From 36344762396ca868d6076c41a84bda25f1ed9d3c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 25 Feb 2006 17:16:29 -0800 Subject: [PATCH] [SPARC64]: Niagara optimized XOR functions for RAID. Signed-off-by: David S. Miller --- arch/sparc64/kernel/sparc64_ksyms.c | 13 ++ arch/sparc64/lib/xor.S | 300 +++++++++++++++++++++++++++- include/asm-sparc64/xor.h | 34 +++- 3 files changed, 342 insertions(+), 5 deletions(-) diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 801fc0ce4844..e87fe7dfc7de 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -108,6 +108,14 @@ extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *, extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *, unsigned long *, unsigned long *, unsigned long *); +extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); +extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, + unsigned long *); +extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *); +extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *, unsigned long *); + /* Per-CPU information table */ EXPORT_PER_CPU_SYMBOL(__cpu_data); @@ -388,4 +396,9 @@ EXPORT_SYMBOL(xor_vis_3); EXPORT_SYMBOL(xor_vis_4); EXPORT_SYMBOL(xor_vis_5); +EXPORT_SYMBOL(xor_niagara_2); +EXPORT_SYMBOL(xor_niagara_3); +EXPORT_SYMBOL(xor_niagara_4); +EXPORT_SYMBOL(xor_niagara_5); + EXPORT_SYMBOL(prom_palette); diff --git a/arch/sparc64/lib/xor.S b/arch/sparc64/lib/xor.S index 4cd5d2be1ae1..a79c8888170d 100644 --- a/arch/sparc64/lib/xor.S +++ b/arch/sparc64/lib/xor.S @@ -2,9 +2,10 @@ * arch/sparc64/lib/xor.S * * High speed xor_block operation for RAID4/5 utilizing the - * UltraSparc Visual Instruction Set. + * UltraSparc Visual Instruction Set and Niagara store-init/twin-load. * * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 2006 David S. Miller */ #include @@ -19,6 +20,8 @@ */ .text .align 32 + + /* VIS versions. */ .globl xor_vis_2 .type xor_vis_2,#function xor_vis_2: @@ -352,3 +355,298 @@ xor_vis_5: ret restore .size xor_vis_5, .-xor_vis_5 + + /* Niagara versions. */ + .globl xor_niagara_2 + .type xor_niagara_2,#function +xor_niagara_2: /* %o0=bytes, %o1=dest, %o2=src */ + save %sp, -192, %sp + prefetch [%i1], #n_writes + prefetch [%i2], #one_read + rd %asi, %g7 + wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi + srlx %i0, 6, %g1 + mov %i1, %i0 + mov %i2, %i1 +1: ldda [%i1 + 0x00] %asi, %i2 /* %i2/%i3 = src + 0x00 */ + ldda [%i1 + 0x10] %asi, %i4 /* %i4/%i5 = src + 0x10 */ + ldda [%i1 + 0x20] %asi, %g2 /* %g2/%g3 = src + 0x20 */ + ldda [%i1 + 0x30] %asi, %l0 /* %l0/%l1 = src + 0x30 */ + prefetch [%i1 + 0x40], #one_read + ldda [%i0 + 0x00] %asi, %o0 /* %o0/%o1 = dest + 0x00 */ + ldda [%i0 + 0x10] %asi, %o2 /* %o2/%o3 = dest + 0x10 */ + ldda [%i0 + 0x20] %asi, %o4 /* %o4/%o5 = dest + 0x20 */ + ldda [%i0 + 0x30] %asi, %l2 /* %l2/%l3 = dest + 0x30 */ + prefetch [%i0 + 0x40], #n_writes + xor %o0, %i2, %o0 + xor %o1, %i3, %o1 + stxa %o0, [%i0 + 0x00] %asi + stxa %o1, [%i0 + 