706ad SR |
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 || \ | |
| 4ba991d3 | 68 | sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \ |
| 08cefa9f DM |
69 | sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \ |
| 70 | sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \ | |
| 71 | sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \ | |
| f5e706ad SR |
72 | &xor_block_niagara : \ |
| 73 | &xor_block_VIS) |