1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or https://opensource.org/licenses/CDDL-1.0. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright (c) 2022 by Attila Fülöp <attila@fueloep.org> 25# 26 27. $STF_SUITE/include/libtest.shlib 28 29# 30# DESCRIPTION: 31# Make sure we have SIMD support, so it will not go away without notice 32# 33# STRATEGY: 34# 1. Test if we are running on a Linux x86 system with SSE support 35# 2. If so, check if the zfs_fletcher_4_impl module parameter contains 36# a sse implementation 37# 3. If not fail the test, otherwise pass it 38 39log_note "Testing if we support SIMD instructions (Linux x86 only)" 40 41if ! is_linux; then 42 log_unsupported "Not a Linux System" 43fi 44 45case "$(uname -m)" in 46i?86|x86_64) 47 typeset -R modparam="/sys/module/zfs/parameters/zfs_fletcher_4_impl" 48 if awk '/^flags/ {exit !/sse/}' /proc/cpuinfo; then 49 log_must grep -q sse "$modparam" 50 log_pass "SIMD instructions supported" 51 else 52 log_unsupported "No FPU present" 53 fi 54 ;; 55*) 56 log_unsupported "Not a x86 CPU" 57 ;; 58esac 59