From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 62DF6C433EF for ; Thu, 30 Jun 2022 13:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:In-Reply-To: Date:From:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=1NVSZtdOQVofoelvVRYqpaXGnF1TGzC8BzflcSbjMKs=; b=MySfLd3+90iuqn CYjfDPZr7S5ujs09IO4psKGzrNpuws2UD1kYqXxmTl0hTGsDq6WjcLCRIC/5U3rv4Q2hi9WdaN4fK 7bTgftjv5lZg5K1/MWwaI+P8rScsb/ln7RcLkvEnQSq9kdBXBrlcXhJ7y5fSr7GdFyQdEmPsjekRa jhf3tr3VUQrkxaIn8X3aJjJXhJPXhOCj3TERWUSbl5Fw/d+575nShUytFjWpgcD9olQ+tqfmI2fz2 7RXgu8JWdvn44bgs/AoQwzufbr0IAsuho4VlHoyecELhxntNs15lFb6OZhjSAazO05aurfNTU9kNi uJgDWGh0Z27z0FvqWtIA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o6uFe-00HIvR-HE; Thu, 30 Jun 2022 13:30:34 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o6uF3-00HIhp-H0 for linux-arm-kernel@lists.infradead.org; Thu, 30 Jun 2022 13:29:59 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CE52BB82ABF; Thu, 30 Jun 2022 13:29:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ABB8C34115; Thu, 30 Jun 2022 13:29:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1656595794; bh=iT7FuWpNL+32JZ/4gTW80WSiuRoiyL4gyjnuM5hf2bM=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=ABoGQeAzCuI5OAoc1xK/3DCO65lDg6MBjRIV3UEKc+vvK8VNat1CtroIawwE9Ed+B NeK9GM/WRXXfD3xeAsbMjypc91h7JA49md5+Ep6QijJRFrdm+MJD3CzOdOSYNLzo4r F1LHBoLDTJFYHRhp7w7hrIzDkvFkwJUpdBIMD0ds= Subject: Patch "ARM: 8989/1: use .fpu assembler directives instead of assembler arguments" has been added to the 5.4-stable tree To: andre.przywara@arm.com,ardb@kernel.org,caij2003@gmail.com,catalin.marinas@arm.com,clang-built-linux@googlegroups.com,davem@davemloft.net,f.fainelli@gmail.com,gregkh@linuxfoundation.org,herbert@gondor.apana.org.au,linux-arm-kernel@lists.infradead.org,linux@armlinux.org.uk,ndesaulniers@google.com,nico@fluxnic.net,rmk+kernel@armlinux.org.uk,sashal@kernel.org,stefan@agner.ch,tony@atomide.com,ulli.kroll@googlemail.com Cc: From: Date: Thu, 30 Jun 2022 15:29:30 +0200 In-Reply-To: <20220629180227.3408104-2-f.fainelli@gmail.com> Message-ID: <165659577016271@kroah.com> MIME-Version: 1.0 X-stable: commit X-Patchwork-Hint: ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220630_062957_949705_A8CA96D3 X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is a note to let you know that I've just added the patch titled ARM: 8989/1: use .fpu assembler directives instead of assembler arguments to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-8989-1-use-.fpu-assembler-directives-instead-of-assembler-arguments.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From foo@baz Thu Jun 30 03:27:07 PM CEST 2022 From: Florian Fainelli Date: Wed, 29 Jun 2022 11:02:17 -0700 Subject: ARM: 8989/1: use .fpu assembler directives instead of assembler arguments To: stable@vger.kernel.org Cc: Stefan Agner , Russell King , Florian Fainelli , Russell King , Herbert Xu , "David S. Miller" , Tony Lindgren , Hans Ulli Kroll , Ard Biesheuvel , Nick Desaulniers , Nicolas Pitre , Andre Przywara , Greg Kroah-Hartman , Catalin Marinas , Jian Cai , linux-arm-kernel@lists.infradead.org (moderated list:ARM PORT), linux-kernel@vger.kernel.org (open list), linux-crypto@vger.kernel.org (open list:CRYPTO API), linux-omap@vger.kernel.org (open list:OMAP2+ SUPPORT), clang-built-linux@googlegroups.com (open list:CLANG/LLVM BUILD SUPPORT), Sasha Levin Message-ID: <20220629180227.3408104-2-f.fainelli@gmail.com> From: Stefan Agner commit a6c30873ee4a5cc0549c1973668156381ab2c1c4 upstream Explicit FPU selection has been introduced in commit 1a6be26d5b1a ("[ARM] Enable VFP to be built when non-VFP capable CPUs are selected") to make use of assembler mnemonics for VFP instructions. However, clang currently does not support passing assembler flags