From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from flow-b2-smtp.messagingengine.com (flow-b2-smtp.messagingengine.com [202.12.124.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B59F9280A56; Tue, 16 Sep 2025 08:58:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.12.124.137 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758013139; cv=none; b=lwlSpGC7XDQMIfDOX9sLB6QiqnV+sBLp+fOE4pNaPbzvIZtMBqMAlIntPxI/pfx167+zd+we70676XQ6CvpkuTs1X2hW7gypfaFtCHgknjulfD/wbwugHbqVCtB9PVEL09A7jZTWEx149h7a1lPVwF6vq4scdQUabgZCe6eBpQY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758013139; c=relaxed/simple; bh=RDFVS/12vlPEvpAPazD0+caxnLwdBqgtuPi/RSkpkIE=; h=MIME-Version:Date:From:To:Cc:Message-Id:In-Reply-To:References: Subject:Content-Type; b=jHGPNkiRpIL4Cofn2PXWC5/gTijneB6X31P/fjW0SDcsqb3RTT6WwU/SN22+QQTkvhnP4mDkbTJ7VZ/gTrCR/hhDwQXdRiLc9RnYlIBuGuwKYlNYzcPKTSH5rNQnk5idt+hVNRN1kTNKvuQ0qM8J+1ZtsnI3/M08is7NIzshBcE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arndb.de; spf=pass smtp.mailfrom=arndb.de; dkim=pass (2048-bit key) header.d=arndb.de header.i=@arndb.de header.b=p/B+WJFJ; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=kZSbvBvX; arc=none smtp.client-ip=202.12.124.137 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arndb.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arndb.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=arndb.de header.i=@arndb.de header.b="p/B+WJFJ"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="kZSbvBvX" Received: from phl-compute-05.internal (phl-compute-05.internal [10.202.2.45]) by mailflow.stl.internal (Postfix) with ESMTP id 5ED701300B79; Tue, 16 Sep 2025 04:58:54 -0400 (EDT) Received: from phl-imap-02 ([10.202.2.81]) by phl-compute-05.internal (MEProxy); Tue, 16 Sep 2025 04:58:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm3; t=1758013134; x=1758020334; bh=9M1JEPa5y3WON6Gl+eiqRK9O7fk6z6pQgd71K0v19EU=; b= p/B+WJFJ3zvsd0DyDuUadqyZnXAI6cYiqhiv6unBmCXntIE8psMAM6DfQy7CG4tu dwuUTBcBHSAmSEokKeGyllqybSHONkBvptXBA49szippYTJiD18aJSwaXIGwCtNY M4Vexja9gLMW6tG7GZSUPNj3XbnBGmnMLH8EJxrwOk1Pupiwv1Y8zd0I3brVRvq4 D9DwKD12EGhlSPUUQlTZtgs7UmYHav2Vee+sSpz2O3FkdqJ04sN2DYT0Fa261rdJ zUCK8nQojIxcEGwn8mnKjGJLQ7OKURxhnaFzwYgYF5uPtmLhEztOEtqrDnlAIMa6 KsXxnW3BCtMxV2+qIVjtRw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1758013134; x= 1758020334; bh=9M1JEPa5y3WON6Gl+eiqRK9O7fk6z6pQgd71K0v19EU=; b=k ZSbvBvXbZuuI9RT3eGTsfHKByF+ZYaWJ2C56VraoQgu7pifGWWofVsbIIEVdktZD Zgq9DAEqiHxGxdfMtJ+kR7aKKqn1sPCY8D596jXBIhNGyK/SBEeXdScxW0InqE6O qrY5nRnQXuYODkZ3xzAIHdQT7dtovownRaXBEC5LhXtolsSjNT+UIzmLu3WT+1ie x36JKxShesGDBx1YNAhv4/BnouYSGpy6XplG4rLes4MUUJXHfdacX4Qc+hwgSNTq edzDF2TvkCrNunZbdVxobnKXzw5lWyp1YcjOcWz+B929Qbl+ty+UkBq+ymJtzfNC L+YLd5TA9UfPFkMGA66Kg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdeggdegtdduhecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjug hrpefoggffhffvvefkjghfufgtgfesthhqredtredtjeenucfhrhhomhepfdetrhhnugcu