| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * include/asm/xor.h |
| * |
| * High speed xor_block operation for RAID4/5 utilizing the |
| * UltraSparc Visual Instruction Set and Niagara block-init |
| * twin-load instructions. |
| * |
| * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) |
| * Copyright (C) 2006 David S. Miller <davem@davemloft.net> |
| */ |
| |
| #include <asm/spitfire.h> |
| |
| void xor_vis_2(unsigned long, unsigned long *, unsigned long *); |
| void xor_vis_3(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *); |
| void xor_vis_4(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *, unsigned long *); |
| void xor_vis_5(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *, unsigned long *, unsigned long *); |
| |
| /* XXX Ugh, write cheetah versions... -DaveM */ |
| |
| static struct xor_block_template xor_block_VIS = { |
| .name = "VIS", |
| .do_2 = xor_vis_2, |
| .do_3 = xor_vis_3, |
| .do_4 = xor_vis_4, |
| .do_5 = xor_vis_5, |
| }; |
| |
| void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); |
| void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *); |
| void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *, unsigned long *); |
| void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, |
| unsigned long *, unsigned long *, unsigned long *); |
| |
| static struct xor_block_template xor_block_niagara = { |
| .name = "Niagara", |
| .do_2 = xor_niagara_2, |
| .do_3 = xor_niagara_3, |
| .do_4 = xor_niagara_4, |
| .do_5 = xor_niagara_5, |
| }; |
| |
| #undef XOR_TRY_TEMPLATES |
| #define XOR_TRY_TEMPLATES \ |
| do { \ |
| xor_speed(&xor_block_VIS); \ |
| xor_speed(&xor_block_niagara); \ |
| } while (0) |
| |
| /* For VIS for everything except Niagara. */ |
| #define XOR_SELECT_TEMPLATE(FASTEST) \ |
| ((tlb_type == hypervisor && \ |
| (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \ |
| sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \ |
| sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \ |
| sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \ |
| sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \ |
| &xor_block_niagara : \ |
| &xor_block_VIS) |