like this and errors out with: clang-10: error: the clang compiler does not support '-Wa,-mfpu=softvfp+vfp' Make use of the .fpu assembler directives to select the floating point hardware selectively. Also use the new unified assembler language mnemonics. This allows to build these procedures with Clang. Link: https://github.com/ClangBuiltLinux/linux/issues/762 Signed-off-by: Stefan Agner Signed-off-by: Russell King Signed-off-by: Florian Fainelli Signed-off-by: Greg Kroah-Hartman --- arch/arm/vfp/Makefile | 2 -- arch/arm/vfp/vfphw.S | 30 ++++++++++++++++++++---------- 2 files changed, 20 insertions(+), 12 deletions(-) --- a/arch/arm/vfp/Makefile +++ b/arch/arm/vfp/Makefile @@ -8,6 +8,4 @@ # ccflags-y := -DDEBUG # asflags-y := -DDEBUG -KBUILD_AFLAGS :=$(KBUILD_AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp -mfloat-abi=soft) - obj-y += vfpmodule.o entry.o vfphw.o vfpsingle.o vfpdouble.o --- a/arch/arm/vfp/vfphw.S +++ b/arch/arm/vfp/vfphw.S @@ -253,11 +253,14 @@ vfp_current_hw_state_address: ENTRY(vfp_get_float) tbl_branch r0, r3, #3 + .fpu vfpv2 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: mrc p10, 0, r0, c\dr, c0, 0 @ fmrs r0, s0 +1: vmov r0, s\dr ret lr .org 1b + 8 -1: mrc p10, 0, r0, c\dr, c0, 4 @ fmrs r0, s1 + .endr + .irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +1: vmov r0, s\dr ret lr .org 1b + 8 .endr @@ -265,11 +268,14 @@ ENDPROC(vfp_get_float) ENTRY(vfp_put_float) tbl_branch r1, r3, #3 + .fpu vfpv2 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0 +1: vmov s\dr, r0 ret lr .org 1b + 8 -1: mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1 + .endr + .irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +1: vmov s\dr, r0 ret lr .org 1b + 8 .endr @@ -277,15 +283,17 @@ ENDPROC(vfp_put_float) ENTRY(vfp_get_double) tbl_branch r0, r3, #3 + .fpu vfpv2 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: fmrrd r0, r1, d\dr +1: vmov r0, r1, d\dr ret lr .org 1b + 8 .endr #ifdef CONFIG_VFPv3 @ d16 - d31 registers - .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: mrrc p11, 3, r0, r1, c\dr @ fmrrd r0, r1, d\dr + .fpu vfpv3 + .irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +1: vmov r0, r1, d\dr ret lr .org 1b + 8 .endr @@ -299,15 +307,17 @@ ENDPROC(vfp_get_double) ENTRY(vfp_put_double) tbl_branch r2, r3, #3 + .fpu vfpv2 .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: fmdrr d\dr, r0, r1 +1: vmov d\dr, r0, r1 ret lr .org 1b + 8 .endr #ifdef CONFIG_VFPv3 + .fpu vfpv3 @ d16 - d31 registers - .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 -1: mcrr p11, 3, r0, r1, c\dr @ fmdrr r0, r1, d\dr + .irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +1: vmov d\dr, r0, r1 ret lr .org 1b + 8 .endr Patches currently in stable-queue which might be from f.fainelli@gmail.com are queue-5.4/arm-8971-1-replace-the-sole-use-of-a-symbol-with-its-definition.patch queue-5.4/arm-omap2-drop-unnecessary-adrl.patch queue-5.4/arm-8933-1-replace-sun-solaris-style-flag-on-section-directive.patch queue-5.4/crypto-arm-sha256-neon-avoid-adrl-pseudo-instruction.patch queue-5.4/arm-9029-1-make-iwmmxt.s-support-clang-s-integrated-assembler.patch queue-5.4/net-mscc-ocelot-allow-unregistered-ip-multicast-flooding.patch queue-5.4/crypto-arm-sha512-neon-avoid-adrl-pseudo-instruction.patch queue-5.4/arm-8989-1-use-.fpu-assembler-directives-instead-of-assembler-arguments.patch queue-5.4/crypto-arm-ghash-ce-define-fpu-before-fpu-registers-are-referenced.patch queue-5.4/arm-8929-1-use-apsr_nzcv-instead-of-r15-as-mrc-operand.patch queue-5.4/crypto-arm-use-kconfig-based-compiler-checks-for-crypto-opcodes.patch queue-5.4/arm-8990-1-use-vfp-assembler-mnemonics-in-register-load-store-macros.patch _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel