1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * include/asm/xor.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * High speed xor_block operation for RAID4/5 utilizing the 6*4882a593Smuzhiyun * UltraSparc Visual Instruction Set and Niagara block-init 7*4882a593Smuzhiyun * twin-load instructions. 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) 10*4882a593Smuzhiyun * Copyright (C) 2006 David S. Miller <davem@davemloft.net> 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <asm/spitfire.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun void xor_vis_2(unsigned long, unsigned long *, unsigned long *); 16*4882a593Smuzhiyun void xor_vis_3(unsigned long, unsigned long *, unsigned long *, 17*4882a593Smuzhiyun unsigned long *); 18*4882a593Smuzhiyun void xor_vis_4(unsigned long, unsigned long *, unsigned long *, 19*4882a593Smuzhiyun unsigned long *, unsigned long *); 20*4882a593Smuzhiyun void xor_vis_5(unsigned long, unsigned long *, unsigned long *, 21*4882a593Smuzhiyun unsigned long *, unsigned long *, unsigned long *); 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /* XXX Ugh, write cheetah versions... -DaveM */ 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun static struct xor_block_template xor_block_VIS = { 26*4882a593Smuzhiyun .name = "VIS", 27*4882a593Smuzhiyun .do_2 = xor_vis_2, 28*4882a593Smuzhiyun .do_3 = xor_vis_3, 29*4882a593Smuzhiyun .do_4 = xor_vis_4, 30*4882a593Smuzhiyun .do_5 = xor_vis_5, 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); 34*4882a593Smuzhiyun void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, 35*4882a593Smuzhiyun unsigned long *); 36*4882a593Smuzhiyun void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, 37*4882a593Smuzhiyun unsigned long *, unsigned long *); 38*4882a593Smuzhiyun void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, 39*4882a593Smuzhiyun unsigned long *, unsigned long *, unsigned long *); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun static struct xor_block_template xor_block_niagara = { 42*4882a593Smuzhiyun .name = "Niagara", 43*4882a593Smuzhiyun .do_2 = xor_niagara_2, 44*4882a593Smuzhiyun .do_3 = xor_niagara_3, 45*4882a593Smuzhiyun .do_4 = xor_niagara_4, 46*4882a593Smuzhiyun .do_5 = xor_niagara_5, 47*4882a593Smuzhiyun }; 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #undef XOR_TRY_TEMPLATES 50*4882a593Smuzhiyun #define XOR_TRY_TEMPLATES \ 51*4882a593Smuzhiyun do { \ 52*4882a593Smuzhiyun xor_speed(&xor_block_VIS); \ 53*4882a593Smuzhiyun xor_speed(&xor_block_niagara); \ 54*4882a593Smuzhiyun } while (0) 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun /* For VIS for everything except Niagara. */ 57*4882a593Smuzhiyun #define XOR_SELECT_TEMPLATE(FASTEST) \ 58*4882a593Smuzhiyun ((tlb_type == hypervisor && \ 59*4882a593Smuzhiyun (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \ 60*4882a593Smuzhiyun sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \ 61*4882a593Smuzhiyun sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \ 62*4882a593Smuzhiyun sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \ 63*4882a593Smuzhiyun sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \ 64*4882a593Smuzhiyun &xor_block_niagara : \ 65*4882a593Smuzhiyun &xor_block_VIS) 66