0x08] %asi + xor %o2, %i4, %o2 + xor %o3, %i5, %o3 + stxa %o2, [%i0 + 0x10] %asi + stxa %o3, [%i0 + 0x18] %asi + xor %o4, %g2, %o4 + xor %o5, %g3, %o5 + stxa %o4, [%i0 + 0x20] %asi + stxa %o5, [%i0 + 0x28] %asi + xor %l2, %l0, %l2 + xor %l3, %l1, %l3 + stxa %l2, [%i0 + 0x30] %asi + stxa %l3, [%i0 + 0x38] %asi + add %i0, 0x40, %i0 + subcc %g1, 1, %g1 + bne,pt %xcc, 1b + add %i1, 0x40, %i1 + membar #Sync + wr %g7, 0x0, %asi + ret + restore + .size xor_niagara_2, .-xor_niagara_2 + + .globl xor_niagara_3 + .type xor_niagara_3,#function +xor_niagara_3: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2 */ + save %sp, -192, %sp + prefetch [%i1], #n_writes + prefetch [%i2], #one_read + prefetch [%i3], #one_read + rd %asi, %g7 + wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi + srlx %i0, 6, %g1 + mov %i1, %i0 + mov %i2, %i1 + mov %i3, %l7 +1: ldda [%i1 + 0x00] %asi, %i2 /* %i2/%i3 = src1 + 0x00 */ + ldda [%i1 + 0x10] %asi, %i4 /* %i4/%i5 = src1 + 0x10 */ + ldda [%l7 + 0x00] %asi, %g2 /* %g2/%g3 = src2 + 0x00 */ + ldda [%l7 + 0x10] %asi, %l0 /* %l0/%l1 = src2 + 0x10 */ + ldda [%i0 + 0x00] %asi, %o0 /* %o0/%o1 = dest + 0x00 */ + ldda [%i0 + 0x10] %asi, %o2 /* %o2/%o3 = dest + 0x10 */ + xor %g2, %i2, %g2 + xor %g3, %i3, %g3 + xor %o0, %g2, %o0 + xor %o1, %g3, %o1 + stxa %o0, [%i0 + 0x00] %asi + stxa %o1, [%i0 + 0x08] %asi + ldda [%i1 + 0x20] %asi, %i2 /* %i2/%i3 = src1 + 0x20 */ + ldda [%l7 + 0x20] %asi, %g2 /* %g2/%g3 = src2 + 0x20 */ + ldda [%i0 + 0x20] %asi, %o0 /* %o0/%o1 = dest + 0x20 */ + xor %l0, %i4, %l0 + xor %l1, %i5, %l1 + xor %o2, %l0, %o2 + xor %o3, %l1, %o3 + stxa %o2, [%i0 + 0x10] %asi + stxa %o3, [%i0 + 0x18] %asi + ldda [%i1 + 0x30] %asi, %i4 /* %i4/%i5 = src1 + 0x30 */ + ldda [%l7 + 0x30] %asi, %l0 /* %l0/%l1 = src2 + 0x30 */ + ldda [%i0 + 0x30] %asi, %o2 /* %o2/%o3 = dest + 0x30 */ + prefetch [%i1 + 0x40], #one_read + prefetch [%l7 + 0x40], #one_read + prefetch [%i0 + 0x40], #n_writes + xor %g2, %i2, %g2 + xor %g3, %i3, %g3 + xor %o0, %g2, %o0 + xor %o1, %g3, %o1 + stxa %o0, [%i0 + 0x20] %asi + stxa %o1, [%i0 + 0x28] %asi + xor %l0, %i4, %l0 + xor %l1, %i5, %l1 + xor %o2, %l0, %o2 + xor %o3, %l1, %o3 + stxa %o2, [%i0 + 0x30] %asi + stxa %o3, [%i0 + 0x38] %asi + add %i0, 0x40, %i0 + add %i1, 0x40, %i1 + subcc %g1, 1, %g1 + bne,pt %xcc, 1b + add %l7, 0x40, %l7 + membar #Sync + wr %g7, 0x0, %asi + ret + restore + .size xor_niagara_3, .-xor_niagara_3 + + .globl xor_niagara_4 + .type xor_niagara_4,#function +xor_niagara_4: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */ + save %sp, -192, %sp + prefetch [%i1], #n_writes + prefetch [%i2], #one_read + prefetch [%i3], #one_read + prefetch [%i4], #one_read + rd %asi, %g7 + wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi + srlx %i0, 6, %g1 + mov %i1, %i0 + mov %i2, %i1 + mov %i3, %l7 + mov %i4, %l6 +1: ldda [%i1 + 0x00] %asi, %i2 /* %i2/%i3 = src1 + 0x00 */ + ldda [%l7 + 0x00] %asi, %i4 /* %i4/%i5 = src2 + 0x00 */ + ldda [%l6 + 0x00] %asi, %g2 /* %g2/%g3 = src3 + 0x00 */ + ldda [%i0 + 0x00] %asi, %l0 /* %l0/%l1 = dest + 0x00 */ + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x10] %asi, %i2 /* %i2/%i3 = src1 + 0x10 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%i7 + 0x10] %asi, %i4 /* %i4/%i5 = src2 + 0x10 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + stxa %l0, [%i0 + 0x00] %asi + stxa %l1, [%i0 + 0x08] %asi + ldda [%i6 + 0x10] %asi, %g2 /* %g2/%g3 = src3 + 0x10 */ + ldda [%i0 + 0x10] %asi, %l0 /* %l0/%l1 = dest + 0x10 */ + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x20] %asi, %i2 /* %i2/%i3 = src1 + 0x20 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%i7 + 0x20] %asi, %i4 /* %i4/%i5 = src2 + 0x20 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + stxa %l0, [%i0 + 0x10] %asi + stxa %l1, [%i0 + 0x18] %asi + ldda [%i6 + 0x20] %asi, %g2 /* %g2/%g3 = src3 + 0x20 */ + ldda [%i0 + 0x20] %asi, %l0 /* %l0/%l1 = dest + 0x20 */ + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x30] %asi, %i2 /* %i2/%i3 = src1 + 0x30 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%i7 + 0x30] %asi, %i4 /* %i4/%i5 = src2 + 0x30 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + stxa %l0, [%i0 + 0x20] %asi + stxa %l1, [%i0 + 0x28] %asi + ldda [%i6 + 0x30] %asi, %g2 /* %g2/%g3 = src3 + 0x30 */ + ldda [%i0 + 0x30] %asi, %l0 /* %l0/%l1 = dest + 0x30 */ + + prefetch [%i1 + 0x40], #one_read + prefetch [%l7 + 0x40], #one_read + prefetch [%l6 + 0x40], #one_read + prefetch [%i0 + 0x40], #n_writes + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + stxa %l0, [%i0 + 0x30] %asi + stxa %l1, [%i0 + 0x38] %asi + + add %i0, 0x40, %i0 + add %i1, 0x40, %i1 + add %l7, 0x40, %l7 + subcc %g1, 1, %g1 + bne,pt %xcc, 1b + add %l6, 0x40, %l6 + membar #Sync + wr %g7, 0x0, %asi + ret + restore + .size xor_niagara_4, .-xor_niagara_4 + + .globl xor_niagara_5 + .type xor_niagara_5,#function +xor_niagara_5: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3, %o5=src4 */ + save %sp, -192, %sp + prefetch [%i1], #n_writes + prefetch [%i2], #one_read + prefetch [%i3], #one_read + prefetch [%i4], #one_read + prefetch [%i5], #one_read + rd %asi, %g7 + wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi + srlx %i0, 6, %g1 + mov %i1, %i0 + mov %i2, %i1 + mov %i3, %l7 + mov %i4, %l6 + mov %i5, %l5 +1: ldda [%i1 + 0x00] %asi, %i2 /* %i2/%i3 = src1 + 0x00 */ + ldda [%l7 + 0x00] %asi, %i4 /* %i4/%i5 = src2 + 0x00 */ + ldda [%l6 + 0x00] %asi, %g2 /* %g2/%g3 = src3 + 0x00 */ + ldda [%l5 + 0x00] %asi, %l0 /* %l0/%l1 = src4 + 0x00 */ + ldda [%i0 + 0x00] %asi, %l2 /* %l2/%l3 = dest + 0x00 */ + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x10] %asi, %i2 /* %i2/%i3 = src1 + 0x10 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%l7 + 0x10] %asi, %i4 /* %i4/%i5 = src2 + 0x10 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + ldda [%l6 + 0x10] %asi, %g2 /* %g2/%g3 = src3 + 0x10 */ + xor %l2, %l0, %l2 + xor %l3, %l1, %l3 + stxa %l2, [%i0 + 0x00] %asi + stxa %l3, [%i0 + 0x08] %asi + ldda [%l5 + 0x10] %asi, %l0 /* %l0/%l1 = src4 + 0x10 */ + ldda [%i0 + 0x10] %asi, %l2 /* %l2/%l3 = dest + 0x10 */ + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x20] %asi, %i2 /* %i2/%i3 = src1 + 0x20 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%l7 + 0x20] %asi, %i4 /* %i4/%i5 = src2 + 0x20 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + ldda [%l6 + 0x20] %asi, %g2 /* %g2/%g3 = src3 + 0x20 */ + xor %l2, %l0, %l2 + xor %l3, %l1, %l3 + stxa %l2, [%i0 + 0x10] %asi + stxa %l3, [%i0 + 0x18] %asi + ldda [%l5 + 0x20] %asi, %l0 /* %l0/%l1 = src4 + 0x20 */ + ldda [%i0 + 0x20] %asi, %l2 /* %l2/%l3 = dest + 0x20 */ + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + ldda [%i1 + 0x30] %asi, %i2 /* %i2/%i3 = src1 + 0x30 */ + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + ldda [%l7 + 0x30] %asi, %i4 /* %i4/%i5 = src2 + 0x30 */ + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + ldda [%l6 + 0x30] %asi, %g2 /* %g2/%g3 = src3 + 0x30 */ + xor %l2, %l0, %l2 + xor %l3, %l1, %l3 + stxa %l2, [%i0 + 0x20] %asi + stxa %l3, [%i0 + 0x28] %asi + ldda [%l5 + 0x30] %asi, %l0 /* %l0/%l1 = src4 + 0x30 */ + ldda [%i0 + 0x30] %asi, %l2 /* %l2/%l3 = dest + 0x30 */ + + prefetch [%i1 + 0x40], #one_read + prefetch [%l7 + 0x40], #one_read + prefetch [%l6 + 0x40], #one_read + prefetch [%l5 + 0x40], #one_read + prefetch [%i0 + 0x40], #n_writes + + xor %i4, %i2, %i4 + xor %i5, %i3, %i5 + xor %g2, %i4, %g2 + xor %g3, %i5, %g3 + xor %l0, %g2, %l0 + xor %l1, %g3, %l1 + xor %l2, %l0, %l2 + xor %l3, %l1, %l3 + stxa %l2, [%i0 + 0x30] %asi + stxa %l3, [%i0 + 0x38] %asi + + add %i0, 0x40, %i0 + add %i1, 0x40, %i1 + add %l7, 0x40, %l7 + add %l6, 0x40, %l6 + subcc %g1, 1, %g1 + bne,pt %xcc, 1b + add %l5, 0x40, %l5 + membar #Sync + wr %g7, 0x0, %asi + ret + restore + .size xor_niagara_5, .-xor_niagara_5 diff --git a/include/asm-sparc64/xor.h b/include/asm-sparc64/xor.h index 8b3a7e4b6062..8ce3f1813e28 100644 --- a/include/asm-sparc64/xor.h +++ b/include/asm-sparc64/xor.h @@ -2,9 +2,11 @@ * include/asm-sparc64/xor.h * * High speed xor_block operation for RAID4/5 utilizing the - * UltraSparc Visual Instruction Set. + * 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 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -16,8 +18,7 @@ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include -#include +#include extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, @@ -37,4 +38,29 @@ static struct xor_block_template xor_block_VIS = { .do_5 = xor_vis_5, }; -#define XOR_TRY_TEMPLATES xor_speed(&xor_block_VIS) +extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); +extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, + unsigned long *); +extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, + unsigned long *, unsigned long *); +extern 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 ? &xor_block_niagara : &xor_block_VIS) -- 2.20.1