From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 178BB2D3759 for ; Mon, 6 Oct 2025 13:57:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759759070; cv=none; b=Pf383USmGjSDSzJg67tn8xUdN4OG+q9tR6Kmvdno6crlezlbJKLqwWIvxHOjl90HIcL1bMPqqnhUBfAO+yAOSIHbsrPxm6w3UFag96xRh4fCpG0vNWAIPWC5Lx27idIY57pk94m6dNxqNf8zWaX8xFTEYimHhVvA8xszkEawp5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759759070; c=relaxed/simple; bh=aoHPu3E0mvHoalx0FWQM3EH+lnlTpy4HtT99+90hPDc=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=enUnSFRcW4DQ1KSMAm4UkFLY5s7rchs+PvkiGaR03PW3HnUmBNG8/9sxfdY4DBERYRTMWrUDNOj3qgAl12aoJerJkmnU58uwYfnl4EjFZhrb8zTjXd6QeQ8EE7P2/jfYZ1H7/dedMMBISzPCxPvT7KyS0/yA9ssIdJNL898YUsE= 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=M6HJjoju; arc=none smtp.client-ip=170.10.133.124 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="M6HJjoju" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1759759067; 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=M6HJjojueNndtjlEmuosK+WA77fZPgzul4HhCQ7HEG3sT2fqwl515dDivx+tAYsQTjkf/b iagd0BkZN170wfJVxCSmhdrrOYQYZUQnJgX86P/cKULdefwcSrRK3/d9xEIL5b3vtAxBqO JqcmbxQ9zat3EkvryyA+1K2GoA+9AFM= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-694-jgtYKLSpOx25Mu1NI9VKIQ-1; Mon, 06 Oct 2025 09:57:42 -0400 X-MC-Unique: jgtYKLSpOx25Mu1NI9VKIQ-1 X-Mimecast-MFC-AGG-ID: jgtYKLSpOx25Mu1NI9VKIQ_1759759061 Received: by mail-wr1-f71.google.com with SMTP id ffacd0b85a97d-3ecdc9dbc5fso2742582f8f.1 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=MENaX0BeLpjjJzO1PeE9fyeEaOv/BQJQmPLHrCc/B4mXPzk9tfC/ACFN3SjRWgOPOu Ds3KxJa9yceERBB7xTa3k2KMo5ryM+RPdK3Q6cklCRykJwDRH8m1KZtmaF0Sn1uFuQLs aIiiIHSdb06R8hvi2fRfrAbXLszg/SOiZjd1qry13D/kZ2Kesbbw9N1pDhn2xLZ0nxQi TAeNwDcujKKoF9wlsF1dS2iOHsld+LA2WQJCFgxc4s40Dk2uhruYwCXJJ+yXI0+lTnaa yG0misc9RQGE5SX+W4AGhCnvNYSt4+xeQpNdwrZVaLxC0+nqvhqFPJjPospNrn7dS9Un sP1w== X-Forwarded-Encrypted: i=1; AJvYcCVKSXxkOWtrmFoKjV+uac7DHF8WHA6HbjCv8gTEldsFX/eU0okGHTHjmpr1C2K3+mWKDezFMTA=@vger.kernel.org X-Gm-Message-State: AOJu0YwyimOGB8XR5QyIYuj0XK2I40gS1257WRzIjARrEzV0/CUAtceX K1j+ZY3reoxYsc9t6BhHN6yNUxAofxuRTysdrs9ZBoL1c4M+mTRwzAiEf1rd/113FQncdlD6OJr YQmQVRJ7bcY6hKl4yqV/ARfVTsnqVQ+61OOECZA/UWS1t6Yty9WQP/CB/CQ== X-Gm-Gg: ASbGncscFx94HdgIzX3eeNKzkmBoBQ6g9IRVzkjj3U5kzdhpHiiPlwzmH9LzaFovS6G jFiuHKuYtghtjQ73gM5wnv+QodkGX30rObvgl0ImL/D50UHYkhmbKqzXqxB45u5Zk5Ec0Lbn+C6 oVAmcAraJPEqcdAmtUJ+Vd6/mgk/tTc9qgon6DvlkO8yhQbWz4IfHLcULFbo2por80elhni3a8F UjSXKfDDO3G0qf7MqCt3Ct0LMQMfoXqBASWr86GQx9ZUD7Db4f2V9xEghyWW9jujYUM2v0NYBWE aK41h9/3kM7+c2FsRdwuAczPuG2QaITCBwrTOBkbTVgBQbNJKldRinuUcQkFTH4Agi8D6pLQ4gu KhAuUaBbyWeROQE3AX4Y= X-Received: by 2002:a05:6000:24c8:b0:3e7:471c:1de3 with SMTP id ffacd0b85a97d-4256714c990mr8743299f8f.14.1759759061330; 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: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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