From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755208AbbINMYZ (ORCPT ); Mon, 14 Sep 2015 08:24:25 -0400 Received: from terminus.zytor.com ([198.137.202.10]:35226 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751549AbbINMYV (ORCPT ); Mon, 14 Sep 2015 08:24:21 -0400 Date: Mon, 14 Sep 2015 05:23:16 -0700 From: tip-bot for Dave Hansen Message-ID: Cc: luto@amacapital.net, brgerst@gmail.com, hpa@zytor.com, dvlasenk@redhat.com, tim.c.chen@linux.intel.com, linux-kernel@vger.kernel.org, peterz@infradead.org, mingo@kernel.org, fenghua.yu@intel.com, bp@alien8.de, tglx@linutronix.de, torvalds@linux-foundation.org, dave.hansen@linux.intel.com Reply-To: tglx@linutronix.de, peterz@infradead.org, bp@alien8.de, fenghua.yu@intel.com, mingo@kernel.org, dave.hansen@linux.intel.com, torvalds@linux-foundation.org, tim.c.chen@linux.intel.com, linux-kernel@vger.kernel.org, brgerst@gmail.com, luto@amacapital.net, dvlasenk@redhat.com, hpa@zytor.com In-Reply-To: <20150902233129.B4EB045F@viggo.jf.intel.com> References: <20150902233129.B4EB045F@viggo.jf.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/fpu] x86/fpu: Rework YMM definition Git-Commit-ID: 83aa3c45307228af4329cbb915a2f2142e5479ad X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 83aa3c45307228af4329cbb915a2f2142e5479ad Gitweb: http://git.kernel.org/tip/83aa3c45307228af4329cbb915a2f2142e5479ad Author: Dave Hansen AuthorDate: Wed, 2 Sep 2015 16:31:29 -0700 Committer: Ingo Molnar CommitDate: Mon, 14 Sep 2015 12:22:00 +0200 x86/fpu: Rework YMM definition We are about to rework all of the "extended state" definitions. This makes the 'ymm' naming consistent with the AVX-512 types we will introduce later. We also add a convenience type: "reg_128_bit" so that we do not have to spell out our arithmetic. Signed-off-by: Dave Hansen Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: Fenghua Yu Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Tim Chen Cc: dave@sr71.net Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20150902233129.B4EB045F@viggo.jf.intel.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/fpu/types.h | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h index 4d8c200..eb0c9a2 100644 --- a/arch/x86/include/asm/fpu/types.h +++ b/arch/x86/include/asm/fpu/types.h @@ -128,17 +128,23 @@ enum xfeature { #define FIRST_EXTENDED_XFEATURE XFEATURE_YMM +struct reg_128_bit { + u8 regbytes[128/8]; +}; + /* + * State component 2: + * * There are 16x 256-bit AVX registers named YMM0-YMM15. * The low 128 bits are aliased to the 16 SSE registers (XMM0-XMM15) - * and are stored in 'struct fxregs_state::xmm_space[]'. + * and are stored in 'struct fxregs_state::xmm_space[]' in the + * "legacy" area. * - * The high 128 bits are stored here: - * 16x 128 bits == 256 bytes. + * The high 128 bits are stored here. */ struct ymmh_struct { - u8 ymmh_space[256]; -}; + struct reg_128_bit hi_ymm[16]; +} __packed; /* Intel MPX support: */