From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 AE3A72D3759 for ; Mon, 6 Oct 2025 13:57:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759759067; cv=none; b=H0+xK9aR2PHPkSO2ZjeexcToJW//S9vAysViV3a/jferBzNobmaBt8gVNtP9doDRjp9R5BGuLkbWE/T6Tbjwyfwwv3FEVA1Zka1sjWBKDZHRwBleVQjkkIfPdlsx7xb9Aj1o25b5femCNL2gYI82gRG5ODUF8QDWQTy4bi9Lmrk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759759067; c=relaxed/simple; bh=aoHPu3E0mvHoalx0FWQM3EH+lnlTpy4HtT99+90hPDc=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=KFRk1WGeOSh9wdpgZ0g6ZQW0qDi84+WHsCZrMlkxZ4vnzd+LXqGCiyOZVDB3Nko8eXdQx/2Oi3pTjqgd4ir0PAN8i8KMHIaD1K9AzNznXcnvOK1irgnO8NIk9H/3mnugRk+eLgfaqP3HZd9jnjuWl98qW9olWKelQr3bKs1ZDhg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Xe94k6yo; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Xe94k6yo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1759759064; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=N38NCXKatF4Nc9lTi4kU9EIStYgT9YorHxjupIC+4LM=; b=Xe94k6yoBohVja/fm+Awb2foeGBYDIIapZ9QvawSy8Jx8YGdKmSM4QQKk4iibJCZiSe54Q gBlnaXphDubGHU3nUg7iw51qGnQ3MDHEtfKCvdWEIQFtiUMWDyxXJRjj68Cpa4qQysKa4f mQd6S9D9nkSsyuvweLQ/jDZNO+vsB8w= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-253--WCvi3fxOsqEL43hVssEvw-1; Mon, 06 Oct 2025 09:57:43 -0400 X-MC-Unique: -WCvi3fxOsqEL43hVssEvw-1 X-Mimecast-MFC-AGG-ID: -WCvi3fxOsqEL43hVssEvw_1759759061 Received: by mail-wr1-f69.google.com with SMTP id ffacd0b85a97d-3f6b44ab789so2553948f8f.3 for ; Mon, 06 Oct 2025 06:57:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759759061; x=1760363861; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=N38NCXKatF4Nc9lTi4kU9EIStYgT9YorHxjupIC+4LM=; b=W8iJXRCErKK9cfhdBUQ1Sca6z4i71YJmcXIUEbG+UTiQhu6QH9P5f3QPDWruv7jQZt sq+ZA3f23eeiCftNLztr+j4WdJkANYRnIY/cEz0aeOp0ZBFY4hum42fF7R6hXkgHY93t DRWqryxf8e2d4M3ya40WAuCoBpfetDG+dhRcJcIga2YlH0ZrO0tk4pjSLipg+4FlH/Mp r+cxSMl9NaTvm4mGtjvTnJOLa0L81ou370/jI20OXqGas69ZwKUYVPGGU1LjrVsYu4P3 BG6lGBSdfYaxjp9cBtiWMZSoAx+dYdudYbuZwrhOlMmvXBR3jdfodOIhUBjFc4SXNmK7 BeYA== X-Forwarded-Encrypted: i=1; AJvYcCUvLnVY3CpfnMdeO6pEMeSbw9NXiKb5pDHCKGn73nkb1JuViOTOm9CSJIae18ram4vBgtrO@lists.linux.dev X-Gm-Message-State: AOJu0YwatfG5LtBKE9IMm1XlcATyfybfR52qnuYiRhvx6587pnMwigoL pXw2E12YkTMlm/BgxTyBsqrEeh8tLEUWpOS/cAFqxWifBWaLWhPMt1kBtC5Ga06zQLq5/wJJtzZ Oi6IFwR/ms/Sc3txQ5VEe7kgVzMI8jpcawnHw2uQElo2KgMZtDCDSlbs= X-Gm-Gg: ASbGncu41fa8MTA1YH8A9RgF1io0nCZxIXZHILz93w+JX3ULc/HOYhKeLYDjlPWFN7I zAlrvLT4WMwQtMBSmzzZdWdJxBBpJ5STbiRwS79UxC71aqhd37ZxQrsTDGH7rVUkze053s8hm73 kviZiX9anUaKWXugm4gX3pkOm8wnBNegNrEKgB0qvHYIlRyOtFU+/i3vQMPf63sBq3O17uR9+B2 sVTDwDYhULgu6KHvPmMerTJ/JrnipHm9W19PkqIamr+31rLwTmxK15YW8au7FCmDN4dkkcp6eXK