From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:8912 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726100AbfKDI45 (ORCPT ); Mon, 4 Nov 2019 03:56:57 -0500 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id xA48uE4A074562 for ; Mon, 4 Nov 2019 03:56:54 -0500 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0a-001b2d01.pphosted.com with ESMTP id 2w2dk56hve-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 04 Nov 2019 03:56:35 -0500 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 4 Nov 2019 08:54:44 -0000 From: Janosch Frank Subject: [kvm-unit-tests PATCH] s390x: Use loop to save and restore fprs Date: Mon, 4 Nov 2019 03:55:33 -0500 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20191104085533.2892-1-frankja@linux.ibm.com> Sender: linux-s390-owner@vger.kernel.org List-ID: To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, thuth@redhat.com, david@redhat.com, pmorel@linux.ibm.com Let's save some lines in the assembly by using a loop to save and restore the fprs. Signed-off-by: Janosch Frank --- s390x/cstart64.S | 38 ++++++-------------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/s390x/cstart64.S b/s390x/cstart64.S index 5dc1577..8e2b21e 100644 --- a/s390x/cstart64.S +++ b/s390x/cstart64.S @@ -99,44 +99,18 @@ memsetxc: lctlg %c0, %c0, 0(%r1) /* save fprs 0-15 + fpc */ la %r1, GEN_LC_SW_INT_FPRS - std %f0, 0(%r1) - std %f1, 8(%r1) - std %f2, 16(%r1) - std %f3, 24(%r1) - std %f4, 32(%r1) - std %f5, 40(%r1) - std %f6, 48(%r1) - std %f7, 56(%r1) - std %f8, 64(%r1) - std %f9, 72(%r1) - std %f10, 80(%r1) - std %f11, 88(%r1) - std %f12, 96(%r1) - std %f13, 104(%r1) - std %f14, 112(%r1) - std %f15, 120(%r1) + .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + std \i, \i * 8(%r1) + .endr stfpc GEN_LC_SW_INT_FPC .endm .macro RESTORE_REGS /* restore fprs 0-15 + fpc */ la %r1, GEN_LC_SW_INT_FPRS - ld %f0, 0(%r1) - ld %f1, 8(%r1) - ld %f2, 16(%r1) - ld %f3, 24(%r1) - ld %f4, 32(%r1) - ld %f5, 40(%r1) - ld %f6, 48(%r1) - ld %f7, 56(%r1) - ld %f8, 64(%r1) - ld %f9, 72(%r1) - ld %f10, 80(%r1) - ld %f11, 88(%r1) - ld %f12, 96(%r1) - ld %f13, 104(%r1) - ld %f14, 112(%r1) - ld %f15, 120(%r1) + .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + ld \i, \i * 8(%r1) + .endr lfpc GEN_LC_SW_INT_FPC /* restore cr0 */ lctlg %c0, %c0, GEN_LC_SW_INT_CR0 -- 2.20.1