uegvrhhgmhgrnhhnfdcuoegrrhhnugesrghrnhgusgdruggvqeenucggtffrrghtthgvrh hnpedvhfdvkeeuudevfffftefgvdevfedvleehvddvgeejvdefhedtgeegveehfeeljeen ucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrrhhnug esrghrnhgusgdruggvpdhnsggprhgtphhtthhopeehtddpmhhouggvpehsmhhtphhouhht pdhrtghpthhtohepsghpsegrlhhivghnkedruggvpdhrtghpthhtoheptggrthgrlhhinh drmhgrrhhinhgrshesrghrmhdrtghomhdprhgtphhtthhopehmrghrkhdrrhhuthhlrghn ugesrghrmhdrtghomhdprhgtphhtthhopegurghvvghmsegurghvvghmlhhofhhtrdhnvg htpdhrtghpthhtohepvgguuhhmrgiivghtsehgohhoghhlvgdrtghomhdprhgtphhtthho pehjuhhsthhinhhsthhithhtsehgohhoghhlvgdrtghomhdprhgtphhtthhopehmohhrsg hosehgohhoghhlvgdrtghomhdprhgtphhtthhopehnuggvshgruhhlnhhivghrshesghho ohhglhgvrdgtohhmpdhrtghpthhtohepshgrlhhilhdrmhgvhhhtrgeshhhurgifvghird gtohhm X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id E3F0B700069; Tue, 16 Sep 2025 04:58:52 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: ApGCQqXJ7W6B Date: Tue, 16 Sep 2025 10:58:32 +0200 From: "Arnd Bergmann" To: "Patrisious Haddad" , "Nathan Chancellor" , "Jason Gunthorpe" Cc: "Tariq Toukan" , "Catalin Marinas" , "Eric Dumazet" , "Jakub Kicinski" , "Paolo Abeni" , "Andrew Lunn" , "David S . Miller" , "Saeed Mahameed" , "Leon Romanovsky" , "Mark Bloch" , "Sabrina Dubroca" , Netdev , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, "Gal Pressman" , "Leon Romanovsky" , "Michael Guralnik" , "Moshe Shemesh" , "Will Deacon" , "Alexander Gordeev" , "Andrew Morton" , "Christian Borntraeger" , "Borislav Petkov" , "Dave Hansen" , "Gerald Schaefer" , "Vasily Gorbik" , "Heiko Carstens" , "H. Peter Anvin" , "Justin Stitt" , linux-s390@vger.kernel.org, llvm@lists.linux.dev, "Ingo Molnar" , "Bill Wendling" , "Nick Desaulniers" , "Salil Mehta" , "Sven Schnelle" , "Thomas Gleixner" , x86@kernel.org, "Yisen Zhuang" , "Leon Romanovsky" , Linux-Arch , linux-arm-kernel@lists.infradead.org, "Mark Rutland" , "Michael Guralnik" , patches@lists.linux.dev, "Niklas Schnelle" , "Jijie Shao" Message-Id: <9d4cd8d2-343e-4448-ab59-65e69728c850@app.fastmail.com> In-Reply-To: References: <1757925308-614943-1-git-send-email-tariqt@nvidia.com> <20250915221859.GB925462@ax162> <20250915222758.GC925462@ax162> <20250915224810.GM1024672@nvidia.com> <20250915231506.GA973819@ax162> Subject: Re: [PATCH net-next V2] net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Tue, Sep 16, 2025, at 10:39, Patrisious Haddad wrote: > On 9/16/2025 2:15 AM, Nathan Chancellor wrote: >> External email: Use caution opening links or attachments > > ifeq ($(ARCH),arm64) > =C2=A0 =C2=A0 =C2=A0 =C2=A0 CFLAGS_lib/neon_iowrite64_copy.o +=3D -ff= reestanding > =C2=A0 =C2=A0 =C2=A0 =C2=A0 CFLAGS_REMOVE_lib/neon_iowrite64_copy.o += =3D -mgeneral-regs-only > endif > > Which is actually equivalent to the diff you sent, Thanks for the=20 > heads-up will fix and resend. > I think it's better to handle this inside of the inline asm itself by adding ".arch_extension simd;\n\t" at the start of it. Arnd