Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752767AbdFLP1r (ORCPT ); Mon, 12 Jun 2017 11:27:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39426 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752135AbdFLP1p (ORCPT ); Mon, 12 Jun 2017 11:27:45 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Waldemar Brodkorb , "David S. Miller" Subject: [PATCH 4.11 020/150] sparc64: Add __multi3 for gcc 7.x and later. Date: Mon, 12 Jun 2017 17:23:47 +0200 Message-Id: <20170612152520.317959728@linuxfoundation.org> X-Mailer: git-send-email 2.13.1 In-Reply-To: <20170612152519.404936272@linuxfoundation.org> References: <20170612152519.404936272@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1766 Lines: 67 4.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: "David S. Miller" [ Upstream commit 1b4af13ff2cc6897557bb0b8d9e2fad4fa4d67aa ] Reported-by: Waldemar Brodkorb Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- arch/sparc/lib/Makefile | 1 + arch/sparc/lib/multi3.S | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 arch/sparc/lib/multi3.S --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -15,6 +15,7 @@ lib-$(CONFIG_SPARC32) += copy_user.o loc lib-$(CONFIG_SPARC64) += atomic_64.o lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o +lib-$(CONFIG_SPARC64) += multi3.o lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o lib-$(CONFIG_SPARC64) += csum_copy.o csum_copy_from_user.o csum_copy_to_user.o --- /dev/null +++ b/arch/sparc/lib/multi3.S @@ -0,0 +1,35 @@ +#include +#include + + .text + .align 4 +ENTRY(__multi3) /* %o0 = u, %o1 = v */ + mov %o1, %g1 + srl %o3, 0, %g4 + mulx %g4, %g1, %o1 + srlx %g1, 0x20, %g3 + mulx %g3, %g4, %g5 + sllx %g5, 0x20, %o5 + srl %g1, 0, %g4 + sub %o1, %o5, %o5 + srlx %o5, 0x20, %o5 + addcc %g5, %o5, %g5 + srlx %o3, 0x20, %o5 + mulx %g4, %o5, %g4 + mulx %g3, %o5, %o5 + sethi %hi(0x80000000), %g3 + addcc %g5, %g4, %g5 + srlx %g5, 0x20, %g5 + add %g3, %g3, %g3 + movcc %xcc, %g0, %g3 + addcc %o5, %g5, %o5 + sllx %g4, 0x20, %g4 + add %o1, %g4, %o1 + add %o5, %g3, %g2 + mulx %g1, %o2, %g1 + add %g1, %g2, %g1 + mulx %o0, %o3, %o0 + retl + add %g1, %o0, %o0 +ENDPROC(__multi3) +EXPORT_SYMBOL(__multi3)