From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=193.175.24.41 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793893543; b=amFNlXi2o+1e9xA4TA9LhFnjzGjSDs/lKXzT+E7fHDfCqRkexxQGGchh5w3sVirSIt5z 7wSxwVa+CD4c0YBEkEIfGOuPfQx7B+zLovDOhaao7k3/q1zFd8Ad+e75+z+NRl7HrSdjE 7LJbUisuR6dG1I/uqqDBrpjexoOL5FoZ6RB2Vb+UiYY2P2Q55ld64B5/LK/CnqlJXr4aU YYBMXwULOyU0c9WliSD1qb7EUvjF0EXcR1Vet5vCadAkU1aiAJ6/n5k9LtQxOuMRzzNAu 7sTPaflMxNX3TjQrlOPW3/ZKkM650h9WpY7nqupJtuNtiB1CHT87A4JJkPGlaJaSdHw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793893543; h=DMARC-Filter:Received:Received:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=tZ0ITfq3vtAfCiMG3pAeYL6xQK2P5z0xWeHSWOCGcFI=; b=4nTJkzT4C56jnBLc4Nh4aJAcY5hTWgE8qGaQ62JtB0WZJo7DbTHs4K5So+AtdyMcH66i N3Ij8GK2oX3gzOB7ua5KVrZvcvem6Cz3ZTsRZqNhUjz0MV+h7bW6Rh6SxXmNM5Z0Mlg8Q m6sneUpYsm6DIhy+TNH+zDXvP6vmkRwpIhabiNH998K5Xpd8Zn+wCSItA0G7n1FU3Yu+R 4ZVDN4+eh94awSCdvkbm/TD6TGAg84pQ8eRfr9L6VBa/lA8DZ0rKqBwysECSUpqTLohfd A0ooYHQNWGaIKPmtkvmU/j+js7WwhkvzLJyoK3eUbnbzMBHX0B4lA/vo6TBYZidqkxw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=alpha.franken.de; spf=pass smtp.mailfrom=alpha.franken.de; arc=none smtp.remote-ip=193.175.24.41 Received: from elvis.franken.de (elvis.franken.de [193.175.24.41]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9DB78606A335; Thu, 5 Nov 2026 15:45:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 9DB78606A335 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=alpha.franken.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alpha.franken.de Received: from uucp by elvis.franken.de with local-rmail (Exim 3.36 #1) id 1xOzeh-00071n-00; Thu, 05 Nov 2026 16:45:35 +0100 Received: by alpha.franken.de (Postfix, from userid 1000) id ABD22C0669; Thu, 5 Nov 2026 16:43:32 +0100 (CET) Date: Thu, 5 Nov 2026 16:43:32 +0100 From: Thomas Bogendoerfer To: Imre Kaloz Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/4] MIPS: sgi-ip32: Fence PIO reads on CRIME 1.1 Message-ID: References: <20261021192418.7246-1-kaloz@kernel.org> <20261021192418.7246-5-kaloz@kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261021192418.7246-5-kaloz@kernel.org> On Wed, Oct 21, 2026 at 09:24:18PM +0200, Imre Kaloz wrote: > On CRIME 1.1, a MACE or PCI read within about 2us of a read of some PCI > registers (aic7880 HCNTRL, INTSTAT, ERROR) can return that read's data. this reads strange, can you clarify what is happening ? Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]