ep8hkgNdWnTiFtSMW5IggViGSMGm2w6Dm4jffGTh8j7ckUXEsvw+k7x6iA+XOrHiaFHNZKDY9u5 a8aMbSRWbkPJ5inIK7+A= X-Received: by 2002:a05:6000:24c8:b0:3e7:471c:1de3 with SMTP id ffacd0b85a97d-4256714c990mr8743308f8f.14.1759759061347; Mon, 06 Oct 2025 06:57:41 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGSEXhNL5qt3C2EExsoRcqgHMQ8DFjBOOTUMJgsVGWdtBaHzjZoYrl+W+SOqr9EcfM/+bfqVw== X-Received: by 2002:a05:6000:24c8:b0:3e7:471c:1de3 with SMTP id ffacd0b85a97d-4256714c990mr8743277f8f.14.1759759060881; Mon, 06 Oct 2025 06:57:40 -0700 (PDT) Received: from rh (p200300f6af131a0027bd20bfc18c447d.dip0.t-ipconnect.de. [2003:f6:af13:1a00:27bd:20bf:c18c:447d]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4255d8a6c54sm21356683f8f.11.2025.10.06.06.57.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Oct 2025 06:57:40 -0700 (PDT) Date: Mon, 6 Oct 2025 15:57:38 +0200 (CEST) From: Sebastian Ott To: Tariq Toukan cc: Catalin Marinas , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" , Saeed Mahameed , Leon Romanovsky , Mark Bloch , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Gal Pressman , Leon Romanovsky , Jason Gunthorpe , 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 , Nathan Chancellor , Nick Desaulniers , Salil Mehta , Sven Schnelle , Thomas Gleixner , x86@kernel.org, Yisen Zhuang , Arnd Bergmann , Leon Romanovsky , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Rutland , Michael Guralnik , patches@lists.linux.dev, Niklas Schnelle , Jijie Shao , Simon Horman , Patrisious Haddad Subject: Re: [PATCH net-next V6] net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs In-Reply-To: <1759093688-841357-1-git-send-email-tariqt@nvidia.com> Message-ID: References: <1759093688-841357-1-git-send-email-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 6M8CsI5KxDGYd-nbsfkFrZKMq-S3m_onR_rIPGZLBmk_1759759061 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII; format=flowed On Mon, 29 Sep 2025, Tariq Toukan wrote: > +static void mlx5_iowrite64_copy(struct mlx5_wc_sq *sq, __be32 mmio_wqe[16], > + size_t mmio_wqe_size, unsigned int offset) > +{ > +#if IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && IS_ENABLED(CONFIG_ARM64) > + if (cpu_has_neon()) { > + kernel_neon_begin(); > + asm volatile > + (".arch_extension simd;\n\t" > + "ld1 {v0.16b, v1.16b, v2.16b, v3.16b}, [%0]\n\t" > + "st1 {v0.16b, v1.16b, v2.16b, v3.16b}, [%1]" > + : > + : "r"(mmio_wqe), "r"(sq->bfreg.map + offset) > + : "memory", "v0", "v1", "v2", "v3"); > + kernel_neon_end(); > + return; > + } > +#endif This one breaks the build for me: /tmp/cc2vw3CJ.s: Assembler messages: /tmp/cc2vw3CJ.s:391: Error: unknown architectural extension `simd;' Removing the extra ";" after simd seems to fix it. Regards, Sebastian